Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1 | /* linux/drivers/video/s3c-fb.c |
| 2 | * |
| 3 | * Copyright 2008 Openmoko Inc. |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 4 | * Copyright 2008-2010 Simtec Electronics |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 5 | * Ben Dooks <ben@simtec.co.uk> |
| 6 | * http://armlinux.simtec.co.uk/ |
| 7 | * |
| 8 | * Samsung SoC Framebuffer driver |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License version 2 as |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 12 | * published by the Free Software FoundatIon. |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 13 | */ |
| 14 | |
| 15 | #include <linux/kernel.h> |
| 16 | #include <linux/module.h> |
| 17 | #include <linux/platform_device.h> |
| 18 | #include <linux/dma-mapping.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 19 | #include <linux/slab.h> |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 20 | #include <linux/init.h> |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 21 | #include <linux/clk.h> |
| 22 | #include <linux/fb.h> |
| 23 | #include <linux/io.h> |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 24 | #include <linux/uaccess.h> |
| 25 | #include <linux/interrupt.h> |
Jingoo Han | 4959212 | 2010-12-17 16:45:46 +0900 | [diff] [blame] | 26 | #include <linux/pm_runtime.h> |
Arnd Bergmann | bbfce37 | 2013-04-11 02:04:55 +0200 | [diff] [blame] | 27 | #include <linux/platform_data/video_s3c.h> |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 28 | |
Leela Krishna Amudala | 5a213a5 | 2012-08-08 09:44:49 +0900 | [diff] [blame] | 29 | #include <video/samsung_fimd.h> |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 30 | |
| 31 | /* This driver will export a number of framebuffer interfaces depending |
| 32 | * on the configuration passed in via the platform data. Each fb instance |
| 33 | * maps to a hardware window. Currently there is no support for runtime |
| 34 | * setting of the alpha-blending functions that each window has, so only |
| 35 | * window 0 is actually useful. |
| 36 | * |
| 37 | * Window 0 is treated specially, it is used for the basis of the LCD |
| 38 | * output timings and as the control for the output power-down state. |
| 39 | */ |
| 40 | |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 41 | /* note, the previous use of <mach/regs-fb.h> to get platform specific data |
| 42 | * has been replaced by using the platform device name to pick the correct |
| 43 | * configuration data for the system. |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 44 | */ |
| 45 | |
| 46 | #ifdef CONFIG_FB_S3C_DEBUG_REGWRITE |
| 47 | #undef writel |
| 48 | #define writel(v, r) do { \ |
Jingoo Han | 65302e4 | 2012-05-07 09:20:09 +0900 | [diff] [blame] | 49 | pr_debug("%s: %08x => %p\n", __func__, (unsigned int)v, r); \ |
Jingoo Han | 05e52b4 | 2012-01-26 19:38:45 +0900 | [diff] [blame] | 50 | __raw_writel(v, r); \ |
| 51 | } while (0) |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 52 | #endif /* FB_S3C_DEBUG_REGWRITE */ |
| 53 | |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 54 | /* irq_flags bits */ |
| 55 | #define S3C_FB_VSYNC_IRQ_EN 0 |
| 56 | |
| 57 | #define VSYNC_TIMEOUT_MSEC 50 |
| 58 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 59 | struct s3c_fb; |
| 60 | |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 61 | #define VALID_BPP(x) (1 << ((x) - 1)) |
| 62 | |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 63 | #define OSD_BASE(win, variant) ((variant).osd + ((win) * (variant).osd_stride)) |
| 64 | #define VIDOSD_A(win, variant) (OSD_BASE(win, variant) + 0x00) |
| 65 | #define VIDOSD_B(win, variant) (OSD_BASE(win, variant) + 0x04) |
| 66 | #define VIDOSD_C(win, variant) (OSD_BASE(win, variant) + 0x08) |
| 67 | #define VIDOSD_D(win, variant) (OSD_BASE(win, variant) + 0x0C) |
| 68 | |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 69 | /** |
| 70 | * struct s3c_fb_variant - fb variant information |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 71 | * @is_2443: Set if S3C2443/S3C2416 style hardware. |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 72 | * @nr_windows: The number of windows. |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 73 | * @vidtcon: The base for the VIDTCONx registers |
| 74 | * @wincon: The base for the WINxCON registers. |
| 75 | * @winmap: The base for the WINxMAP registers. |
| 76 | * @keycon: The abse for the WxKEYCON registers. |
| 77 | * @buf_start: Offset of buffer start registers. |
| 78 | * @buf_size: Offset of buffer size registers. |
| 79 | * @buf_end: Offset of buffer end registers. |
| 80 | * @osd: The base for the OSD registers. |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 81 | * @palette: Address of palette memory, or 0 if none. |
Pawel Osciak | 067b226 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 82 | * @has_prtcon: Set if has PRTCON register. |
Pawel Osciak | f5ec546 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 83 | * @has_shadowcon: Set if has SHADOWCON register. |
Jingoo Han | f7f31e5 | 2012-01-27 14:47:22 +0900 | [diff] [blame] | 84 | * @has_blendcon: Set if has BLENDCON register. |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 85 | * @has_clksel: Set if VIDCON0 register has CLKSEL bit. |
Jingoo Han | d8b97db | 2012-01-27 14:47:55 +0900 | [diff] [blame] | 86 | * @has_fixvclk: Set if VIDCON1 register has FIXVCLK bits. |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 87 | */ |
| 88 | struct s3c_fb_variant { |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 89 | unsigned int is_2443:1; |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 90 | unsigned short nr_windows; |
Jingoo Han | 5c44778 | 2012-03-06 15:53:41 +0900 | [diff] [blame] | 91 | unsigned int vidtcon; |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 92 | unsigned short wincon; |
| 93 | unsigned short winmap; |
| 94 | unsigned short keycon; |
| 95 | unsigned short buf_start; |
| 96 | unsigned short buf_end; |
| 97 | unsigned short buf_size; |
| 98 | unsigned short osd; |
| 99 | unsigned short osd_stride; |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 100 | unsigned short palette[S3C_FB_MAX_WIN]; |
Pawel Osciak | 067b226 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 101 | |
| 102 | unsigned int has_prtcon:1; |
Pawel Osciak | f5ec546 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 103 | unsigned int has_shadowcon:1; |
Jingoo Han | f7f31e5 | 2012-01-27 14:47:22 +0900 | [diff] [blame] | 104 | unsigned int has_blendcon:1; |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 105 | unsigned int has_clksel:1; |
Jingoo Han | d8b97db | 2012-01-27 14:47:55 +0900 | [diff] [blame] | 106 | unsigned int has_fixvclk:1; |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 107 | }; |
| 108 | |
| 109 | /** |
| 110 | * struct s3c_fb_win_variant |
| 111 | * @has_osd_c: Set if has OSD C register. |
| 112 | * @has_osd_d: Set if has OSD D register. |
Pawel Osciak | f676ec2 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 113 | * @has_osd_alpha: Set if can change alpha transparency for a window. |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 114 | * @palette_sz: Size of palette in entries. |
| 115 | * @palette_16bpp: Set if palette is 16bits wide. |
Pawel Osciak | f676ec2 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 116 | * @osd_size_off: If != 0, supports setting up OSD for a window; the appropriate |
| 117 | * register is located at the given offset from OSD_BASE. |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 118 | * @valid_bpp: 1 bit per BPP setting to show valid bits-per-pixel. |
| 119 | * |
| 120 | * valid_bpp bit x is set if (x+1)BPP is supported. |
| 121 | */ |
| 122 | struct s3c_fb_win_variant { |
| 123 | unsigned int has_osd_c:1; |
| 124 | unsigned int has_osd_d:1; |
Pawel Osciak | f676ec2 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 125 | unsigned int has_osd_alpha:1; |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 126 | unsigned int palette_16bpp:1; |
Pawel Osciak | f676ec2 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 127 | unsigned short osd_size_off; |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 128 | unsigned short palette_sz; |
| 129 | u32 valid_bpp; |
| 130 | }; |
| 131 | |
| 132 | /** |
| 133 | * struct s3c_fb_driverdata - per-device type driver data for init time. |
| 134 | * @variant: The variant information for this driver. |
| 135 | * @win: The window information for each window. |
| 136 | */ |
| 137 | struct s3c_fb_driverdata { |
| 138 | struct s3c_fb_variant variant; |
| 139 | struct s3c_fb_win_variant *win[S3C_FB_MAX_WIN]; |
| 140 | }; |
| 141 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 142 | /** |
Ben Dooks | bc2da1b | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 143 | * struct s3c_fb_palette - palette information |
| 144 | * @r: Red bitfield. |
| 145 | * @g: Green bitfield. |
| 146 | * @b: Blue bitfield. |
| 147 | * @a: Alpha bitfield. |
| 148 | */ |
| 149 | struct s3c_fb_palette { |
| 150 | struct fb_bitfield r; |
| 151 | struct fb_bitfield g; |
| 152 | struct fb_bitfield b; |
| 153 | struct fb_bitfield a; |
| 154 | }; |
| 155 | |
| 156 | /** |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 157 | * struct s3c_fb_win - per window private data for each framebuffer. |
| 158 | * @windata: The platform data supplied for the window configuration. |
| 159 | * @parent: The hardware that this window is part of. |
| 160 | * @fbinfo: Pointer pack to the framebuffer info for this window. |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 161 | * @varint: The variant information for this window. |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 162 | * @palette_buffer: Buffer/cache to hold palette entries. |
| 163 | * @pseudo_palette: For use in TRUECOLOUR modes for entries 0..15/ |
| 164 | * @index: The window number of this window. |
| 165 | * @palette: The bitfields for changing r/g/b into a hardware palette entry. |
| 166 | */ |
| 167 | struct s3c_fb_win { |
| 168 | struct s3c_fb_pd_win *windata; |
| 169 | struct s3c_fb *parent; |
| 170 | struct fb_info *fbinfo; |
| 171 | struct s3c_fb_palette palette; |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 172 | struct s3c_fb_win_variant variant; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 173 | |
| 174 | u32 *palette_buffer; |
| 175 | u32 pseudo_palette[16]; |
| 176 | unsigned int index; |
| 177 | }; |
| 178 | |
| 179 | /** |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 180 | * struct s3c_fb_vsync - vsync information |
| 181 | * @wait: a queue for processes waiting for vsync |
| 182 | * @count: vsync interrupt count |
| 183 | */ |
| 184 | struct s3c_fb_vsync { |
| 185 | wait_queue_head_t wait; |
| 186 | unsigned int count; |
| 187 | }; |
| 188 | |
| 189 | /** |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 190 | * struct s3c_fb - overall hardware state of the hardware |
Jingoo Han | 0a109d3 | 2012-09-27 19:24:05 +0900 | [diff] [blame] | 191 | * @slock: The spinlock protection for this data structure. |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 192 | * @dev: The device that we bound to, for printing, etc. |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 193 | * @bus_clk: The clk (hclk) feeding our interface and possibly pixclk. |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 194 | * @lcd_clk: The clk (sclk) feeding pixclk. |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 195 | * @regs: The mapped hardware registers. |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 196 | * @variant: Variant information for this hardware. |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 197 | * @enabled: A bitmask of enabled hardware windows. |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 198 | * @output_on: Flag if the physical output is enabled. |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 199 | * @pdata: The platform configuration data passed with the device. |
| 200 | * @windows: The hardware windows that have been claimed. |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 201 | * @irq_no: IRQ line number |
| 202 | * @irq_flags: irq flags |
| 203 | * @vsync_info: VSYNC-related information (count, queues...) |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 204 | */ |
| 205 | struct s3c_fb { |
