Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1 | /* exynos_drm_fimd.c |
| 2 | * |
| 3 | * Copyright (C) 2011 Samsung Electronics Co.Ltd |
| 4 | * Authors: |
| 5 | * Joonyoung Shim <jy0922.shim@samsung.com> |
| 6 | * Inki Dae <inki.dae@samsung.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License as published by the |
| 10 | * Free Software Foundation; either version 2 of the License, or (at your |
| 11 | * option) any later version. |
| 12 | * |
| 13 | */ |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 14 | #include <drm/drmP.h> |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 15 | |
| 16 | #include <linux/kernel.h> |
| 17 | #include <linux/module.h> |
| 18 | #include <linux/platform_device.h> |
| 19 | #include <linux/clk.h> |
Joonyoung Shim | d636ead | 2012-12-14 15:48:25 +0900 | [diff] [blame] | 20 | #include <linux/of_device.h> |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 21 | #include <linux/pm_runtime.h> |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 22 | |
Vikas Sajjan | 7f4596f | 2013-03-07 12:15:21 +0530 | [diff] [blame] | 23 | #include <video/of_display_timing.h> |
Leela Krishna Amudala | 5a213a5 | 2012-08-08 09:44:49 +0900 | [diff] [blame] | 24 | #include <video/samsung_fimd.h> |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 25 | #include <drm/exynos_drm.h> |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 26 | |
| 27 | #include "exynos_drm_drv.h" |
| 28 | #include "exynos_drm_fbdev.h" |
| 29 | #include "exynos_drm_crtc.h" |
Inki Dae | bcc5cd1 | 2012-10-19 17:16:36 +0900 | [diff] [blame] | 30 | #include "exynos_drm_iommu.h" |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 31 | |
| 32 | /* |
| 33 | * FIMD is stand for Fully Interactive Mobile Display and |
| 34 | * as a display controller, it transfers contents drawn on memory |
| 35 | * to a LCD Panel through Display Interfaces such as RGB or |
| 36 | * CPU Interface. |
| 37 | */ |
| 38 | |
| 39 | /* position control register for hardware window 0, 2 ~ 4.*/ |
| 40 | #define VIDOSD_A(win) (VIDOSD_BASE + 0x00 + (win) * 16) |
| 41 | #define VIDOSD_B(win) (VIDOSD_BASE + 0x04 + (win) * 16) |
Leela Krishna Amudala | 0f10cf1 | 2013-03-07 23:28:52 -0500 | [diff] [blame] | 42 | /* |
| 43 | * size control register for hardware windows 0 and alpha control register |
| 44 | * for hardware windows 1 ~ 4 |
| 45 | */ |
| 46 | #define VIDOSD_C(win) (VIDOSD_BASE + 0x08 + (win) * 16) |
| 47 | /* size control register for hardware windows 1 ~ 2. */ |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 48 | #define VIDOSD_D(win) (VIDOSD_BASE + 0x0C + (win) * 16) |
| 49 | |
| 50 | #define VIDWx_BUF_START(win, buf) (VIDW_BUF_START(buf) + (win) * 8) |
| 51 | #define VIDWx_BUF_END(win, buf) (VIDW_BUF_END(buf) + (win) * 8) |
| 52 | #define VIDWx_BUF_SIZE(win, buf) (VIDW_BUF_SIZE(buf) + (win) * 4) |
| 53 | |
| 54 | /* color key control register for hardware window 1 ~ 4. */ |
Leela Krishna Amudala | 0f10cf1 | 2013-03-07 23:28:52 -0500 | [diff] [blame] | 55 | #define WKEYCON0_BASE(x) ((WKEYCON0 + 0x140) + ((x - 1) * 8)) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 56 | /* color key value register for hardware window 1 ~ 4. */ |
Leela Krishna Amudala | 0f10cf1 | 2013-03-07 23:28:52 -0500 | [diff] [blame] | 57 | #define WKEYCON1_BASE(x) ((WKEYCON1 + 0x140) + ((x - 1) * 8)) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 58 | |
| 59 | /* FIMD has totally five hardware windows. */ |
| 60 | #define WINDOWS_NR 5 |
| 61 | |
| 62 | #define get_fimd_context(dev) platform_get_drvdata(to_platform_device(dev)) |
| 63 | |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 64 | struct fimd_driver_data { |
| 65 | unsigned int timing_base; |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 66 | |
| 67 | unsigned int has_shadowcon:1; |
Tomasz Figa | 411d9ed | 2013-05-01 21:02:28 +0200 | [diff] [blame] | 68 | unsigned int has_clksel:1; |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 69 | }; |
| 70 | |
Tomasz Figa | 725ddea | 2013-05-01 21:02:29 +0200 | [diff] [blame] | 71 | static struct fimd_driver_data s3c64xx_fimd_driver_data = { |
| 72 | .timing_base = 0x0, |
| 73 | .has_clksel = 1, |
| 74 | }; |
| 75 | |
Sachin Kamat | 6ecf18f | 2012-11-19 15:22:54 +0530 | [diff] [blame] | 76 | static struct fimd_driver_data exynos4_fimd_driver_data = { |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 77 | .timing_base = 0x0, |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 78 | .has_shadowcon = 1, |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 79 | }; |
| 80 | |
Sachin Kamat | 6ecf18f | 2012-11-19 15:22:54 +0530 | [diff] [blame] | 81 | static struct fimd_driver_data exynos5_fimd_driver_data = { |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 82 | .timing_base = 0x20000, |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 83 | .has_shadowcon = 1, |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 84 | }; |
| 85 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 86 | struct fimd_win_data { |
| 87 | unsigned int offset_x; |
| 88 | unsigned int offset_y; |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 89 | unsigned int ovl_width; |
| 90 | unsigned int ovl_height; |
| 91 | unsigned int fb_width; |
| 92 | unsigned int fb_height; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 93 | unsigned int bpp; |
Inki Dae | 2c87112 | 2011-11-12 15:23:32 +0900 | [diff] [blame] | 94 | dma_addr_t dma_addr; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 95 | unsigned int buf_offsize; |
| 96 | unsigned int line_size; /* bytes */ |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 97 | bool enabled; |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 98 | bool resume; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 99 | }; |
| 100 | |
| 101 | struct fimd_context { |
| 102 | struct exynos_drm_subdrv subdrv; |
| 103 | int irq; |
| 104 | struct drm_crtc *crtc; |
| 105 | struct clk *bus_clk; |
| 106 | struct clk *lcd_clk; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 107 | void __iomem *regs; |
| 108 | struct fimd_win_data win_data[WINDOWS_NR]; |
| 109 | unsigned int clkdiv; |
| 110 | unsigned int default_win; |
| 111 | unsigned long irq_flags; |
| 112 | u32 vidcon0; |
| 113 | u32 vidcon1; |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 114 | bool suspended; |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 115 | struct mutex lock; |
Prathyush K | 01ce113 | 2012-12-06 20:16:04 +0530 | [diff] [blame] | 116 | wait_queue_head_t wait_vsync_queue; |
| 117 | atomic_t wait_vsync_event; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 118 | |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 119 | struct exynos_drm_panel_info *panel; |
Tomasz Figa | 1887346 | 2013-05-01 21:02:26 +0200 | [diff] [blame] | 120 | struct fimd_driver_data *driver_data; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 121 | }; |
| 122 | |
