diff options
Diffstat (limited to 'meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0009-DSS2-Add-acx565akm-panel.patch')
-rw-r--r-- | meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0009-DSS2-Add-acx565akm-panel.patch | 778 |
1 files changed, 778 insertions, 0 deletions
diff --git a/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0009-DSS2-Add-acx565akm-panel.patch b/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0009-DSS2-Add-acx565akm-panel.patch new file mode 100644 index 0000000000..3f55f04460 --- /dev/null +++ b/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0009-DSS2-Add-acx565akm-panel.patch | |||
@@ -0,0 +1,778 @@ | |||
1 | From 66e16f86d3f4c5b34b37e965c65102b7192371de Mon Sep 17 00:00:00 2001 | ||
2 | From: Imre Deak <imre.deak@nokia.com> | ||
3 | Date: Thu, 2 Apr 2009 11:47:13 +0300 | ||
4 | Subject: [PATCH] DSS2: Add acx565akm panel | ||
5 | |||
6 | Signed-off-by: Imre Deak <imre.deak@nokia.com> | ||
7 | --- | ||
8 | drivers/video/omap2/displays/Kconfig | 8 + | ||
9 | drivers/video/omap2/displays/Makefile | 2 + | ||
10 | drivers/video/omap2/displays/panel-acx565akm.c | 712 ++++++++++++++++++++++++ | ||
11 | drivers/video/omap2/displays/panel-acx565akm.h | 9 + | ||
12 | 4 files changed, 731 insertions(+), 0 deletions(-) | ||
13 | create mode 100644 drivers/video/omap2/displays/panel-acx565akm.c | ||
14 | create mode 100644 drivers/video/omap2/displays/panel-acx565akm.h | ||
15 | |||
16 | diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig | ||
17 | index 356ceb1..3feecee 100644 | ||
18 | --- a/drivers/video/omap2/displays/Kconfig | ||
19 | +++ b/drivers/video/omap2/displays/Kconfig | ||
20 | @@ -28,4 +28,12 @@ config CTRL_BLIZZARD | ||
21 | tristate "Blizzard Controller" | ||
22 | help | ||
23 | Blizzard Controller (hack) | ||
24 | + | ||
25 | +config PANEL_ACX565AKM | ||
26 | + tristate "ACX565AKM LCD Panel" | ||
27 | + depends on OMAP2_DSS_SDI | ||
28 | + select BACKLIGHT_CLASS_DEVICE | ||
29 | + help | ||
30 | + LCD Panel used in RX51 | ||
31 | + | ||
32 | endmenu | ||
33 | diff --git a/drivers/video/omap2/displays/Makefile b/drivers/video/omap2/displays/Makefile | ||
34 | index 1b74b7e..9bafcb6 100644 | ||
35 | --- a/drivers/video/omap2/displays/Makefile | ||
36 | +++ b/drivers/video/omap2/displays/Makefile | ||
37 | @@ -4,3 +4,5 @@ obj-$(CONFIG_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o | ||
38 | |||
39 | obj-$(CONFIG_CTRL_BLIZZARD) += ctrl-blizzard.o | ||
40 | obj-$(CONFIG_PANEL_N800) += panel-n800.o | ||
41 | + | ||
42 | +obj-$(CONFIG_PANEL_ACX565AKM) += panel-acx565akm.o | ||
43 | diff --git a/drivers/video/omap2/displays/panel-acx565akm.c b/drivers/video/omap2/displays/panel-acx565akm.c | ||
44 | new file mode 100644 | ||
45 | index 0000000..2679d6c | ||
46 | --- /dev/null | ||
47 | +++ b/drivers/video/omap2/displays/panel-acx565akm.c | ||
48 | @@ -0,0 +1,712 @@ | ||
49 | +#include <linux/kernel.h> | ||
50 | +#include <linux/module.h> | ||
51 | +#include <linux/clk.h> | ||
52 | +#include <linux/platform_device.h> | ||
53 | +#include <linux/delay.h> | ||
54 | +#include <linux/spi/spi.h> | ||
55 | +#include <linux/jiffies.h> | ||
56 | +#include <linux/sched.h> | ||
57 | +#include <linux/backlight.h> | ||
58 | +#include <linux/fb.h> | ||
59 | + | ||
60 | +#include <mach/display.h> | ||
61 | +#include <mach/dma.h> | ||
62 | + | ||
63 | +#include "panel-acx565akm.h" | ||
64 | + | ||
65 | +#define MIPID_CMD_READ_DISP_ID 0x04 | ||