Jingoo Han | b07f3bbe | 2011-04-11 07:25:37 +0000 | [diff] [blame] | 206 | spinlock_t slock; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 207 | struct device *dev; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 208 | struct clk *bus_clk; |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 209 | struct clk *lcd_clk; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 210 | void __iomem *regs; |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 211 | struct s3c_fb_variant variant; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 212 | |
| 213 | unsigned char enabled; |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 214 | bool output_on; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 215 | |
| 216 | struct s3c_fb_platdata *pdata; |
| 217 | struct s3c_fb_win *windows[S3C_FB_MAX_WIN]; |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 218 | |
| 219 | int irq_no; |
| 220 | unsigned long irq_flags; |
| 221 | struct s3c_fb_vsync vsync_info; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 222 | }; |
| 223 | |
| 224 | /** |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 225 | * s3c_fb_validate_win_bpp - validate the bits-per-pixel for this mode. |
| 226 | * @win: The device window. |
| 227 | * @bpp: The bit depth. |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 228 | */ |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 229 | static bool s3c_fb_validate_win_bpp(struct s3c_fb_win *win, unsigned int bpp) |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 230 | { |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 231 | return win->variant.valid_bpp & VALID_BPP(bpp); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 232 | } |
| 233 | |
| 234 | /** |
| 235 | * s3c_fb_check_var() - framebuffer layer request to verify a given mode. |
| 236 | * @var: The screen information to verify. |
| 237 | * @info: The framebuffer device. |
| 238 | * |
| 239 | * Framebuffer layer call to verify the given information and allow us to |
| 240 | * update various information depending on the hardware capabilities. |
| 241 | */ |
| 242 | static int s3c_fb_check_var(struct fb_var_screeninfo *var, |
| 243 | struct fb_info *info) |
| 244 | { |
| 245 | struct s3c_fb_win *win = info->par; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 246 | struct s3c_fb *sfb = win->parent; |
| 247 | |
| 248 | dev_dbg(sfb->dev, "checking parameters\n"); |
| 249 | |
Jingoo Han | 13e6af8 | 2011-06-09 04:26:38 +0000 | [diff] [blame] | 250 | var->xres_virtual = max(var->xres_virtual, var->xres); |
| 251 | var->yres_virtual = max(var->yres_virtual, var->yres); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 252 | |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 253 | if (!s3c_fb_validate_win_bpp(win, var->bits_per_pixel)) { |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 254 | dev_dbg(sfb->dev, "win %d: unsupported bpp %d\n", |
| 255 | win->index, var->bits_per_pixel); |
| 256 | return -EINVAL; |
| 257 | } |
| 258 | |
| 259 | /* always ensure these are zero, for drop through cases below */ |
| 260 | var->transp.offset = 0; |
| 261 | var->transp.length = 0; |
| 262 | |
| 263 | switch (var->bits_per_pixel) { |
| 264 | case 1: |
| 265 | case 2: |
| 266 | case 4: |
| 267 | case 8: |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 268 | if (sfb->variant.palette[win->index] != 0) { |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 269 | /* non palletised, A:1,R:2,G:3,B:2 mode */ |
Jingoo Han | 5a9c30a | 2012-10-26 15:41:49 +0900 | [diff] [blame] | 270 | var->red.offset = 5; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 271 | var->green.offset = 2; |
| 272 | var->blue.offset = 0; |
Jingoo Han | 5a9c30a | 2012-10-26 15:41:49 +0900 | [diff] [blame] | 273 | var->red.length = 2; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 274 | var->green.length = 3; |
| 275 | var->blue.length = 2; |
| 276 | var->transp.offset = 7; |
| 277 | var->transp.length = 1; |
| 278 | } else { |
| 279 | var->red.offset = 0; |
| 280 | var->red.length = var->bits_per_pixel; |
| 281 | var->green = var->red; |
| 282 | var->blue = var->red; |
| 283 | } |
| 284 | break; |
| 285 | |
| 286 | case 19: |
| 287 | /* 666 with one bit alpha/transparency */ |
| 288 | var->transp.offset = 18; |
| 289 | var->transp.length = 1; |
Jingoo Han | d65c6a9 | 2012-10-26 14:34:24 +0900 | [diff] [blame] | 290 | /* drop through */ |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 291 | case 18: |
| 292 | var->bits_per_pixel = 32; |
| 293 | |
| 294 | /* 666 format */ |
| 295 | var->red.offset = 12; |
| 296 | var->green.offset = 6; |
| 297 | var->blue.offset = 0; |
| 298 | var->red.length = 6; |
| 299 | var->green.length = 6; |
| 300 | var->blue.length = 6; |
| 301 | break; |
| 302 | |
| 303 | case 16: |
| 304 | /* 16 bpp, 565 format */ |
| 305 | var->red.offset = 11; |
| 306 | var->green.offset = 5; |
| 307 | var->blue.offset = 0; |
| 308 | var->red.length = 5; |
| 309 | var->green.length = 6; |
| 310 | var->blue.length = 5; |
| 311 | break; |
| 312 | |
Jingoo Han | af1ce6b | 2011-05-24 08:55:23 +0000 | [diff] [blame] | 313 | case 32: |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 314 | case 28: |
| 315 | case 25: |
| 316 | var->transp.length = var->bits_per_pixel - 24; |
| 317 | var->transp.offset = 24; |
| 318 | /* drop through */ |
| 319 | case 24: |
| 320 | /* our 24bpp is unpacked, so 32bpp */ |
| 321 | var->bits_per_pixel = 32; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 322 | var->red.offset = 16; |
| 323 | var->red.length = 8; |
| 324 | var->green.offset = 8; |
| 325 | var->green.length = 8; |
| 326 | var->blue.offset = 0; |
| 327 | var->blue.length = 8; |
| 328 | break; |
| 329 | |
| 330 | default: |
| 331 | dev_err(sfb->dev, "invalid bpp\n"); |
Jingoo Han | 418d620 | 2012-10-26 14:54:01 +0900 | [diff] [blame] | 332 | return -EINVAL; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 333 | } |
| 334 | |
| 335 | dev_dbg(sfb->dev, "%s: verified parameters\n", __func__); |
| 336 | return 0; |
| 337 | } |
| 338 | |
| 339 | /** |
| 340 | * s3c_fb_calc_pixclk() - calculate the divider to create the pixel clock. |
| 341 | * @sfb: The hardware state. |
| 342 | * @pixclock: The pixel clock wanted, in picoseconds. |
| 343 | * |
| 344 | * Given the specified pixel clock, work out the necessary divider to get |
| 345 | * close to the output frequency. |
| 346 | */ |
Mark Brown | eb29a5c | 2010-01-15 17:01:40 -0800 | [diff] [blame] | 347 | static int s3c_fb_calc_pixclk(struct s3c_fb *sfb, unsigned int pixclk) |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 348 | { |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 349 | unsigned long clk; |
Mark Brown | eb29a5c | 2010-01-15 17:01:40 -0800 | [diff] [blame] | 350 | unsigned long long tmp; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 351 | unsigned int result; |
| 352 | |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 353 | if (sfb->variant.has_clksel) |
| 354 | clk = clk_get_rate(sfb->bus_clk); |
| 355 | else |
| 356 | clk = clk_get_rate(sfb->lcd_clk); |
| 357 | |
Mark Brown | eb29a5c | 2010-01-15 17:01:40 -0800 | [diff] [blame] | 358 | tmp = (unsigned long long)clk; |
| 359 | tmp *= pixclk; |
| 360 | |
| 361 | do_div(tmp, 1000000000UL); |
| 362 | result = (unsigned int)tmp / 1000; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 363 | |
| 364 | dev_dbg(sfb->dev, "pixclk=%u, clk=%lu, div=%d (%lu)\n", |
Jingoo Han | b679895 | 2012-06-11 11:27:27 +0900 | [diff] [blame] | 365 | pixclk, clk, result, result ? clk / result : clk); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 366 | |
| 367 | return result; |
| 368 | } |
| 369 | |
| 370 | /** |
| 371 | * s3c_fb_align_word() - align pixel count to word boundary |
| 372 | * @bpp: The number of bits per pixel |
| 373 | * @pix: The value to be aligned. |
| 374 | * |
| 375 | * Align the given pixel count so that it will start on an 32bit word |
| 376 | * boundary. |
| 377 | */ |
| 378 | static int s3c_fb_align_word(unsigned int bpp, unsigned int pix) |
| 379 | { |
| 380 | int pix_per_word; |
| 381 | |
| 382 | if (bpp > 16) |
| 383 | return pix; |
| 384 | |
| 385 | pix_per_word = (8 * 32) / bpp; |
| 386 | return ALIGN(pix, pix_per_word); |
| 387 | } |
| 388 | |
| 389 | /** |
Pawel Osciak | f676ec2 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 390 | * vidosd_set_size() - set OSD size for a window |
| 391 | * |
| 392 | * @win: the window to set OSD size for |
| 393 | * @size: OSD size register value |
| 394 | */ |
| 395 | static void vidosd_set_size(struct s3c_fb_win *win, u32 size) |
| 396 | { |
| 397 | struct s3c_fb *sfb = win->parent; |
| 398 | |
| 399 | /* OSD can be set up if osd_size_off != 0 for this window */ |
| 400 | if (win->variant.osd_size_off) |
| 401 | writel(size, sfb->regs + OSD_BASE(win->index, sfb->variant) |
| 402 | + win->variant.osd_size_off); |
| 403 | } |
| 404 | |
| 405 | /** |
| 406 | * vidosd_set_alpha() - set alpha transparency for a window |
| 407 | * |
| 408 | * @win: the window to set OSD size for |
| 409 | * @alpha: alpha register value |
| 410 | */ |
| 411 | static void vidosd_set_alpha(struct s3c_fb_win *win, u32 alpha) |
| 412 | { |
| 413 | struct s3c_fb *sfb = win->parent; |
| 414 | |
| 415 | if (win->variant.has_osd_alpha) |
| 416 | writel(alpha, sfb->regs + VIDOSD_C(win->index, sfb->variant)); |
| 417 | } |
| 418 | |
| 419 | /** |
Pawel Osciak | f5ec546 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 420 | * shadow_protect_win() - disable updating values from shadow registers at vsync |
| 421 | * |
| 422 | * @win: window to protect registers for |
| 423 | * @protect: 1 to protect (disable updates) |
| 424 | */ |
| 425 | static void shadow_protect_win(struct s3c_fb_win *win, bool protect) |
| 426 | { |
| 427 | struct s3c_fb *sfb = win->parent; |
| 428 | u32 reg; |
| 429 | |
| 430 | if (protect) { |
| 431 | if (sfb->variant.has_prtcon) { |
| 432 | writel(PRTCON_PROTECT, sfb->regs + PRTCON); |
| 433 | } else if (sfb->variant.has_shadowcon) { |
| 434 | reg = readl(sfb->regs + SHADOWCON); |
| 435 | writel(reg | SHADOWCON_WINx_PROTECT(win->index), |
| 436 | sfb->regs + SHADOWCON); |
| 437 | } |
| 438 | } else { |
| 439 | if (sfb->variant.has_prtcon) { |
| 440 | writel(0, sfb->regs + PRTCON); |
| 441 | } else if (sfb->variant.has_shadowcon) { |
| 442 | reg = readl(sfb->regs + SHADOWCON); |
| 443 | writel(reg & ~SHADOWCON_WINx_PROTECT(win->index), |
| 444 | sfb->regs + SHADOWCON); |
| 445 | } |
| 446 | } |
| 447 | } |
| 448 | |
| 449 | /** |
Mark Brown | a2b77dc | 2011-12-27 14:16:08 +0000 | [diff] [blame] | 450 | * s3c_fb_enable() - Set the state of the main LCD output |
| 451 | * @sfb: The main framebuffer state. |
| 452 | * @enable: The state to set. |
| 453 | */ |
| 454 | static void s3c_fb_enable(struct s3c_fb *sfb, int enable) |
| 455 | { |
| 456 | u32 vidcon0 = readl(sfb->regs + VIDCON0); |
| 457 | |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 458 | if (enable && !sfb->output_on) |
| 459 | pm_runtime_get_sync(sfb->dev); |
| 460 | |
| 461 | if (enable) { |
Mark Brown | a2b77dc | 2011-12-27 14:16:08 +0000 | [diff] [blame] | 462 | vidcon0 |= VIDCON0_ENVID | VIDCON0_ENVID_F; |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 463 | } else { |
Mark Brown | a2b77dc | 2011-12-27 14:16:08 +0000 | [diff] [blame] | 464 | /* see the note in the framebuffer datasheet about |
| 465 | * why you cannot take both of these bits down at the |
| 466 | * same time. */ |
| 467 | |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 468 | if (vidcon0 & VIDCON0_ENVID) { |
| 469 | vidcon0 |= VIDCON0_ENVID; |
| 470 | vidcon0 &= ~VIDCON0_ENVID_F; |
| 471 | } |
Mark Brown | a2b77dc | 2011-12-27 14:16:08 +0000 | [diff] [blame] | 472 | } |
| 473 | |
| 474 | writel(vidcon0, sfb->regs + VIDCON0); |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 475 | |
| 476 | if (!enable && sfb->output_on) |
| 477 | pm_runtime_put_sync(sfb->dev); |
| 478 | |
| 479 | sfb->output_on = enable; |
Mark Brown | a2b77dc | 2011-12-27 14:16:08 +0000 | [diff] [blame] | 480 | } |
| 481 | |
| 482 | /** |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 483 | * s3c_fb_set_par() - framebuffer request to set new framebuffer state. |
| 484 | * @info: The framebuffer to change. |
| 485 | * |
| 486 | * Framebuffer layer request to set a new mode for the specified framebuffer |
| 487 | */ |
| 488 | static int s3c_fb_set_par(struct fb_info *info) |