Joonyoung Shim | d636ead | 2012-12-14 15:48:25 +0900 | [diff] [blame] | 123 | #ifdef CONFIG_OF |
| 124 | static const struct of_device_id fimd_driver_dt_match[] = { |
Tomasz Figa | 725ddea | 2013-05-01 21:02:29 +0200 | [diff] [blame] | 125 | { .compatible = "samsung,s3c6400-fimd", |
| 126 | .data = &s3c64xx_fimd_driver_data }, |
Vikas Sajjan | 5830daf | 2013-02-27 16:02:58 +0530 | [diff] [blame] | 127 | { .compatible = "samsung,exynos4210-fimd", |
Joonyoung Shim | d636ead | 2012-12-14 15:48:25 +0900 | [diff] [blame] | 128 | .data = &exynos4_fimd_driver_data }, |
Vikas Sajjan | 5830daf | 2013-02-27 16:02:58 +0530 | [diff] [blame] | 129 | { .compatible = "samsung,exynos5250-fimd", |
Joonyoung Shim | d636ead | 2012-12-14 15:48:25 +0900 | [diff] [blame] | 130 | .data = &exynos5_fimd_driver_data }, |
| 131 | {}, |
| 132 | }; |
| 133 | MODULE_DEVICE_TABLE(of, fimd_driver_dt_match); |
| 134 | #endif |
| 135 | |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 136 | static inline struct fimd_driver_data *drm_fimd_get_driver_data( |
| 137 | struct platform_device *pdev) |
| 138 | { |
Joonyoung Shim | d636ead | 2012-12-14 15:48:25 +0900 | [diff] [blame] | 139 | #ifdef CONFIG_OF |
| 140 | const struct of_device_id *of_id = |
| 141 | of_match_device(fimd_driver_dt_match, &pdev->dev); |
| 142 | |
| 143 | if (of_id) |
| 144 | return (struct fimd_driver_data *)of_id->data; |
| 145 | #endif |
| 146 | |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 147 | return (struct fimd_driver_data *) |
| 148 | platform_get_device_id(pdev)->driver_data; |
| 149 | } |
| 150 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 151 | static bool fimd_display_is_connected(struct device *dev) |
| 152 | { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 153 | /* TODO. */ |
| 154 | |
| 155 | return true; |
| 156 | } |
| 157 | |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 158 | static void *fimd_get_panel(struct device *dev) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 159 | { |
| 160 | struct fimd_context *ctx = get_fimd_context(dev); |
| 161 | |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 162 | return ctx->panel; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 163 | } |
| 164 | |
Rahul Sharma | 16844fb | 2013-06-10 14:50:00 +0530 | [diff] [blame] | 165 | static int fimd_check_mode(struct device *dev, struct drm_display_mode *mode) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 166 | { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 167 | /* TODO. */ |
| 168 | |
| 169 | return 0; |
| 170 | } |
| 171 | |
| 172 | static int fimd_display_power_on(struct device *dev, int mode) |
| 173 | { |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 174 | /* TODO */ |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 175 | |
| 176 | return 0; |
| 177 | } |
| 178 | |
Inki Dae | 74ccc53 | 2011-10-19 17:23:07 +0900 | [diff] [blame] | 179 | static struct exynos_drm_display_ops fimd_display_ops = { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 180 | .type = EXYNOS_DISPLAY_TYPE_LCD, |
| 181 | .is_connected = fimd_display_is_connected, |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 182 | .get_panel = fimd_get_panel, |
Rahul Sharma | 16844fb | 2013-06-10 14:50:00 +0530 | [diff] [blame] | 183 | .check_mode = fimd_check_mode, |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 184 | .power_on = fimd_display_power_on, |
| 185 | }; |
| 186 | |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 187 | static void fimd_dpms(struct device *subdrv_dev, int mode) |
| 188 | { |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 189 | struct fimd_context *ctx = get_fimd_context(subdrv_dev); |
| 190 | |
YoungJun Cho | bca34c9 | 2013-06-12 10:40:52 +0900 | [diff] [blame] | 191 | DRM_DEBUG_KMS("%d\n", mode); |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 192 | |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 193 | mutex_lock(&ctx->lock); |
| 194 | |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 195 | switch (mode) { |
| 196 | case DRM_MODE_DPMS_ON: |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 197 | /* |
| 198 | * enable fimd hardware only if suspended status. |
| 199 | * |
| 200 | * P.S. fimd_dpms function would be called at booting time so |
| 201 | * clk_enable could be called double time. |
| 202 | */ |
| 203 | if (ctx->suspended) |
| 204 | pm_runtime_get_sync(subdrv_dev); |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 205 | break; |
| 206 | case DRM_MODE_DPMS_STANDBY: |
| 207 | case DRM_MODE_DPMS_SUSPEND: |
| 208 | case DRM_MODE_DPMS_OFF: |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 209 | if (!ctx->suspended) |
| 210 | pm_runtime_put_sync(subdrv_dev); |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 211 | break; |
| 212 | default: |
| 213 | DRM_DEBUG_KMS("unspecified mode %d\n", mode); |
| 214 | break; |
| 215 | } |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 216 | |
| 217 | mutex_unlock(&ctx->lock); |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 218 | } |
| 219 | |
| 220 | static void fimd_apply(struct device *subdrv_dev) |
| 221 | { |
| 222 | struct fimd_context *ctx = get_fimd_context(subdrv_dev); |
Joonyoung Shim | 677e84c | 2012-04-05 20:49:27 +0900 | [diff] [blame] | 223 | struct exynos_drm_manager *mgr = ctx->subdrv.manager; |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 224 | struct exynos_drm_manager_ops *mgr_ops = mgr->ops; |
| 225 | struct exynos_drm_overlay_ops *ovl_ops = mgr->overlay_ops; |
| 226 | struct fimd_win_data *win_data; |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 227 | int i; |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 228 | |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 229 | for (i = 0; i < WINDOWS_NR; i++) { |
| 230 | win_data = &ctx->win_data[i]; |
| 231 | if (win_data->enabled && (ovl_ops && ovl_ops->commit)) |
| 232 | ovl_ops->commit(subdrv_dev, i); |
| 233 | } |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 234 | |
| 235 | if (mgr_ops && mgr_ops->commit) |
| 236 | mgr_ops->commit(subdrv_dev); |
| 237 | } |
| 238 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 239 | static void fimd_commit(struct device *dev) |
| 240 | { |
| 241 | struct fimd_context *ctx = get_fimd_context(dev); |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 242 | struct exynos_drm_panel_info *panel = ctx->panel; |
| 243 | struct fb_videomode *timing = &panel->timing; |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 244 | struct fimd_driver_data *driver_data; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 245 | u32 val; |
| 246 | |
Tomasz Figa | 1887346 | 2013-05-01 21:02:26 +0200 | [diff] [blame] | 247 | driver_data = ctx->driver_data; |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 248 | if (ctx->suspended) |
| 249 | return; |