66 | +#define MIPID_CMD_READ_RED 0x06 | ||
67 | +#define MIPID_CMD_READ_GREEN 0x07 | ||
68 | +#define MIPID_CMD_READ_BLUE 0x08 | ||
69 | +#define MIPID_CMD_READ_DISP_STATUS 0x09 | ||
70 | +#define MIPID_CMD_RDDSDR 0x0F | ||
71 | +#define MIPID_CMD_SLEEP_IN 0x10 | ||
72 | +#define MIPID_CMD_SLEEP_OUT 0x11 | ||
73 | +#define MIPID_CMD_DISP_OFF 0x28 | ||
74 | +#define MIPID_CMD_DISP_ON 0x29 | ||
75 | +#define MIPID_CMD_WRITE_DISP_BRIGHTNESS 0x51 | ||
76 | +#define MIPID_CMD_READ_DISP_BRIGHTNESS 0x52 | ||
77 | +#define MIPID_CMD_WRITE_CTRL_DISP 0x53 | ||
78 | + | ||
79 | +#define CTRL_DISP_BRIGHTNESS_CTRL_ON (1 << 5) | ||
80 | +#define CTRL_DISP_AMBIENT_LIGHT_CTRL_ON (1 << 4) | ||
81 | +#define CTRL_DISP_BACKLIGHT_ON (1 << 2) | ||
82 | +#define CTRL_DISP_AUTO_BRIGHTNESS_ON (1 << 1) | ||
83 | + | ||
84 | +#define MIPID_CMD_READ_CTRL_DISP 0x54 | ||
85 | +#define MIPID_CMD_WRITE_CABC 0x55 | ||
86 | +#define MIPID_CMD_READ_CABC 0x56 | ||
87 | + | ||
88 | +#define MIPID_VER_LPH8923 3 | ||
89 | +#define MIPID_VER_LS041Y3 4 | ||
90 | +#define MIPID_VER_L4F00311 8 | ||
91 | +#define MIPID_VER_ACX565AKM 9 | ||
92 | + | ||
93 | +struct acx565akm_device { | ||
94 | + struct backlight_device *bl_dev; | ||
95 | + int enabled; | ||
96 | + int model; | ||
97 | + int revision; | ||
98 | + u8 display_id[3]; | ||
99 | + int has_bc:1; | ||
100 | + int has_cabc:1; | ||
101 | + unsigned int saved_bklight_level; | ||
102 | + unsigned long hw_guard_end; /* next value of jiffies | ||
103 | + when we can issue the | ||
104 | + next sleep in/out command */ | ||
105 | + unsigned long hw_guard_wait; /* max guard time in jiffies */ | ||
106 | + | ||
107 | + struct spi_device *spi; | ||
108 | + struct mutex mutex; | ||
109 | + struct omap_panel panel; | ||
110 | + struct omap_display *display; | ||
111 | +}; | ||
112 | + | ||
113 | +static int acx565akm_bl_update_status(struct backlight_device *dev); | ||
114 | + | ||
115 | +static void acx565akm_transfer(struct acx565akm_device *md, int cmd, | ||
116 | + const u8 *wbuf, int wlen, u8 *rbuf, int rlen) | ||
117 | +{ | ||
118 | + struct spi_message m; | ||
119 | + struct spi_transfer *x, xfer[5]; | ||
120 | + int r; | ||
121 | + | ||
122 | + BUG_ON(md->spi == NULL); | ||
123 | + | ||
124 | + spi_message_init(&m); | ||
125 | + | ||
126 | + memset(xfer, 0, sizeof(xfer)); | ||
127 | + x = &xfer[0]; | ||
128 | + | ||
129 | + cmd &= 0xff; | ||
130 | + x->tx_buf = &cmd; | ||
131 | + x->bits_per_word = 9; | ||
132 | + x->len = 2; | ||
133 | + | ||
134 | + if (rlen > 1 && wlen == 0) { | ||
135 | + /* | ||
136 | + * Between the command and the response data there is a | ||
137 | + * dummy clock cycle. Add an extra bit after the command | ||
138 | + * word to account for this. | ||
139 | + */ | ||
140 | + x->bits_per_word = 10; | ||
141 | + cmd <<= 1; | ||
142 | + } | ||
143 | + spi_message_add_tail(x, &m); | ||
144 | + | ||
145 | + if (wlen) { | ||
146 | + x++; | ||
147 | + x->tx_buf = wbuf; | ||
148 | + x->len = wlen; | ||
149 | + x->bits_per_word = 9; | ||
150 | + spi_message_add_tail(x, &m); | ||
151 | + } | ||
152 | + | ||
153 | + if (rlen) { | ||
154 | + x++; | ||
155 | + x->rx_buf = rbuf; | ||
156 | + x->len = rlen; | ||
157 | + spi_message_add_tail(x, &m); | ||
158 | + } | ||
159 | + | ||
160 | + r = spi_sync(md->spi, &m); | ||
161 | + if (r < 0) | ||
162 | + dev_dbg(&md->spi->dev, "spi_sync %d\n", r); | ||
163 | +} | ||
164 | + | ||
165 | +static inline void acx565akm_cmd(struct acx565akm_device *md, int cmd) | ||
