2 * Sony ACX565AKM LCD Panel driver
4 * Copyright (C) 2010 Nokia Corporation
6 * Original Driver Author: Imre Deak <imre.deak@nokia.com>
7 * Based on panel-generic.c by Tomi Valkeinen <tomi.valkeinen@nokia.com>
8 * Adapted to new DSS2 framework: Roger Quadros <roger.quadros@nokia.com>
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License version 2 as published by
12 * the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19 * You should have received a copy of the GNU General Public License along with
20 * this program. If not, see <http://www.gnu.org/licenses/>.
23 #include <linux/kernel.h>
24 #include <linux/module.h>
25 #include <linux/platform_device.h>
26 #include <linux/delay.h>
27 #include <linux/spi/spi.h>
28 #include <linux/jiffies.h>
29 #include <linux/sched.h>
30 #include <linux/backlight.h>
31 #include <linux/gpio/consumer.h>
33 #include <linux/of_gpio.h>
35 #include "../dss/omapdss.h"
37 #define MIPID_CMD_READ_DISP_ID 0x04
38 #define MIPID_CMD_READ_RED 0x06
39 #define MIPID_CMD_READ_GREEN 0x07
40 #define MIPID_CMD_READ_BLUE 0x08
41 #define MIPID_CMD_READ_DISP_STATUS 0x09
42 #define MIPID_CMD_RDDSDR 0x0F
43 #define MIPID_CMD_SLEEP_IN 0x10
44 #define MIPID_CMD_SLEEP_OUT 0x11
45 #define MIPID_CMD_DISP_OFF 0x28
46 #define MIPID_CMD_DISP_ON 0x29
47 #define MIPID_CMD_WRITE_DISP_BRIGHTNESS 0x51
48 #define MIPID_CMD_READ_DISP_BRIGHTNESS 0x52
49 #define MIPID_CMD_WRITE_CTRL_DISP 0x53
51 #define CTRL_DISP_BRIGHTNESS_CTRL_ON (1 << 5)
52 #define CTRL_DISP_AMBIENT_LIGHT_CTRL_ON (1 << 4)
53 #define CTRL_DISP_BACKLIGHT_ON (1 << 2)
54 #define CTRL_DISP_AUTO_BRIGHTNESS_ON (1 << 1)
56 #define MIPID_CMD_READ_CTRL_DISP 0x54
57 #define MIPID_CMD_WRITE_CABC 0x55
58 #define MIPID_CMD_READ_CABC 0x56
60 #define MIPID_VER_LPH8923 3
61 #define MIPID_VER_LS041Y3 4
62 #define MIPID_VER_L4F00311 8
63 #define MIPID_VER_ACX565AKM 9
65 struct panel_drv_data
{
66 struct omap_dss_device dssdev
;
67 struct omap_dss_device
*in
;
81 unsigned long hw_guard_end
; /* next value of jiffies
83 next sleep in/out command */
84 unsigned long hw_guard_wait
; /* max guard time in jiffies */
86 struct spi_device
*spi
;
89 struct backlight_device
*bl_dev
;
92 static const struct videomode acx565akm_panel_vm
= {
95 .pixelclock
= 24000000,
103 .flags
= DISPLAY_FLAGS_HSYNC_LOW
| DISPLAY_FLAGS_VSYNC_LOW
|
104 DISPLAY_FLAGS_DE_HIGH
| DISPLAY_FLAGS_SYNC_NEGEDGE
|
105 DISPLAY_FLAGS_PIXDATA_POSEDGE
,
108 #define to_panel_data(p) container_of(p, struct panel_drv_data, dssdev)
110 static void acx565akm_transfer(struct panel_drv_data
*ddata
, int cmd
,
111 const u8
*wbuf
, int wlen
, u8
*rbuf
, int rlen
)
113 struct spi_message m
;
114 struct spi_transfer
*x
, xfer
[5];
117 BUG_ON(ddata
->spi
== NULL
);
119 spi_message_init(&m
);
121 memset(xfer
, 0, sizeof(xfer
));
126 x
->bits_per_word
= 9;
129 if (rlen
> 1 && wlen
== 0) {
131 * Between the command and the response data there is a
132 * dummy clock cycle. Add an extra bit after the command
133 * word to account for this.