| 250 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 251 | /* setup polarity values from machine code. */ |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 252 | writel(ctx->vidcon1, ctx->regs + driver_data->timing_base + VIDCON1); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 253 | |
| 254 | /* setup vertical timing values. */ |
| 255 | val = VIDTCON0_VBPD(timing->upper_margin - 1) | |
| 256 | VIDTCON0_VFPD(timing->lower_margin - 1) | |
| 257 | VIDTCON0_VSPW(timing->vsync_len - 1); |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 258 | writel(val, ctx->regs + driver_data->timing_base + VIDTCON0); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 259 | |
| 260 | /* setup horizontal timing values. */ |
| 261 | val = VIDTCON1_HBPD(timing->left_margin - 1) | |
| 262 | VIDTCON1_HFPD(timing->right_margin - 1) | |
| 263 | VIDTCON1_HSPW(timing->hsync_len - 1); |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 264 | writel(val, ctx->regs + driver_data->timing_base + VIDTCON1); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 265 | |
| 266 | /* setup horizontal and vertical display size. */ |
| 267 | val = VIDTCON2_LINEVAL(timing->yres - 1) | |
Joonyoung Shim | ca555e5 | 2012-12-14 15:48:24 +0900 | [diff] [blame] | 268 | VIDTCON2_HOZVAL(timing->xres - 1) | |
| 269 | VIDTCON2_LINEVAL_E(timing->yres - 1) | |
| 270 | VIDTCON2_HOZVAL_E(timing->xres - 1); |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 271 | writel(val, ctx->regs + driver_data->timing_base + VIDTCON2); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 272 | |
| 273 | /* setup clock source, clock divider, enable dma. */ |
| 274 | val = ctx->vidcon0; |
| 275 | val &= ~(VIDCON0_CLKVAL_F_MASK | VIDCON0_CLKDIR); |
| 276 | |
Tomasz Figa | 411d9ed | 2013-05-01 21:02:28 +0200 | [diff] [blame] | 277 | if (ctx->driver_data->has_clksel) { |
| 278 | val &= ~VIDCON0_CLKSEL_MASK; |
| 279 | val |= VIDCON0_CLKSEL_LCD; |
| 280 | } |
| 281 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 282 | if (ctx->clkdiv > 1) |
| 283 | val |= VIDCON0_CLKVAL_F(ctx->clkdiv - 1) | VIDCON0_CLKDIR; |
| 284 | else |
| 285 | val &= ~VIDCON0_CLKDIR; /* 1:1 clock */ |
| 286 | |
| 287 | /* |
| 288 | * fields of register with prefix '_F' would be updated |
| 289 | * at vsync(same as dma start) |
| 290 | */ |
| 291 | val |= VIDCON0_ENVID | VIDCON0_ENVID_F; |
| 292 | writel(val, ctx->regs + VIDCON0); |
| 293 | } |
| 294 | |
| 295 | static int fimd_enable_vblank(struct device *dev) |
| 296 | { |
| 297 | struct fimd_context *ctx = get_fimd_context(dev); |
| 298 | u32 val; |
| 299 | |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 300 | if (ctx->suspended) |
| 301 | return -EPERM; |
| 302 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 303 | if (!test_and_set_bit(0, &ctx->irq_flags)) { |
| 304 | val = readl(ctx->regs + VIDINTCON0); |
| 305 | |
| 306 | val |= VIDINTCON0_INT_ENABLE; |
| 307 | val |= VIDINTCON0_INT_FRAME; |
| 308 | |
| 309 | val &= ~VIDINTCON0_FRAMESEL0_MASK; |
| 310 | val |= VIDINTCON0_FRAMESEL0_VSYNC; |
| 311 | val &= ~VIDINTCON0_FRAMESEL1_MASK; |
| 312 | val |= VIDINTCON0_FRAMESEL1_NONE; |
| 313 | |
| 314 | writel(val, ctx->regs + VIDINTCON0); |
| 315 | } |
| 316 | |
| 317 | return 0; |
| 318 | } |
| 319 | |
| 320 | static void fimd_disable_vblank(struct device *dev) |
| 321 | { |
| 322 | struct fimd_context *ctx = get_fimd_context(dev); |
| 323 | u32 val; |
| 324 | |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 325 | if (ctx->suspended) |
| 326 | return; |
| 327 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 328 | if (test_and_clear_bit(0, &ctx->irq_flags)) { |
| 329 | val = readl(ctx->regs + VIDINTCON0); |
| 330 | |
| 331 | val &= ~VIDINTCON0_INT_FRAME; |
| 332 | val &= ~VIDINTCON0_INT_ENABLE; |
| 333 | |
| 334 | writel(val, ctx->regs + VIDINTCON0); |
| 335 | } |
| 336 | } |
| 337 | |
Prathyush K | 0703397 | 2012-12-06 20:16:02 +0530 | [diff] [blame] | 338 | static void fimd_wait_for_vblank(struct device *dev) |
| 339 | { |
| 340 | struct fimd_context *ctx = get_fimd_context(dev); |
Prathyush K | 0703397 | 2012-12-06 20:16:02 +0530 | [diff] [blame] | 341 | |
Prathyush K | 01ce113 | 2012-12-06 20:16:04 +0530 | [diff] [blame] | 342 | if (ctx->suspended) |
| 343 | return; |
| 344 | |
| 345 | atomic_set(&ctx->wait_vsync_event, 1); |
| 346 | |
| 347 | /* |
| 348 | * wait for FIMD to signal VSYNC interrupt or return after |
| 349 | * timeout which is set to 50ms (refresh rate of 20). |
| 350 | */ |
| 351 | if (!wait_event_timeout(ctx->wait_vsync_queue, |
| 352 | !atomic_read(&ctx->wait_vsync_event), |
| 353 | DRM_HZ/20)) |
Prathyush K | 0703397 | 2012-12-06 20:16:02 +0530 | [diff] [blame] | 354 | DRM_DEBUG_KMS("vblank wait timed out.\n"); |
| 355 | } |
| 356 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 357 | static struct exynos_drm_manager_ops fimd_manager_ops = { |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 358 | .dpms = fimd_dpms, |
| 359 | .apply = fimd_apply, |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 360 | .commit = fimd_commit, |
| 361 | .enable_vblank = fimd_enable_vblank, |
| 362 | .disable_vblank = fimd_disable_vblank, |
Prathyush K | 0703397 | 2012-12-06 20:16:02 +0530 | [diff] [blame] | 363 | .wait_for_vblank = fimd_wait_for_vblank, |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 364 | }; |
| 365 | |
| 366 | static void fimd_win_mode_set(struct device *dev, |
| 367 | struct exynos_drm_overlay *overlay) |
| 368 | { |
| 369 | struct fimd_context *ctx = get_fimd_context(dev); |
| 370 | struct fimd_win_data *win_data; |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 371 | int win; |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 372 | unsigned long offset; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 373 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 374 | if (!overlay) { |
| 375 | dev_err(dev, "overlay is NULL\n"); |
| 376 | return; |
| 377 | } |
| 378 | |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 379 | win = overlay->zpos; |
| 380 | if (win == DEFAULT_ZPOS) |
| 381 | win = ctx->default_win; |
| 382 | |
Krzysztof Kozlowski | 37b006e | 2013-05-27 11:56:26 +0200 | [diff] [blame] | 383 | if (win < 0 || win >= WINDOWS_NR) |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 384 | return; |
| 385 | |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 386 | offset = overlay->fb_x * (overlay->bpp >> 3); |
| 387 | offset += overlay->fb_y * overlay->pitch; |
| 388 | |
| 389 | DRM_DEBUG_KMS("offset = 0x%lx, pitch = %x\n", offset, overlay->pitch); |
| 390 | |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 391 | win_data = &ctx->win_data[win]; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 392 | |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 393 | win_data->offset_x = overlay->crtc_x; |
| 394 | win_data->offset_y = overlay->crtc_y; |
| 395 | win_data->ovl_width = overlay->crtc_width; |
| 396 | win_data->ovl_height = overlay->crtc_height; |
| 397 | win_data->fb_width = overlay->fb_width; |
| 398 | win_data->fb_height = overlay->fb_height; |