166 | +{ | ||
167 | + acx565akm_transfer(md, cmd, NULL, 0, NULL, 0); | ||
168 | +} | ||
169 | + | ||
170 | +static inline void acx565akm_write(struct acx565akm_device *md, | ||
171 | + int reg, const u8 *buf, int len) | ||
172 | +{ | ||
173 | + acx565akm_transfer(md, reg, buf, len, NULL, 0); | ||
174 | +} | ||
175 | + | ||
176 | +static inline void acx565akm_read(struct acx565akm_device *md, | ||
177 | + int reg, u8 *buf, int len) | ||
178 | +{ | ||
179 | + acx565akm_transfer(md, reg, NULL, 0, buf, len); | ||
180 | +} | ||
181 | + | ||
182 | +static void hw_guard_start(struct acx565akm_device *md, int guard_msec) | ||
183 | +{ | ||
184 | + md->hw_guard_wait = msecs_to_jiffies(guard_msec); | ||
185 | + md->hw_guard_end = jiffies + md->hw_guard_wait; | ||
186 | +} | ||
187 | + | ||
188 | +static void hw_guard_wait(struct acx565akm_device *md) | ||
189 | +{ | ||
190 | + unsigned long wait = md->hw_guard_end - jiffies; | ||
191 | + | ||
192 | + if ((long)wait > 0 && wait <= md->hw_guard_wait) { | ||
193 | + set_current_state(TASK_UNINTERRUPTIBLE); | ||
194 | + schedule_timeout(wait); | ||
195 | + } | ||
196 | +} | ||
197 | + | ||
198 | +static void set_sleep_mode(struct acx565akm_device *md, int on) | ||
199 | +{ | ||
200 | + int cmd, sleep_time = 50; | ||
201 | + | ||
202 | + if (on) | ||
203 | + cmd = MIPID_CMD_SLEEP_IN; | ||
204 | + else | ||
205 | + cmd = MIPID_CMD_SLEEP_OUT; | ||
206 | + hw_guard_wait(md); | ||
207 | + acx565akm_cmd(md, cmd); | ||
208 | + hw_guard_start(md, 120); | ||
209 | + /* | ||
210 | + * When we enable the panel, it seems we _have_ to sleep | ||
211 | + * 120 ms before sending the init string. When disabling the | ||
212 | + * panel we'll sleep for the duration of 2 frames, so that the | ||
213 | + * controller can still provide the PCLK,HS,VS signals. */ | ||
214 | + if (!on) | ||
215 | + sleep_time = 120; | ||
216 | + msleep(sleep_time); | ||
217 | +} | ||
218 | + | ||
219 | +static void set_display_state(struct acx565akm_device *md, int enabled) | ||
220 | +{ | ||
221 | + int cmd = enabled ? MIPID_CMD_DISP_ON : MIPID_CMD_DISP_OFF; | ||
222 | + | ||
223 | + acx565akm_cmd(md, cmd); | ||
224 | +} | ||
225 | + | ||
226 | +static int panel_enabled(struct acx565akm_device *md) | ||
227 | +{ | ||
228 | + u32 disp_status; | ||
229 | + int enabled; | ||
230 | + | ||
231 | + acx565akm_read(md, MIPID_CMD_READ_DISP_STATUS, (u8 *)&disp_status, 4); | ||
232 | + disp_status = __be32_to_cpu(disp_status); | ||
233 | + enabled = (disp_status & (1 << 17)) && (disp_status & (1 << 10)); | ||
234 | + dev_dbg(&md->spi->dev, | ||
235 | + "LCD panel %senabled by bootloader (status 0x%04x)\n", | ||
236 | + enabled ? "" : "not ", disp_status); | ||
237 | + return enabled; | ||
238 | +} | ||
239 | + | ||
240 | +static void enable_backlight_ctrl(struct acx565akm_device *md, int enable) | ||
241 | +{ | ||
242 | + u16 ctrl; | ||
243 | + | ||
244 | + acx565akm_read(md, MIPID_CMD_READ_CTRL_DISP, (u8 *)&ctrl, 1); | ||
245 | + if (enable) { | ||
246 | + ctrl |= CTRL_DISP_BRIGHTNESS_CTRL_ON | | ||
247 | + CTRL_DISP_BACKLIGHT_ON; | ||
248 | + } else { | ||
249 | + ctrl &= ~(CTRL_DISP_BRIGHTNESS_CTRL_ON | | ||
250 | + CTRL_DISP_BACKLIGHT_ON); | ||
251 | + } | ||
252 | + | ||
253 | + ctrl |= 1 << 8; | ||
254 | + acx565akm_write(md, MIPID_CMD_WRITE_CTRL_DISP, (u8 *)&ctrl, 2); | ||
255 | +} | ||
256 | + | ||
257 | +static void set_cabc_mode(struct acx565akm_device *md, int mode) | ||