| 489 | { |
| 490 | struct fb_var_screeninfo *var = &info->var; |
| 491 | struct s3c_fb_win *win = info->par; |
| 492 | struct s3c_fb *sfb = win->parent; |
| 493 | void __iomem *regs = sfb->regs; |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 494 | void __iomem *buf = regs; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 495 | int win_no = win->index; |
Pawel Osciak | f676ec2 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 496 | u32 alpha = 0; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 497 | u32 data; |
| 498 | u32 pagewidth; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 499 | |
| 500 | dev_dbg(sfb->dev, "setting framebuffer parameters\n"); |
| 501 | |
Mark Brown | 5751b23 | 2011-12-27 14:16:11 +0000 | [diff] [blame] | 502 | pm_runtime_get_sync(sfb->dev); |
| 503 | |
Pawel Osciak | a8bdabc | 2010-08-10 18:02:41 -0700 | [diff] [blame] | 504 | shadow_protect_win(win, 1); |
| 505 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 506 | switch (var->bits_per_pixel) { |
| 507 | case 32: |
| 508 | case 24: |
| 509 | case 16: |
| 510 | case 12: |
| 511 | info->fix.visual = FB_VISUAL_TRUECOLOR; |
| 512 | break; |
| 513 | case 8: |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 514 | if (win->variant.palette_sz >= 256) |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 515 | info->fix.visual = FB_VISUAL_PSEUDOCOLOR; |
| 516 | else |
| 517 | info->fix.visual = FB_VISUAL_TRUECOLOR; |
| 518 | break; |
| 519 | case 1: |
| 520 | info->fix.visual = FB_VISUAL_MONO01; |
| 521 | break; |
| 522 | default: |
| 523 | info->fix.visual = FB_VISUAL_PSEUDOCOLOR; |
| 524 | break; |
| 525 | } |
| 526 | |
| 527 | info->fix.line_length = (var->xres_virtual * var->bits_per_pixel) / 8; |
| 528 | |
Pawel Osciak | 067b226 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 529 | info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0; |
| 530 | info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0; |
| 531 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 532 | /* disable the window whilst we update it */ |
| 533 | writel(0, regs + WINCON(win_no)); |
| 534 | |
Thomas Abraham | 3c58264 | 2012-03-24 21:58:46 +0530 | [diff] [blame] | 535 | if (!sfb->output_on) |
Mark Brown | a2b77dc | 2011-12-27 14:16:08 +0000 | [diff] [blame] | 536 | s3c_fb_enable(sfb, 1); |
| 537 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 538 | /* write the buffer address */ |
| 539 | |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 540 | /* start and end registers stride is 8 */ |
| 541 | buf = regs + win_no * 8; |
| 542 | |
| 543 | writel(info->fix.smem_start, buf + sfb->variant.buf_start); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 544 | |
| 545 | data = info->fix.smem_start + info->fix.line_length * var->yres; |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 546 | writel(data, buf + sfb->variant.buf_end); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 547 | |
| 548 | pagewidth = (var->xres * var->bits_per_pixel) >> 3; |
| 549 | data = VIDW_BUF_SIZE_OFFSET(info->fix.line_length - pagewidth) | |
Jingoo Han | 5c44778 | 2012-03-06 15:53:41 +0900 | [diff] [blame] | 550 | VIDW_BUF_SIZE_PAGEWIDTH(pagewidth) | |
| 551 | VIDW_BUF_SIZE_OFFSET_E(info->fix.line_length - pagewidth) | |
| 552 | VIDW_BUF_SIZE_PAGEWIDTH_E(pagewidth); |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 553 | writel(data, regs + sfb->variant.buf_size + (win_no * 4)); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 554 | |
| 555 | /* write 'OSD' registers to control position of framebuffer */ |
| 556 | |
Jingoo Han | 5c44778 | 2012-03-06 15:53:41 +0900 | [diff] [blame] | 557 | data = VIDOSDxA_TOPLEFT_X(0) | VIDOSDxA_TOPLEFT_Y(0) | |
| 558 | VIDOSDxA_TOPLEFT_X_E(0) | VIDOSDxA_TOPLEFT_Y_E(0); |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 559 | writel(data, regs + VIDOSD_A(win_no, sfb->variant)); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 560 | |
| 561 | data = VIDOSDxB_BOTRIGHT_X(s3c_fb_align_word(var->bits_per_pixel, |
| 562 | var->xres - 1)) | |
Jingoo Han | 5c44778 | 2012-03-06 15:53:41 +0900 | [diff] [blame] | 563 | VIDOSDxB_BOTRIGHT_Y(var->yres - 1) | |
| 564 | VIDOSDxB_BOTRIGHT_X_E(s3c_fb_align_word(var->bits_per_pixel, |
| 565 | var->xres - 1)) | |
| 566 | VIDOSDxB_BOTRIGHT_Y_E(var->yres - 1); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 567 | |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 568 | writel(data, regs + VIDOSD_B(win_no, sfb->variant)); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 569 | |
| 570 | data = var->xres * var->yres; |
InKi Dae | 39000d6 | 2009-06-16 15:34:27 -0700 | [diff] [blame] | 571 | |
Pawel Osciak | f676ec2 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 572 | alpha = VIDISD14C_ALPHA1_R(0xf) | |
InKi Dae | 39000d6 | 2009-06-16 15:34:27 -0700 | [diff] [blame] | 573 | VIDISD14C_ALPHA1_G(0xf) | |
| 574 | VIDISD14C_ALPHA1_B(0xf); |
| 575 | |
Pawel Osciak | f676ec2 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 576 | vidosd_set_alpha(win, alpha); |
| 577 | vidosd_set_size(win, data); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 578 | |
Jingoo Han | fab7c5b | 2011-06-09 04:26:45 +0000 | [diff] [blame] | 579 | /* Enable DMA channel for this window */ |
| 580 | if (sfb->variant.has_shadowcon) { |
| 581 | data = readl(sfb->regs + SHADOWCON); |
| 582 | data |= SHADOWCON_CHx_ENABLE(win_no); |
| 583 | writel(data, sfb->regs + SHADOWCON); |
| 584 | } |
| 585 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 586 | data = WINCONx_ENWIN; |
Jingoo Han | 2d9ae7a | 2011-12-02 19:07:17 +0900 | [diff] [blame] | 587 | sfb->enabled |= (1 << win->index); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 588 | |
| 589 | /* note, since we have to round up the bits-per-pixel, we end up |
| 590 | * relying on the bitfield information for r/g/b/a to work out |
| 591 | * exactly which mode of operation is intended. */ |
| 592 | |
| 593 | switch (var->bits_per_pixel) { |
| 594 | case 1: |
| 595 | data |= WINCON0_BPPMODE_1BPP; |
| 596 | data |= WINCONx_BITSWP; |
| 597 | data |= WINCONx_BURSTLEN_4WORD; |
| 598 | break; |
| 599 | case 2: |
| 600 | data |= WINCON0_BPPMODE_2BPP; |
| 601 | data |= WINCONx_BITSWP; |
| 602 | data |= WINCONx_BURSTLEN_8WORD; |
| 603 | break; |
| 604 | case 4: |
| 605 | data |= WINCON0_BPPMODE_4BPP; |
| 606 | data |= WINCONx_BITSWP; |
| 607 | data |= WINCONx_BURSTLEN_8WORD; |
| 608 | break; |
| 609 | case 8: |
| 610 | if (var->transp.length != 0) |
| 611 | data |= WINCON1_BPPMODE_8BPP_1232; |
| 612 | else |
| 613 | data |= WINCON0_BPPMODE_8BPP_PALETTE; |
| 614 | data |= WINCONx_BURSTLEN_8WORD; |
| 615 | data |= WINCONx_BYTSWP; |
| 616 | break; |
| 617 | case 16: |
| 618 | if (var->transp.length != 0) |
| 619 | data |= WINCON1_BPPMODE_16BPP_A1555; |
| 620 | else |
| 621 | data |= WINCON0_BPPMODE_16BPP_565; |
| 622 | data |= WINCONx_HAWSWP; |
| 623 | data |= WINCONx_BURSTLEN_16WORD; |
| 624 | break; |
| 625 | case 24: |
| 626 | case 32: |
| 627 | if (var->red.length == 6) { |
| 628 | if (var->transp.length != 0) |
| 629 | data |= WINCON1_BPPMODE_19BPP_A1666; |
| 630 | else |
| 631 | data |= WINCON1_BPPMODE_18BPP_666; |
InKi Dae | 39000d6 | 2009-06-16 15:34:27 -0700 | [diff] [blame] | 632 | } else if (var->transp.length == 1) |
| 633 | data |= WINCON1_BPPMODE_25BPP_A1888 |
| 634 | | WINCON1_BLD_PIX; |
Jingoo Han | 4420dd2 | 2011-11-07 15:03:01 +0900 | [diff] [blame] | 635 | else if ((var->transp.length == 4) || |
| 636 | (var->transp.length == 8)) |
InKi Dae | 39000d6 | 2009-06-16 15:34:27 -0700 | [diff] [blame] | 637 | data |= WINCON1_BPPMODE_28BPP_A4888 |
| 638 | | WINCON1_BLD_PIX | WINCON1_ALPHA_SEL; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 639 | else |
| 640 | data |= WINCON0_BPPMODE_24BPP_888; |
| 641 | |
InKi Dae | dc8498c | 2010-08-10 18:02:32 -0700 | [diff] [blame] | 642 | data |= WINCONx_WSWP; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 643 | data |= WINCONx_BURSTLEN_16WORD; |
| 644 | break; |
| 645 | } |
| 646 | |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 647 | /* Enable the colour keying for the window below this one */ |
InKi Dae | 39000d6 | 2009-06-16 15:34:27 -0700 | [diff] [blame] | 648 | if (win_no > 0) { |
| 649 | u32 keycon0_data = 0, keycon1_data = 0; |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 650 | void __iomem *keycon = regs + sfb->variant.keycon; |
InKi Dae | 39000d6 | 2009-06-16 15:34:27 -0700 | [diff] [blame] | 651 | |
| 652 | keycon0_data = ~(WxKEYCON0_KEYBL_EN | |
| 653 | WxKEYCON0_KEYEN_F | |
| 654 | WxKEYCON0_DIRCON) | WxKEYCON0_COMPKEY(0); |
| 655 | |
| 656 | keycon1_data = WxKEYCON1_COLVAL(0xffffff); |
| 657 | |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 658 | keycon += (win_no - 1) * 8; |
| 659 | |
| 660 | writel(keycon0_data, keycon + WKEYCON0); |
| 661 | writel(keycon1_data, keycon + WKEYCON1); |
InKi Dae | 39000d6 | 2009-06-16 15:34:27 -0700 | [diff] [blame] | 662 | } |
| 663 | |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 664 | writel(data, regs + sfb->variant.wincon + (win_no * 4)); |
| 665 | writel(0x0, regs + sfb->variant.winmap + (win_no * 4)); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 666 | |
Jingoo Han | f7f31e5 | 2012-01-27 14:47:22 +0900 | [diff] [blame] | 667 | /* Set alpha value width */ |
| 668 | if (sfb->variant.has_blendcon) { |
| 669 | data = readl(sfb->regs + BLENDCON); |
| 670 | data &= ~BLENDCON_NEW_MASK; |
| 671 | if (var->transp.length > 4) |
| 672 | data |= BLENDCON_NEW_8BIT_ALPHA_VALUE; |
| 673 | else |
| 674 | data |= BLENDCON_NEW_4BIT_ALPHA_VALUE; |
| 675 | writel(data, sfb->regs + BLENDCON); |
| 676 | } |
| 677 | |
Pawel Osciak | a8bdabc | 2010-08-10 18:02:41 -0700 | [diff] [blame] | 678 | shadow_protect_win(win, 0); |
| 679 | |
Mark Brown | 5751b23 | 2011-12-27 14:16:11 +0000 | [diff] [blame] | 680 | pm_runtime_put_sync(sfb->dev); |
| 681 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 682 | return 0; |
| 683 | } |
| 684 | |
| 685 | /** |
| 686 | * s3c_fb_update_palette() - set or schedule a palette update. |
| 687 | * @sfb: The hardware information. |
| 688 | * @win: The window being updated. |
| 689 | * @reg: The palette index being changed. |
| 690 | * @value: The computed palette value. |
| 691 | * |
| 692 | * Change the value of a palette register, either by directly writing to |
| 693 | * the palette (this requires the palette RAM to be disconnected from the |
| 694 | * hardware whilst this is in progress) or schedule the update for later. |
| 695 | * |
| 696 | * At the moment, since we have no VSYNC interrupt support, we simply set |
| 697 | * the palette entry directly. |
| 698 | */ |
| 699 | static void s3c_fb_update_palette(struct s3c_fb *sfb, |
| 700 | struct s3c_fb_win *win, |
| 701 | unsigned int reg, |
| 702 | u32 value) |
| 703 | { |
| 704 | void __iomem *palreg; |
| 705 | u32 palcon; |
| 706 | |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 707 | palreg = sfb->regs + sfb->variant.palette[win->index]; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 708 | |
| 709 | dev_dbg(sfb->dev, "%s: win %d, reg %d (%p): %08x\n", |
| 710 | __func__, win->index, reg, palreg, value); |
| 711 | |
| 712 | win->palette_buffer[reg] = value; |
| 713 | |
| 714 | palcon = readl(sfb->regs + WPALCON); |
| 715 | writel(palcon | WPALCON_PAL_UPDATE, sfb->regs + WPALCON); |
| 716 | |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 717 | if (win->variant.palette_16bpp) |
| 718 | writew(value, palreg + (reg * 2)); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 719 | else |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 720 | writel(value, palreg + (reg * 4)); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 721 | |
| 722 | writel(palcon, sfb->regs + WPALCON); |
| 723 | } |
| 724 | |
| 725 | static inline unsigned int chan_to_field(unsigned int chan, |
| 726 | struct fb_bitfield *bf) |
| 727 | { |
| 728 | chan &= 0xffff; |
| 729 | chan >>= 16 - bf->length; |
| 730 | return chan << bf->offset; |
| 731 | } |
| 732 | |
| 733 | /** |
| 734 | * s3c_fb_setcolreg() - framebuffer layer request to change palette. |
| 735 | * @regno: The palette index to change. |
| 736 | * @red: The red field for the palette data. |
| 737 | * @green: The green field for the palette data. |
| 738 | * @blue: The blue field for the palette data. |
| 739 | * @trans: The transparency (alpha) field for the palette data. |