Seung-Woo Kim | 229d353 | 2011-12-15 14:36:22 +0900 | [diff] [blame] | 399 | win_data->dma_addr = overlay->dma_addr[0] + offset; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 400 | win_data->bpp = overlay->bpp; |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 401 | win_data->buf_offsize = (overlay->fb_width - overlay->crtc_width) * |
| 402 | (overlay->bpp >> 3); |
| 403 | win_data->line_size = overlay->crtc_width * (overlay->bpp >> 3); |
| 404 | |
| 405 | DRM_DEBUG_KMS("offset_x = %d, offset_y = %d\n", |
| 406 | win_data->offset_x, win_data->offset_y); |
| 407 | DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n", |
| 408 | win_data->ovl_width, win_data->ovl_height); |
YoungJun Cho | ddd8e95 | 2012-12-10 15:44:58 +0900 | [diff] [blame] | 409 | DRM_DEBUG_KMS("paddr = 0x%lx\n", (unsigned long)win_data->dma_addr); |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 410 | DRM_DEBUG_KMS("fb_width = %d, crtc_width = %d\n", |
| 411 | overlay->fb_width, overlay->crtc_width); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 412 | } |
| 413 | |
| 414 | static void fimd_win_set_pixfmt(struct device *dev, unsigned int win) |
| 415 | { |
| 416 | struct fimd_context *ctx = get_fimd_context(dev); |
| 417 | struct fimd_win_data *win_data = &ctx->win_data[win]; |
| 418 | unsigned long val; |
| 419 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 420 | val = WINCONx_ENWIN; |
| 421 | |
| 422 | switch (win_data->bpp) { |
| 423 | case 1: |
| 424 | val |= WINCON0_BPPMODE_1BPP; |
| 425 | val |= WINCONx_BITSWP; |
| 426 | val |= WINCONx_BURSTLEN_4WORD; |
| 427 | break; |
| 428 | case 2: |
| 429 | val |= WINCON0_BPPMODE_2BPP; |
| 430 | val |= WINCONx_BITSWP; |
| 431 | val |= WINCONx_BURSTLEN_8WORD; |
| 432 | break; |
| 433 | case 4: |
| 434 | val |= WINCON0_BPPMODE_4BPP; |
| 435 | val |= WINCONx_BITSWP; |
| 436 | val |= WINCONx_BURSTLEN_8WORD; |
| 437 | break; |
| 438 | case 8: |
| 439 | val |= WINCON0_BPPMODE_8BPP_PALETTE; |
| 440 | val |= WINCONx_BURSTLEN_8WORD; |
| 441 | val |= WINCONx_BYTSWP; |
| 442 | break; |
| 443 | case 16: |
| 444 | val |= WINCON0_BPPMODE_16BPP_565; |
| 445 | val |= WINCONx_HAWSWP; |
| 446 | val |= WINCONx_BURSTLEN_16WORD; |
| 447 | break; |
| 448 | case 24: |
| 449 | val |= WINCON0_BPPMODE_24BPP_888; |
| 450 | val |= WINCONx_WSWP; |
| 451 | val |= WINCONx_BURSTLEN_16WORD; |
| 452 | break; |
| 453 | case 32: |
| 454 | val |= WINCON1_BPPMODE_28BPP_A4888 |
| 455 | | WINCON1_BLD_PIX | WINCON1_ALPHA_SEL; |
| 456 | val |= WINCONx_WSWP; |
| 457 | val |= WINCONx_BURSTLEN_16WORD; |
| 458 | break; |
| 459 | default: |
| 460 | DRM_DEBUG_KMS("invalid pixel size so using unpacked 24bpp.\n"); |
| 461 | |
| 462 | val |= WINCON0_BPPMODE_24BPP_888; |
| 463 | val |= WINCONx_WSWP; |
| 464 | val |= WINCONx_BURSTLEN_16WORD; |
| 465 | break; |
| 466 | } |
| 467 | |
| 468 | DRM_DEBUG_KMS("bpp = %d\n", win_data->bpp); |
| 469 | |
| 470 | writel(val, ctx->regs + WINCON(win)); |
| 471 | } |
| 472 | |
| 473 | static void fimd_win_set_colkey(struct device *dev, unsigned int win) |
| 474 | { |
| 475 | struct fimd_context *ctx = get_fimd_context(dev); |
| 476 | unsigned int keycon0 = 0, keycon1 = 0; |
| 477 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 478 | keycon0 = ~(WxKEYCON0_KEYBL_EN | WxKEYCON0_KEYEN_F | |
| 479 | WxKEYCON0_DIRCON) | WxKEYCON0_COMPKEY(0); |
| 480 | |
| 481 | keycon1 = WxKEYCON1_COLVAL(0xffffffff); |
| 482 | |
| 483 | writel(keycon0, ctx->regs + WKEYCON0_BASE(win)); |
| 484 | writel(keycon1, ctx->regs + WKEYCON1_BASE(win)); |
| 485 | } |
| 486 | |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 487 | /** |
| 488 | * shadow_protect_win() - disable updating values from shadow registers at vsync |
| 489 | * |
| 490 | * @win: window to protect registers for |
| 491 | * @protect: 1 to protect (disable updates) |
| 492 | */ |
| 493 | static void fimd_shadow_protect_win(struct fimd_context *ctx, |
| 494 | int win, bool protect) |
| 495 | { |
| 496 | u32 reg, bits, val; |
| 497 | |
| 498 | if (ctx->driver_data->has_shadowcon) { |
| 499 | reg = SHADOWCON; |
| 500 | bits = SHADOWCON_WINx_PROTECT(win); |
| 501 | } else { |
| 502 | reg = PRTCON; |
| 503 | bits = PRTCON_PROTECT; |
| 504 | } |
| 505 | |
| 506 | val = readl(ctx->regs + reg); |
| 507 | if (protect) |
| 508 | val |= bits; |
| 509 | else |
| 510 | val &= ~bits; |
| 511 | writel(val, ctx->regs + reg); |
| 512 | } |
| 513 | |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 514 | static void fimd_win_commit(struct device *dev, int zpos) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 515 | { |
| 516 | struct fimd_context *ctx = get_fimd_context(dev); |
| 517 | struct fimd_win_data *win_data; |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 518 | int win = zpos; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 519 | unsigned long val, alpha, size; |
Joonyoung Shim | f56aad3 | 2012-12-14 15:48:23 +0900 | [diff] [blame] | 520 | unsigned int last_x; |
| 521 | unsigned int last_y; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 522 | |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 523 | if (ctx->suspended) |
| 524 | return; |
| 525 | |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 526 | if (win == DEFAULT_ZPOS) |
| 527 | win = ctx->default_win; |
| 528 | |
Krzysztof Kozlowski | 37b006e | 2013-05-27 11:56:26 +0200 | [diff] [blame] | 529 | if (win < 0 || win >= WINDOWS_NR) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 530 | return; |
| 531 | |
| 532 | win_data = &ctx->win_data[win]; |
| 533 | |
| 534 | /* |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 535 | * SHADOWCON/PRTCON register is used for enabling timing. |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 536 | * |
| 537 | * for example, once only width value of a register is set, |
| 538 | * if the dma is started then fimd hardware could malfunction so |
| 539 | * with protect window setting, the register fields with prefix '_F' |
| 540 | * wouldn't be updated at vsync also but updated once unprotect window |
| 541 | * is set. |
| 542 | */ |
| 543 | |
| 544 | /* protect windows */ |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 545 | fimd_shadow_protect_win(ctx, win, true); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 546 | |
| 547 | /* buffer start address */ |
Inki Dae | 2c87112 | 2011-11-12 15:23:32 +0900 | [diff] [blame] | 548 | val = (unsigned long)win_data->dma_addr; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 549 | writel(val, ctx->regs + VIDWx_BUF_START(win, 0)); |
| 550 | |
| 551 | /* buffer end address */ |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 552 | size = win_data->fb_width * win_data->ovl_height * (win_data->bpp >> 3); |
Inki Dae | 2c87112 | 2011-11-12 15:23:32 +0900 | [diff] [blame] | 553 | val = (unsigned long)(win_data->dma_addr + size); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 554 | writel(val, ctx->regs + VIDWx_BUF_END(win, 0)); |
