Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Toshiba TC6393XB SoC support |
| 3 | * |
| 4 | * Copyright(c) 2005-2006 Chris Humbert |
| 5 | * Copyright(c) 2005 Dirk Opfer |
| 6 | * Copyright(c) 2005 Ian Molton <spyro@f2s.com> |
| 7 | * Copyright(c) 2007 Dmitry Baryshkov |
| 8 | * |
| 9 | * Based on code written by Sharp/Lineo for 2.4 kernels |
| 10 | * Based on locomo.c |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License version 2 as |
| 14 | * published by the Free Software Foundation. |
| 15 | */ |
| 16 | |
| 17 | #include <linux/kernel.h> |
| 18 | #include <linux/module.h> |
| 19 | #include <linux/io.h> |
| 20 | #include <linux/irq.h> |
| 21 | #include <linux/platform_device.h> |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 22 | #include <linux/clk.h> |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 23 | #include <linux/err.h> |
Dmitry Baryshkov | f024ff1 | 2008-06-27 10:37:57 +0100 | [diff] [blame] | 24 | #include <linux/mfd/core.h> |
| 25 | #include <linux/mfd/tmio.h> |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 26 | #include <linux/mfd/tc6393xb.h> |
| 27 | #include <linux/gpio.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 28 | #include <linux/slab.h> |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 29 | |
| 30 | #define SCR_REVID 0x08 /* b Revision ID */ |
| 31 | #define SCR_ISR 0x50 /* b Interrupt Status */ |
| 32 | #define SCR_IMR 0x52 /* b Interrupt Mask */ |
| 33 | #define SCR_IRR 0x54 /* b Interrupt Routing */ |
| 34 | #define SCR_GPER 0x60 /* w GP Enable */ |
| 35 | #define SCR_GPI_SR(i) (0x64 + (i)) /* b3 GPI Status */ |
| 36 | #define SCR_GPI_IMR(i) (0x68 + (i)) /* b3 GPI INT Mask */ |
| 37 | #define SCR_GPI_EDER(i) (0x6c + (i)) /* b3 GPI Edge Detect Enable */ |
| 38 | #define SCR_GPI_LIR(i) (0x70 + (i)) /* b3 GPI Level Invert */ |
| 39 | #define SCR_GPO_DSR(i) (0x78 + (i)) /* b3 GPO Data Set */ |
| 40 | #define SCR_GPO_DOECR(i) (0x7c + (i)) /* b3 GPO Data OE Control */ |
| 41 | #define SCR_GP_IARCR(i) (0x80 + (i)) /* b3 GP Internal Active Register Control */ |
| 42 | #define SCR_GP_IARLCR(i) (0x84 + (i)) /* b3 GP INTERNAL Active Register Level Control */ |
| 43 | #define SCR_GPI_BCR(i) (0x88 + (i)) /* b3 GPI Buffer Control */ |
| 44 | #define SCR_GPA_IARCR 0x8c /* w GPa Internal Active Register Control */ |
| 45 | #define SCR_GPA_IARLCR 0x90 /* w GPa Internal Active Register Level Control */ |
| 46 | #define SCR_GPA_BCR 0x94 /* w GPa Buffer Control */ |
| 47 | #define SCR_CCR 0x98 /* w Clock Control */ |
| 48 | #define SCR_PLL2CR 0x9a /* w PLL2 Control */ |
| 49 | #define SCR_PLL1CR 0x9c /* l PLL1 Control */ |
| 50 | #define SCR_DIARCR 0xa0 /* b Device Internal Active Register Control */ |
| 51 | #define SCR_DBOCR 0xa1 /* b Device Buffer Off Control */ |
| 52 | #define SCR_FER 0xe0 /* b Function Enable */ |
| 53 | #define SCR_MCR 0xe4 /* w Mode Control */ |
| 54 | #define SCR_CONFIG 0xfc /* b Configuration Control */ |
| 55 | #define SCR_DEBUG 0xff /* b Debug */ |
| 56 | |
| 57 | #define SCR_CCR_CK32K BIT(0) |
| 58 | #define SCR_CCR_USBCK BIT(1) |
| 59 | #define SCR_CCR_UNK1 BIT(4) |
| 60 | #define SCR_CCR_MCLK_MASK (7 << 8) |
| 61 | #define SCR_CCR_MCLK_OFF (0 << 8) |
| 62 | #define SCR_CCR_MCLK_12 (1 << 8) |
| 63 | #define SCR_CCR_MCLK_24 (2 << 8) |
| 64 | #define SCR_CCR_MCLK_48 (3 << 8) |
| 65 | #define SCR_CCR_HCLK_MASK (3 << 12) |
| 66 | #define SCR_CCR_HCLK_24 (0 << 12) |
| 67 | #define SCR_CCR_HCLK_48 (1 << 12) |
| 68 | |
| 69 | #define SCR_FER_USBEN BIT(0) /* USB host enable */ |
| 70 | #define SCR_FER_LCDCVEN BIT(1) /* polysilicon TFT enable */ |
| 71 | #define SCR_FER_SLCDEN BIT(2) /* SLCD enable */ |
| 72 | |
| 73 | #define SCR_MCR_RDY_MASK (3 << 0) |
| 74 | #define SCR_MCR_RDY_OPENDRAIN (0 << 0) |
| 75 | #define SCR_MCR_RDY_TRISTATE (1 << 0) |
| 76 | #define SCR_MCR_RDY_PUSHPULL (2 << 0) |
| 77 | #define SCR_MCR_RDY_UNK BIT(2) |
| 78 | #define SCR_MCR_RDY_EN BIT(3) |
| 79 | #define SCR_MCR_INT_MASK (3 << 4) |
| 80 | #define SCR_MCR_INT_OPENDRAIN (0 << 4) |
| 81 | #define SCR_MCR_INT_TRISTATE (1 << 4) |
| 82 | #define SCR_MCR_INT_PUSHPULL (2 << 4) |
| 83 | #define SCR_MCR_INT_UNK BIT(6) |
| 84 | #define SCR_MCR_INT_EN BIT(7) |
| 85 | /* bits 8 - 16 are unknown */ |
| 86 | |
| 87 | #define TC_GPIO_BIT(i) (1 << (i & 0x7)) |
| 88 | |
| 89 | /*--------------------------------------------------------------------------*/ |
| 90 | |
| 91 | struct tc6393xb { |
| 92 | void __iomem *scr; |
| 93 | |
| 94 | struct gpio_chip gpio; |
| 95 | |
| 96 | struct clk *clk; /* 3,6 Mhz */ |
| 97 | |
| 98 | spinlock_t lock; /* protects RMW cycles */ |
| 99 | |
| 100 | struct { |
| 101 | u8 fer; |
| 102 | u16 ccr; |
| 103 | u8 gpi_bcr[3]; |
| 104 | u8 gpo_dsr[3]; |
| 105 | u8 gpo_doecr[3]; |
| 106 | } suspend_state; |
| 107 | |