135 x
->bits_per_word
= 10;
138 spi_message_add_tail(x
, &m
);
144 x
->bits_per_word
= 9;
145 spi_message_add_tail(x
, &m
);
152 spi_message_add_tail(x
, &m
);
155 r
= spi_sync(ddata
->spi
, &m
);
157 dev_dbg(&ddata
->spi
->dev
, "spi_sync %d\n", r
);
160 static inline void acx565akm_cmd(struct panel_drv_data
*ddata
, int cmd
)
162 acx565akm_transfer(ddata
, cmd
, NULL
, 0, NULL
, 0);
165 static inline void acx565akm_write(struct panel_drv_data
*ddata
,
166 int reg
, const u8
*buf
, int len
)
168 acx565akm_transfer(ddata
, reg
, buf
, len
, NULL
, 0);
171 static inline void acx565akm_read(struct panel_drv_data
*ddata
,
172 int reg
, u8
*buf
, int len
)
174 acx565akm_transfer(ddata
, reg
, NULL
, 0, buf
, len
);
177 static void hw_guard_start(struct panel_drv_data
*ddata
, int guard_msec
)
179 ddata
->hw_guard_wait
= msecs_to_jiffies(guard_msec
);
180 ddata
->hw_guard_end
= jiffies
+ ddata
->hw_guard_wait
;
183 static void hw_guard_wait(struct panel_drv_data
*ddata
)
185 unsigned long wait
= ddata
->hw_guard_end
- jiffies
;
187 if ((long)wait
> 0 && wait
<= ddata
->hw_guard_wait
) {
188 set_current_state(TASK_UNINTERRUPTIBLE
);
189 schedule_timeout(wait
);
193 static void set_sleep_mode(struct panel_drv_data
*ddata
, int on
)
198 cmd
= MIPID_CMD_SLEEP_IN
;
200 cmd
= MIPID_CMD_SLEEP_OUT
;
202 * We have to keep 120msec between sleep in/out commands.
205 hw_guard_wait(ddata
);
206 acx565akm_cmd(ddata
, cmd
);
207 hw_guard_start(ddata
, 120);
210 static void set_display_state(struct panel_drv_data
*ddata
, int enabled
)
212 int cmd
= enabled
? MIPID_CMD_DISP_ON
: MIPID_CMD_DISP_OFF
;
214 acx565akm_cmd(ddata
, cmd
);
217 static int panel_enabled(struct panel_drv_data
*ddata
)
222 acx565akm_read(ddata
, MIPID_CMD_READ_DISP_STATUS
,
223 (u8
*)&disp_status
, 4);
224 disp_status
= __be32_to_cpu(disp_status
);
225 enabled
= (disp_status
& (1 << 17)) && (disp_status
& (1 << 10));
226 dev_dbg(&ddata
->spi
->dev
,
227 "LCD panel %senabled by bootloader (status 0x%04x)\n",
228 enabled
? "" : "not ", disp_status
);
232 static int panel_detect(struct panel_drv_data
*ddata
)
234 acx565akm_read(ddata
, MIPID_CMD_READ_DISP_ID
, ddata
->display_id
, 3);
235 dev_dbg(&ddata
->spi
->dev
, "MIPI display ID: %02x%02x%02x\n",
236 ddata
->display_id
[0],
237 ddata
->display_id
[1],
238 ddata
->display_id
[2]);
240 switch (ddata
->display_id
[0]) {
242 ddata
->model
= MIPID_VER_ACX565AKM
;
243 ddata
->name
= "acx565akm";
248 ddata
->model
= MIPID_VER_L4F00311
;
249 ddata
->name
= "l4f00311";
252 ddata
->model
= MIPID_VER_LPH8923
;
253 ddata
->name
= "lph8923";
256 ddata
->model
= MIPID_VER_LS041Y3
;
257 ddata
->name
= "ls041y3";
260 ddata
->name
= "unknown";
261 dev_err(&ddata
->spi
->dev
, "invalid display ID\n");
265 ddata
->revision
= ddata
->display_id
[1];
267 dev_info(&ddata
->spi
->dev
, "omapfb: %s rev %02x LCD detected\n",
268 ddata
->name
, ddata
->revision
);
273 /*----------------------Backlight Control-------------------------*/
275 static void enable_backlight_ctrl(struct panel_drv_data
*ddata
, int enable
)
279 acx565akm_read(ddata
, MIPID_CMD_READ_CTRL_DISP
, (u8
*)&ctrl
, 1);
281 ctrl
|= CTRL_DISP_BRIGHTNESS_CTRL_ON
|
282 CTRL_DISP_BACKLIGHT_ON
;
284 ctrl
&= ~(CTRL_DISP_BRIGHTNESS_CTRL_ON
|
285 CTRL_DISP_BACKLIGHT_ON
);
289 acx565akm_write(ddata
, MIPID_CMD_WRITE_CTRL_DISP
, (u8
*)&ctrl