258 | +{ | ||
259 | + u16 cabc_ctrl; | ||
260 | + | ||
261 | + cabc_ctrl = 0; | ||
262 | + acx565akm_read(md, MIPID_CMD_READ_CABC, (u8 *)&cabc_ctrl, 1); | ||
263 | + cabc_ctrl &= ~3; | ||
264 | + cabc_ctrl |= (1 << 8) | (mode & 3); | ||
265 | + acx565akm_write(md, MIPID_CMD_WRITE_CABC, (u8 *)&cabc_ctrl, 2); | ||
266 | +} | ||
267 | + | ||
268 | +static int get_cabc_mode(struct acx565akm_device *md) | ||
269 | +{ | ||
270 | + u8 cabc_ctrl; | ||
271 | + | ||
272 | + acx565akm_read(md, MIPID_CMD_READ_CABC, &cabc_ctrl, 1); | ||
273 | + return cabc_ctrl & 3; | ||
274 | +} | ||
275 | + | ||
276 | +static int panel_detect(struct acx565akm_device *md) | ||
277 | +{ | ||
278 | + acx565akm_read(md, MIPID_CMD_READ_DISP_ID, md->display_id, 3); | ||
279 | + dev_dbg(&md->spi->dev, "MIPI display ID: %02x%02x%02x\n", | ||
280 | + md->display_id[0], md->display_id[1], md->display_id[2]); | ||
281 | + | ||
282 | + switch (md->display_id[0]) { | ||
283 | + case 0x10: | ||
284 | + md->model = MIPID_VER_ACX565AKM; | ||
285 | + md->panel.name = "acx565akm"; | ||
286 | + md->has_bc = 1; | ||
287 | + md->has_cabc = 1; | ||
288 | + break; | ||
289 | + case 0x29: | ||
290 | + md->model = MIPID_VER_L4F00311; | ||
291 | + md->panel.name = "l4f00311"; | ||
292 | + break; | ||
293 | + case 0x45: | ||
294 | + md->model = MIPID_VER_LPH8923; | ||
295 | + md->panel.name = "lph8923"; | ||
296 | + break; | ||
297 | + case 0x83: | ||
298 | + md->model = MIPID_VER_LS041Y3; | ||
299 | + md->panel.name = "ls041y3"; | ||
300 | + break; | ||
301 | + default: | ||
302 | + md->panel.name = "unknown"; | ||
303 | + dev_err(&md->spi->dev, "invalid display ID\n"); | ||
304 | + return -ENODEV; | ||
305 | + } | ||
306 | + | ||
307 | + md->revision = md->display_id[1]; | ||
308 | + | ||
309 | + pr_info("omapfb: %s rev %02x LCD detected\n", | ||
310 | + md->panel.name, md->revision); | ||
311 | + | ||
312 | + return 0; | ||
313 | +} | ||
314 | + | ||
315 | +static int acx565akm_panel_enable(struct omap_display *display) | ||
316 | +{ | ||
317 | + struct acx565akm_device *md = | ||
318 | + (struct acx565akm_device *)display->panel->priv; | ||
319 | + | ||
320 | + dev_dbg(&md->spi->dev, "%s\n", __func__); | ||
321 | + | ||
322 | + mutex_lock(&md->mutex); | ||
323 | + | ||
324 | + if (display->hw_config.panel_enable) | ||
325 | + display->hw_config.panel_enable(display); | ||
326 | + | ||
327 | + md->enabled = panel_enabled(md); | ||
328 | + | ||
329 | + if (md->enabled) { | ||
330 | + dev_dbg(&md->spi->dev, "panel already enabled\n"); | ||
331 | + mutex_unlock(&md->mutex); | ||
332 | + return 0; | ||
333 | + } | ||
334 | + | ||
335 | + set_sleep_mode(md, 0); | ||
336 | + md->enabled = 1; | ||
337 | + set_display_state(md, 1); | ||
338 | + | ||
339 | + mutex_unlock(&md->mutex); | ||
340 | + | ||
341 | + return acx565akm_bl_update_status(md->bl_dev); | ||
342 | +} | ||
343 | + | ||
344 | +static void acx565akm_panel_disable(struct omap_display *display) | ||
345 | +{ | ||
346 | + struct acx565akm_device *md = | ||
347 | + (struct acx565akm_device *)display->panel->priv; | ||
348 | + | ||
349 | + dev_dbg(&md->spi->dev, "%s\n", __func__); | ||
350 | + | ||
351 | + mutex_lock(&md->mutex); | ||
352 | + | ||
353 | + if (!md->enabled) { | ||
354 | + mutex_unlock(&md->mutex); | ||
355 | + return; | ||
356 | + } | ||
357 | + set_display_state(md, 0); | ||
358 | + set_sleep_mode(md, 1); | ||
359 | + md->enabled = 0; | ||
360 | + | ||