| 108 | struct resource rscr; |
| 109 | struct resource *iomem; |
| 110 | int irq; |
| 111 | int irq_base; |
| 112 | }; |
| 113 | |
Dmitry Baryshkov | f024ff1 | 2008-06-27 10:37:57 +0100 | [diff] [blame] | 114 | enum { |
| 115 | TC6393XB_CELL_NAND, |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 116 | TC6393XB_CELL_MMC, |
Dmitry Baryshkov | 51a5562 | 2008-10-03 20:11:36 +0200 | [diff] [blame] | 117 | TC6393XB_CELL_OHCI, |
Dmitry Baryshkov | 9e78cfe | 2008-10-04 00:50:36 +0200 | [diff] [blame] | 118 | TC6393XB_CELL_FB, |
Dmitry Baryshkov | f024ff1 | 2008-06-27 10:37:57 +0100 | [diff] [blame] | 119 | }; |
| 120 | |
| 121 | /*--------------------------------------------------------------------------*/ |
| 122 | |
| 123 | static int tc6393xb_nand_enable(struct platform_device *nand) |
| 124 | { |
| 125 | struct platform_device *dev = to_platform_device(nand->dev.parent); |
| 126 | struct tc6393xb *tc6393xb = platform_get_drvdata(dev); |
| 127 | unsigned long flags; |
| 128 | |
| 129 | spin_lock_irqsave(&tc6393xb->lock, flags); |
| 130 | |
| 131 | /* SMD buffer on */ |
| 132 | dev_dbg(&dev->dev, "SMD buffer on\n"); |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 133 | tmio_iowrite8(0xff, tc6393xb->scr + SCR_GPI_BCR(1)); |
Dmitry Baryshkov | f024ff1 | 2008-06-27 10:37:57 +0100 | [diff] [blame] | 134 | |
| 135 | spin_unlock_irqrestore(&tc6393xb->lock, flags); |
| 136 | |
| 137 | return 0; |
| 138 | } |
| 139 | |
| 140 | static struct resource __devinitdata tc6393xb_nand_resources[] = { |
| 141 | { |
Dmitry Baryshkov | f024ff1 | 2008-06-27 10:37:57 +0100 | [diff] [blame] | 142 | .start = 0x1000, |
| 143 | .end = 0x1007, |
| 144 | .flags = IORESOURCE_MEM, |
| 145 | }, |
| 146 | { |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 147 | .start = 0x0100, |
| 148 | .end = 0x01ff, |
| 149 | .flags = IORESOURCE_MEM, |
| 150 | }, |
| 151 | { |
Dmitry Baryshkov | f024ff1 | 2008-06-27 10:37:57 +0100 | [diff] [blame] | 152 | .start = IRQ_TC6393_NAND, |
| 153 | .end = IRQ_TC6393_NAND, |
| 154 | .flags = IORESOURCE_IRQ, |
| 155 | }, |
| 156 | }; |
| 157 | |
Marek Vasut | 7745cc8 | 2010-10-10 03:55:43 +0200 | [diff] [blame] | 158 | static struct resource tc6393xb_mmc_resources[] = { |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 159 | { |
| 160 | .start = 0x800, |
| 161 | .end = 0x9ff, |
| 162 | .flags = IORESOURCE_MEM, |
| 163 | }, |
| 164 | { |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 165 | .start = IRQ_TC6393_MMC, |
| 166 | .end = IRQ_TC6393_MMC, |
| 167 | .flags = IORESOURCE_IRQ, |
| 168 | }, |
| 169 | }; |
| 170 | |
Tobias Klauser | 3446d4b | 2009-02-17 10:11:42 +0100 | [diff] [blame] | 171 | static const struct resource tc6393xb_ohci_resources[] = { |
Dmitry Baryshkov | 51a5562 | 2008-10-03 20:11:36 +0200 | [diff] [blame] | 172 | { |
| 173 | .start = 0x3000, |
| 174 | .end = 0x31ff, |
| 175 | .flags = IORESOURCE_MEM, |
| 176 | }, |
| 177 | { |
| 178 | .start = 0x0300, |
| 179 | .end = 0x03ff, |
| 180 | .flags = IORESOURCE_MEM, |
| 181 | }, |
| 182 | { |
| 183 | .start = 0x010000, |
| 184 | .end = 0x017fff, |
| 185 | .flags = IORESOURCE_MEM, |
| 186 | }, |
| 187 | { |
| 188 | .start = 0x018000, |
| 189 | .end = 0x01ffff, |
| 190 | .flags = IORESOURCE_MEM, |
| 191 | }, |
| 192 | { |
| 193 | .start = IRQ_TC6393_OHCI, |
| 194 | .end = IRQ_TC6393_OHCI, |
| 195 | .flags = IORESOURCE_IRQ, |
| 196 | }, |
| 197 | }; |
| 198 | |
Dmitry Baryshkov | 9e78cfe | 2008-10-04 00:50:36 +0200 | [diff] [blame] | 199 | static struct resource __devinitdata tc6393xb_fb_resources[] = { |
| 200 | { |
| 201 | .start = 0x5000, |
| 202 | .end = 0x51ff, |
| 203 | .flags = IORESOURCE_MEM, |
| 204 | }, |
| 205 | { |
| 206 | .start = 0x0500, |
| 207 | .end = 0x05ff, |
| 208 | .flags = IORESOURCE_MEM, |
| 209 | }, |
| 210 | { |
| 211 | .start = 0x100000, |
| 212 | .end = 0x1fffff, |
| 213 | .flags = IORESOURCE_MEM, |
| 214 | }, |
| 215 | { |
| 216 | .start = IRQ_TC6393_FB, |
| 217 | .end = IRQ_TC6393_FB, |
| 218 | .flags = IORESOURCE_IRQ, |
| 219 | }, |
| 220 | }; |
| 221 | |
Dmitry Baryshkov | 51a5562 | 2008-10-03 20:11:36 +0200 | [diff] [blame] | 222 | static int tc6393xb_ohci_enable(struct platform_device *dev) |
| 223 | { |
| 224 | struct tc6393xb *tc6393xb = dev_get_drvdata(dev->dev.parent); |
| 225 | unsigned long flags; |
| 226 | u16 ccr; |
| 227 | u8 fer; |
| 228 | |
| 229 | spin_lock_irqsave(&tc6393xb->lock, flags); |
| 230 | |
| 231 | ccr = tmio_ioread16(tc6393xb->scr + SCR_CCR); |
| 232 | ccr |= SCR_CCR_USBCK; |
| 233 | tmio_iowrite16(ccr, tc6393xb->scr + SCR_CCR); |
| 234 | |
| 235 | fer = tmio_ioread8(tc6393xb->scr + SCR_FER); |
| 236 | fer |= SCR_FER_USBEN; |
| 237 | tmio_iowrite8(fer, tc6393xb->scr + SCR_FER); |
| 238 | |
| 239 | spin_unlock_irqrestore(&tc6393xb->lock, flags); |
| 240 | |