, 2);
292 static void set_cabc_mode(struct panel_drv_data
*ddata
, unsigned mode
)
296 ddata
->cabc_mode
= mode
;
300 acx565akm_read(ddata
, MIPID_CMD_READ_CABC
, (u8
*)&cabc_ctrl
, 1);
302 cabc_ctrl
|= (1 << 8) | (mode
& 3);
303 acx565akm_write(ddata
, MIPID_CMD_WRITE_CABC
, (u8
*)&cabc_ctrl
, 2);
306 static unsigned get_cabc_mode(struct panel_drv_data
*ddata
)
308 return ddata
->cabc_mode
;
311 static unsigned get_hw_cabc_mode(struct panel_drv_data
*ddata
)
315 acx565akm_read(ddata
, MIPID_CMD_READ_CABC
, &cabc_ctrl
, 1);
316 return cabc_ctrl
& 3;
319 static void acx565akm_set_brightness(struct panel_drv_data
*ddata
, int level
)
323 bv
= level
| (1 << 8);
324 acx565akm_write(ddata
, MIPID_CMD_WRITE_DISP_BRIGHTNESS
, (u8
*)&bv
, 2);
327 enable_backlight_ctrl(ddata
, 1);
329 enable_backlight_ctrl(ddata
, 0);
332 static int acx565akm_get_actual_brightness(struct panel_drv_data
*ddata
)
336 acx565akm_read(ddata
, MIPID_CMD_READ_DISP_BRIGHTNESS
, &bv
, 1);
342 static int acx565akm_bl_update_status(struct backlight_device
*dev
)
344 struct panel_drv_data
*ddata
= dev_get_drvdata(&dev
->dev
);
347 dev_dbg(&ddata
->spi
->dev
, "%s\n", __func__
);
349 if (dev
->props
.fb_blank
== FB_BLANK_UNBLANK
&&
350 dev
->props
.power
== FB_BLANK_UNBLANK
)
351 level
= dev
->props
.brightness
;
356 acx565akm_set_brightness(ddata
, level
);
363 static int acx565akm_bl_get_intensity(struct backlight_device
*dev
)
365 struct panel_drv_data
*ddata
= dev_get_drvdata(&dev
->dev
);
367 dev_dbg(&dev
->dev
, "%s\n", __func__
);
372 if (dev
->props
.fb_blank
== FB_BLANK_UNBLANK
&&
373 dev
->props
.power
== FB_BLANK_UNBLANK
) {
375 return acx565akm_get_actual_brightness(ddata
);
377 return dev
->props
.brightness
;
383 static int acx565akm_bl_update_status_locked(struct backlight_device
*dev
)
385 struct panel_drv_data
*ddata
= dev_get_drvdata(&dev
->dev
);
388 mutex_lock(&ddata
->mutex
);
389 r
= acx565akm_bl_update_status(dev
);
390 mutex_unlock(&ddata
->mutex
);
395 static int acx565akm_bl_get_intensity_locked(struct backlight_device
*dev
)
397 struct panel_drv_data
*ddata
= dev_get_drvdata(&dev
->dev
);
400 mutex_lock(&ddata
->mutex
);
401 r
= acx565akm_bl_get_intensity(dev
);
402 mutex_unlock(&ddata
->mutex
);
407 static const struct backlight_ops acx565akm_bl_ops
= {
408 .get_brightness
= acx565akm_bl_get_intensity_locked
,
409 .update_status
= acx565akm_bl_update_status_locked
,
412 /*--------------------Auto Brightness control via Sysfs---------------------*/
414 static const char * const cabc_modes
[] = {
415 "off", /* always used when CABC is not supported */
421 static ssize_t
show_cabc_mode(struct device
*dev
,
422 struct device_attribute
*attr
,
425 struct panel_drv_data
*ddata
= dev_get_drvdata(dev
);
426 const char *mode_str
;
430 if (!ddata
->has_cabc
)
433 mode
= get_cabc_mode(ddata
);
434 mode_str
= "unknown";
435 if (mode
>= 0 && mode
< ARRAY_SIZE(cabc_modes
))
436 mode_str
= cabc_modes
[mode
];
437 len
= snprintf(buf
, PAGE_SIZE
, "%s\n", mode_str
);
439 return len
< PAGE_SIZE
- 1 ? len
: PAGE_SIZE
- 1;
442 static ssize_t
store_cabc_mode(struct device
*dev
,
443 struct device_attribute
*attr
,
444 const char *buf
, size_t count
)
446 struct panel_drv_data
*ddata
= dev_get_drvdata(dev
);
449 for (i
= 0; i
< ARRAY_SIZE(cabc_modes
); i
++) {
450 const char *mode_str
= cabc_modes
[i
];