| 740 | * @info: The framebuffer being changed. |
| 741 | */ |
| 742 | static int s3c_fb_setcolreg(unsigned regno, |
| 743 | unsigned red, unsigned green, unsigned blue, |
| 744 | unsigned transp, struct fb_info *info) |
| 745 | { |
| 746 | struct s3c_fb_win *win = info->par; |
| 747 | struct s3c_fb *sfb = win->parent; |
| 748 | unsigned int val; |
| 749 | |
| 750 | dev_dbg(sfb->dev, "%s: win %d: %d => rgb=%d/%d/%d\n", |
| 751 | __func__, win->index, regno, red, green, blue); |
| 752 | |
Mark Brown | 5751b23 | 2011-12-27 14:16:11 +0000 | [diff] [blame] | 753 | pm_runtime_get_sync(sfb->dev); |
| 754 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 755 | switch (info->fix.visual) { |
| 756 | case FB_VISUAL_TRUECOLOR: |
| 757 | /* true-colour, use pseudo-palette */ |
| 758 | |
| 759 | if (regno < 16) { |
| 760 | u32 *pal = info->pseudo_palette; |
| 761 | |
| 762 | val = chan_to_field(red, &info->var.red); |
| 763 | val |= chan_to_field(green, &info->var.green); |
| 764 | val |= chan_to_field(blue, &info->var.blue); |
| 765 | |
| 766 | pal[regno] = val; |
| 767 | } |
| 768 | break; |
| 769 | |
| 770 | case FB_VISUAL_PSEUDOCOLOR: |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 771 | if (regno < win->variant.palette_sz) { |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 772 | val = chan_to_field(red, &win->palette.r); |
| 773 | val |= chan_to_field(green, &win->palette.g); |
| 774 | val |= chan_to_field(blue, &win->palette.b); |
| 775 | |
| 776 | s3c_fb_update_palette(sfb, win, regno, val); |
| 777 | } |
| 778 | |
| 779 | break; |
| 780 | |
| 781 | default: |
Mark Brown | 5751b23 | 2011-12-27 14:16:11 +0000 | [diff] [blame] | 782 | pm_runtime_put_sync(sfb->dev); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 783 | return 1; /* unknown type */ |
| 784 | } |
| 785 | |
Mark Brown | 5751b23 | 2011-12-27 14:16:11 +0000 | [diff] [blame] | 786 | pm_runtime_put_sync(sfb->dev); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 787 | return 0; |
| 788 | } |
| 789 | |
| 790 | /** |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 791 | * s3c_fb_blank() - blank or unblank the given window |
| 792 | * @blank_mode: The blank state from FB_BLANK_* |
| 793 | * @info: The framebuffer to blank. |
| 794 | * |
| 795 | * Framebuffer layer request to change the power state. |
| 796 | */ |
| 797 | static int s3c_fb_blank(int blank_mode, struct fb_info *info) |
| 798 | { |
| 799 | struct s3c_fb_win *win = info->par; |
| 800 | struct s3c_fb *sfb = win->parent; |
| 801 | unsigned int index = win->index; |
| 802 | u32 wincon; |
Thomas Abraham | 3c58264 | 2012-03-24 21:58:46 +0530 | [diff] [blame] | 803 | u32 output_on = sfb->output_on; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 804 | |
| 805 | dev_dbg(sfb->dev, "blank mode %d\n", blank_mode); |
| 806 | |
Mark Brown | 5751b23 | 2011-12-27 14:16:11 +0000 | [diff] [blame] | 807 | pm_runtime_get_sync(sfb->dev); |
| 808 | |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 809 | wincon = readl(sfb->regs + sfb->variant.wincon + (index * 4)); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 810 | |
| 811 | switch (blank_mode) { |
| 812 | case FB_BLANK_POWERDOWN: |
| 813 | wincon &= ~WINCONx_ENWIN; |
| 814 | sfb->enabled &= ~(1 << index); |
| 815 | /* fall through to FB_BLANK_NORMAL */ |
| 816 | |
| 817 | case FB_BLANK_NORMAL: |
| 818 | /* disable the DMA and display 0x0 (black) */ |
Jingoo Han | ff8c910 | 2011-12-08 18:08:00 +0900 | [diff] [blame] | 819 | shadow_protect_win(win, 1); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 820 | writel(WINxMAP_MAP | WINxMAP_MAP_COLOUR(0x0), |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 821 | sfb->regs + sfb->variant.winmap + (index * 4)); |
Jingoo Han | ff8c910 | 2011-12-08 18:08:00 +0900 | [diff] [blame] | 822 | shadow_protect_win(win, 0); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 823 | break; |
| 824 | |
| 825 | case FB_BLANK_UNBLANK: |
Jingoo Han | ff8c910 | 2011-12-08 18:08:00 +0900 | [diff] [blame] | 826 | shadow_protect_win(win, 1); |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 827 | writel(0x0, sfb->regs + sfb->variant.winmap + (index * 4)); |
Jingoo Han | ff8c910 | 2011-12-08 18:08:00 +0900 | [diff] [blame] | 828 | shadow_protect_win(win, 0); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 829 | wincon |= WINCONx_ENWIN; |
| 830 | sfb->enabled |= (1 << index); |
| 831 | break; |
| 832 | |
| 833 | case FB_BLANK_VSYNC_SUSPEND: |
| 834 | case FB_BLANK_HSYNC_SUSPEND: |
| 835 | default: |
Mark Brown | 5751b23 | 2011-12-27 14:16:11 +0000 | [diff] [blame] | 836 | pm_runtime_put_sync(sfb->dev); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 837 | return 1; |
| 838 | } |
| 839 | |
Jingoo Han | ff8c910 | 2011-12-08 18:08:00 +0900 | [diff] [blame] | 840 | shadow_protect_win(win, 1); |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 841 | writel(wincon, sfb->regs + sfb->variant.wincon + (index * 4)); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 842 | |
| 843 | /* Check the enabled state to see if we need to be running the |
| 844 | * main LCD interface, as if there are no active windows then |
| 845 | * it is highly likely that we also do not need to output |
| 846 | * anything. |
| 847 | */ |
Thomas Abraham | 3c58264 | 2012-03-24 21:58:46 +0530 | [diff] [blame] | 848 | s3c_fb_enable(sfb, sfb->enabled ? 1 : 0); |
| 849 | shadow_protect_win(win, 0); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 850 | |
Mark Brown | 5751b23 | 2011-12-27 14:16:11 +0000 | [diff] [blame] | 851 | pm_runtime_put_sync(sfb->dev); |
| 852 | |
Thomas Abraham | 3c58264 | 2012-03-24 21:58:46 +0530 | [diff] [blame] | 853 | return output_on == sfb->output_on; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 854 | } |
| 855 | |
Pawel Osciak | 067b226 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 856 | /** |
| 857 | * s3c_fb_pan_display() - Pan the display. |
| 858 | * |
| 859 | * Note that the offsets can be written to the device at any time, as their |
| 860 | * values are latched at each vsync automatically. This also means that only |
| 861 | * the last call to this function will have any effect on next vsync, but |
| 862 | * there is no need to sleep waiting for it to prevent tearing. |
| 863 | * |
| 864 | * @var: The screen information to verify. |
| 865 | * @info: The framebuffer device. |
| 866 | */ |
| 867 | static int s3c_fb_pan_display(struct fb_var_screeninfo *var, |
| 868 | struct fb_info *info) |
| 869 | { |
| 870 | struct s3c_fb_win *win = info->par; |
| 871 | struct s3c_fb *sfb = win->parent; |
| 872 | void __iomem *buf = sfb->regs + win->index * 8; |
| 873 | unsigned int start_boff, end_boff; |
| 874 | |
Mark Brown | 5751b23 | 2011-12-27 14:16:11 +0000 | [diff] [blame] | 875 | pm_runtime_get_sync(sfb->dev); |
| 876 | |
Pawel Osciak | 067b226 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 877 | /* Offset in bytes to the start of the displayed area */ |
| 878 | start_boff = var->yoffset * info->fix.line_length; |
| 879 | /* X offset depends on the current bpp */ |
| 880 | if (info->var.bits_per_pixel >= 8) { |
| 881 | start_boff += var->xoffset * (info->var.bits_per_pixel >> 3); |
| 882 | } else { |
| 883 | switch (info->var.bits_per_pixel) { |
| 884 | case 4: |
| 885 | start_boff += var->xoffset >> 1; |
| 886 | break; |
| 887 | case 2: |
| 888 | start_boff += var->xoffset >> 2; |
| 889 | break; |
| 890 | case 1: |
| 891 | start_boff += var->xoffset >> 3; |
| 892 | break; |
| 893 | default: |
| 894 | dev_err(sfb->dev, "invalid bpp\n"); |
Mark Brown | 5751b23 | 2011-12-27 14:16:11 +0000 | [diff] [blame] | 895 | pm_runtime_put_sync(sfb->dev); |
Pawel Osciak | 067b226 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 896 | return -EINVAL; |
| 897 | } |
| 898 | } |
| 899 | /* Offset in bytes to the end of the displayed area */ |
Laurent Pinchart | d8e7a74 | 2011-05-25 11:34:52 +0200 | [diff] [blame] | 900 | end_boff = start_boff + info->var.yres * info->fix.line_length; |
Pawel Osciak | 067b226 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 901 | |
| 902 | /* Temporarily turn off per-vsync update from shadow registers until |
| 903 | * both start and end addresses are updated to prevent corruption */ |
Pawel Osciak | f5ec546 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 904 | shadow_protect_win(win, 1); |
Pawel Osciak | 067b226 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 905 | |
| 906 | writel(info->fix.smem_start + start_boff, buf + sfb->variant.buf_start); |
| 907 | writel(info->fix.smem_start + end_boff, buf + sfb->variant.buf_end); |
| 908 | |
Pawel Osciak | f5ec546 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 909 | shadow_protect_win(win, 0); |
Pawel Osciak | 067b226 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 910 | |
Mark Brown | 5751b23 | 2011-12-27 14:16:11 +0000 | [diff] [blame] | 911 | pm_runtime_put_sync(sfb->dev); |
Pawel Osciak | 067b226 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 912 | return 0; |
| 913 | } |
| 914 | |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 915 | /** |
| 916 | * s3c_fb_enable_irq() - enable framebuffer interrupts |
| 917 | * @sfb: main hardware state |
| 918 | */ |
| 919 | static void s3c_fb_enable_irq(struct s3c_fb *sfb) |
| 920 | { |
| 921 | void __iomem *regs = sfb->regs; |
| 922 | u32 irq_ctrl_reg; |
| 923 | |
| 924 | if (!test_and_set_bit(S3C_FB_VSYNC_IRQ_EN, &sfb->irq_flags)) { |
| 925 | /* IRQ disabled, enable it */ |
| 926 | irq_ctrl_reg = readl(regs + VIDINTCON0); |
| 927 | |
| 928 | irq_ctrl_reg |= VIDINTCON0_INT_ENABLE; |
| 929 | irq_ctrl_reg |= VIDINTCON0_INT_FRAME; |
| 930 | |
| 931 | irq_ctrl_reg &= ~VIDINTCON0_FRAMESEL0_MASK; |
| 932 | irq_ctrl_reg |= VIDINTCON0_FRAMESEL0_VSYNC; |
| 933 | irq_ctrl_reg &= ~VIDINTCON0_FRAMESEL1_MASK; |
| 934 | irq_ctrl_reg |= VIDINTCON0_FRAMESEL1_NONE; |
| 935 | |
| 936 | writel(irq_ctrl_reg, regs + VIDINTCON0); |
| 937 | } |
| 938 | } |
| 939 | |
| 940 | /** |
| 941 | * s3c_fb_disable_irq() - disable framebuffer interrupts |
| 942 | * @sfb: main hardware state |
| 943 | */ |
| 944 | static void s3c_fb_disable_irq(struct s3c_fb *sfb) |
| 945 | { |
| 946 | void __iomem *regs = sfb->regs; |
| 947 | u32 irq_ctrl_reg; |
| 948 | |
| 949 | if (test_and_clear_bit(S3C_FB_VSYNC_IRQ_EN, &sfb->irq_flags)) { |
| 950 | /* IRQ enabled, disable it */ |
| 951 | irq_ctrl_reg = readl(regs + VIDINTCON0); |
| 952 | |
| 953 | irq_ctrl_reg &= ~VIDINTCON0_INT_FRAME; |
| 954 | irq_ctrl_reg &= ~VIDINTCON0_INT_ENABLE; |
| 955 | |
| 956 | writel(irq_ctrl_reg, regs + VIDINTCON0); |
| 957 | } |
| 958 | } |
| 959 | |
| 960 | static irqreturn_t s3c_fb_irq(int irq, void *dev_id) |
| 961 | { |
| 962 | struct s3c_fb *sfb = dev_id; |
| 963 | void __iomem *regs = sfb->regs; |
| 964 | u32 irq_sts_reg; |
| 965 | |
Jingoo Han | b07f3bbe | 2011-04-11 07:25:37 +0000 | [diff] [blame] | 966 | spin_lock(&sfb->slock); |
| 967 | |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 968 | irq_sts_reg = readl(regs + VIDINTCON1); |
| 969 | |
| 970 | if (irq_sts_reg & VIDINTCON1_INT_FRAME) { |
| 971 | |
| 972 | /* VSYNC interrupt, accept it */ |
| 973 | writel(VIDINTCON1_INT_FRAME, regs + VIDINTCON1); |
| 974 | |
| 975 | sfb->vsync_info.count++; |
| 976 | wake_up_interruptible(&sfb->vsync_info.wait); |
| 977 | } |
| 978 | |
| 979 | /* We only support waiting for VSYNC for now, so it's safe |
| 980 | * to always disable irqs here. |
| 981 | */ |
| 982 | s3c_fb_disable_irq(sfb); |
| 983 | |
Jingoo Han | b07f3bbe | 2011-04-11 07:25:37 +0000 | [diff] [blame] | 984 | spin_unlock(&sfb->slock); |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 985 | return IRQ_HANDLED; |
| 986 | } |
| 987 | |
| 988 | /** |
| 989 | * s3c_fb_wait_for_vsync() - sleep until next VSYNC interrupt or timeout |
| 990 | * @sfb: main hardware state |
| 991 | * @crtc: head index. |
| 992 | */ |
| 993 | static int s3c_fb_wait_for_vsync(struct s3c_fb *sfb, u32 crtc) |
| 994 | { |
| 995 | unsigned long count; |
| 996 | int ret; |
| 997 | |
| 998 | if (crtc != 0) |
| 999 | return -ENODEV; |
| 1000 | |
Mark Brown | 5751b23 | 2011-12-27 14:16:11 +0000 | [diff] [blame] | 1001 | pm_runtime_get_sync(sfb->dev); |
| 1002 | |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 1003 | count = sfb->vsync_info.count; |
| 1004 | s3c_fb_enable_irq(sfb); |
| 1005 | ret = wait_event_interruptible_timeout(sfb->vsync_info.wait, |
| 1006 | count != sfb->vsync_info.count, |