| 241 | return 0; |
| 242 | } |
| 243 | |
| 244 | static int tc6393xb_ohci_disable(struct platform_device *dev) |
| 245 | { |
| 246 | struct tc6393xb *tc6393xb = dev_get_drvdata(dev->dev.parent); |
| 247 | unsigned long flags; |
| 248 | u16 ccr; |
| 249 | u8 fer; |
| 250 | |
| 251 | spin_lock_irqsave(&tc6393xb->lock, flags); |
| 252 | |
| 253 | fer = tmio_ioread8(tc6393xb->scr + SCR_FER); |
| 254 | fer &= ~SCR_FER_USBEN; |
| 255 | tmio_iowrite8(fer, tc6393xb->scr + SCR_FER); |
| 256 | |
| 257 | ccr = tmio_ioread16(tc6393xb->scr + SCR_CCR); |
| 258 | ccr &= ~SCR_CCR_USBCK; |
| 259 | tmio_iowrite16(ccr, tc6393xb->scr + SCR_CCR); |
| 260 | |
| 261 | spin_unlock_irqrestore(&tc6393xb->lock, flags); |
| 262 | |
| 263 | return 0; |
| 264 | } |
| 265 | |
Dmitry Baryshkov | 9e78cfe | 2008-10-04 00:50:36 +0200 | [diff] [blame] | 266 | static int tc6393xb_fb_enable(struct platform_device *dev) |
| 267 | { |
| 268 | struct tc6393xb *tc6393xb = dev_get_drvdata(dev->dev.parent); |
| 269 | unsigned long flags; |
| 270 | u16 ccr; |
| 271 | |
| 272 | spin_lock_irqsave(&tc6393xb->lock, flags); |
| 273 | |
| 274 | ccr = tmio_ioread16(tc6393xb->scr + SCR_CCR); |
| 275 | ccr &= ~SCR_CCR_MCLK_MASK; |
| 276 | ccr |= SCR_CCR_MCLK_48; |
| 277 | tmio_iowrite16(ccr, tc6393xb->scr + SCR_CCR); |
| 278 | |
| 279 | spin_unlock_irqrestore(&tc6393xb->lock, flags); |
| 280 | |
| 281 | return 0; |
| 282 | } |
| 283 | |
| 284 | static int tc6393xb_fb_disable(struct platform_device *dev) |
| 285 | { |
| 286 | struct tc6393xb *tc6393xb = dev_get_drvdata(dev->dev.parent); |
| 287 | unsigned long flags; |
| 288 | u16 ccr; |
| 289 | |
| 290 | spin_lock_irqsave(&tc6393xb->lock, flags); |
| 291 | |
| 292 | ccr = tmio_ioread16(tc6393xb->scr + SCR_CCR); |
| 293 | ccr &= ~SCR_CCR_MCLK_MASK; |
| 294 | ccr |= SCR_CCR_MCLK_OFF; |
| 295 | tmio_iowrite16(ccr, tc6393xb->scr + SCR_CCR); |
| 296 | |
| 297 | spin_unlock_irqrestore(&tc6393xb->lock, flags); |
| 298 | |
| 299 | return 0; |
| 300 | } |
| 301 | |
| 302 | int tc6393xb_lcd_set_power(struct platform_device *fb, bool on) |
| 303 | { |
| 304 | struct platform_device *dev = to_platform_device(fb->dev.parent); |
| 305 | struct tc6393xb *tc6393xb = platform_get_drvdata(dev); |
| 306 | u8 fer; |
| 307 | unsigned long flags; |
| 308 | |
| 309 | spin_lock_irqsave(&tc6393xb->lock, flags); |
| 310 | |
| 311 | fer = ioread8(tc6393xb->scr + SCR_FER); |
| 312 | if (on) |
| 313 | fer |= SCR_FER_SLCDEN; |
| 314 | else |
| 315 | fer &= ~SCR_FER_SLCDEN; |
| 316 | iowrite8(fer, tc6393xb->scr + SCR_FER); |
| 317 | |
| 318 | spin_unlock_irqrestore(&tc6393xb->lock, flags); |
| 319 | |
| 320 | return 0; |
| 321 | } |
| 322 | EXPORT_SYMBOL(tc6393xb_lcd_set_power); |
| 323 | |
| 324 | int tc6393xb_lcd_mode(struct platform_device *fb, |
| 325 | const struct fb_videomode *mode) { |
| 326 | struct platform_device *dev = to_platform_device(fb->dev.parent); |
| 327 | struct tc6393xb *tc6393xb = platform_get_drvdata(dev); |
| 328 | unsigned long flags; |
| 329 | |
| 330 | spin_lock_irqsave(&tc6393xb->lock, flags); |
| 331 | |
| 332 | iowrite16(mode->pixclock, tc6393xb->scr + SCR_PLL1CR + 0); |
| 333 | iowrite16(mode->pixclock >> 16, tc6393xb->scr + SCR_PLL1CR + 2); |
| 334 | |
| 335 | spin_unlock_irqrestore(&tc6393xb->lock, flags); |
| 336 | |
| 337 | return 0; |
| 338 | } |
| 339 | EXPORT_SYMBOL(tc6393xb_lcd_mode); |
| 340 | |
Ian Molton | 64e8867 | 2010-01-06 13:51:48 +0100 | [diff] [blame] | 341 | static int tc6393xb_mmc_enable(struct platform_device *mmc) |
| 342 | { |
| 343 | struct platform_device *dev = to_platform_device(mmc->dev.parent); |
| 344 | struct tc6393xb *tc6393xb = platform_get_drvdata(dev); |
| 345 | |
| 346 | tmio_core_mmc_enable(tc6393xb->scr + 0x200, 0, |
| 347 | tc6393xb_mmc_resources[0].start & 0xfffe); |
| 348 | |
| 349 | return 0; |
| 350 | } |
| 351 | |
| 352 | static int tc6393xb_mmc_resume(struct platform_device *mmc) |
| 353 | { |
| 354 | struct platform_device *dev = to_platform_device(mmc->dev.parent); |
| 355 | struct tc6393xb *tc6393xb = platform_get_drvdata(dev); |
| 356 | |
| 357 | tmio_core_mmc_resume(tc6393xb->scr + 0x200, 0, |
| 358 | tc6393xb_mmc_resources[0].start & 0xfffe); |
| 359 | |
| 360 | return 0; |
| 361 | } |
| 362 | |
| 363 | static void tc6393xb_mmc_pwr(struct platform_device *mmc, int state) |
| 364 | { |
| 365 | struct platform_device *dev = to_platform_device(mmc->dev.parent); |
| 366 | struct tc6393xb *tc6393xb = platform_get_drvdata(dev); |
| 367 | |
| 368 | tmio_core_mmc_pwr(tc6393xb->scr + 0x200, 0, state); |
| 369 | } |
| 370 | |
| 371 | static void tc6393xb_mmc_clk_div(struct platform_device *mmc, int state) |
| 372 | { |
| 373 | struct platform_device *dev = to_platform_device(mmc->dev.parent); |
| 374 | struct tc6393xb *tc6393xb = platform_get_drvdata(dev); |