451 int cmp_len
= strlen(mode_str
);
453 if (count
> 0 && buf
[count
- 1] == '\n')
455 if (count
!= cmp_len
)
458 if (strncmp(buf
, mode_str
, cmp_len
) == 0)
462 if (i
== ARRAY_SIZE(cabc_modes
))
465 if (!ddata
->has_cabc
&& i
!= 0)
468 mutex_lock(&ddata
->mutex
);
469 set_cabc_mode(ddata
, i
);
470 mutex_unlock(&ddata
->mutex
);
475 static ssize_t
show_cabc_available_modes(struct device
*dev
,
476 struct device_attribute
*attr
,
479 struct panel_drv_data
*ddata
= dev_get_drvdata(dev
);
483 if (!ddata
->has_cabc
)
484 return snprintf(buf
, PAGE_SIZE
, "%s\n", cabc_modes
[0]);
487 len
< PAGE_SIZE
&& i
< ARRAY_SIZE(cabc_modes
); i
++)
488 len
+= snprintf(&buf
[len
], PAGE_SIZE
- len
, "%s%s%s",
489 i
? " " : "", cabc_modes
[i
],
490 i
== ARRAY_SIZE(cabc_modes
) - 1 ? "\n" : "");
492 return len
< PAGE_SIZE
? len
: PAGE_SIZE
- 1;
495 static DEVICE_ATTR(cabc_mode
, S_IRUGO
| S_IWUSR
,
496 show_cabc_mode
, store_cabc_mode
);
497 static DEVICE_ATTR(cabc_available_modes
, S_IRUGO
,
498 show_cabc_available_modes
, NULL
);
500 static struct attribute
*bldev_attrs
[] = {
501 &dev_attr_cabc_mode
.attr
,
502 &dev_attr_cabc_available_modes
.attr
,
506 static const struct attribute_group bldev_attr_group
= {
507 .attrs
= bldev_attrs
,
510 static int acx565akm_connect(struct omap_dss_device
*dssdev
)
512 struct panel_drv_data
*ddata
= to_panel_data(dssdev
);
513 struct omap_dss_device
*in
= ddata
->in
;
516 if (omapdss_device_is_connected(dssdev
))
519 r
= in
->ops
.sdi
->connect(in
, dssdev
);
526 static void acx565akm_disconnect(struct omap_dss_device
*dssdev
)
528 struct panel_drv_data
*ddata
= to_panel_data(dssdev
);
529 struct omap_dss_device
*in
= ddata
->in
;
531 if (!omapdss_device_is_connected(dssdev
))
534 in
->ops
.sdi
->disconnect(in
, dssdev
);
537 static int acx565akm_panel_power_on(struct omap_dss_device
*dssdev
)
539 struct panel_drv_data
*ddata
= to_panel_data(dssdev
);
540 struct omap_dss_device
*in
= ddata
->in
;
543 dev_dbg(&ddata
->spi
->dev
, "%s\n", __func__
);
545 in
->ops
.sdi
->set_timings(in
, &ddata
->vm
);
547 r
= in
->ops
.sdi
->enable(in
);
549 pr_err("%s sdi enable failed\n", __func__
);
556 if (gpio_is_valid(ddata
->reset_gpio
))
557 gpio_set_value(ddata
->reset_gpio
, 1);
559 if (ddata
->enabled
) {
560 dev_dbg(&ddata
->spi
->dev
, "panel already enabled\n");
565 * We have to meet all the following delay requirements:
566 * 1. tRW: reset pulse width 10usec (7.12.1)
567 * 2. tRT: reset cancel time 5msec (7.12.1)
568 * 3. Providing PCLK,HS,VS signals for 2 frames = ~50msec worst
570 * 4. 120msec before the sleep out command (7.12.1)
574 set_sleep_mode(ddata
, 0);
577 /* 5msec between sleep out and the next command. (8.2.16) */
578 usleep_range(5000, 10000);
579 set_display_state(ddata
, 1);
580 set_cabc_mode(ddata
, ddata
->cabc_mode
);
582 return acx565akm_bl_update_status(ddata
->bl_dev
);
585 static void acx565akm_panel_power_off(struct omap_dss_device
*dssdev
)
587 struct panel_drv_data
*ddata
= to_panel_data(dssdev
);
588 struct omap_dss_device
*in
= ddata
->in
;
590 dev_dbg(dssdev
->dev
, "%s\n", __func__
);
595 set_display_state(ddata
, 0);
596 set_sleep_mode(ddata
, 1);
599 * We have to provide PCLK,HS,VS signals for 2 frames (worst case
600 * ~50msec) after sending the sleep in command and asserting the
601 * reset signal. We probably could assert the reset w/o the delay