| 1007 | msecs_to_jiffies(VSYNC_TIMEOUT_MSEC)); |
Mark Brown | 5751b23 | 2011-12-27 14:16:11 +0000 | [diff] [blame] | 1008 | |
| 1009 | pm_runtime_put_sync(sfb->dev); |
| 1010 | |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 1011 | if (ret == 0) |
| 1012 | return -ETIMEDOUT; |
| 1013 | |
| 1014 | return 0; |
| 1015 | } |
| 1016 | |
| 1017 | static int s3c_fb_ioctl(struct fb_info *info, unsigned int cmd, |
| 1018 | unsigned long arg) |
| 1019 | { |
| 1020 | struct s3c_fb_win *win = info->par; |
| 1021 | struct s3c_fb *sfb = win->parent; |
| 1022 | int ret; |
| 1023 | u32 crtc; |
| 1024 | |
| 1025 | switch (cmd) { |
| 1026 | case FBIO_WAITFORVSYNC: |
| 1027 | if (get_user(crtc, (u32 __user *)arg)) { |
| 1028 | ret = -EFAULT; |
| 1029 | break; |
| 1030 | } |
| 1031 | |
| 1032 | ret = s3c_fb_wait_for_vsync(sfb, crtc); |
| 1033 | break; |
| 1034 | default: |
| 1035 | ret = -ENOTTY; |
| 1036 | } |
| 1037 | |
| 1038 | return ret; |
| 1039 | } |
| 1040 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1041 | static struct fb_ops s3c_fb_ops = { |
| 1042 | .owner = THIS_MODULE, |
| 1043 | .fb_check_var = s3c_fb_check_var, |
| 1044 | .fb_set_par = s3c_fb_set_par, |
| 1045 | .fb_blank = s3c_fb_blank, |
| 1046 | .fb_setcolreg = s3c_fb_setcolreg, |
| 1047 | .fb_fillrect = cfb_fillrect, |
| 1048 | .fb_copyarea = cfb_copyarea, |
| 1049 | .fb_imageblit = cfb_imageblit, |
Pawel Osciak | 067b226 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 1050 | .fb_pan_display = s3c_fb_pan_display, |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 1051 | .fb_ioctl = s3c_fb_ioctl, |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1052 | }; |
| 1053 | |
| 1054 | /** |
Maurus Cuelenaere | 2bb567a | 2010-08-10 18:02:44 -0700 | [diff] [blame] | 1055 | * s3c_fb_missing_pixclock() - calculates pixel clock |
| 1056 | * @mode: The video mode to change. |
| 1057 | * |
| 1058 | * Calculate the pixel clock when none has been given through platform data. |
| 1059 | */ |
Mark Brown | 2293d62 | 2012-04-15 11:39:04 +0100 | [diff] [blame] | 1060 | static void s3c_fb_missing_pixclock(struct fb_videomode *mode) |
Maurus Cuelenaere | 2bb567a | 2010-08-10 18:02:44 -0700 | [diff] [blame] | 1061 | { |
| 1062 | u64 pixclk = 1000000000000ULL; |
| 1063 | u32 div; |
| 1064 | |
| 1065 | div = mode->left_margin + mode->hsync_len + mode->right_margin + |
| 1066 | mode->xres; |
| 1067 | div *= mode->upper_margin + mode->vsync_len + mode->lower_margin + |
| 1068 | mode->yres; |
| 1069 | div *= mode->refresh ? : 60; |
| 1070 | |
| 1071 | do_div(pixclk, div); |
| 1072 | |
| 1073 | mode->pixclock = pixclk; |
| 1074 | } |
| 1075 | |
| 1076 | /** |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1077 | * s3c_fb_alloc_memory() - allocate display memory for framebuffer window |
| 1078 | * @sfb: The base resources for the hardware. |
| 1079 | * @win: The window to initialise memory for. |
| 1080 | * |
| 1081 | * Allocate memory for the given framebuffer. |
| 1082 | */ |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 1083 | static int s3c_fb_alloc_memory(struct s3c_fb *sfb, struct s3c_fb_win *win) |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1084 | { |
| 1085 | struct s3c_fb_pd_win *windata = win->windata; |
| 1086 | unsigned int real_size, virt_size, size; |
| 1087 | struct fb_info *fbi = win->fbinfo; |
| 1088 | dma_addr_t map_dma; |
| 1089 | |
| 1090 | dev_dbg(sfb->dev, "allocating memory for display\n"); |
| 1091 | |
Thomas Abraham | a4196fe | 2012-03-24 21:58:45 +0530 | [diff] [blame] | 1092 | real_size = windata->xres * windata->yres; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1093 | virt_size = windata->virtual_x * windata->virtual_y; |
| 1094 | |
| 1095 | dev_dbg(sfb->dev, "real_size=%u (%u.%u), virt_size=%u (%u.%u)\n", |
Thomas Abraham | a4196fe | 2012-03-24 21:58:45 +0530 | [diff] [blame] | 1096 | real_size, windata->xres, windata->yres, |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1097 | virt_size, windata->virtual_x, windata->virtual_y); |
| 1098 | |
| 1099 | size = (real_size > virt_size) ? real_size : virt_size; |
| 1100 | size *= (windata->max_bpp > 16) ? 32 : windata->max_bpp; |
| 1101 | size /= 8; |
| 1102 | |
| 1103 | fbi->fix.smem_len = size; |
| 1104 | size = PAGE_ALIGN(size); |
| 1105 | |
| 1106 | dev_dbg(sfb->dev, "want %u bytes for window\n", size); |
| 1107 | |
| 1108 | fbi->screen_base = dma_alloc_writecombine(sfb->dev, size, |
| 1109 | &map_dma, GFP_KERNEL); |
| 1110 | if (!fbi->screen_base) |
| 1111 | return -ENOMEM; |
| 1112 | |
| 1113 | dev_dbg(sfb->dev, "mapped %x to %p\n", |
| 1114 | (unsigned int)map_dma, fbi->screen_base); |
| 1115 | |
| 1116 | memset(fbi->screen_base, 0x0, size); |
| 1117 | fbi->fix.smem_start = map_dma; |
| 1118 | |
| 1119 | return 0; |
| 1120 | } |
| 1121 | |
| 1122 | /** |
| 1123 | * s3c_fb_free_memory() - free the display memory for the given window |
| 1124 | * @sfb: The base resources for the hardware. |
| 1125 | * @win: The window to free the display memory for. |
| 1126 | * |
| 1127 | * Free the display memory allocated by s3c_fb_alloc_memory(). |
| 1128 | */ |
| 1129 | static void s3c_fb_free_memory(struct s3c_fb *sfb, struct s3c_fb_win *win) |
| 1130 | { |
| 1131 | struct fb_info *fbi = win->fbinfo; |
| 1132 | |
Pawel Osciak | cd7d7e0 | 2010-08-10 18:02:35 -0700 | [diff] [blame] | 1133 | if (fbi->screen_base) |
| 1134 | dma_free_writecombine(sfb->dev, PAGE_ALIGN(fbi->fix.smem_len), |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1135 | fbi->screen_base, fbi->fix.smem_start); |
| 1136 | } |
| 1137 | |
| 1138 | /** |
| 1139 | * s3c_fb_release_win() - release resources for a framebuffer window. |
| 1140 | * @win: The window to cleanup the resources for. |
| 1141 | * |
| 1142 | * Release the resources that where claimed for the hardware window, |
| 1143 | * such as the framebuffer instance and any memory claimed for it. |
| 1144 | */ |
| 1145 | static void s3c_fb_release_win(struct s3c_fb *sfb, struct s3c_fb_win *win) |
| 1146 | { |
Pawel Osciak | 04ab9ef | 2010-08-10 18:02:43 -0700 | [diff] [blame] | 1147 | u32 data; |
| 1148 | |
Krzysztof Helt | ddc518d | 2009-06-16 15:34:33 -0700 | [diff] [blame] | 1149 | if (win->fbinfo) { |
Pawel Osciak | 04ab9ef | 2010-08-10 18:02:43 -0700 | [diff] [blame] | 1150 | if (sfb->variant.has_shadowcon) { |
| 1151 | data = readl(sfb->regs + SHADOWCON); |
| 1152 | data &= ~SHADOWCON_CHx_ENABLE(win->index); |
| 1153 | data &= ~SHADOWCON_CHx_LOCAL_ENABLE(win->index); |
| 1154 | writel(data, sfb->regs + SHADOWCON); |
| 1155 | } |
Krzysztof Helt | ddc518d | 2009-06-16 15:34:33 -0700 | [diff] [blame] | 1156 | unregister_framebuffer(win->fbinfo); |
Pawel Osciak | cd7d7e0 | 2010-08-10 18:02:35 -0700 | [diff] [blame] | 1157 | if (win->fbinfo->cmap.len) |
| 1158 | fb_dealloc_cmap(&win->fbinfo->cmap); |
Krzysztof Helt | ddc518d | 2009-06-16 15:34:33 -0700 | [diff] [blame] | 1159 | s3c_fb_free_memory(sfb, win); |
| 1160 | framebuffer_release(win->fbinfo); |
| 1161 | } |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1162 | } |
| 1163 | |
| 1164 | /** |
| 1165 | * s3c_fb_probe_win() - register an hardware window |
| 1166 | * @sfb: The base resources for the hardware |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1167 | * @variant: The variant information for this window. |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1168 | * @res: Pointer to where to place the resultant window. |
| 1169 | * |
| 1170 | * Allocate and do the basic initialisation for one of the hardware's graphics |
| 1171 | * windows. |
| 1172 | */ |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 1173 | static int s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no, |
| 1174 | struct s3c_fb_win_variant *variant, |
| 1175 | struct s3c_fb_win **res) |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1176 | { |
| 1177 | struct fb_var_screeninfo *var; |
Thomas Abraham | a4196fe | 2012-03-24 21:58:45 +0530 | [diff] [blame] | 1178 | struct fb_videomode initmode; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1179 | struct s3c_fb_pd_win *windata; |
| 1180 | struct s3c_fb_win *win; |
| 1181 | struct fb_info *fbinfo; |
| 1182 | int palette_size; |
| 1183 | int ret; |
| 1184 | |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1185 | dev_dbg(sfb->dev, "probing window %d, variant %p\n", win_no, variant); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1186 | |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 1187 | init_waitqueue_head(&sfb->vsync_info.wait); |
| 1188 | |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1189 | palette_size = variant->palette_sz * 4; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1190 | |
| 1191 | fbinfo = framebuffer_alloc(sizeof(struct s3c_fb_win) + |
| 1192 | palette_size * sizeof(u32), sfb->dev); |
| 1193 | if (!fbinfo) { |
| 1194 | dev_err(sfb->dev, "failed to allocate framebuffer\n"); |
| 1195 | return -ENOENT; |
| 1196 | } |
| 1197 | |
| 1198 | windata = sfb->pdata->win[win_no]; |
Thomas Abraham | a4196fe | 2012-03-24 21:58:45 +0530 | [diff] [blame] | 1199 | initmode = *sfb->pdata->vtiming; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1200 | |
| 1201 | WARN_ON(windata->max_bpp == 0); |
Thomas Abraham | a4196fe | 2012-03-24 21:58:45 +0530 | [diff] [blame] | 1202 | WARN_ON(windata->xres == 0); |
| 1203 | WARN_ON(windata->yres == 0); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1204 | |
| 1205 | win = fbinfo->par; |
Pawel Osciak | cd7d7e0 | 2010-08-10 18:02:35 -0700 | [diff] [blame] | 1206 | *res = win; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1207 | var = &fbinfo->var; |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1208 | win->variant = *variant; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1209 | win->fbinfo = fbinfo; |
| 1210 | win->parent = sfb; |
| 1211 | win->windata = windata; |
| 1212 | win->index = win_no; |
| 1213 | win->palette_buffer = (u32 *)(win + 1); |
| 1214 | |
| 1215 | ret = s3c_fb_alloc_memory(sfb, win); |
| 1216 | if (ret) { |
| 1217 | dev_err(sfb->dev, "failed to allocate display memory\n"); |
Krzysztof Helt | ddc518d | 2009-06-16 15:34:33 -0700 | [diff] [blame] | 1218 | return ret; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1219 | } |
| 1220 | |
| 1221 | /* setup the r/b/g positions for the window's palette */ |
Ben Dooks | bc2da1b | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1222 | if (win->variant.palette_16bpp) { |
| 1223 | /* Set RGB 5:6:5 as default */ |
| 1224 | win->palette.r.offset = 11; |
| 1225 | win->palette.r.length = 5; |
| 1226 | win->palette.g.offset = 5; |
| 1227 | win->palette.g.length = 6; |
| 1228 | win->palette.b.offset = 0; |
| 1229 | win->palette.b.length = 5; |
| 1230 | |
| 1231 | } else { |
| 1232 | /* Set 8bpp or 8bpp and 1bit alpha */ |
| 1233 | win->palette.r.offset = 16; |
| 1234 | win->palette.r.length = 8; |
| 1235 | win->palette.g.offset = 8; |
| 1236 | win->palette.g.length = 8; |
| 1237 | win->palette.b.offset = 0; |
| 1238 | win->palette.b.length = 8; |
| 1239 | } |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1240 | |
| 1241 | /* setup the initial video mode from the window */ |
Thomas Abraham | a4196fe | 2012-03-24 21:58:45 +0530 | [diff] [blame] | 1242 | initmode.xres = windata->xres; |
| 1243 | initmode.yres = windata->yres; |
| 1244 | fb_videomode_to_var(&fbinfo->var, &initmode); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1245 | |
| 1246 | fbinfo->fix.type = FB_TYPE_PACKED_PIXELS; |
| 1247 | fbinfo->fix.accel = FB_ACCEL_NONE; |
| 1248 | fbinfo->var.activate = FB_ACTIVATE_NOW; |
| 1249 | fbinfo->var.vmode = FB_VMODE_NONINTERLACED; |
| 1250 | fbinfo->var.bits_per_pixel = windata->default_bpp; |
| 1251 | fbinfo->fbops = &s3c_fb_ops; |
| 1252 | fbinfo->flags = FBINFO_FLAG_DEFAULT; |
| 1253 | fbinfo->pseudo_palette = &win->pseudo_palette; |
| 1254 | |
| 1255 | /* prepare to actually start the framebuffer */ |
| 1256 | |
| 1257 | ret = s3c_fb_check_var(&fbinfo->var, fbinfo); |
| 1258 | if (ret < 0) { |
| 1259 | dev_err(sfb->dev, "check_var failed on initial video params\n"); |
Krzysztof Helt | ddc518d | 2009-06-16 15:34:33 -0700 | [diff] [blame] | 1260 | return ret; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1261 | } |
| 1262 | |
| 1263 | /* create initial colour map */ |
| 1264 | |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1265 | ret = fb_alloc_cmap(&fbinfo->cmap, win->variant.palette_sz, 1); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1266 | if (ret == 0) |