| 375 | |
| 376 | tmio_core_mmc_clk_div(tc6393xb->scr + 0x200, 0, state); |
| 377 | } |
| 378 | |
| 379 | static struct tmio_mmc_data tc6393xb_mmc_data = { |
| 380 | .hclk = 24000000, |
| 381 | .set_pwr = tc6393xb_mmc_pwr, |
| 382 | .set_clk_div = tc6393xb_mmc_clk_div, |
| 383 | }; |
| 384 | |
Dmitry Baryshkov | f024ff1 | 2008-06-27 10:37:57 +0100 | [diff] [blame] | 385 | static struct mfd_cell __devinitdata tc6393xb_cells[] = { |
| 386 | [TC6393XB_CELL_NAND] = { |
| 387 | .name = "tmio-nand", |
| 388 | .enable = tc6393xb_nand_enable, |
| 389 | .num_resources = ARRAY_SIZE(tc6393xb_nand_resources), |
| 390 | .resources = tc6393xb_nand_resources, |
| 391 | }, |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 392 | [TC6393XB_CELL_MMC] = { |
| 393 | .name = "tmio-mmc", |
Ian Molton | 64e8867 | 2010-01-06 13:51:48 +0100 | [diff] [blame] | 394 | .enable = tc6393xb_mmc_enable, |
| 395 | .resume = tc6393xb_mmc_resume, |
Andres Salomon | 4f95bf4 | 2011-02-17 19:07:29 -0800 | [diff] [blame] | 396 | .mfd_data = &tc6393xb_mmc_data, |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 397 | .num_resources = ARRAY_SIZE(tc6393xb_mmc_resources), |
| 398 | .resources = tc6393xb_mmc_resources, |
| 399 | }, |
Dmitry Baryshkov | 51a5562 | 2008-10-03 20:11:36 +0200 | [diff] [blame] | 400 | [TC6393XB_CELL_OHCI] = { |
| 401 | .name = "tmio-ohci", |
| 402 | .num_resources = ARRAY_SIZE(tc6393xb_ohci_resources), |
| 403 | .resources = tc6393xb_ohci_resources, |
| 404 | .enable = tc6393xb_ohci_enable, |
| 405 | .suspend = tc6393xb_ohci_disable, |
| 406 | .resume = tc6393xb_ohci_enable, |
| 407 | .disable = tc6393xb_ohci_disable, |
| 408 | }, |
Dmitry Baryshkov | 9e78cfe | 2008-10-04 00:50:36 +0200 | [diff] [blame] | 409 | [TC6393XB_CELL_FB] = { |
| 410 | .name = "tmio-fb", |
| 411 | .num_resources = ARRAY_SIZE(tc6393xb_fb_resources), |
| 412 | .resources = tc6393xb_fb_resources, |
| 413 | .enable = tc6393xb_fb_enable, |
| 414 | .suspend = tc6393xb_fb_disable, |
| 415 | .resume = tc6393xb_fb_enable, |
| 416 | .disable = tc6393xb_fb_disable, |
| 417 | }, |
Dmitry Baryshkov | f024ff1 | 2008-06-27 10:37:57 +0100 | [diff] [blame] | 418 | }; |
| 419 | |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 420 | /*--------------------------------------------------------------------------*/ |
| 421 | |
| 422 | static int tc6393xb_gpio_get(struct gpio_chip *chip, |
| 423 | unsigned offset) |
| 424 | { |
| 425 | struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio); |
| 426 | |
| 427 | /* XXX: does dsr also represent inputs? */ |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 428 | return tmio_ioread8(tc6393xb->scr + SCR_GPO_DSR(offset / 8)) |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 429 | & TC_GPIO_BIT(offset); |
| 430 | } |
| 431 | |
| 432 | static void __tc6393xb_gpio_set(struct gpio_chip *chip, |
| 433 | unsigned offset, int value) |
| 434 | { |
| 435 | struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio); |
| 436 | u8 dsr; |
| 437 | |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 438 | dsr = tmio_ioread8(tc6393xb->scr + SCR_GPO_DSR(offset / 8)); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 439 | if (value) |
| 440 | dsr |= TC_GPIO_BIT(offset); |
| 441 | else |
| 442 | dsr &= ~TC_GPIO_BIT(offset); |
| 443 | |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 444 | tmio_iowrite8(dsr, tc6393xb->scr + SCR_GPO_DSR(offset / 8)); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 445 | } |
| 446 | |
| 447 | static void tc6393xb_gpio_set(struct gpio_chip *chip, |
| 448 | unsigned offset, int value) |
| 449 | { |
| 450 | struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio); |
| 451 | unsigned long flags; |
| 452 | |
| 453 | spin_lock_irqsave(&tc6393xb->lock, flags); |
| 454 | |
| 455 | __tc6393xb_gpio_set(chip, offset, value); |
| 456 | |
| 457 | spin_unlock_irqrestore(&tc6393xb->lock, flags); |
| 458 | } |
| 459 | |
| 460 | static int tc6393xb_gpio_direction_input(struct gpio_chip *chip, |
| 461 | unsigned offset) |
| 462 | { |
| 463 | struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio); |
| 464 | unsigned long flags; |
| 465 | u8 doecr; |
| 466 | |
| 467 | spin_lock_irqsave(&tc6393xb->lock, flags); |
| 468 | |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 469 | doecr = tmio_ioread8(tc6393xb->scr + SCR_GPO_DOECR(offset / 8)); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 470 | doecr &= ~TC_GPIO_BIT(offset); |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 471 | tmio_iowrite8(doecr, tc6393xb->scr + SCR_GPO_DOECR(offset / 8)); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 472 | |
| 473 | spin_unlock_irqrestore(&tc6393xb->lock, flags); |
| 474 | |
| 475 | return 0; |
| 476 | } |
| 477 | |