361 | + if (display->hw_config.panel_disable) | ||
362 | + display->hw_config.panel_disable(display); | ||
363 | + | ||
364 | + mutex_unlock(&md->mutex); | ||
365 | +} | ||
366 | + | ||
367 | +#if 0 | ||
368 | +static void acx565akm_set_mode(struct omap_display *display, | ||
369 | + int x_res, int y_res, int bpp) | ||
370 | +{ | ||
371 | + struct acx565akm_device *md = | ||
372 | + (struct acx565akm_device *)display->panel->priv; | ||
373 | + u16 par; | ||
374 | + | ||
375 | + switch (bpp) { | ||
376 | + case 16: | ||
377 | + par = 0x150; | ||
378 | + break; | ||
379 | + case 18: | ||
380 | + par = 0x160; | ||
381 | + break; | ||
382 | + case 24: | ||
383 | + par = 0x170; | ||
384 | + break; | ||
385 | + } | ||
386 | + | ||
387 | + acx565akm_write(md, 0x3a, (u8 *)&par, 2); | ||
388 | +} | ||
389 | +#endif | ||
390 | + | ||
391 | +static int acx565akm_panel_suspend(struct omap_display *display) | ||
392 | +{ | ||
393 | + acx565akm_panel_disable(display); | ||
394 | + return 0; | ||
395 | +} | ||
396 | + | ||
397 | +static int acx565akm_panel_resume(struct omap_display *display) | ||
398 | +{ | ||
399 | + return acx565akm_panel_enable(display); | ||
400 | +} | ||
401 | + | ||
402 | +static void acx565akm_set_brightness(struct acx565akm_device *md, int level) | ||
403 | +{ | ||
404 | + int bv; | ||
405 | + | ||
406 | + bv = level | (1 << 8); | ||
407 | + acx565akm_write(md, MIPID_CMD_WRITE_DISP_BRIGHTNESS, (u8 *)&bv, 2); | ||
408 | + | ||
409 | + if (level) | ||
410 | + enable_backlight_ctrl(md, 1); | ||
411 | + else | ||
412 | + enable_backlight_ctrl(md, 0); | ||
413 | +} | ||
414 | + | ||
415 | +static int acx565akm_get_actual_brightness(struct acx565akm_device *md) | ||
416 | +{ | ||
417 | + u8 bv; | ||
418 | + | ||
419 | + acx565akm_read(md, MIPID_CMD_READ_DISP_BRIGHTNESS, &bv, 1); | ||
420 | + | ||
421 | + return bv; | ||
422 | +} | ||
423 | + | ||
424 | +static int acx565akm_bl_update_status(struct backlight_device *dev) | ||
425 | +{ | ||
426 | + struct acx565akm_device *md = dev_get_drvdata(&dev->dev); | ||
427 | + struct omap_display *display = md->display; | ||
428 | + int r; | ||
429 | + int level; | ||
430 | + | ||
431 | + dev_dbg(&md->spi->dev, "%s\n", __func__); | ||
432 | + | ||
433 | + if (display->hw_config.set_backlight == NULL) | ||
434 | + return -ENODEV; | ||
435 | + | ||
436 | + mutex_lock(&md->mutex); | ||
437 | + | ||
438 | + if (dev->props.fb_blank == FB_BLANK_UNBLANK && | ||
439 | + dev->props.power == FB_BLANK_UNBLANK) | ||
440 | + level = dev->props.brightness; | ||
441 | + else | ||
442 | + level = 0; | ||
443 | + | ||
444 | + r = 0; | ||
445 | + if (md->has_bc) | ||
446 | + acx565akm_set_brightness(md, level); | ||
447 | + else | ||
448 | + if (display->hw_config.set_backlight != NULL) | ||
449 | + r = display->hw_config.set_backlight(display, level); | ||
450 | + else | ||
451 | + r = -ENODEV; | ||
452 | + | ||
453 | + mutex_unlock(&md->mutex); | ||
454 | + | ||
455 | + return r; | ||
456 | +} | ||
457 | + | ||
458 | +static int acx565akm_bl_get_intensity(struct backlight_device *dev) | ||
459 | +{ | ||
460 | + struct acx565akm_device *md = dev_get_drvdata(&dev->dev); | ||
461 | + struct omap_display *display = md->display; | ||
462 | + | ||
463 | + dev_dbg(&dev->dev, "%s\n", __func__); | ||
464 | + | ||
465 | + if (md->has_bc && display->hw_config.set_backlight == NULL) | ||
466 | + return -ENODEV; | ||
467 | + | ||
468 | + if (dev->props.fb_blank == FB_BLANK_UNBLANK && | ||