| 555 | |
| 556 | DRM_DEBUG_KMS("start addr = 0x%lx, end addr = 0x%lx, size = 0x%lx\n", |
Inki Dae | 2c87112 | 2011-11-12 15:23:32 +0900 | [diff] [blame] | 557 | (unsigned long)win_data->dma_addr, val, size); |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 558 | DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n", |
| 559 | win_data->ovl_width, win_data->ovl_height); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 560 | |
| 561 | /* buffer size */ |
| 562 | val = VIDW_BUF_SIZE_OFFSET(win_data->buf_offsize) | |
Joonyoung Shim | ca555e5 | 2012-12-14 15:48:24 +0900 | [diff] [blame] | 563 | VIDW_BUF_SIZE_PAGEWIDTH(win_data->line_size) | |
| 564 | VIDW_BUF_SIZE_OFFSET_E(win_data->buf_offsize) | |
| 565 | VIDW_BUF_SIZE_PAGEWIDTH_E(win_data->line_size); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 566 | writel(val, ctx->regs + VIDWx_BUF_SIZE(win, 0)); |
| 567 | |
| 568 | /* OSD position */ |
| 569 | val = VIDOSDxA_TOPLEFT_X(win_data->offset_x) | |
Joonyoung Shim | ca555e5 | 2012-12-14 15:48:24 +0900 | [diff] [blame] | 570 | VIDOSDxA_TOPLEFT_Y(win_data->offset_y) | |
| 571 | VIDOSDxA_TOPLEFT_X_E(win_data->offset_x) | |
| 572 | VIDOSDxA_TOPLEFT_Y_E(win_data->offset_y); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 573 | writel(val, ctx->regs + VIDOSD_A(win)); |
| 574 | |
Joonyoung Shim | f56aad3 | 2012-12-14 15:48:23 +0900 | [diff] [blame] | 575 | last_x = win_data->offset_x + win_data->ovl_width; |
| 576 | if (last_x) |
| 577 | last_x--; |
| 578 | last_y = win_data->offset_y + win_data->ovl_height; |
| 579 | if (last_y) |
| 580 | last_y--; |
| 581 | |
Joonyoung Shim | ca555e5 | 2012-12-14 15:48:24 +0900 | [diff] [blame] | 582 | val = VIDOSDxB_BOTRIGHT_X(last_x) | VIDOSDxB_BOTRIGHT_Y(last_y) | |
| 583 | VIDOSDxB_BOTRIGHT_X_E(last_x) | VIDOSDxB_BOTRIGHT_Y_E(last_y); |
| 584 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 585 | writel(val, ctx->regs + VIDOSD_B(win)); |
| 586 | |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 587 | DRM_DEBUG_KMS("osd pos: tx = %d, ty = %d, bx = %d, by = %d\n", |
Joonyoung Shim | f56aad3 | 2012-12-14 15:48:23 +0900 | [diff] [blame] | 588 | win_data->offset_x, win_data->offset_y, last_x, last_y); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 589 | |
| 590 | /* hardware window 0 doesn't support alpha channel. */ |
| 591 | if (win != 0) { |
| 592 | /* OSD alpha */ |
| 593 | alpha = VIDISD14C_ALPHA1_R(0xf) | |
| 594 | VIDISD14C_ALPHA1_G(0xf) | |
| 595 | VIDISD14C_ALPHA1_B(0xf); |
| 596 | |
| 597 | writel(alpha, ctx->regs + VIDOSD_C(win)); |
| 598 | } |
| 599 | |
| 600 | /* OSD size */ |
| 601 | if (win != 3 && win != 4) { |
| 602 | u32 offset = VIDOSD_D(win); |
| 603 | if (win == 0) |
Leela Krishna Amudala | 0f10cf1 | 2013-03-07 23:28:52 -0500 | [diff] [blame] | 604 | offset = VIDOSD_C(win); |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 605 | val = win_data->ovl_width * win_data->ovl_height; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 606 | writel(val, ctx->regs + offset); |
| 607 | |
| 608 | DRM_DEBUG_KMS("osd size = 0x%x\n", (unsigned int)val); |
| 609 | } |
| 610 | |
| 611 | fimd_win_set_pixfmt(dev, win); |
| 612 | |
| 613 | /* hardware window 0 doesn't support color key. */ |
| 614 | if (win != 0) |
| 615 | fimd_win_set_colkey(dev, win); |
| 616 | |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 617 | /* wincon */ |
| 618 | val = readl(ctx->regs + WINCON(win)); |
| 619 | val |= WINCONx_ENWIN; |
| 620 | writel(val, ctx->regs + WINCON(win)); |
| 621 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 622 | /* Enable DMA channel and unprotect windows */ |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 623 | fimd_shadow_protect_win(ctx, win, false); |
| 624 | |
| 625 | if (ctx->driver_data->has_shadowcon) { |
| 626 | val = readl(ctx->regs + SHADOWCON); |
| 627 | val |= SHADOWCON_CHx_ENABLE(win); |
| 628 | writel(val, ctx->regs + SHADOWCON); |
| 629 | } |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 630 | |
| 631 | win_data->enabled = true; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 632 | } |
| 633 | |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 634 | static void fimd_win_disable(struct device *dev, int zpos) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 635 | { |
| 636 | struct fimd_context *ctx = get_fimd_context(dev); |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 637 | struct fimd_win_data *win_data; |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 638 | int win = zpos; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 639 | u32 val; |
| 640 | |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 641 | if (win == DEFAULT_ZPOS) |
| 642 | win = ctx->default_win; |
| 643 | |
Krzysztof Kozlowski | 37b006e | 2013-05-27 11:56:26 +0200 | [diff] [blame] | 644 | if (win < 0 || win >= WINDOWS_NR) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 645 | return; |
| 646 | |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 647 | win_data = &ctx->win_data[win]; |
| 648 | |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 649 | if (ctx->suspended) { |
| 650 | /* do not resume this window*/ |
| 651 | win_data->resume = false; |
| 652 | return; |
| 653 | } |
| 654 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 655 | /* protect windows */ |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 656 | fimd_shadow_protect_win(ctx, win, true); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 657 | |
| 658 | /* wincon */ |
| 659 | val = readl(ctx->regs + WINCON(win)); |
| 660 | val &= ~WINCONx_ENWIN; |
| 661 | writel(val, ctx->regs + WINCON(win)); |
| 662 | |
| 663 | /* unprotect windows */ |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 664 | if (ctx->driver_data->has_shadowcon) { |
| 665 | val = readl(ctx->regs + SHADOWCON); |
| 666 | val &= ~SHADOWCON_CHx_ENABLE(win); |
| 667 | writel(val, ctx->regs + SHADOWCON); |
| 668 | } |
| 669 | |
| 670 | fimd_shadow_protect_win(ctx, win, false); |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 671 | |
| 672 | win_data->enabled = false; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 673 | } |
| 674 | |
| 675 | static struct exynos_drm_overlay_ops fimd_overlay_ops = { |
| 676 | .mode_set = fimd_win_mode_set, |
| 677 | .commit = fimd_win_commit, |
| 678 | .disable = fimd_win_disable, |
| 679 | }; |
| 680 | |
Joonyoung Shim | 677e84c | 2012-04-05 20:49:27 +0900 | [diff] [blame] | 681 | static struct exynos_drm_manager fimd_manager = { |
| 682 | .pipe = -1, |
| 683 | .ops = &fimd_manager_ops, |
| 684 | .overlay_ops = &fimd_overlay_ops, |
| 685 | .display_ops = &fimd_display_ops, |
| 686 | }; |
| 687 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 688 | static irqreturn_t fimd_irq_handler(int irq, void *dev_id) |
| 689 | { |
| 690 | struct fimd_context *ctx = (struct fimd_context *)dev_id; |
| 691 | struct exynos_drm_subdrv *subdrv = &ctx->subdrv; |
| 692 | struct drm_device *drm_dev = subdrv->drm_dev; |