| 1267 | fb_set_cmap(&fbinfo->cmap, fbinfo); |
| 1268 | else |
| 1269 | dev_err(sfb->dev, "failed to allocate fb cmap\n"); |
| 1270 | |
| 1271 | s3c_fb_set_par(fbinfo); |
| 1272 | |
| 1273 | dev_dbg(sfb->dev, "about to register framebuffer\n"); |
| 1274 | |
| 1275 | /* run the check_var and set_par on our configuration. */ |
| 1276 | |
| 1277 | ret = register_framebuffer(fbinfo); |
| 1278 | if (ret < 0) { |
| 1279 | dev_err(sfb->dev, "failed to register framebuffer\n"); |
Krzysztof Helt | ddc518d | 2009-06-16 15:34:33 -0700 | [diff] [blame] | 1280 | return ret; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1281 | } |
| 1282 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1283 | dev_info(sfb->dev, "window %d: fb %s\n", win_no, fbinfo->fix.id); |
| 1284 | |
| 1285 | return 0; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1286 | } |
| 1287 | |
| 1288 | /** |
Thomas Abraham | a4196fe | 2012-03-24 21:58:45 +0530 | [diff] [blame] | 1289 | * s3c_fb_set_rgb_timing() - set video timing for rgb interface. |
| 1290 | * @sfb: The base resources for the hardware. |
| 1291 | * |
| 1292 | * Set horizontal and vertical lcd rgb interface timing. |
| 1293 | */ |
| 1294 | static void s3c_fb_set_rgb_timing(struct s3c_fb *sfb) |
| 1295 | { |
| 1296 | struct fb_videomode *vmode = sfb->pdata->vtiming; |
| 1297 | void __iomem *regs = sfb->regs; |
| 1298 | int clkdiv; |
| 1299 | u32 data; |
| 1300 | |
| 1301 | if (!vmode->pixclock) |
| 1302 | s3c_fb_missing_pixclock(vmode); |
| 1303 | |
| 1304 | clkdiv = s3c_fb_calc_pixclk(sfb, vmode->pixclock); |
| 1305 | |
| 1306 | data = sfb->pdata->vidcon0; |
| 1307 | data &= ~(VIDCON0_CLKVAL_F_MASK | VIDCON0_CLKDIR); |
| 1308 | |
| 1309 | if (clkdiv > 1) |
| 1310 | data |= VIDCON0_CLKVAL_F(clkdiv-1) | VIDCON0_CLKDIR; |
| 1311 | else |
| 1312 | data &= ~VIDCON0_CLKDIR; /* 1:1 clock */ |
| 1313 | |
| 1314 | if (sfb->variant.is_2443) |
| 1315 | data |= (1 << 5); |
| 1316 | writel(data, regs + VIDCON0); |
| 1317 | |
| 1318 | data = VIDTCON0_VBPD(vmode->upper_margin - 1) | |
| 1319 | VIDTCON0_VFPD(vmode->lower_margin - 1) | |
| 1320 | VIDTCON0_VSPW(vmode->vsync_len - 1); |
| 1321 | writel(data, regs + sfb->variant.vidtcon); |
| 1322 | |
| 1323 | data = VIDTCON1_HBPD(vmode->left_margin - 1) | |
| 1324 | VIDTCON1_HFPD(vmode->right_margin - 1) | |
| 1325 | VIDTCON1_HSPW(vmode->hsync_len - 1); |
| 1326 | writel(data, regs + sfb->variant.vidtcon + 4); |
| 1327 | |
| 1328 | data = VIDTCON2_LINEVAL(vmode->yres - 1) | |
| 1329 | VIDTCON2_HOZVAL(vmode->xres - 1) | |
| 1330 | VIDTCON2_LINEVAL_E(vmode->yres - 1) | |
| 1331 | VIDTCON2_HOZVAL_E(vmode->xres - 1); |
| 1332 | writel(data, regs + sfb->variant.vidtcon + 8); |
| 1333 | } |
| 1334 | |
| 1335 | /** |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1336 | * s3c_fb_clear_win() - clear hardware window registers. |
| 1337 | * @sfb: The base resources for the hardware. |
| 1338 | * @win: The window to process. |
| 1339 | * |
| 1340 | * Reset the specific window registers to a known state. |
| 1341 | */ |
| 1342 | static void s3c_fb_clear_win(struct s3c_fb *sfb, int win) |
| 1343 | { |
| 1344 | void __iomem *regs = sfb->regs; |
Pawel Osciak | a8bdabc | 2010-08-10 18:02:41 -0700 | [diff] [blame] | 1345 | u32 reg; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1346 | |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1347 | writel(0, regs + sfb->variant.wincon + (win * 4)); |
| 1348 | writel(0, regs + VIDOSD_A(win, sfb->variant)); |
| 1349 | writel(0, regs + VIDOSD_B(win, sfb->variant)); |
| 1350 | writel(0, regs + VIDOSD_C(win, sfb->variant)); |
Jingoo Han | ecd57ae | 2012-06-11 11:26:41 +0900 | [diff] [blame] | 1351 | |
| 1352 | if (sfb->variant.has_shadowcon) { |
| 1353 | reg = readl(sfb->regs + SHADOWCON); |
| 1354 | reg &= ~(SHADOWCON_WINx_PROTECT(win) | |
| 1355 | SHADOWCON_CHx_ENABLE(win) | |
| 1356 | SHADOWCON_CHx_LOCAL_ENABLE(win)); |
| 1357 | writel(reg, sfb->regs + SHADOWCON); |
| 1358 | } |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1359 | } |
| 1360 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 1361 | static int s3c_fb_probe(struct platform_device *pdev) |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1362 | { |
Jingoo Han | b73a21fc | 2011-04-01 07:17:27 +0000 | [diff] [blame] | 1363 | const struct platform_device_id *platid; |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1364 | struct s3c_fb_driverdata *fbdrv; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1365 | struct device *dev = &pdev->dev; |
| 1366 | struct s3c_fb_platdata *pd; |
| 1367 | struct s3c_fb *sfb; |
| 1368 | struct resource *res; |
| 1369 | int win; |
| 1370 | int ret = 0; |
Jingoo Han | d8b97db | 2012-01-27 14:47:55 +0900 | [diff] [blame] | 1371 | u32 reg; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1372 | |
Jingoo Han | b73a21fc | 2011-04-01 07:17:27 +0000 | [diff] [blame] | 1373 | platid = platform_get_device_id(pdev); |
| 1374 | fbdrv = (struct s3c_fb_driverdata *)platid->driver_data; |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1375 | |
| 1376 | if (fbdrv->variant.nr_windows > S3C_FB_MAX_WIN) { |
| 1377 | dev_err(dev, "too many windows, cannot attach\n"); |
| 1378 | return -EINVAL; |
| 1379 | } |
| 1380 | |
Jingoo Han | 8b4c7e5 | 2013-09-17 14:10:37 +0900 | [diff] [blame] | 1381 | pd = dev_get_platdata(&pdev->dev); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1382 | if (!pd) { |
| 1383 | dev_err(dev, "no platform data specified\n"); |
| 1384 | return -EINVAL; |
| 1385 | } |
| 1386 | |
Mark Brown | 857a8df | 2012-01-21 13:11:49 +0000 | [diff] [blame] | 1387 | sfb = devm_kzalloc(dev, sizeof(struct s3c_fb), GFP_KERNEL); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1388 | if (!sfb) { |
| 1389 | dev_err(dev, "no memory for framebuffers\n"); |
| 1390 | return -ENOMEM; |
| 1391 | } |
| 1392 | |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1393 | dev_dbg(dev, "allocate new framebuffer %p\n", sfb); |
| 1394 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1395 | sfb->dev = dev; |
| 1396 | sfb->pdata = pd; |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1397 | sfb->variant = fbdrv->variant; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1398 | |
Jingoo Han | b07f3bbe | 2011-04-11 07:25:37 +0000 | [diff] [blame] | 1399 | spin_lock_init(&sfb->slock); |
| 1400 | |
Jingoo Han | 7762134 | 2012-08-02 15:59:05 +0900 | [diff] [blame] | 1401 | sfb->bus_clk = devm_clk_get(dev, "lcd"); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1402 | if (IS_ERR(sfb->bus_clk)) { |
| 1403 | dev_err(dev, "failed to get bus clock\n"); |
Jingoo Han | 7762134 | 2012-08-02 15:59:05 +0900 | [diff] [blame] | 1404 | return PTR_ERR(sfb->bus_clk); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1405 | } |
| 1406 | |
Thomas Abraham | 5ce2497 | 2012-10-03 08:57:40 +0900 | [diff] [blame] | 1407 | clk_prepare_enable(sfb->bus_clk); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1408 | |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1409 | if (!sfb->variant.has_clksel) { |
Jingoo Han | 7762134 | 2012-08-02 15:59:05 +0900 | [diff] [blame] | 1410 | sfb->lcd_clk = devm_clk_get(dev, "sclk_fimd"); |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1411 | if (IS_ERR(sfb->lcd_clk)) { |
| 1412 | dev_err(dev, "failed to get lcd clock\n"); |
| 1413 | ret = PTR_ERR(sfb->lcd_clk); |
| 1414 | goto err_bus_clk; |
| 1415 | } |
| 1416 | |
Thomas Abraham | 5ce2497 | 2012-10-03 08:57:40 +0900 | [diff] [blame] | 1417 | clk_prepare_enable(sfb->lcd_clk); |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1418 | } |
| 1419 | |
Jingoo Han | 4959212 | 2010-12-17 16:45:46 +0900 | [diff] [blame] | 1420 | pm_runtime_enable(sfb->dev); |
| 1421 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1422 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
Thierry Reding | bc3bad1 | 2013-01-21 11:09:23 +0100 | [diff] [blame] | 1423 | sfb->regs = devm_ioremap_resource(dev, res); |
| 1424 | if (IS_ERR(sfb->regs)) { |
| 1425 | ret = PTR_ERR(sfb->regs); |
Mark Brown | 857a8df | 2012-01-21 13:11:49 +0000 | [diff] [blame] | 1426 | goto err_lcd_clk; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1427 | } |
| 1428 | |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 1429 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 1430 | if (!res) { |
| 1431 | dev_err(dev, "failed to acquire irq resource\n"); |
| 1432 | ret = -ENOENT; |
Mark Brown | 857a8df | 2012-01-21 13:11:49 +0000 | [diff] [blame] | 1433 | goto err_lcd_clk; |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 1434 | } |
| 1435 | sfb->irq_no = res->start; |
Jingoo Han | 327e276 | 2012-02-20 19:40:19 +0900 | [diff] [blame] | 1436 | ret = devm_request_irq(dev, sfb->irq_no, s3c_fb_irq, |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 1437 | 0, "s3c_fb", sfb); |
| 1438 | if (ret) { |
| 1439 | dev_err(dev, "irq request failed\n"); |
Mark Brown | 857a8df | 2012-01-21 13:11:49 +0000 | [diff] [blame] | 1440 | goto err_lcd_clk; |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 1441 | } |
| 1442 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1443 | dev_dbg(dev, "got resources (regs %p), probing windows\n", sfb->regs); |
| 1444 | |
Jingoo Han | 4959212 | 2010-12-17 16:45:46 +0900 | [diff] [blame] | 1445 | platform_set_drvdata(pdev, sfb); |
| 1446 | pm_runtime_get_sync(sfb->dev); |
| 1447 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1448 | /* setup gpio and output polarity controls */ |
| 1449 | |
| 1450 | pd->setup_gpio(); |
| 1451 | |
| 1452 | writel(pd->vidcon1, sfb->regs + VIDCON1); |
| 1453 | |
Jingoo Han | d8b97db | 2012-01-27 14:47:55 +0900 | [diff] [blame] | 1454 | /* set video clock running at under-run */ |
| 1455 | if (sfb->variant.has_fixvclk) { |
| 1456 | reg = readl(sfb->regs + VIDCON1); |
| 1457 | reg &= ~VIDCON1_VCLK_MASK; |
| 1458 | reg |= VIDCON1_VCLK_RUN; |
| 1459 | writel(reg, sfb->regs + VIDCON1); |
| 1460 | } |
| 1461 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1462 | /* zero all windows before we do anything */ |
| 1463 | |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1464 | for (win = 0; win < fbdrv->variant.nr_windows; win++) |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1465 | s3c_fb_clear_win(sfb, win); |
| 1466 | |
Ben Dooks | 9494703 | 2010-08-10 18:02:32 -0700 | [diff] [blame] | 1467 | /* initialise colour key controls */ |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1468 | for (win = 0; win < (fbdrv->variant.nr_windows - 1); win++) { |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1469 | void __iomem *regs = sfb->regs + sfb->variant.keycon; |
| 1470 | |
| 1471 | regs += (win * 8); |
| 1472 | writel(0xffffff, regs + WKEYCON0); |
| 1473 | writel(0xffffff, regs + WKEYCON1); |
Ben Dooks | 9494703 | 2010-08-10 18:02:32 -0700 | [diff] [blame] | 1474 | } |
| 1475 | |
Thomas Abraham | a4196fe | 2012-03-24 21:58:45 +0530 | [diff] [blame] | 1476 | s3c_fb_set_rgb_timing(sfb); |
| 1477 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1478 | /* we have the register setup, start allocating framebuffers */ |
| 1479 | |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1480 | for (win = 0; win < fbdrv->variant.nr_windows; win++) { |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1481 | if (!pd->win[win]) |
| 1482 | continue; |
| 1483 | |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1484 | ret = s3c_fb_probe_win(sfb, win, fbdrv->win[win], |
| 1485 | &sfb->windows[win]); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1486 | if (ret < 0) { |
| 1487 | dev_err(dev, "failed to create window %d\n", win); |
| 1488 | for (; win >= 0; win--) |
| 1489 | s3c_fb_release_win(sfb, sfb->windows[win]); |
Mark Brown | 3500b0b | 2011-12-27 14:16:09 +0000 | [diff] [blame] | 1490 | goto err_pm_runtime; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1491 | } |
| 1492 | } |
| 1493 | |
| 1494 | platform_set_drvdata(pdev, sfb); |
Mark Brown | fe05f8b | 2011-12-27 14:16:07 +0000 | [diff] [blame] | 1495 | pm_runtime_put_sync(sfb->dev); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1496 | |
| 1497 | return 0; |
| 1498 | |
Mark Brown | 3500b0b | 2011-12-27 14:16:09 +0000 | [diff] [blame] | 1499 | err_pm_runtime: |
| 1500 | pm_runtime_put_sync(sfb->dev); |
Pawel Osciak | efdc846 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 1501 | |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1502 | err_lcd_clk: |