| 478 | static int tc6393xb_gpio_direction_output(struct gpio_chip *chip, |
| 479 | unsigned offset, int value) |
| 480 | { |
| 481 | struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio); |
| 482 | unsigned long flags; |
| 483 | u8 doecr; |
| 484 | |
| 485 | spin_lock_irqsave(&tc6393xb->lock, flags); |
| 486 | |
| 487 | __tc6393xb_gpio_set(chip, offset, value); |
| 488 | |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 489 | doecr = tmio_ioread8(tc6393xb->scr + SCR_GPO_DOECR(offset / 8)); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 490 | doecr |= TC_GPIO_BIT(offset); |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 491 | tmio_iowrite8(doecr, tc6393xb->scr + SCR_GPO_DOECR(offset / 8)); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 492 | |
| 493 | spin_unlock_irqrestore(&tc6393xb->lock, flags); |
| 494 | |
| 495 | return 0; |
| 496 | } |
| 497 | |
| 498 | static int tc6393xb_register_gpio(struct tc6393xb *tc6393xb, int gpio_base) |
| 499 | { |
| 500 | tc6393xb->gpio.label = "tc6393xb"; |
| 501 | tc6393xb->gpio.base = gpio_base; |
| 502 | tc6393xb->gpio.ngpio = 16; |
| 503 | tc6393xb->gpio.set = tc6393xb_gpio_set; |
| 504 | tc6393xb->gpio.get = tc6393xb_gpio_get; |
| 505 | tc6393xb->gpio.direction_input = tc6393xb_gpio_direction_input; |
| 506 | tc6393xb->gpio.direction_output = tc6393xb_gpio_direction_output; |
| 507 | |
| 508 | return gpiochip_add(&tc6393xb->gpio); |
| 509 | } |
| 510 | |
| 511 | /*--------------------------------------------------------------------------*/ |
| 512 | |
| 513 | static void |
| 514 | tc6393xb_irq(unsigned int irq, struct irq_desc *desc) |
| 515 | { |
Thomas Gleixner | d5bb122 | 2011-03-25 11:12:32 +0000 | [diff] [blame] | 516 | struct tc6393xb *tc6393xb = irq_get_handler_data(irq); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 517 | unsigned int isr; |
| 518 | unsigned int i, irq_base; |
| 519 | |
| 520 | irq_base = tc6393xb->irq_base; |
| 521 | |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 522 | while ((isr = tmio_ioread8(tc6393xb->scr + SCR_ISR) & |
| 523 | ~tmio_ioread8(tc6393xb->scr + SCR_IMR))) |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 524 | for (i = 0; i < TC6393XB_NR_IRQS; i++) { |
| 525 | if (isr & (1 << i)) |
| 526 | generic_handle_irq(irq_base + i); |
| 527 | } |
| 528 | } |
| 529 | |
Mark Brown | 01af22e | 2010-12-12 12:34:04 +0000 | [diff] [blame] | 530 | static void tc6393xb_irq_ack(struct irq_data *data) |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 531 | { |
| 532 | } |
| 533 | |
Mark Brown | 01af22e | 2010-12-12 12:34:04 +0000 | [diff] [blame] | 534 | static void tc6393xb_irq_mask(struct irq_data *data) |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 535 | { |
Mark Brown | 01af22e | 2010-12-12 12:34:04 +0000 | [diff] [blame] | 536 | struct tc6393xb *tc6393xb = irq_data_get_irq_chip_data(data); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 537 | unsigned long flags; |
| 538 | u8 imr; |
| 539 | |
| 540 | spin_lock_irqsave(&tc6393xb->lock, flags); |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 541 | imr = tmio_ioread8(tc6393xb->scr + SCR_IMR); |
Mark Brown | 01af22e | 2010-12-12 12:34:04 +0000 | [diff] [blame] | 542 | imr |= 1 << (data->irq - tc6393xb->irq_base); |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 543 | tmio_iowrite8(imr, tc6393xb->scr + SCR_IMR); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 544 | spin_unlock_irqrestore(&tc6393xb->lock, flags); |
| 545 | } |
| 546 | |
Mark Brown | 01af22e | 2010-12-12 12:34:04 +0000 | [diff] [blame] | 547 | static void tc6393xb_irq_unmask(struct irq_data *data) |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 548 | { |
Mark Brown | 01af22e | 2010-12-12 12:34:04 +0000 | [diff] [blame] | 549 | struct tc6393xb *tc6393xb = irq_data_get_irq_chip_data(data); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 550 | unsigned long flags; |
| 551 | u8 imr; |
| 552 | |
| 553 | spin_lock_irqsave(&tc6393xb->lock, flags); |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 554 | imr = tmio_ioread8(tc6393xb->scr + SCR_IMR); |
Mark Brown | 01af22e | 2010-12-12 12:34:04 +0000 | [diff] [blame] | 555 | imr &= ~(1 << (data->irq - tc6393xb->irq_base)); |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 556 | tmio_iowrite8(imr, tc6393xb->scr + SCR_IMR); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 557 | spin_unlock_irqrestore(&tc6393xb->lock, flags); |
| 558 | } |
| 559 | |
| 560 | static struct irq_chip tc6393xb_chip = { |
Mark Brown | 01af22e | 2010-12-12 12:34:04 +0000 | [diff] [blame] | 561 | .name = "tc6393xb", |
| 562 | .irq_ack = tc6393xb_irq_ack, |
| 563 | .irq_mask = tc6393xb_irq_mask, |
| 564 | .irq_unmask = tc6393xb_irq_unmask, |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 565 | }; |
| 566 | |