469 | + dev->props.power == FB_BLANK_UNBLANK) { | ||
470 | + if (md->has_bc) | ||
471 | + return acx565akm_get_actual_brightness(md); | ||
472 | + else | ||
473 | + return dev->props.brightness; | ||
474 | + } | ||
475 | + | ||
476 | + return 0; | ||
477 | +} | ||
478 | + | ||
479 | +static struct backlight_ops acx565akm_bl_ops = { | ||
480 | + .get_brightness = acx565akm_bl_get_intensity, | ||
481 | + .update_status = acx565akm_bl_update_status, | ||
482 | +}; | ||
483 | + | ||
484 | +static const char *cabc_modes[] = { | ||
485 | + "off", /* used also always when CABC is not supported */ | ||
486 | + "ui", | ||
487 | + "still-image", | ||
488 | + "moving-image", | ||
489 | +}; | ||
490 | + | ||
491 | +static ssize_t show_cabc_mode(struct device *dev, | ||
492 | + struct device_attribute *attr, | ||
493 | + char *buf) | ||
494 | +{ | ||
495 | + struct acx565akm_device *md = dev_get_drvdata(dev); | ||
496 | + const char *mode_str; | ||
497 | + int mode; | ||
498 | + int len; | ||
499 | + | ||
500 | + if (!md->has_cabc) | ||
501 | + mode = 0; | ||
502 | + else | ||
503 | + mode = get_cabc_mode(md); | ||
504 | + mode_str = "unknown"; | ||
505 | + if (mode >= 0 && mode < ARRAY_SIZE(cabc_modes)) | ||
506 | + mode_str = cabc_modes[mode]; | ||
507 | + len = snprintf(buf, PAGE_SIZE, "%s\n", mode_str); | ||
508 | + | ||
509 | + return len < PAGE_SIZE - 1 ? len : PAGE_SIZE - 1; | ||
510 | +} | ||
511 | + | ||
512 | +static ssize_t store_cabc_mode(struct device *dev, | ||
513 | + struct device_attribute *attr, | ||
514 | + const char *buf, size_t count) | ||
515 | +{ | ||
516 | + struct acx565akm_device *md = dev_get_drvdata(dev); | ||
517 | + int i; | ||
518 | + | ||
519 | + for (i = 0; i < ARRAY_SIZE(cabc_modes); i++) { | ||
520 | + const char *mode_str = cabc_modes[i]; | ||
521 | + int cmp_len = strlen(mode_str); | ||
522 | + | ||
523 | + if (count > 0 && buf[count - 1] == '\n') | ||
524 | + count--; | ||
525 | + if (count != cmp_len) | ||
526 | + continue; | ||
527 | + | ||
528 | + if (strncmp(buf, mode_str, cmp_len) == 0) | ||
529 | + break; | ||
530 | + } | ||
531 | + | ||
532 | + if (i == ARRAY_SIZE(cabc_modes)) | ||
533 | + return -EINVAL; | ||
534 | + | ||
535 | + if (!md->has_cabc && i != 0) | ||
536 | + return -EINVAL; | ||
537 | + | ||
538 | + mutex_lock(&md->mutex); | ||
539 | + set_cabc_mode(md, i); | ||
540 | + mutex_unlock(&md->mutex); | ||
541 | + | ||
542 | + return count; | ||
543 | +} | ||
544 | + | ||
545 | +static ssize_t show_cabc_available_modes(struct device *dev, | ||
546 | + struct device_attribute *attr, | ||
547 | + char *buf) | ||
548 | +{ | ||
549 | + struct acx565akm_device *md = dev_get_drvdata(dev); | ||
550 | + int len; | ||
551 | + int i; | ||
552 | + | ||
553 | + if (!md->has_cabc) | ||
554 | + return snprintf(buf, PAGE_SIZE, "%s\n", cabc_modes[0]); | ||
555 | + | ||
556 | + for (i = 0, len = 0; | ||
557 | + len < PAGE_SIZE && i < ARRAY_SIZE(cabc_modes); i++) | ||
558 | + len += snprintf(&buf[len], PAGE_SIZE - len, "%s%s%s", | ||
559 | + i ? " " : "", cabc_modes[i], | ||
560 | + i == ARRAY_SIZE(cabc_modes) - 1 ? "\n" : ""); | ||
561 | + | ||
562 | + return len < PAGE_SIZE ? len : PAGE_SIZE - 1; | ||
563 | +} | ||
564 | + | ||
565 | +static DEVICE_ATTR(cabc_mode, S_IRUGO | S_IWUSR, | ||
566 | + show_cabc_mode, store_cabc_mode); | ||
567 | +static DEVICE_ATTR(cabc_available_modes, S_IRUGO, | ||
568 | + show_cabc_available_modes, NULL); | ||
569 | + | ||