Mark Brown | 3500b0b | 2011-12-27 14:16:09 +0000 | [diff] [blame] | 1503 | pm_runtime_disable(sfb->dev); |
| 1504 | |
Jingoo Han | 7762134 | 2012-08-02 15:59:05 +0900 | [diff] [blame] | 1505 | if (!sfb->variant.has_clksel) |
Thomas Abraham | 5ce2497 | 2012-10-03 08:57:40 +0900 | [diff] [blame] | 1506 | clk_disable_unprepare(sfb->lcd_clk); |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1507 | |
| 1508 | err_bus_clk: |
Thomas Abraham | 5ce2497 | 2012-10-03 08:57:40 +0900 | [diff] [blame] | 1509 | clk_disable_unprepare(sfb->bus_clk); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1510 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1511 | return ret; |
| 1512 | } |
| 1513 | |
| 1514 | /** |
| 1515 | * s3c_fb_remove() - Cleanup on module finalisation |
| 1516 | * @pdev: The platform device we are bound to. |
| 1517 | * |
| 1518 | * Shutdown and then release all the resources that the driver allocated |
| 1519 | * on initialisation. |
| 1520 | */ |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 1521 | static int s3c_fb_remove(struct platform_device *pdev) |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1522 | { |
| 1523 | struct s3c_fb *sfb = platform_get_drvdata(pdev); |
| 1524 | int win; |
| 1525 | |
Mark Brown | fe05f8b | 2011-12-27 14:16:07 +0000 | [diff] [blame] | 1526 | pm_runtime_get_sync(sfb->dev); |
| 1527 | |
Pawel Osciak | c42b110 | 2009-07-29 15:02:10 -0700 | [diff] [blame] | 1528 | for (win = 0; win < S3C_FB_MAX_WIN; win++) |
Marek Szyprowski | 17663e5 | 2009-05-28 14:34:35 -0700 | [diff] [blame] | 1529 | if (sfb->windows[win]) |
| 1530 | s3c_fb_release_win(sfb, sfb->windows[win]); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1531 | |
Jingoo Han | 7762134 | 2012-08-02 15:59:05 +0900 | [diff] [blame] | 1532 | if (!sfb->variant.has_clksel) |
Thomas Abraham | 5ce2497 | 2012-10-03 08:57:40 +0900 | [diff] [blame] | 1533 | clk_disable_unprepare(sfb->lcd_clk); |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1534 | |
Thomas Abraham | 5ce2497 | 2012-10-03 08:57:40 +0900 | [diff] [blame] | 1535 | clk_disable_unprepare(sfb->bus_clk); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1536 | |
Jingoo Han | 4959212 | 2010-12-17 16:45:46 +0900 | [diff] [blame] | 1537 | pm_runtime_put_sync(sfb->dev); |
| 1538 | pm_runtime_disable(sfb->dev); |
| 1539 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1540 | return 0; |
| 1541 | } |
| 1542 | |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 1543 | #ifdef CONFIG_PM_SLEEP |
Jingoo Han | 4959212 | 2010-12-17 16:45:46 +0900 | [diff] [blame] | 1544 | static int s3c_fb_suspend(struct device *dev) |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1545 | { |
Jingoo Han | bab8b56 | 2012-10-16 13:21:44 +0900 | [diff] [blame] | 1546 | struct s3c_fb *sfb = dev_get_drvdata(dev); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1547 | struct s3c_fb_win *win; |
| 1548 | int win_no; |
| 1549 | |
Jingoo Han | 4e0dd49 | 2012-04-04 15:57:44 +0900 | [diff] [blame] | 1550 | pm_runtime_get_sync(sfb->dev); |
| 1551 | |
Pawel Osciak | c42b110 | 2009-07-29 15:02:10 -0700 | [diff] [blame] | 1552 | for (win_no = S3C_FB_MAX_WIN - 1; win_no >= 0; win_no--) { |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1553 | win = sfb->windows[win_no]; |
| 1554 | if (!win) |
| 1555 | continue; |
| 1556 | |
| 1557 | /* use the blank function to push into power-down */ |
| 1558 | s3c_fb_blank(FB_BLANK_POWERDOWN, win->fbinfo); |
| 1559 | } |
| 1560 | |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1561 | if (!sfb->variant.has_clksel) |
Thomas Abraham | 5ce2497 | 2012-10-03 08:57:40 +0900 | [diff] [blame] | 1562 | clk_disable_unprepare(sfb->lcd_clk); |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1563 | |
Thomas Abraham | 5ce2497 | 2012-10-03 08:57:40 +0900 | [diff] [blame] | 1564 | clk_disable_unprepare(sfb->bus_clk); |
Jingoo Han | 4e0dd49 | 2012-04-04 15:57:44 +0900 | [diff] [blame] | 1565 | |
| 1566 | pm_runtime_put_sync(sfb->dev); |
| 1567 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1568 | return 0; |
| 1569 | } |
| 1570 | |
Jingoo Han | 4959212 | 2010-12-17 16:45:46 +0900 | [diff] [blame] | 1571 | static int s3c_fb_resume(struct device *dev) |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1572 | { |
Jingoo Han | bab8b56 | 2012-10-16 13:21:44 +0900 | [diff] [blame] | 1573 | struct s3c_fb *sfb = dev_get_drvdata(dev); |
Marek Szyprowski | 17663e5 | 2009-05-28 14:34:35 -0700 | [diff] [blame] | 1574 | struct s3c_fb_platdata *pd = sfb->pdata; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1575 | struct s3c_fb_win *win; |
| 1576 | int win_no; |
Jingoo Han | d8b97db | 2012-01-27 14:47:55 +0900 | [diff] [blame] | 1577 | u32 reg; |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1578 | |
Jingoo Han | 4e0dd49 | 2012-04-04 15:57:44 +0900 | [diff] [blame] | 1579 | pm_runtime_get_sync(sfb->dev); |
| 1580 | |
Thomas Abraham | 5ce2497 | 2012-10-03 08:57:40 +0900 | [diff] [blame] | 1581 | clk_prepare_enable(sfb->bus_clk); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1582 | |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1583 | if (!sfb->variant.has_clksel) |
Thomas Abraham | 5ce2497 | 2012-10-03 08:57:40 +0900 | [diff] [blame] | 1584 | clk_prepare_enable(sfb->lcd_clk); |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1585 | |
Jingoo Han | 6aa9681 | 2011-05-24 08:55:31 +0000 | [diff] [blame] | 1586 | /* setup gpio and output polarity controls */ |
| 1587 | pd->setup_gpio(); |
Marek Szyprowski | 17663e5 | 2009-05-28 14:34:35 -0700 | [diff] [blame] | 1588 | writel(pd->vidcon1, sfb->regs + VIDCON1); |
| 1589 | |
Jingoo Han | d8b97db | 2012-01-27 14:47:55 +0900 | [diff] [blame] | 1590 | /* set video clock running at under-run */ |
| 1591 | if (sfb->variant.has_fixvclk) { |
| 1592 | reg = readl(sfb->regs + VIDCON1); |
| 1593 | reg &= ~VIDCON1_VCLK_MASK; |
| 1594 | reg |= VIDCON1_VCLK_RUN; |
| 1595 | writel(reg, sfb->regs + VIDCON1); |
| 1596 | } |
| 1597 | |
Marek Szyprowski | 17663e5 | 2009-05-28 14:34:35 -0700 | [diff] [blame] | 1598 | /* zero all windows before we do anything */ |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1599 | for (win_no = 0; win_no < sfb->variant.nr_windows; win_no++) |
Marek Szyprowski | 17663e5 | 2009-05-28 14:34:35 -0700 | [diff] [blame] | 1600 | s3c_fb_clear_win(sfb, win_no); |
| 1601 | |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1602 | for (win_no = 0; win_no < sfb->variant.nr_windows - 1; win_no++) { |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1603 | void __iomem *regs = sfb->regs + sfb->variant.keycon; |
Jingoo Han | ff8c910 | 2011-12-08 18:08:00 +0900 | [diff] [blame] | 1604 | win = sfb->windows[win_no]; |
| 1605 | if (!win) |
| 1606 | continue; |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1607 | |
Jingoo Han | ff8c910 | 2011-12-08 18:08:00 +0900 | [diff] [blame] | 1608 | shadow_protect_win(win, 1); |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1609 | regs += (win_no * 8); |
| 1610 | writel(0xffffff, regs + WKEYCON0); |
| 1611 | writel(0xffffff, regs + WKEYCON1); |
Jingoo Han | ff8c910 | 2011-12-08 18:08:00 +0900 | [diff] [blame] | 1612 | shadow_protect_win(win, 0); |
Ben Dooks | 9494703 | 2010-08-10 18:02:32 -0700 | [diff] [blame] | 1613 | } |
| 1614 | |
Thomas Abraham | a4196fe | 2012-03-24 21:58:45 +0530 | [diff] [blame] | 1615 | s3c_fb_set_rgb_timing(sfb); |
| 1616 | |
Marek Szyprowski | 17663e5 | 2009-05-28 14:34:35 -0700 | [diff] [blame] | 1617 | /* restore framebuffers */ |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1618 | for (win_no = 0; win_no < S3C_FB_MAX_WIN; win_no++) { |
| 1619 | win = sfb->windows[win_no]; |
| 1620 | if (!win) |
| 1621 | continue; |
| 1622 | |
Jingoo Han | bab8b56 | 2012-10-16 13:21:44 +0900 | [diff] [blame] | 1623 | dev_dbg(dev, "resuming window %d\n", win_no); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1624 | s3c_fb_set_par(win->fbinfo); |
| 1625 | } |
| 1626 | |
Jingoo Han | 4e0dd49 | 2012-04-04 15:57:44 +0900 | [diff] [blame] | 1627 | pm_runtime_put_sync(sfb->dev); |
| 1628 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1629 | return 0; |
| 1630 | } |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1631 | #endif |
| 1632 | |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 1633 | #ifdef CONFIG_PM_RUNTIME |
| 1634 | static int s3c_fb_runtime_suspend(struct device *dev) |
| 1635 | { |
Jingoo Han | bab8b56 | 2012-10-16 13:21:44 +0900 | [diff] [blame] | 1636 | struct s3c_fb *sfb = dev_get_drvdata(dev); |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 1637 | |
| 1638 | if (!sfb->variant.has_clksel) |
Thomas Abraham | 5ce2497 | 2012-10-03 08:57:40 +0900 | [diff] [blame] | 1639 | clk_disable_unprepare(sfb->lcd_clk); |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 1640 | |
Thomas Abraham | 5ce2497 | 2012-10-03 08:57:40 +0900 | [diff] [blame] | 1641 | clk_disable_unprepare(sfb->bus_clk); |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 1642 | |
| 1643 | return 0; |
| 1644 | } |
| 1645 | |
| 1646 | static int s3c_fb_runtime_resume(struct device *dev) |
| 1647 | { |
Jingoo Han | bab8b56 | 2012-10-16 13:21:44 +0900 | [diff] [blame] | 1648 | struct s3c_fb *sfb = dev_get_drvdata(dev); |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 1649 | struct s3c_fb_platdata *pd = sfb->pdata; |
| 1650 | |
Thomas Abraham | 5ce2497 | 2012-10-03 08:57:40 +0900 | [diff] [blame] | 1651 | clk_prepare_enable(sfb->bus_clk); |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 1652 | |
| 1653 | if (!sfb->variant.has_clksel) |
Thomas Abraham | 5ce2497 | 2012-10-03 08:57:40 +0900 | [diff] [blame] | 1654 | clk_prepare_enable(sfb->lcd_clk); |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 1655 | |
| 1656 | /* setup gpio and output polarity controls */ |
| 1657 | pd->setup_gpio(); |
| 1658 | writel(pd->vidcon1, sfb->regs + VIDCON1); |
| 1659 | |
| 1660 | return 0; |
| 1661 | } |
| 1662 | #endif |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1663 | |
| 1664 | #define VALID_BPP124 (VALID_BPP(1) | VALID_BPP(2) | VALID_BPP(4)) |
| 1665 | #define VALID_BPP1248 (VALID_BPP124 | VALID_BPP(8)) |
| 1666 | |
Marek Szyprowski | 8cfdcb2 | 2010-08-10 18:02:42 -0700 | [diff] [blame] | 1667 | static struct s3c_fb_win_variant s3c_fb_data_64xx_wins[] = { |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1668 | [0] = { |
| 1669 | .has_osd_c = 1, |
Pawel Osciak | f676ec2 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 1670 | .osd_size_off = 0x8, |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1671 | .palette_sz = 256, |
Jingoo Han | cd74eba | 2011-04-22 07:09:40 +0000 | [diff] [blame] | 1672 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(16) | |
| 1673 | VALID_BPP(18) | VALID_BPP(24)), |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1674 | }, |
| 1675 | [1] = { |
| 1676 | .has_osd_c = 1, |
| 1677 | .has_osd_d = 1, |
Jingoo Han | c9d503e | 2011-04-22 07:09:31 +0000 | [diff] [blame] | 1678 | .osd_size_off = 0xc, |
Pawel Osciak | f676ec2 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 1679 | .has_osd_alpha = 1, |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1680 | .palette_sz = 256, |
| 1681 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(16) | |
| 1682 | VALID_BPP(18) | VALID_BPP(19) | |
Jingoo Han | cd74eba | 2011-04-22 07:09:40 +0000 | [diff] [blame] | 1683 | VALID_BPP(24) | VALID_BPP(25) | |
| 1684 | VALID_BPP(28)), |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1685 | }, |
| 1686 | [2] = { |
| 1687 | .has_osd_c = 1, |
| 1688 | .has_osd_d = 1, |
Jingoo Han | c9d503e | 2011-04-22 07:09:31 +0000 | [diff] [blame] | 1689 | .osd_size_off = 0xc, |
Pawel Osciak | f676ec2 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 1690 | .has_osd_alpha = 1, |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1691 | .palette_sz = 16, |
| 1692 | .palette_16bpp = 1, |
| 1693 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(16) | |
| 1694 | VALID_BPP(18) | VALID_BPP(19) | |
Jingoo Han | cd74eba | 2011-04-22 07:09:40 +0000 | [diff] [blame] | 1695 | VALID_BPP(24) | VALID_BPP(25) | |
| 1696 | VALID_BPP(28)), |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1697 | }, |
| 1698 | [3] = { |
| 1699 | .has_osd_c = 1, |
Pawel Osciak | f676ec2 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 1700 | .has_osd_alpha = 1, |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1701 | .palette_sz = 16, |