| 567 | static void tc6393xb_attach_irq(struct platform_device *dev) |
| 568 | { |
| 569 | struct tc6393xb *tc6393xb = platform_get_drvdata(dev); |
| 570 | unsigned int irq, irq_base; |
| 571 | |
| 572 | irq_base = tc6393xb->irq_base; |
| 573 | |
| 574 | for (irq = irq_base; irq < irq_base + TC6393XB_NR_IRQS; irq++) { |
Thomas Gleixner | d6f7ce9f | 2011-03-25 11:12:35 +0000 | [diff] [blame] | 575 | irq_set_chip_and_handler(irq, &tc6393xb_chip, handle_edge_irq); |
Thomas Gleixner | d5bb122 | 2011-03-25 11:12:32 +0000 | [diff] [blame] | 576 | irq_set_chip_data(irq, tc6393xb); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 577 | set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); |
| 578 | } |
| 579 | |
Thomas Gleixner | d5bb122 | 2011-03-25 11:12:32 +0000 | [diff] [blame] | 580 | irq_set_irq_type(tc6393xb->irq, IRQ_TYPE_EDGE_FALLING); |
| 581 | irq_set_handler_data(tc6393xb->irq, tc6393xb); |
| 582 | irq_set_chained_handler(tc6393xb->irq, tc6393xb_irq); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 583 | } |
| 584 | |
| 585 | static void tc6393xb_detach_irq(struct platform_device *dev) |
| 586 | { |
| 587 | struct tc6393xb *tc6393xb = platform_get_drvdata(dev); |
| 588 | unsigned int irq, irq_base; |
| 589 | |
Thomas Gleixner | d5bb122 | 2011-03-25 11:12:32 +0000 | [diff] [blame] | 590 | irq_set_chained_handler(tc6393xb->irq, NULL); |
| 591 | irq_set_handler_data(tc6393xb->irq, NULL); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 592 | |
| 593 | irq_base = tc6393xb->irq_base; |
| 594 | |
| 595 | for (irq = irq_base; irq < irq_base + TC6393XB_NR_IRQS; irq++) { |
| 596 | set_irq_flags(irq, 0); |
Thomas Gleixner | d5bb122 | 2011-03-25 11:12:32 +0000 | [diff] [blame] | 597 | irq_set_chip(irq, NULL); |
| 598 | irq_set_chip_data(irq, NULL); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 599 | } |
| 600 | } |
| 601 | |
| 602 | /*--------------------------------------------------------------------------*/ |
| 603 | |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 604 | static int __devinit tc6393xb_probe(struct platform_device *dev) |
| 605 | { |
| 606 | struct tc6393xb_platform_data *tcpd = dev->dev.platform_data; |
| 607 | struct tc6393xb *tc6393xb; |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 608 | struct resource *iomem, *rscr; |
| 609 | int ret, temp; |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 610 | |
| 611 | iomem = platform_get_resource(dev, IORESOURCE_MEM, 0); |
| 612 | if (!iomem) |
| 613 | return -EINVAL; |
| 614 | |
| 615 | tc6393xb = kzalloc(sizeof *tc6393xb, GFP_KERNEL); |
| 616 | if (!tc6393xb) { |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 617 | ret = -ENOMEM; |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 618 | goto err_kzalloc; |
| 619 | } |
| 620 | |
| 621 | spin_lock_init(&tc6393xb->lock); |
| 622 | |
| 623 | platform_set_drvdata(dev, tc6393xb); |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 624 | |
| 625 | ret = platform_get_irq(dev, 0); |
| 626 | if (ret >= 0) |
| 627 | tc6393xb->irq = ret; |
| 628 | else |
| 629 | goto err_noirq; |
| 630 | |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 631 | tc6393xb->iomem = iomem; |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 632 | tc6393xb->irq_base = tcpd->irq_base; |
| 633 | |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 634 | tc6393xb->clk = clk_get(&dev->dev, "CLK_CK3P6MI"); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 635 | if (IS_ERR(tc6393xb->clk)) { |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 636 | ret = PTR_ERR(tc6393xb->clk); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 637 | goto err_clk_get; |
| 638 | } |
| 639 | |
| 640 | rscr = &tc6393xb->rscr; |
| 641 | rscr->name = "tc6393xb-core"; |
| 642 | rscr->start = iomem->start; |
| 643 | rscr->end = iomem->start + 0xff; |
| 644 | rscr->flags = IORESOURCE_MEM; |
| 645 | |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 646 | ret = request_resource(iomem, rscr); |
| 647 | if (ret) |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 648 | goto err_request_scr; |
| 649 | |
H Hartley Sweeten | 1ecc09e | 2010-01-05 20:01:16 +0100 | [diff] [blame] | 650 | tc6393xb->scr = ioremap(rscr->start, resource_size(rscr)); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 651 | if (!tc6393xb->scr) { |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 652 | ret = -ENOMEM; |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 653 | goto err_ioremap; |
| 654 | } |
| 655 | |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 656 | ret = clk_enable(tc6393xb->clk); |
| 657 | if (ret) |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 658 | goto err_clk_enable; |
| 659 | |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 660 | ret = tcpd->enable(dev); |