570 | +static struct attribute *bldev_attrs[] = { | ||
571 | + &dev_attr_cabc_mode.attr, | ||
572 | + &dev_attr_cabc_available_modes.attr, | ||
573 | + NULL, | ||
574 | +}; | ||
575 | + | ||
576 | +static struct attribute_group bldev_attr_group = { | ||
577 | + .attrs = bldev_attrs, | ||
578 | +}; | ||
579 | + | ||
580 | +static int acx565akm_panel_init(struct omap_display *display) | ||
581 | +{ | ||
582 | + struct omap_panel *panel = display->panel; | ||
583 | + struct acx565akm_panel_data *panel_data = display->hw_config.panel_data; | ||
584 | + struct acx565akm_device *md = (struct acx565akm_device *)panel->priv; | ||
585 | + | ||
586 | + struct backlight_device *bldev; | ||
587 | + int brightness; | ||
588 | + int max_brightness; | ||
589 | + int r; | ||
590 | + | ||
591 | + dev_dbg(&md->spi->dev, "%s\n", __func__); | ||
592 | + | ||
593 | + if (!panel_data) { | ||
594 | + dev_err(&md->spi->dev, "no panel data\n"); | ||
595 | + return -ENODEV; | ||
596 | + } | ||
597 | + | ||
598 | + mutex_init(&md->mutex); | ||
599 | + md->display = display; | ||
600 | + | ||
601 | + if (display->hw_config.panel_enable) | ||
602 | + display->hw_config.panel_enable(display); | ||
603 | + | ||
604 | + md->enabled = panel_enabled(md); | ||
605 | + | ||
606 | + r = panel_detect(md); | ||
607 | + if (r) { | ||
608 | + if (!md->enabled && display->hw_config.panel_disable) | ||
609 | + display->hw_config.panel_disable(display); | ||
610 | + mutex_unlock(&md->mutex); | ||
611 | + return r; | ||
612 | + } | ||
613 | + | ||
614 | + if (!panel_data->bc_connected) { | ||
615 | + md->has_bc = 0; | ||
616 | + md->has_cabc = 0; | ||
617 | + } | ||
618 | + | ||
619 | +#if 0 | ||
620 | + acx565akm_set_mode(display, panel->timings.x_res, panel->timings.y_res, | ||
621 | + panel->bpp); | ||
622 | +#endif | ||
623 | + | ||
624 | + if (!md->enabled) | ||
625 | + display->hw_config.panel_disable(display); | ||
626 | + | ||
627 | + bldev = backlight_device_register("acx565akm", &md->spi->dev, | ||
628 | + md, &acx565akm_bl_ops); | ||
629 | + md->bl_dev = bldev; | ||
630 | + | ||
631 | + if (md->has_cabc) { | ||
632 | + r = sysfs_create_group(&bldev->dev.kobj, &bldev_attr_group); | ||
633 | + if (r) { | ||
634 | + dev_err(&bldev->dev, "failed to create sysfs files\n"); | ||
635 | + backlight_device_unregister(bldev); | ||
636 | + return r; | ||
637 | + } | ||
638 | + } | ||
639 | + | ||
640 | + bldev->props.fb_blank = FB_BLANK_UNBLANK; | ||
641 | + bldev->props.power = FB_BLANK_UNBLANK; | ||
642 | + | ||
643 | + if (md->has_bc) | ||
644 | + max_brightness = 255; | ||
645 | + else | ||
646 | + max_brightness = display->hw_config.max_backlight_level; | ||
647 | + | ||
648 | + if (md->has_bc) | ||
649 | + brightness = acx565akm_get_actual_brightness(md); | ||
650 | + else { | ||
651 | + if (display->hw_config.get_backlight != NULL) | ||
652 | + brightness = display->hw_config.get_backlight(display); | ||
653 | + else | ||
654 | + brightness = 0; | ||
655 | + } | ||
656 | + | ||
657 | + bldev->props.max_brightness = max_brightness; | ||
658 | + bldev->props.brightness = brightness; | ||
659 | + acx565akm_bl_update_status(bldev); | ||
660 | + | ||
661 | + return 0; | ||
662 | +} | ||
663 | + | ||
664 | +static struct omap_panel acx565akm_panel = { | ||
665 | + .name = "panel-acx565akm", | ||
666 | + .init = acx565akm_panel_init, | ||
667 | + .suspend = acx565akm_panel_suspend, | ||
668 | + .resume = acx565akm_panel_resume, | ||