Joonyoung Shim | 677e84c | 2012-04-05 20:49:27 +0900 | [diff] [blame] | 693 | struct exynos_drm_manager *manager = subdrv->manager; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 694 | u32 val; |
| 695 | |
| 696 | val = readl(ctx->regs + VIDINTCON1); |
| 697 | |
| 698 | if (val & VIDINTCON1_INT_FRAME) |
| 699 | /* VSYNC interrupt */ |
| 700 | writel(VIDINTCON1_INT_FRAME, ctx->regs + VIDINTCON1); |
| 701 | |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 702 | /* check the crtc is detached already from encoder */ |
| 703 | if (manager->pipe < 0) |
| 704 | goto out; |
Inki Dae | 483b88f | 2011-11-11 21:28:00 +0900 | [diff] [blame] | 705 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 706 | drm_handle_vblank(drm_dev, manager->pipe); |
Rahul Sharma | 663d876 | 2013-01-03 05:44:04 -0500 | [diff] [blame] | 707 | exynos_drm_crtc_finish_pageflip(drm_dev, manager->pipe); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 708 | |
Prathyush K | 01ce113 | 2012-12-06 20:16:04 +0530 | [diff] [blame] | 709 | /* set wait vsync event to zero and wake up queue. */ |
| 710 | if (atomic_read(&ctx->wait_vsync_event)) { |
| 711 | atomic_set(&ctx->wait_vsync_event, 0); |
| 712 | DRM_WAKEUP(&ctx->wait_vsync_queue); |
| 713 | } |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 714 | out: |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 715 | return IRQ_HANDLED; |
| 716 | } |
| 717 | |
Inki Dae | 41c2434 | 2011-10-14 13:29:48 +0900 | [diff] [blame] | 718 | static int fimd_subdrv_probe(struct drm_device *drm_dev, struct device *dev) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 719 | { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 720 | /* |
| 721 | * enable drm irq mode. |
| 722 | * - with irq_enabled = 1, we can use the vblank feature. |
| 723 | * |
| 724 | * P.S. note that we wouldn't use drm irq handler but |
| 725 | * just specific driver own one instead because |
| 726 | * drm framework supports only one irq handler. |
| 727 | */ |
| 728 | drm_dev->irq_enabled = 1; |
| 729 | |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 730 | /* |
| 731 | * with vblank_disable_allowed = 1, vblank interrupt will be disabled |
| 732 | * by drm timer once a current process gives up ownership of |
| 733 | * vblank event.(after drm_vblank_put function is called) |
| 734 | */ |
| 735 | drm_dev->vblank_disable_allowed = 1; |
| 736 | |
Inki Dae | bcc5cd1 | 2012-10-19 17:16:36 +0900 | [diff] [blame] | 737 | /* attach this sub driver to iommu mapping if supported. */ |
| 738 | if (is_drm_iommu_supported(drm_dev)) |
| 739 | drm_iommu_attach_device(drm_dev, dev); |
| 740 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 741 | return 0; |
| 742 | } |
| 743 | |
Inki Dae | 29cb602 | 2012-09-05 14:12:06 +0900 | [diff] [blame] | 744 | static void fimd_subdrv_remove(struct drm_device *drm_dev, struct device *dev) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 745 | { |
Inki Dae | bcc5cd1 | 2012-10-19 17:16:36 +0900 | [diff] [blame] | 746 | /* detach this sub driver from iommu mapping if supported. */ |
| 747 | if (is_drm_iommu_supported(drm_dev)) |
| 748 | drm_iommu_detach_device(drm_dev, dev); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 749 | } |
| 750 | |
| 751 | static int fimd_calc_clkdiv(struct fimd_context *ctx, |
| 752 | struct fb_videomode *timing) |
| 753 | { |
| 754 | unsigned long clk = clk_get_rate(ctx->lcd_clk); |
| 755 | u32 retrace; |
| 756 | u32 clkdiv; |
| 757 | u32 best_framerate = 0; |
| 758 | u32 framerate; |
| 759 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 760 | retrace = timing->left_margin + timing->hsync_len + |
| 761 | timing->right_margin + timing->xres; |
| 762 | retrace *= timing->upper_margin + timing->vsync_len + |
| 763 | timing->lower_margin + timing->yres; |
| 764 | |
| 765 | /* default framerate is 60Hz */ |
| 766 | if (!timing->refresh) |
| 767 | timing->refresh = 60; |
| 768 | |
| 769 | clk /= retrace; |
| 770 | |
| 771 | for (clkdiv = 1; clkdiv < 0x100; clkdiv++) { |
| 772 | int tmp; |
| 773 | |
| 774 | /* get best framerate */ |
| 775 | framerate = clk / clkdiv; |
| 776 | tmp = timing->refresh - framerate; |
| 777 | if (tmp < 0) { |
| 778 | best_framerate = framerate; |
| 779 | continue; |
| 780 | } else { |
| 781 | if (!best_framerate) |
| 782 | best_framerate = framerate; |
| 783 | else if (tmp < (best_framerate - framerate)) |
| 784 | best_framerate = framerate; |
| 785 | break; |
| 786 | } |
| 787 | } |
| 788 | |
| 789 | return clkdiv; |
| 790 | } |
| 791 | |
| 792 | static void fimd_clear_win(struct fimd_context *ctx, int win) |
| 793 | { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 794 | writel(0, ctx->regs + WINCON(win)); |
| 795 | writel(0, ctx->regs + VIDOSD_A(win)); |
| 796 | writel(0, ctx->regs + VIDOSD_B(win)); |
| 797 | writel(0, ctx->regs + VIDOSD_C(win)); |
| 798 | |
| 799 | if (win == 1 || win == 2) |
| 800 | writel(0, ctx->regs + VIDOSD_D(win)); |
| 801 | |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 802 | fimd_shadow_protect_win(ctx, win, false); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 803 | } |
| 804 | |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 805 | static int fimd_clock(struct fimd_context *ctx, bool enable) |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 806 | { |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 807 | if (enable) { |
| 808 | int ret; |
| 809 | |
Vikas Sajjan | 11963a6 | 2013-04-23 17:19:50 +0530 | [diff] [blame] | 810 | ret = clk_prepare_enable(ctx->bus_clk); |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 811 | if (ret < 0) |
| 812 | return ret; |
| 813 | |
Vikas Sajjan | 11963a6 | 2013-04-23 17:19:50 +0530 | [diff] [blame] | 814 | ret = clk_prepare_enable(ctx->lcd_clk); |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 815 | if (ret < 0) { |
Vikas Sajjan | 11963a6 | 2013-04-23 17:19:50 +0530 | [diff] [blame] | 816 | clk_disable_unprepare(ctx->bus_clk); |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 817 | return ret; |
| 818 | } |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 819 | } else { |
Vikas Sajjan | 11963a6 | 2013-04-23 17:19:50 +0530 | [diff] [blame] | 820 | clk_disable_unprepare(ctx->lcd_clk); |
| 821 | clk_disable_unprepare(ctx->bus_clk); |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 822 | } |
| 823 | |
| 824 | return 0; |
| 825 | } |
| 826 | |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 827 | static void fimd_window_suspend(struct device *dev) |
| 828 | { |
| 829 | struct fimd_context *ctx = get_fimd_context(dev); |
| 830 | struct fimd_win_data *win_data; |
| 831 | int i; |
| 832 | |
| 833 | for (i = 0; i < WINDOWS_NR; i++) { |
| 834 | win_data = &ctx->win_data[i]; |
| 835 | win_data->resume = win_data->enabled; |
| 836 | fimd_win_disable(dev, i); |
| 837 | } |
| 838 | fimd_wait_for_vblank(dev); |
| 839 | } |
| 840 | |
| 841 | static void fimd_window_resume(struct device *dev) |
