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authorLennert Buytenhek <buytenh@wantstofly.org>2006-06-29 11:06:30 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-06-29 11:06:30 -0400
commit656602978e43a4e5d929423d766be0448bdacc1e (patch)
tree4267cdee31182359cfff905efbf38c9c484da224 /arch/arm/mach-pxa
parent264edb35ce5c85749bfdd2942c74b786ea1cde41 (diff)
[ARM] 3673/1: lpd270: parse lcd= command line parameter
Patch from Lennert Buytenhek The bootloader on the LogicPD PXA270 platform informs the kernel of which type of TFT screen is connected via an lcd=$FOO kernel command line parameter. Before this patch, we ignored this parameter and just hardcoded the use of the Sharp lq64d343 display kit. This patch implement parsing of the command line option, and chooses the right pxafb_mach_info to use (six choices) based on this command line option. Also fix the fb settings to correspond with those of the bootloader. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-pxa')
-rw-r--r--arch/arm/mach-pxa/lpd270.c126
1 files changed, 102 insertions, 24 deletions
diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
index ec0f43a102c7..1a5f5c21481e 100644
--- a/arch/arm/mach-pxa/lpd270.c
+++ b/arch/arm/mach-pxa/lpd270.c
@@ -248,58 +248,137 @@ static void lpd270_backlight_power(int on)
248 248
249/* 5.7" TFT QVGA (LoLo display number 1) */ 249/* 5.7" TFT QVGA (LoLo display number 1) */
250static struct pxafb_mach_info sharp_lq057q3dc02 __initdata = { 250static struct pxafb_mach_info sharp_lq057q3dc02 __initdata = {
251 .pixclock = 100000, 251 .pixclock = 150000,
252 .xres = 240, 252 .xres = 320,
253 .yres = 320, 253 .yres = 240,
254 .bpp = 16, 254 .bpp = 16,
255 .hsync_len = 64, 255 .hsync_len = 0x14,
256 .left_margin = 0x27, 256 .left_margin = 0x28,
257 .right_margin = 0x09, 257 .right_margin = 0x0a,
258 .vsync_len = 0x04, 258 .vsync_len = 0x02,
259 .upper_margin = 0x08, 259 .upper_margin = 0x08,
260 .lower_margin = 0x14, 260 .lower_margin = 0x14,
261 .sync = 0, 261 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
262 .lccr0 = 0x07800080, 262 .lccr0 = 0x07800080,
263 .lccr3 = 0x04400007, 263 .lccr3 = 0x00400000,
264 .pxafb_backlight_power = lpd270_backlight_power,
265};
266
267/* 12.1" TFT SVGA (LoLo display number 2) */
268static struct pxafb_mach_info sharp_lq121s1dg31 __initdata = {
269 .pixclock = 50000,
270 .xres = 800,
271 .yres = 600,
272 .bpp = 16,
273 .hsync_len = 0x05,
274 .left_margin = 0x52,
275 .right_margin = 0x05,
276 .vsync_len = 0x04,
277 .upper_margin = 0x14,
278 .lower_margin = 0x0a,
279 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
280 .lccr0 = 0x07800080,
281 .lccr3 = 0x00400000,
282 .pxafb_backlight_power = lpd270_backlight_power,
283};
284
285/* 3.6" TFT QVGA (LoLo display number 3) */
286static struct pxafb_mach_info sharp_lq036q1da01 __initdata = {
287 .pixclock = 150000,
288 .xres = 320,
289 .yres = 240,
290 .bpp = 16,
291 .hsync_len = 0x0e,
292 .left_margin = 0x04,
293 .right_margin = 0x0a,
294 .vsync_len = 0x03,
295 .upper_margin = 0x03,
296 .lower_margin = 0x03,
297 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
298 .lccr0 = 0x07800080,
299 .lccr3 = 0x00400000,
264 .pxafb_backlight_power = lpd270_backlight_power, 300 .pxafb_backlight_power = lpd270_backlight_power,
265}; 301};
266 302
267/* 6.4" TFT VGA (LoLo display number 5) */ 303/* 6.4" TFT VGA (LoLo display number 5) */
268static struct pxafb_mach_info sharp_lq64d343 __initdata = { 304static struct pxafb_mach_info sharp_lq64d343 __initdata = {
269 .pixclock = 20000, 305 .pixclock = 25000,
270 .xres = 640, 306 .xres = 640,
271 .yres = 480, 307 .yres = 480,
272 .bpp = 16, 308 .bpp = 16,