| 661 | if (ret) |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 662 | goto err_enable; |
| 663 | |
Dmitry Baryshkov | f98a0bd | 2008-09-24 23:46:10 +0200 | [diff] [blame] | 664 | iowrite8(0, tc6393xb->scr + SCR_FER); |
| 665 | iowrite16(tcpd->scr_pll2cr, tc6393xb->scr + SCR_PLL2CR); |
| 666 | iowrite16(SCR_CCR_UNK1 | SCR_CCR_HCLK_48, |
| 667 | tc6393xb->scr + SCR_CCR); |
| 668 | iowrite16(SCR_MCR_RDY_OPENDRAIN | SCR_MCR_RDY_UNK | SCR_MCR_RDY_EN | |
| 669 | SCR_MCR_INT_OPENDRAIN | SCR_MCR_INT_UNK | SCR_MCR_INT_EN | |
| 670 | BIT(15), tc6393xb->scr + SCR_MCR); |
| 671 | iowrite16(tcpd->scr_gper, tc6393xb->scr + SCR_GPER); |
| 672 | iowrite8(0, tc6393xb->scr + SCR_IRR); |
| 673 | iowrite8(0xbf, tc6393xb->scr + SCR_IMR); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 674 | |
| 675 | printk(KERN_INFO "Toshiba tc6393xb revision %d at 0x%08lx, irq %d\n", |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 676 | tmio_ioread8(tc6393xb->scr + SCR_REVID), |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 677 | (unsigned long) iomem->start, tc6393xb->irq); |
| 678 | |
| 679 | tc6393xb->gpio.base = -1; |
| 680 | |
| 681 | if (tcpd->gpio_base >= 0) { |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 682 | ret = tc6393xb_register_gpio(tc6393xb, tcpd->gpio_base); |
| 683 | if (ret) |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 684 | goto err_gpio_add; |
| 685 | } |
| 686 | |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 687 | tc6393xb_attach_irq(dev); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 688 | |
Dmitry Baryshkov | 1c1b6ff | 2008-09-24 23:36:23 +0200 | [diff] [blame] | 689 | if (tcpd->setup) { |
| 690 | ret = tcpd->setup(dev); |
| 691 | if (ret) |
| 692 | goto err_setup; |
| 693 | } |
| 694 | |
Andres Salomon | d9d01f4 | 2011-02-17 19:07:30 -0800 | [diff] [blame] | 695 | tc6393xb_cells[TC6393XB_CELL_NAND].mfd_data = tcpd->nand_data; |
Andres Salomon | 6d90bdd | 2011-02-17 19:07:31 -0800 | [diff] [blame] | 696 | tc6393xb_cells[TC6393XB_CELL_FB].mfd_data = tcpd->fb_data; |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 697 | |
| 698 | ret = mfd_add_devices(&dev->dev, dev->id, |
Dmitry Baryshkov | f024ff1 | 2008-06-27 10:37:57 +0100 | [diff] [blame] | 699 | tc6393xb_cells, ARRAY_SIZE(tc6393xb_cells), |
| 700 | iomem, tcpd->irq_base); |
| 701 | |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 702 | if (!ret) |
| 703 | return 0; |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 704 | |
Dmitry Baryshkov | 1c1b6ff | 2008-09-24 23:36:23 +0200 | [diff] [blame] | 705 | if (tcpd->teardown) |
| 706 | tcpd->teardown(dev); |
| 707 | |
| 708 | err_setup: |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 709 | tc6393xb_detach_irq(dev); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 710 | |
| 711 | err_gpio_add: |
| 712 | if (tc6393xb->gpio.base != -1) |
| 713 | temp = gpiochip_remove(&tc6393xb->gpio); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 714 | tcpd->disable(dev); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 715 | err_enable: |
Axel Lin | fa6e4b1 | 2010-08-03 11:10:41 +0800 | [diff] [blame] | 716 | clk_disable(tc6393xb->clk); |
| 717 | err_clk_enable: |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 718 | iounmap(tc6393xb->scr); |
| 719 | err_ioremap: |
| 720 | release_resource(&tc6393xb->rscr); |
| 721 | err_request_scr: |
| 722 | clk_put(tc6393xb->clk); |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 723 | err_noirq: |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 724 | err_clk_get: |
| 725 | kfree(tc6393xb); |
| 726 | err_kzalloc: |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 727 | return ret; |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 728 | } |
| 729 | |
| 730 | static int __devexit tc6393xb_remove(struct platform_device *dev) |
| 731 | { |
| 732 | struct tc6393xb_platform_data *tcpd = dev->dev.platform_data; |
| 733 | struct tc6393xb *tc6393xb = platform_get_drvdata(dev); |
| 734 | int ret; |
| 735 | |
Dmitry Baryshkov | 424f525 | 2008-07-29 01:30:26 +0200 | [diff] [blame] | 736 | mfd_remove_devices(&dev->dev); |
Dmitry Baryshkov | 1c1b6ff | 2008-09-24 23:36:23 +0200 | [diff] [blame] | 737 | |
| 738 | if (tcpd->teardown) |
| 739 | tcpd->teardown(dev); |
| 740 | |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 741 | tc6393xb_detach_irq(dev); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 742 | |
| 743 | if (tc6393xb->gpio.base != -1) { |
| 744 | ret = gpiochip_remove(&tc6393xb->gpio); |
| 745 | if (ret) { |
| 746 | dev_err(&dev->dev, "Can't remove gpio chip: %d\n", ret); |
| 747 | return ret; |
| 748 | } |
| 749 | } |
| 750 | |