| 842 | { |
| 843 | struct fimd_context *ctx = get_fimd_context(dev); |
| 844 | struct fimd_win_data *win_data; |
| 845 | int i; |
| 846 | |
| 847 | for (i = 0; i < WINDOWS_NR; i++) { |
| 848 | win_data = &ctx->win_data[i]; |
| 849 | win_data->enabled = win_data->resume; |
| 850 | win_data->resume = false; |
| 851 | } |
| 852 | } |
| 853 | |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 854 | static int fimd_activate(struct fimd_context *ctx, bool enable) |
| 855 | { |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 856 | struct device *dev = ctx->subdrv.dev; |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 857 | if (enable) { |
| 858 | int ret; |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 859 | |
| 860 | ret = fimd_clock(ctx, true); |
| 861 | if (ret < 0) |
| 862 | return ret; |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 863 | |
| 864 | ctx->suspended = false; |
| 865 | |
| 866 | /* if vblank was enabled status, enable it again. */ |
| 867 | if (test_and_clear_bit(0, &ctx->irq_flags)) |
| 868 | fimd_enable_vblank(dev); |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 869 | |
| 870 | fimd_window_resume(dev); |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 871 | } else { |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 872 | fimd_window_suspend(dev); |
| 873 | |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 874 | fimd_clock(ctx, false); |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 875 | ctx->suspended = true; |
| 876 | } |
| 877 | |
| 878 | return 0; |
| 879 | } |
| 880 | |
Greg Kroah-Hartman | 56550d9 | 2012-12-21 15:09:25 -0800 | [diff] [blame] | 881 | static int fimd_probe(struct platform_device *pdev) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 882 | { |
| 883 | struct device *dev = &pdev->dev; |
| 884 | struct fimd_context *ctx; |
| 885 | struct exynos_drm_subdrv *subdrv; |
| 886 | struct exynos_drm_fimd_pdata *pdata; |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 887 | struct exynos_drm_panel_info *panel; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 888 | struct resource *res; |
| 889 | int win; |
| 890 | int ret = -EINVAL; |
| 891 | |
Seung-Woo Kim | d873ab9 | 2013-05-22 21:14:14 +0900 | [diff] [blame] | 892 | if (dev->of_node) { |
Vikas Sajjan | 7f4596f | 2013-03-07 12:15:21 +0530 | [diff] [blame] | 893 | pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); |
| 894 | if (!pdata) { |
| 895 | DRM_ERROR("memory allocation for pdata failed\n"); |
| 896 | return -ENOMEM; |
| 897 | } |
| 898 | |
| 899 | ret = of_get_fb_videomode(dev->of_node, &pdata->panel.timing, |
| 900 | OF_USE_NATIVE_MODE); |
| 901 | if (ret) { |
| 902 | DRM_ERROR("failed: of_get_fb_videomode() : %d\n", ret); |
| 903 | return ret; |
| 904 | } |
| 905 | } else { |
Seung-Woo Kim | d873ab9 | 2013-05-22 21:14:14 +0900 | [diff] [blame] | 906 | pdata = dev->platform_data; |
Vikas Sajjan | 7f4596f | 2013-03-07 12:15:21 +0530 | [diff] [blame] | 907 | if (!pdata) { |
| 908 | DRM_ERROR("no platform data specified\n"); |
| 909 | return -EINVAL; |
| 910 | } |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 911 | } |
| 912 | |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 913 | panel = &pdata->panel; |
| 914 | if (!panel) { |
| 915 | dev_err(dev, "panel is null.\n"); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 916 | return -EINVAL; |
| 917 | } |
| 918 | |
Seung-Woo Kim | d873ab9 | 2013-05-22 21:14:14 +0900 | [diff] [blame] | 919 | ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 920 | if (!ctx) |
| 921 | return -ENOMEM; |
| 922 | |
Sachin Kamat | a4d8de5 | 2012-11-26 09:47:14 +0530 | [diff] [blame] | 923 | ctx->bus_clk = devm_clk_get(dev, "fimd"); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 924 | if (IS_ERR(ctx->bus_clk)) { |
| 925 | dev_err(dev, "failed to get bus clock\n"); |
Sachin Kamat | a4d8de5 | 2012-11-26 09:47:14 +0530 | [diff] [blame] | 926 | return PTR_ERR(ctx->bus_clk); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 927 | } |
| 928 | |
Sachin Kamat | a4d8de5 | 2012-11-26 09:47:14 +0530 | [diff] [blame] | 929 | ctx->lcd_clk = devm_clk_get(dev, "sclk_fimd"); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 930 | if (IS_ERR(ctx->lcd_clk)) { |
| 931 | dev_err(dev, "failed to get lcd clock\n"); |
Sachin Kamat | a4d8de5 | 2012-11-26 09:47:14 +0530 | [diff] [blame] | 932 | return PTR_ERR(ctx->lcd_clk); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 933 | } |
| 934 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 935 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 936 | |
Seung-Woo Kim | d873ab9 | 2013-05-22 21:14:14 +0900 | [diff] [blame] | 937 | ctx->regs = devm_ioremap_resource(dev, res); |
Thierry Reding | d4ed602 | 2013-01-21 11:09:02 +0100 | [diff] [blame] | 938 | if (IS_ERR(ctx->regs)) |
| 939 | return PTR_ERR(ctx->regs); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 940 | |
Vikas Sajjan | 1977e6d | 2013-04-02 17:53:01 +0900 | [diff] [blame] | 941 | res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "vsync"); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 942 | if (!res) { |
| 943 | dev_err(dev, "irq request failed.\n"); |
Sachin Kamat | a4d8de5 | 2012-11-26 09:47:14 +0530 | [diff] [blame] | 944 | return -ENXIO; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 945 | } |
| 946 | |
| 947 | ctx->irq = res->start; |
| 948 | |
Seung-Woo Kim | d873ab9 | 2013-05-22 21:14:14 +0900 | [diff] [blame] | 949 | ret = devm_request_irq(dev, ctx->irq, fimd_irq_handler, |
Sachin Kamat | edc5726 | 2012-06-19 11:47:39 +0530 | [diff] [blame] | 950 | 0, "drm_fimd", ctx); |
| 951 | if (ret) { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 952 | dev_err(dev, "irq request failed.\n"); |
Sachin Kamat | a4d8de5 | 2012-11-26 09:47:14 +0530 | [diff] [blame] | 953 | return ret; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 954 | } |
| 955 | |
Tomasz Figa | 1887346 | 2013-05-01 21:02:26 +0200 | [diff] [blame] | 956 | ctx->driver_data = drm_fimd_get_driver_data(pdev); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 957 | ctx->vidcon0 = pdata->vidcon0; |
| 958 | ctx->vidcon1 = pdata->vidcon1; |
| 959 | ctx->default_win = pdata->default_win; |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 960 | ctx->panel = panel; |
Prathyush K | 01ce113 | 2012-12-06 20:16:04 +0530 | [diff] [blame] | 961 | DRM_INIT_WAITQUEUE(&ctx->wait_vsync_queue); |
| 962 | atomic_set(&ctx->wait_vsync_event, 0); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 963 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 964 | subdrv = &ctx->subdrv; |
| 965 | |
Joonyoung Shim | 677e84c | 2012-04-05 20:49:27 +0900 | [diff] [blame] | 966 | subdrv->dev = dev; |
| 967 | subdrv->manager = &fimd_manager; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 968 | subdrv->probe = fimd_subdrv_probe; |