273 .hsync_len = 49, 309 .hsync_len = 0x31,
274 .left_margin = 0x89, 310 .left_margin = 0x89,
275 .right_margin = 0x19, 311 .right_margin = 0x19,
276 .vsync_len = 18, 312 .vsync_len = 0x12,
277 .upper_margin = 0x22, 313 .upper_margin = 0x22,
278 .lower_margin = 0, 314 .lower_margin = 0x00,
279 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 315 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
280 .lccr0 = 0x07800080, 316 .lccr0 = 0x07800080,
281 .lccr3 = 0x04400001, 317 .lccr3 = 0x00400000,
318 .pxafb_backlight_power = lpd270_backlight_power,
319};
320
321/* 10.4" TFT VGA (LoLo display number 7) */
322static struct pxafb_mach_info sharp_lq10d368 __initdata = {
323 .pixclock = 25000,
324 .xres = 640,
325 .yres = 480,
326 .bpp = 16,
327 .hsync_len = 0x31,
328 .left_margin = 0x89,
329 .right_margin = 0x19,
330 .vsync_len = 0x12,
331 .upper_margin = 0x22,
332 .lower_margin = 0x00,
333 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
334 .lccr0 = 0x07800080,
335 .lccr3 = 0x00400000,
282 .pxafb_backlight_power = lpd270_backlight_power, 336 .pxafb_backlight_power = lpd270_backlight_power,
283}; 337};
284 338
285/* 3.5" TFT QVGA (LoLo display number 8) */ 339/* 3.5" TFT QVGA (LoLo display number 8) */
286static struct pxafb_mach_info sharp_lq035q7db02_20 __initdata = { 340static struct pxafb_mach_info sharp_lq035q7db02_20 __initdata = {
287 .pixclock = 100000, 341 .pixclock = 150000,
288 .xres = 240, 342 .xres = 240,
289 .yres = 320, 343 .yres = 320,
290 .bpp = 16, 344 .bpp = 16,
291 .hsync_len = 0x34, 345 .hsync_len = 0x0e,
292 .left_margin = 0x09, 346 .left_margin = 0x0a,
293 .right_margin = 0x09, 347 .right_margin = 0x0a,
294 .vsync_len = 0x08, 348 .vsync_len = 0x03,
295 .upper_margin = 0x05, 349 .upper_margin = 0x05,
296 .lower_margin = 0x14, 350 .lower_margin = 0x14,
297 .sync = 0, 351 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
298 .lccr0 = 0x07800080, 352 .lccr0 = 0x07800080,
299 .lccr3 = 0x04400007, 353 .lccr3 = 0x00400000,
300 .pxafb_backlight_power = lpd270_backlight_power, 354 .pxafb_backlight_power = lpd270_backlight_power,
301}; 355};
302 356
357static struct pxafb_mach_info *lpd270_lcd_to_use;
358
359static int __init lpd270_set_lcd(char *str)
360{
361 if (!strnicmp(str, "lq057q3dc02", 11)) {
362 lpd270_lcd_to_use = &sharp_lq057q3dc02;
363 } else if (!strnicmp(str, "lq121s1dg31", 11)) {
364 lpd270_lcd_to_use = &sharp_lq121s1dg31;
365 } else if (!strnicmp(str, "lq036q1da01", 11)) {
366 lpd270_lcd_to_use = &sharp_lq036q1da01;
367 } else if (!strnicmp(str, "lq64d343", 8)) {
368 lpd270_lcd_to_use = &sharp_lq64d343;
369 } else if (!strnicmp(str, "lq10d368", 8)) {
370 lpd270_lcd_to_use = &sharp_lq10d368;
371 } else if (!strnicmp(str, "lq035q7db02-20", 14)) {
372 lpd270_lcd_to_use = &sharp_lq035q7db02_20;
373 } else {
374 printk(KERN_INFO "lpd270: unknown lcd panel [%s]\n", str);
375 }
376
377 return 1;
378}
379
380__setup("lcd=", lpd270_set_lcd);
381
303static struct platform_device *platform_devices[] __initdata = { 382static struct platform_device *platform_devices[] __initdata = {
304 &smc91x_device, 383 &smc91x_device,
305 &lpd270_audio_device, 384 &lpd270_audio_device,
@@ -345,9 +424,8 @@ static void __init lpd270_init(void)
345 424
346 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); 425 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
347 426
348 // set_pxa_fb_info(&sharp_lq057q3dc02); 427 if (lpd270_lcd_to_use != NULL)
349 set_pxa_fb_info(&sharp_lq64d343); 428 set_pxa_fb_info(lpd270_lcd_to_use);
350 // set_pxa_fb_info(&sharp_lq035q7db02_20);
351 429
352 pxa_set_ohci_info(&lpd270_ohci_platform_data); 430 pxa_set_ohci_info(&lpd270_ohci_platform_data);
353} 431}