| 751 | ret = tcpd->disable(dev); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 752 | clk_disable(tc6393xb->clk); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 753 | iounmap(tc6393xb->scr); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 754 | release_resource(&tc6393xb->rscr); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 755 | platform_set_drvdata(dev, NULL); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 756 | clk_put(tc6393xb->clk); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 757 | kfree(tc6393xb); |
| 758 | |
| 759 | return ret; |
| 760 | } |
| 761 | |
| 762 | #ifdef CONFIG_PM |
| 763 | static int tc6393xb_suspend(struct platform_device *dev, pm_message_t state) |
| 764 | { |
| 765 | struct tc6393xb_platform_data *tcpd = dev->dev.platform_data; |
| 766 | struct tc6393xb *tc6393xb = platform_get_drvdata(dev); |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 767 | int i, ret; |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 768 | |
| 769 | tc6393xb->suspend_state.ccr = ioread16(tc6393xb->scr + SCR_CCR); |
| 770 | tc6393xb->suspend_state.fer = ioread8(tc6393xb->scr + SCR_FER); |
| 771 | |
| 772 | for (i = 0; i < 3; i++) { |
| 773 | tc6393xb->suspend_state.gpo_dsr[i] = |
| 774 | ioread8(tc6393xb->scr + SCR_GPO_DSR(i)); |
| 775 | tc6393xb->suspend_state.gpo_doecr[i] = |
| 776 | ioread8(tc6393xb->scr + SCR_GPO_DOECR(i)); |
| 777 | tc6393xb->suspend_state.gpi_bcr[i] = |
| 778 | ioread8(tc6393xb->scr + SCR_GPI_BCR(i)); |
| 779 | } |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 780 | ret = tcpd->suspend(dev); |
| 781 | clk_disable(tc6393xb->clk); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 782 | |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 783 | return ret; |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 784 | } |
| 785 | |
| 786 | static int tc6393xb_resume(struct platform_device *dev) |
| 787 | { |
| 788 | struct tc6393xb_platform_data *tcpd = dev->dev.platform_data; |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 789 | struct tc6393xb *tc6393xb = platform_get_drvdata(dev); |
| 790 | int ret; |
Dmitry Baryshkov | f98a0bd | 2008-09-24 23:46:10 +0200 | [diff] [blame] | 791 | int i; |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 792 | |
| 793 | clk_enable(tc6393xb->clk); |
| 794 | |
| 795 | ret = tcpd->resume(dev); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 796 | if (ret) |
| 797 | return ret; |
| 798 | |
Dmitry Baryshkov | f98a0bd | 2008-09-24 23:46:10 +0200 | [diff] [blame] | 799 | if (!tcpd->resume_restore) |
| 800 | return 0; |
| 801 | |
| 802 | iowrite8(tc6393xb->suspend_state.fer, tc6393xb->scr + SCR_FER); |
| 803 | iowrite16(tcpd->scr_pll2cr, tc6393xb->scr + SCR_PLL2CR); |
| 804 | iowrite16(tc6393xb->suspend_state.ccr, tc6393xb->scr + SCR_CCR); |
| 805 | iowrite16(SCR_MCR_RDY_OPENDRAIN | SCR_MCR_RDY_UNK | SCR_MCR_RDY_EN | |
| 806 | SCR_MCR_INT_OPENDRAIN | SCR_MCR_INT_UNK | SCR_MCR_INT_EN | |
| 807 | BIT(15), tc6393xb->scr + SCR_MCR); |
| 808 | iowrite16(tcpd->scr_gper, tc6393xb->scr + SCR_GPER); |
| 809 | iowrite8(0, tc6393xb->scr + SCR_IRR); |
| 810 | iowrite8(0xbf, tc6393xb->scr + SCR_IMR); |
| 811 | |
| 812 | for (i = 0; i < 3; i++) { |
| 813 | iowrite8(tc6393xb->suspend_state.gpo_dsr[i], |
| 814 | tc6393xb->scr + SCR_GPO_DSR(i)); |
| 815 | iowrite8(tc6393xb->suspend_state.gpo_doecr[i], |
| 816 | tc6393xb->scr + SCR_GPO_DOECR(i)); |
| 817 | iowrite8(tc6393xb->suspend_state.gpi_bcr[i], |
| 818 | tc6393xb->scr + SCR_GPI_BCR(i)); |
| 819 | } |
| 820 | |
| 821 | return 0; |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 822 | } |
| 823 | #else |
| 824 | #define tc6393xb_suspend NULL |
| 825 | #define tc6393xb_resume NULL |
| 826 | #endif |
| 827 | |
| 828 | static struct platform_driver tc6393xb_driver = { |
| 829 | .probe = tc6393xb_probe, |
| 830 | .remove = __devexit_p(tc6393xb_remove), |
| 831 | .suspend = tc6393xb_suspend, |
| 832 | .resume = tc6393xb_resume, |
| 833 | |
| 834 | .driver = { |
| 835 | .name = "tc6393xb", |
| 836 | .owner = THIS_MODULE, |
| 837 | }, |
| 838 | }; |
| 839 | |
| 840 | static int __init tc6393xb_init(void) |
| 841 | { |
| 842 | return platform_driver_register(&tc6393xb_driver); |
| 843 | } |
| 844 | |
| 845 | static void __exit tc6393xb_exit(void) |
| 846 | { |
| 847 | platform_driver_unregister(&tc6393xb_driver); |
| 848 | } |
| 849 | |
| 850 | subsys_initcall(tc6393xb_init); |
| 851 | module_exit(tc6393xb_exit); |
| 852 | |
Ian Molton | 25d6cbd8 | 2008-08-10 23:32:07 +0200 | [diff] [blame] | 853 | MODULE_LICENSE("GPL v2"); |
Dmitry Baryshkov | d631594 | 2008-06-22 12:01:58 +0100 | [diff] [blame] | 854 | MODULE_AUTHOR("Ian Molton, Dmitry Baryshkov and Dirk Opfer"); |
| 855 | MODULE_DESCRIPTION("tc6393xb Toshiba Mobile IO Controller"); |
| 856 | MODULE_ALIAS("platform:tc6393xb"); |
Ian Molton | 64e8867 | 2010-01-06 13:51:48 +0100 | [diff] [blame] | 857 | |