602 * but we still delay to avoid possible artifacts. (7.6.1)
606 if (gpio_is_valid(ddata
->reset_gpio
))
607 gpio_set_value(ddata
->reset_gpio
, 0);
609 /* FIXME need to tweak this delay */
612 in
->ops
.sdi
->disable(in
);
615 static int acx565akm_enable(struct omap_dss_device
*dssdev
)
617 struct panel_drv_data
*ddata
= to_panel_data(dssdev
);
620 dev_dbg(dssdev
->dev
, "%s\n", __func__
);
622 if (!omapdss_device_is_connected(dssdev
))
625 if (omapdss_device_is_enabled(dssdev
))
628 mutex_lock(&ddata
->mutex
);
629 r
= acx565akm_panel_power_on(dssdev
);
630 mutex_unlock(&ddata
->mutex
);
634 dssdev
->state
= OMAP_DSS_DISPLAY_ACTIVE
;
639 static void acx565akm_disable(struct omap_dss_device
*dssdev
)
641 struct panel_drv_data
*ddata
= to_panel_data(dssdev
);
643 dev_dbg(dssdev
->dev
, "%s\n", __func__
);
645 if (!omapdss_device_is_enabled(dssdev
))
648 mutex_lock(&ddata
->mutex
);
649 acx565akm_panel_power_off(dssdev
);
650 mutex_unlock(&ddata
->mutex
);
652 dssdev
->state
= OMAP_DSS_DISPLAY_DISABLED
;
655 static void acx565akm_set_timings(struct omap_dss_device
*dssdev
,
656 struct videomode
*vm
)
658 struct panel_drv_data
*ddata
= to_panel_data(dssdev
);
659 struct omap_dss_device
*in
= ddata
->in
;
662 dssdev
->panel
.vm
= *vm
;
664 in
->ops
.sdi
->set_timings(in
, vm
);
667 static void acx565akm_get_timings(struct omap_dss_device
*dssdev
,
668 struct videomode
*vm
)
670 struct panel_drv_data
*ddata
= to_panel_data(dssdev
);
675 static int acx565akm_check_timings(struct omap_dss_device
*dssdev
,
676 struct videomode
*vm
)
678 struct panel_drv_data
*ddata
= to_panel_data(dssdev
);
679 struct omap_dss_device
*in
= ddata
->in
;
681 return in
->ops
.sdi
->check_timings(in
, vm
);
684 static struct omap_dss_driver acx565akm_ops
= {
685 .connect
= acx565akm_connect
,
686 .disconnect
= acx565akm_disconnect
,
688 .enable
= acx565akm_enable
,
689 .disable
= acx565akm_disable
,
691 .set_timings
= acx565akm_set_timings
,
692 .get_timings
= acx565akm_get_timings
,
693 .check_timings
= acx565akm_check_timings
,
696 static int acx565akm_probe_of(struct spi_device
*spi
)
698 struct panel_drv_data
*ddata
= dev_get_drvdata(&spi
->dev
);
699 struct device_node
*np
= spi
->dev
.of_node
;
701 ddata
->reset_gpio
= of_get_named_gpio(np
, "reset-gpios", 0);
703 ddata
->in
= omapdss_of_find_source_for_first_ep(np
);
704 if (IS_ERR(ddata
->in
)) {
705 dev_err(&spi
->dev
, "failed to find video source\n");
706 return PTR_ERR(ddata
->in
);
712 static int acx565akm_probe(struct spi_device
*spi
)
714 struct panel_drv_data
*ddata
;
715 struct omap_dss_device
*dssdev
;
716 struct backlight_device
*bldev
;
717 int max_brightness
, brightness
;
718 struct backlight_properties props
;
721 dev_dbg(&spi
->dev
, "%s\n", __func__
);
723 if (!spi
->dev
.of_node
)
726 spi
->mode
= SPI_MODE_3
;
728 ddata
= devm_kzalloc(&spi
->dev
, sizeof(*ddata
), GFP_KERNEL
);
732 dev_set_drvdata(&spi
->dev
, ddata
);
736 mutex_init(&ddata
->mutex
);
738 r
= acx565akm_probe_of(spi
);
742 if (gpio_is_valid(ddata
->reset_gpio
)) {
743 r
= devm_gpio_request_one(&spi
->dev
, ddata
->reset_gpio
,
744 GPIOF_OUT_INIT_LOW
, "lcd reset");
749 if (gpio_is_valid(ddata
->reset_gpio
))
750 gpio_set_value(ddata
->reset_gpio
, 1);
753 * After reset we have to wait 5 msec before the first
754 * command can be sent.