| 1702 | .palette_16bpp = 1, |
| 1703 | .valid_bpp = (VALID_BPP124 | VALID_BPP(16) | |
| 1704 | VALID_BPP(18) | VALID_BPP(19) | |
Jingoo Han | cd74eba | 2011-04-22 07:09:40 +0000 | [diff] [blame] | 1705 | VALID_BPP(24) | VALID_BPP(25) | |
| 1706 | VALID_BPP(28)), |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1707 | }, |
| 1708 | [4] = { |
| 1709 | .has_osd_c = 1, |
Pawel Osciak | f676ec2 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 1710 | .has_osd_alpha = 1, |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1711 | .palette_sz = 4, |
| 1712 | .palette_16bpp = 1, |
| 1713 | .valid_bpp = (VALID_BPP(1) | VALID_BPP(2) | |
| 1714 | VALID_BPP(16) | VALID_BPP(18) | |
Jingoo Han | cd74eba | 2011-04-22 07:09:40 +0000 | [diff] [blame] | 1715 | VALID_BPP(19) | VALID_BPP(24) | |
| 1716 | VALID_BPP(25) | VALID_BPP(28)), |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1717 | }, |
| 1718 | }; |
| 1719 | |
Jingoo Han | af4a835 | 2011-04-22 07:09:48 +0000 | [diff] [blame] | 1720 | static struct s3c_fb_win_variant s3c_fb_data_s5p_wins[] = { |
| 1721 | [0] = { |
| 1722 | .has_osd_c = 1, |
| 1723 | .osd_size_off = 0x8, |
| 1724 | .palette_sz = 256, |
| 1725 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(13) | |
| 1726 | VALID_BPP(15) | VALID_BPP(16) | |
| 1727 | VALID_BPP(18) | VALID_BPP(19) | |
| 1728 | VALID_BPP(24) | VALID_BPP(25) | |
| 1729 | VALID_BPP(32)), |
| 1730 | }, |
| 1731 | [1] = { |
| 1732 | .has_osd_c = 1, |
| 1733 | .has_osd_d = 1, |
| 1734 | .osd_size_off = 0xc, |
| 1735 | .has_osd_alpha = 1, |
| 1736 | .palette_sz = 256, |
| 1737 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(13) | |
| 1738 | VALID_BPP(15) | VALID_BPP(16) | |
| 1739 | VALID_BPP(18) | VALID_BPP(19) | |
| 1740 | VALID_BPP(24) | VALID_BPP(25) | |
| 1741 | VALID_BPP(32)), |
| 1742 | }, |
| 1743 | [2] = { |
| 1744 | .has_osd_c = 1, |
| 1745 | .has_osd_d = 1, |
| 1746 | .osd_size_off = 0xc, |
| 1747 | .has_osd_alpha = 1, |
| 1748 | .palette_sz = 256, |
| 1749 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(13) | |
| 1750 | VALID_BPP(15) | VALID_BPP(16) | |
| 1751 | VALID_BPP(18) | VALID_BPP(19) | |
| 1752 | VALID_BPP(24) | VALID_BPP(25) | |
| 1753 | VALID_BPP(32)), |
| 1754 | }, |
| 1755 | [3] = { |
| 1756 | .has_osd_c = 1, |
| 1757 | .has_osd_alpha = 1, |
| 1758 | .palette_sz = 256, |
| 1759 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(13) | |
| 1760 | VALID_BPP(15) | VALID_BPP(16) | |
| 1761 | VALID_BPP(18) | VALID_BPP(19) | |
| 1762 | VALID_BPP(24) | VALID_BPP(25) | |
| 1763 | VALID_BPP(32)), |
| 1764 | }, |
| 1765 | [4] = { |
| 1766 | .has_osd_c = 1, |
| 1767 | .has_osd_alpha = 1, |
| 1768 | .palette_sz = 256, |
| 1769 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(13) | |
| 1770 | VALID_BPP(15) | VALID_BPP(16) | |
| 1771 | VALID_BPP(18) | VALID_BPP(19) | |
| 1772 | VALID_BPP(24) | VALID_BPP(25) | |
| 1773 | VALID_BPP(32)), |
| 1774 | }, |
| 1775 | }; |
| 1776 | |
Marek Szyprowski | 8cfdcb2 | 2010-08-10 18:02:42 -0700 | [diff] [blame] | 1777 | static struct s3c_fb_driverdata s3c_fb_data_64xx = { |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1778 | .variant = { |
| 1779 | .nr_windows = 5, |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1780 | .vidtcon = VIDTCON0, |
| 1781 | .wincon = WINCON(0), |
| 1782 | .winmap = WINxMAP(0), |
| 1783 | .keycon = WKEYCON, |
| 1784 | .osd = VIDOSD_BASE, |
| 1785 | .osd_stride = 16, |
| 1786 | .buf_start = VIDW_BUF_START(0), |
| 1787 | .buf_size = VIDW_BUF_SIZE(0), |
| 1788 | .buf_end = VIDW_BUF_END(0), |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1789 | |
| 1790 | .palette = { |
| 1791 | [0] = 0x400, |
| 1792 | [1] = 0x800, |
| 1793 | [2] = 0x300, |
| 1794 | [3] = 0x320, |
| 1795 | [4] = 0x340, |
| 1796 | }, |
Pawel Osciak | 067b226 | 2010-08-10 18:02:38 -0700 | [diff] [blame] | 1797 | |
| 1798 | .has_prtcon = 1, |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1799 | .has_clksel = 1, |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1800 | }, |
| 1801 | .win[0] = &s3c_fb_data_64xx_wins[0], |
| 1802 | .win[1] = &s3c_fb_data_64xx_wins[1], |
| 1803 | .win[2] = &s3c_fb_data_64xx_wins[2], |
| 1804 | .win[3] = &s3c_fb_data_64xx_wins[3], |
| 1805 | .win[4] = &s3c_fb_data_64xx_wins[4], |
| 1806 | }; |
| 1807 | |
Marek Szyprowski | 8cfdcb2 | 2010-08-10 18:02:42 -0700 | [diff] [blame] | 1808 | static struct s3c_fb_driverdata s3c_fb_data_s5pv210 = { |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1809 | .variant = { |
| 1810 | .nr_windows = 5, |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1811 | .vidtcon = VIDTCON0, |
| 1812 | .wincon = WINCON(0), |
| 1813 | .winmap = WINxMAP(0), |
| 1814 | .keycon = WKEYCON, |
| 1815 | .osd = VIDOSD_BASE, |
| 1816 | .osd_stride = 16, |
| 1817 | .buf_start = VIDW_BUF_START(0), |
| 1818 | .buf_size = VIDW_BUF_SIZE(0), |
| 1819 | .buf_end = VIDW_BUF_END(0), |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1820 | |
| 1821 | .palette = { |
| 1822 | [0] = 0x2400, |
| 1823 | [1] = 0x2800, |
| 1824 | [2] = 0x2c00, |
| 1825 | [3] = 0x3000, |
| 1826 | [4] = 0x3400, |
| 1827 | }, |
Pawel Osciak | f5ec546 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 1828 | |
| 1829 | .has_shadowcon = 1, |
Jingoo Han | f7f31e5 | 2012-01-27 14:47:22 +0900 | [diff] [blame] | 1830 | .has_blendcon = 1, |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1831 | .has_clksel = 1, |
Jingoo Han | d8b97db | 2012-01-27 14:47:55 +0900 | [diff] [blame] | 1832 | .has_fixvclk = 1, |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1833 | }, |
| 1834 | .win[0] = &s3c_fb_data_s5p_wins[0], |
| 1835 | .win[1] = &s3c_fb_data_s5p_wins[1], |
| 1836 | .win[2] = &s3c_fb_data_s5p_wins[2], |
| 1837 | .win[3] = &s3c_fb_data_s5p_wins[3], |
| 1838 | .win[4] = &s3c_fb_data_s5p_wins[4], |
| 1839 | }; |
| 1840 | |
| 1841 | static struct s3c_fb_driverdata s3c_fb_data_exynos4 = { |
| 1842 | .variant = { |
| 1843 | .nr_windows = 5, |
| 1844 | .vidtcon = VIDTCON0, |
| 1845 | .wincon = WINCON(0), |
| 1846 | .winmap = WINxMAP(0), |
| 1847 | .keycon = WKEYCON, |
| 1848 | .osd = VIDOSD_BASE, |
| 1849 | .osd_stride = 16, |
| 1850 | .buf_start = VIDW_BUF_START(0), |
| 1851 | .buf_size = VIDW_BUF_SIZE(0), |
| 1852 | .buf_end = VIDW_BUF_END(0), |
| 1853 | |
| 1854 | .palette = { |
| 1855 | [0] = 0x2400, |
| 1856 | [1] = 0x2800, |
| 1857 | [2] = 0x2c00, |
| 1858 | [3] = 0x3000, |
| 1859 | [4] = 0x3400, |
| 1860 | }, |
| 1861 | |
| 1862 | .has_shadowcon = 1, |
Jingoo Han | f7f31e5 | 2012-01-27 14:47:22 +0900 | [diff] [blame] | 1863 | .has_blendcon = 1, |
Jingoo Han | d8b97db | 2012-01-27 14:47:55 +0900 | [diff] [blame] | 1864 | .has_fixvclk = 1, |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1865 | }, |
Jingoo Han | af4a835 | 2011-04-22 07:09:48 +0000 | [diff] [blame] | 1866 | .win[0] = &s3c_fb_data_s5p_wins[0], |
| 1867 | .win[1] = &s3c_fb_data_s5p_wins[1], |
| 1868 | .win[2] = &s3c_fb_data_s5p_wins[2], |
| 1869 | .win[3] = &s3c_fb_data_s5p_wins[3], |
| 1870 | .win[4] = &s3c_fb_data_s5p_wins[4], |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1871 | }; |
| 1872 | |
Jingoo Han | 5c44778 | 2012-03-06 15:53:41 +0900 | [diff] [blame] | 1873 | static struct s3c_fb_driverdata s3c_fb_data_exynos5 = { |
| 1874 | .variant = { |
| 1875 | .nr_windows = 5, |
Jingoo Han | 0b46656 | 2012-09-27 16:23:59 +0900 | [diff] [blame] | 1876 | .vidtcon = FIMD_V8_VIDTCON0, |
Jingoo Han | 5c44778 | 2012-03-06 15:53:41 +0900 | [diff] [blame] | 1877 | .wincon = WINCON(0), |
| 1878 | .winmap = WINxMAP(0), |
| 1879 | .keycon = WKEYCON, |
| 1880 | .osd = VIDOSD_BASE, |
| 1881 | .osd_stride = 16, |
| 1882 | .buf_start = VIDW_BUF_START(0), |
| 1883 | .buf_size = VIDW_BUF_SIZE(0), |
| 1884 | .buf_end = VIDW_BUF_END(0), |
| 1885 | |
| 1886 | .palette = { |
| 1887 | [0] = 0x2400, |
| 1888 | [1] = 0x2800, |
| 1889 | [2] = 0x2c00, |
| 1890 | [3] = 0x3000, |
| 1891 | [4] = 0x3400, |
| 1892 | }, |
| 1893 | .has_shadowcon = 1, |
| 1894 | .has_blendcon = 1, |
| 1895 | .has_fixvclk = 1, |
| 1896 | }, |
| 1897 | .win[0] = &s3c_fb_data_s5p_wins[0], |
| 1898 | .win[1] = &s3c_fb_data_s5p_wins[1], |
| 1899 | .win[2] = &s3c_fb_data_s5p_wins[2], |
| 1900 | .win[3] = &s3c_fb_data_s5p_wins[3], |
| 1901 | .win[4] = &s3c_fb_data_s5p_wins[4], |
| 1902 | }; |
| 1903 | |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1904 | /* S3C2443/S3C2416 style hardware */ |
Marek Szyprowski | 8cfdcb2 | 2010-08-10 18:02:42 -0700 | [diff] [blame] | 1905 | static struct s3c_fb_driverdata s3c_fb_data_s3c2443 = { |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1906 | .variant = { |
| 1907 | .nr_windows = 2, |
| 1908 | .is_2443 = 1, |
| 1909 | |
| 1910 | .vidtcon = 0x08, |
| 1911 | .wincon = 0x14, |
| 1912 | .winmap = 0xd0, |
| 1913 | .keycon = 0xb0, |
| 1914 | .osd = 0x28, |
| 1915 | .osd_stride = 12, |
| 1916 | .buf_start = 0x64, |
| 1917 | .buf_size = 0x94, |
| 1918 | .buf_end = 0x7c, |
| 1919 | |
| 1920 | .palette = { |
| 1921 | [0] = 0x400, |
| 1922 | [1] = 0x800, |
| 1923 | }, |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1924 | .has_clksel = 1, |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1925 | }, |
| 1926 | .win[0] = &(struct s3c_fb_win_variant) { |
| 1927 | .palette_sz = 256, |
| 1928 | .valid_bpp = VALID_BPP1248 | VALID_BPP(16) | VALID_BPP(24), |
| 1929 | }, |
| 1930 | .win[1] = &(struct s3c_fb_win_variant) { |
| 1931 | .has_osd_c = 1, |
Pawel Osciak | f676ec2 | 2010-08-10 18:02:40 -0700 | [diff] [blame] | 1932 | .has_osd_alpha = 1, |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1933 | .palette_sz = 256, |
| 1934 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(16) | |
| 1935 | VALID_BPP(18) | VALID_BPP(19) | |
| 1936 | VALID_BPP(24) | VALID_BPP(25) | |
| 1937 | VALID_BPP(28)), |
| 1938 | }, |
| 1939 | }; |
| 1940 | |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1941 | static struct platform_device_id s3c_fb_driver_ids[] = { |
| 1942 | { |
| 1943 | .name = "s3c-fb", |
| 1944 | .driver_data = (unsigned long)&s3c_fb_data_64xx, |
| 1945 | }, { |
Pawel Osciak | 4e591ac | 2010-08-10 18:02:36 -0700 | [diff] [blame] | 1946 | .name = "s5pv210-fb", |
| 1947 | .driver_data = (unsigned long)&s3c_fb_data_s5pv210, |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1948 | }, { |
Jingoo Han | b5480ed | 2011-08-22 12:16:04 +0900 | [diff] [blame] | 1949 | .name = "exynos4-fb", |
| 1950 | .driver_data = (unsigned long)&s3c_fb_data_exynos4, |
| 1951 | }, { |
Jingoo Han | 5c44778 | 2012-03-06 15:53:41 +0900 | [diff] [blame] | 1952 | .name = "exynos5-fb", |
| 1953 | .driver_data = (unsigned long)&s3c_fb_data_exynos5, |
| 1954 | }, { |
Ben Dooks | c4bb6ff | 2010-08-10 18:02:34 -0700 | [diff] [blame] | 1955 | .name = "s3c2443-fb", |
| 1956 | .driver_data = (unsigned long)&s3c_fb_data_s3c2443, |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1957 | }, |
| 1958 | {}, |
| 1959 | }; |
| 1960 | MODULE_DEVICE_TABLE(platform, s3c_fb_driver_ids); |
| 1961 | |
Mark Brown | f4f5147 | 2011-12-27 14:16:10 +0000 | [diff] [blame] | 1962 | static const struct dev_pm_ops s3cfb_pm_ops = { |
| 1963 | SET_SYSTEM_SLEEP_PM_OPS(s3c_fb_suspend, s3c_fb_resume) |
| 1964 | SET_RUNTIME_PM_OPS(s3c_fb_runtime_suspend, s3c_fb_runtime_resume, |
| 1965 | NULL) |
| 1966 | }; |
Jingoo Han | 4959212 | 2010-12-17 16:45:46 +0900 | [diff] [blame] | 1967 | |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1968 | static struct platform_driver s3c_fb_driver = { |
| 1969 | .probe = s3c_fb_probe, |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 1970 | .remove = s3c_fb_remove, |
Ben Dooks | 50a5503 | 2010-08-10 18:02:33 -0700 | [diff] [blame] | 1971 | .id_table = s3c_fb_driver_ids, |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1972 | .driver = { |
| 1973 | .name = "s3c-fb", |
| 1974 | .owner = THIS_MODULE, |
Mark Brown | fe05f8b | 2011-12-27 14:16:07 +0000 | [diff] [blame] | 1975 | .pm = &s3cfb_pm_ops, |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1976 | }, |
| 1977 | }; |
| 1978 | |
Axel Lin | 4277f2c | 2011-11-26 10:25:54 +0800 | [diff] [blame] | 1979 | module_platform_driver(s3c_fb_driver); |
Ben Dooks | ec549a0 | 2009-03-31 15:25:39 -0700 | [diff] [blame] | 1980 | |
| 1981 | MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); |
| 1982 | MODULE_DESCRIPTION("Samsung S3C SoC Framebuffer driver"); |
| 1983 | MODULE_LICENSE("GPL"); |
| 1984 | MODULE_ALIAS("platform:s3c-fb"); |