| 969 | subdrv->remove = fimd_subdrv_remove; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 970 | |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 971 | mutex_init(&ctx->lock); |
| 972 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 973 | platform_set_drvdata(pdev, ctx); |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 974 | |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 975 | pm_runtime_enable(dev); |
| 976 | pm_runtime_get_sync(dev); |
| 977 | |
Marek Szyprowski | 0d8ce3a | 2012-03-08 10:28:56 +0900 | [diff] [blame] | 978 | ctx->clkdiv = fimd_calc_clkdiv(ctx, &panel->timing); |
| 979 | panel->timing.pixclock = clk_get_rate(ctx->lcd_clk) / ctx->clkdiv; |
| 980 | |
| 981 | DRM_DEBUG_KMS("pixel clock = %d, clkdiv = %d\n", |
| 982 | panel->timing.pixclock, ctx->clkdiv); |
| 983 | |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 984 | for (win = 0; win < WINDOWS_NR; win++) |
| 985 | fimd_clear_win(ctx, win); |
| 986 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 987 | exynos_drm_subdrv_register(subdrv); |
| 988 | |
| 989 | return 0; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 990 | } |
| 991 | |
Greg Kroah-Hartman | 56550d9 | 2012-12-21 15:09:25 -0800 | [diff] [blame] | 992 | static int fimd_remove(struct platform_device *pdev) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 993 | { |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 994 | struct device *dev = &pdev->dev; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 995 | struct fimd_context *ctx = platform_get_drvdata(pdev); |
| 996 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 997 | exynos_drm_subdrv_unregister(&ctx->subdrv); |
| 998 | |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 999 | if (ctx->suspended) |
| 1000 | goto out; |
| 1001 | |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1002 | pm_runtime_set_suspended(dev); |
| 1003 | pm_runtime_put_sync(dev); |
| 1004 | |
| 1005 | out: |
| 1006 | pm_runtime_disable(dev); |
| 1007 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1008 | return 0; |
| 1009 | } |
| 1010 | |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 1011 | #ifdef CONFIG_PM_SLEEP |
| 1012 | static int fimd_suspend(struct device *dev) |
| 1013 | { |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 1014 | struct fimd_context *ctx = get_fimd_context(dev); |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 1015 | |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 1016 | /* |
| 1017 | * do not use pm_runtime_suspend(). if pm_runtime_suspend() is |
| 1018 | * called here, an error would be returned by that interface |
| 1019 | * because the usage_count of pm runtime is more than 1. |
| 1020 | */ |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 1021 | if (!pm_runtime_suspended(dev)) |
| 1022 | return fimd_activate(ctx, false); |
| 1023 | |
| 1024 | return 0; |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 1025 | } |
| 1026 | |
| 1027 | static int fimd_resume(struct device *dev) |
| 1028 | { |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 1029 | struct fimd_context *ctx = get_fimd_context(dev); |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 1030 | |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 1031 | /* |
| 1032 | * if entered to sleep when lcd panel was on, the usage_count |
| 1033 | * of pm runtime would still be 1 so in this case, fimd driver |
| 1034 | * should be on directly not drawing on pm runtime interface. |
| 1035 | */ |
Prathyush K | 28998af | 2012-12-27 06:40:13 -0500 | [diff] [blame] | 1036 | if (!pm_runtime_suspended(dev)) { |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 1037 | int ret; |
| 1038 | |
| 1039 | ret = fimd_activate(ctx, true); |
| 1040 | if (ret < 0) |
| 1041 | return ret; |
| 1042 | |
| 1043 | /* |
| 1044 | * in case of dpms on(standby), fimd_apply function will |
| 1045 | * be called by encoder's dpms callback to update fimd's |
| 1046 | * registers but in case of sleep wakeup, it's not. |
| 1047 | * so fimd_apply function should be called at here. |
| 1048 | */ |
| 1049 | fimd_apply(dev); |
| 1050 | } |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 1051 | |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 1052 | return 0; |
| 1053 | } |
| 1054 | #endif |
| 1055 | |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1056 | #ifdef CONFIG_PM_RUNTIME |
| 1057 | static int fimd_runtime_suspend(struct device *dev) |
| 1058 | { |
| 1059 | struct fimd_context *ctx = get_fimd_context(dev); |
| 1060 | |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 1061 | return fimd_activate(ctx, false); |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1062 | } |
| 1063 | |
| 1064 | static int fimd_runtime_resume(struct device *dev) |
| 1065 | { |
| 1066 | struct fimd_context *ctx = get_fimd_context(dev); |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1067 | |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 1068 | return fimd_activate(ctx, true); |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1069 | } |
| 1070 | #endif |
| 1071 | |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 1072 | static struct platform_device_id fimd_driver_ids[] = { |
| 1073 | { |
Tomasz Figa | 725ddea | 2013-05-01 21:02:29 +0200 | [diff] [blame] | 1074 | .name = "s3c64xx-fb", |
| 1075 | .driver_data = (unsigned long)&s3c64xx_fimd_driver_data, |
| 1076 | }, { |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 1077 | .name = "exynos4-fb", |
| 1078 | .driver_data = (unsigned long)&exynos4_fimd_driver_data, |
| 1079 | }, { |
| 1080 | .name = "exynos5-fb", |
| 1081 | .driver_data = (unsigned long)&exynos5_fimd_driver_data, |
| 1082 | }, |
| 1083 | {}, |
| 1084 | }; |
| 1085 | MODULE_DEVICE_TABLE(platform, fimd_driver_ids); |
| 1086 | |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1087 | static const struct dev_pm_ops fimd_pm_ops = { |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 1088 | SET_SYSTEM_SLEEP_PM_OPS(fimd_suspend, fimd_resume) |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1089 | SET_RUNTIME_PM_OPS(fimd_runtime_suspend, fimd_runtime_resume, NULL) |
| 1090 | }; |
| 1091 | |
Joonyoung Shim | 132a5b9 | 2012-03-16 18:47:08 +0900 | [diff] [blame] | 1092 | struct platform_driver fimd_driver = { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1093 | .probe = fimd_probe, |
Greg Kroah-Hartman | 56550d9 | 2012-12-21 15:09:25 -0800 | [diff] [blame] | 1094 | .remove = fimd_remove, |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 1095 | .id_table = fimd_driver_ids, |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1096 | .driver = { |
| 1097 | .name = "exynos4-fb", |
| 1098 | .owner = THIS_MODULE, |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1099 | .pm = &fimd_pm_ops, |
Joonyoung Shim | d636ead | 2012-12-14 15:48:25 +0900 | [diff] [blame] | 1100 | .of_match_table = of_match_ptr(fimd_driver_dt_match), |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1101 | }, |
| 1102 | }; |