669 | + .enable = acx565akm_panel_enable, | ||
670 | + .disable = acx565akm_panel_disable, | ||
671 | + | ||
672 | + .timings = { | ||
673 | + .x_res = 800, | ||
674 | + .y_res = 480, | ||
675 | + | ||
676 | + .pixel_clock = 24000, | ||
677 | + | ||
678 | + .hsw = 4, | ||
679 | + .hfp = 16, | ||
680 | + .hbp = 12, | ||
681 | + | ||
682 | + .vsw = 3, | ||
683 | + .vfp = 3, | ||
684 | + .vbp = 3, | ||
685 | + }, | ||
686 | + | ||
687 | + .config = OMAP_DSS_LCD_TFT, | ||
688 | + | ||
689 | + .recommended_bpp = 16, | ||
690 | + | ||
691 | + /* | ||
692 | + * supported modes: 12bpp(444), 16bpp(565), 18bpp(666), 24bpp(888) | ||
693 | + * resolutions. | ||
694 | + */ | ||
695 | +}; | ||
696 | + | ||
697 | +static int acx565akm_spi_probe(struct spi_device *spi) | ||
698 | +{ | ||
699 | + struct acx565akm_device *md; | ||
700 | + | ||
701 | + dev_dbg(&md->spi->dev, "%s\n", __func__); | ||
702 | + | ||
703 | + md = kzalloc(sizeof(*md), GFP_KERNEL); | ||
704 | + if (md == NULL) { | ||
705 | + dev_err(&spi->dev, "out of memory\n"); | ||
706 | + return -ENOMEM; | ||
707 | + } | ||
708 | + | ||
709 | + spi->mode = SPI_MODE_3; | ||
710 | + md->spi = spi; | ||
711 | + dev_set_drvdata(&spi->dev, md); | ||
712 | + md->panel = acx565akm_panel; | ||
713 | + acx565akm_panel.priv = md; | ||
714 | + | ||
715 | + omap_dss_register_panel(&acx565akm_panel); | ||
716 | + | ||
717 | + return 0; | ||
718 | +} | ||
719 | + | ||
720 | +static int acx565akm_spi_remove(struct spi_device *spi) | ||
721 | +{ | ||
722 | + struct acx565akm_device *md = dev_get_drvdata(&spi->dev); | ||
723 | + | ||
724 | + dev_dbg(&md->spi->dev, "%s\n", __func__); | ||
725 | + | ||
726 | + sysfs_remove_group(&md->bl_dev->dev.kobj, &bldev_attr_group); | ||
727 | + backlight_device_unregister(md->bl_dev); | ||
728 | + omap_dss_unregister_panel(&acx565akm_panel); | ||
729 | + | ||
730 | + kfree(md); | ||
731 | + | ||
732 | + return 0; | ||
733 | +} | ||
734 | + | ||
735 | +static struct spi_driver acx565akm_spi_driver = { | ||
736 | + .driver = { | ||
737 | + .name = "acx565akm", | ||
738 | + .bus = &spi_bus_type, | ||
739 | + .owner = THIS_MODULE, | ||
740 | + }, | ||
741 | + .probe = acx565akm_spi_probe, | ||
742 | + .remove = __devexit_p(acx565akm_spi_remove), | ||
743 | +}; | ||
744 | + | ||
745 | +static int __init acx565akm_init(void) | ||
746 | +{ | ||
747 | + return spi_register_driver(&acx565akm_spi_driver); | ||
748 | +} | ||
749 | + | ||
750 | +static void __exit acx565akm_exit(void) | ||
751 | +{ | ||
752 | + spi_unregister_driver(&acx565akm_spi_driver); | ||
753 | +} | ||
754 | + | ||
755 | +module_init(acx565akm_init); | ||
756 | +module_exit(acx565akm_exit); | ||
757 | + | ||
758 | +MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); | ||
759 | +MODULE_DESCRIPTION("acx565akm LCD Driver"); | ||
760 | +MODULE_LICENSE("GPL"); | ||
761 | diff --git a/drivers/video/omap2/displays/panel-acx565akm.h b/drivers/video/omap2/displays/panel-acx565akm.h | ||
762 | new file mode 100644 | ||
763 | index 0000000..6d3727b | ||
764 | --- /dev/null | ||
765 | +++ b/drivers/video/omap2/displays/panel-acx565akm.h | ||
766 | @@ -0,0 +1,9 @@ | ||
767 | +#ifndef __DRIVERS_VIDEO_OMAP2_DISPLAYS_PANEL_ACX565AKM_H | ||
768 | +#define __DRIVERS_VIDEO_OMAP2_DISPLAYS_PANEL_ACX565AKM_H | ||
769 | + | ||
770 | +struct acx565akm_panel_data { | ||
771 | + unsigned bc_connected:1; | ||
772 | +}; | ||
773 | + | ||
774 | +#endif | ||
775 | + | ||
776 | -- | ||
777 | 1.5.6.5 | ||
778 | |||