756 usleep_range(5000, 10000);
758 ddata
->enabled
= panel_enabled(ddata
);
760 r
= panel_detect(ddata
);
762 if (!ddata
->enabled
&& gpio_is_valid(ddata
->reset_gpio
))
763 gpio_set_value(ddata
->reset_gpio
, 0);
766 dev_err(&spi
->dev
, "%s panel detect error\n", __func__
);
770 memset(&props
, 0, sizeof(props
));
771 props
.fb_blank
= FB_BLANK_UNBLANK
;
772 props
.power
= FB_BLANK_UNBLANK
;
773 props
.type
= BACKLIGHT_RAW
;
775 bldev
= backlight_device_register("acx565akm", &ddata
->spi
->dev
,
776 ddata
, &acx565akm_bl_ops
, &props
);
781 ddata
->bl_dev
= bldev
;
782 if (ddata
->has_cabc
) {
783 r
= sysfs_create_group(&bldev
->dev
.kobj
, &bldev_attr_group
);
786 "%s failed to create sysfs files\n", __func__
);
789 ddata
->cabc_mode
= get_hw_cabc_mode(ddata
);
792 max_brightness
= 255;
795 brightness
= acx565akm_get_actual_brightness(ddata
);
799 bldev
->props
.max_brightness
= max_brightness
;
800 bldev
->props
.brightness
= brightness
;
802 acx565akm_bl_update_status(bldev
);
805 ddata
->vm
= acx565akm_panel_vm
;
807 dssdev
= &ddata
->dssdev
;
808 dssdev
->dev
= &spi
->dev
;
809 dssdev
->driver
= &acx565akm_ops
;
810 dssdev
->type
= OMAP_DISPLAY_TYPE_SDI
;
811 dssdev
->owner
= THIS_MODULE
;
812 dssdev
->panel
.vm
= ddata
->vm
;
814 r
= omapdss_register_display(dssdev
);
816 dev_err(&spi
->dev
, "Failed to register panel\n");
823 sysfs_remove_group(&bldev
->dev
.kobj
, &bldev_attr_group
);
825 backlight_device_unregister(bldev
);
829 omap_dss_put_device(ddata
->in
);
833 static int acx565akm_remove(struct spi_device
*spi
)
835 struct panel_drv_data
*ddata
= dev_get_drvdata(&spi
->dev
);
836 struct omap_dss_device
*dssdev
= &ddata
->dssdev
;
837 struct omap_dss_device
*in
= ddata
->in
;
839 dev_dbg(&ddata
->spi
->dev
, "%s\n", __func__
);
841 sysfs_remove_group(&ddata
->bl_dev
->dev
.kobj
, &bldev_attr_group
);
842 backlight_device_unregister(ddata
->bl_dev
);
844 omapdss_unregister_display(dssdev
);
846 acx565akm_disable(dssdev
);
847 acx565akm_disconnect(dssdev
);
849 omap_dss_put_device(in
);
854 static const struct of_device_id acx565akm_of_match
[] = {
855 { .compatible
= "omapdss,sony,acx565akm", },
858 MODULE_DEVICE_TABLE(of
, acx565akm_of_match
);
860 static struct spi_driver acx565akm_driver
= {
863 .of_match_table
= acx565akm_of_match
,
864 .suppress_bind_attrs
= true,
866 .probe
= acx565akm_probe
,
867 .remove
= acx565akm_remove
,
870 module_spi_driver(acx565akm_driver
);
872 MODULE_ALIAS("spi:sony,acx565akm");
873 MODULE_AUTHOR("Nokia Corporation");
874 MODULE_DESCRIPTION("acx565akm LCD Driver");
875 MODULE_LICENSE("GPL");