2 * Common code for AUO-K190X framebuffer drivers
4 * Copyright (C) 2012 Heiko Stuebner <heiko@sntech.de>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 #include <linux/module.h>
12 #include <linux/kernel.h>
13 #include <linux/gpio.h>
14 #include <linux/platform_device.h>
15 #include <linux/pm_runtime.h>
17 #include <linux/delay.h>
18 #include <linux/uaccess.h>
19 #include <linux/vmalloc.h>
20 #include <linux/regulator/consumer.h>
22 #include <video/auo_k190xfb.h>
24 #include "auo_k190x.h"
31 /* table of panel specific parameters to be indexed into by the board drivers */
32 static struct panel_info panel_table[] = {
34 [AUOK190X_RESOLUTION_800_600] = {
39 [AUOK190X_RESOLUTION_1024_768] = {
46 * private I80 interface to the board driver
49 static void auok190x_issue_data(struct auok190xfb_par *par, u16 data)
51 par->board->set_ctl(par, AUOK190X_I80_WR, 0);
52 par->board->set_hdb(par, data);
53 par->board->set_ctl(par, AUOK190X_I80_WR, 1);
56 static void auok190x_issue_cmd(struct auok190xfb_par *par, u16 data)
58 par->board->set_ctl(par, AUOK190X_I80_DC, 0);
59 auok190x_issue_data(par, data);
60 par->board->set_ctl(par, AUOK190X_I80_DC, 1);
63 static int auok190x_issue_pixels(struct auok190xfb_par *par, int size,
66 struct device *dev = par->info->device;
71 dev_err(dev, "issue_pixels: size %d must be a multiple of 4\n",
76 for (i = 0; i < (size >> 1); i++) {
77 par->board->set_ctl(par, AUOK190X_I80_WR, 0);
79 /* simple reduction of 8bit staticgray to 4bit gray
80 * combines 4 * 4bit pixel values into a 16bit value
82 tmp = (data[2*i] & 0xF0) >> 4;
83 tmp |= (data[2*i] & 0xF000) >> 8;
84 tmp |= (data[2*i+1] & 0xF0) << 4;
85 tmp |= (data[2*i+1] & 0xF000);
87 par->board->set_hdb(par, tmp);
88 par->board->set_ctl(par, AUOK190X_I80_WR, 1);
94 static u16 auok190x_read_data(struct auok190xfb_par *par)
98 par->board->set_ctl(par, AUOK190X_I80_OE, 0);
99 data = par->board->get_hdb(par);
100 par->board->set_ctl(par, AUOK190X_I80_OE, 1);
106 * Command interface for the controller drivers
109 void auok190x_send_command_nowait(struct auok190xfb_par *par, u16 data)
111 par->board->set_ctl(par, AUOK190X_I80_CS, 0);
112 auok190x_issue_cmd(par, data);
113 par->board->set_ctl(par, AUOK190X_I80_CS, 1);
115 EXPORT_SYMBOL_GPL(auok190x_send_command_nowait);
117 void auok190x_send_cmdargs_nowait(struct auok190xfb_par *par, u16 cmd,
122 par->board->set_ctl(par, AUOK190X_I80_CS, 0);
123 auok190x_issue_cmd(par, cmd);
125 for (i = 0; i < argc; i++)
126 auok190x_issue_data(par, argv[i]);
127 par->board->set_ctl(par, AUOK190X_I80_CS, 1);
129 EXPORT_SYMBOL_GPL(auok190x_send_cmdargs_nowait);
131 int auok190x_send_command(struct auok190xfb_par *par, u16 data)
135 ret = par->board->wait_for_rdy(par);
139 auok190x_send_command_nowait(par, data);
142 EXPORT_SYMBOL_GPL(auok190x_send_command);
144 int auok190x_send_cmdargs(struct auok190xfb_par *par, u16 cmd,
149 ret = par->board->wait_for_rdy(par);
153 auok190x_send_cmdargs_nowait(par, cmd, argc, argv);
156 EXPORT_SYMBOL_GPL(auok190x_send_cmdargs);
158 int auok190x_read_cmdargs(struct auok190xfb_par *par, u16 cmd,
163 ret = par->board->wait_for_rdy(par);
167 par->board->set_ctl(par, AUOK190X_I80_CS, 0);
168 auok190x_issue_cmd(par, cmd);
170 for (i = 0; i < argc; i++)
171 argv[i] = auok190x_read_data(par);
172 par->board->set_ctl(par, AUOK190X_I80_CS, 1);
176 EXPORT_SYMBOL_GPL(auok190x_read_cmdargs);
178 void auok190x_send_cmdargs_pixels_nowait(struct auok190xfb_par *par, u16 cmd,
179 int argc, u16 *argv, int size, u16 *data)
183 par->board->set_ctl(par, AUOK190X_I80_CS, 0);
185 auok190x_issue_cmd(par, cmd);
187 for (i = 0; i < argc; i++)
188 auok190x_issue_data(par, argv[i]);
190 auok190x_issue_pixels(par, size, data);
192 par->board->set_ctl(par, AUOK190X_I80_CS, 1);
194 EXPORT_SYMBOL_GPL(auok190x_send_cmdargs_pixels_nowait);
196 int auok190x_send_cmdargs_pixels(struct auok190xfb_par *par, u16 cmd,
197 int argc, u16 *argv, int size, u16 *data)
201 ret = par->board->wait_for_rdy(par);
205 auok190x_send_cmdargs_pixels_nowait(par, cmd, argc, argv, size, data);
209 EXPORT_SYMBOL_GPL(auok190x_send_cmdargs_pixels);
212 * fbdefio callbacks - common on both controllers.
215 static void auok190xfb_dpy_first_io(struct fb_info *info)
217 /* tell runtime-pm that we wish to use the device in a short time */
218 pm_runtime_get(info->device);
221 /* this is called back from the deferred io workqueue */
222 static void auok190xfb_dpy_deferred_io(struct fb_info *info,
223 struct list_head *pagelist)
225 struct fb_deferred_io *fbdefio = info->fbdefio;
226 struct auok190xfb_par *par = info->par;
227 u16 line_length = info->fix.line_length;
228 u16 yres = info->var.yres;
235 if (!list_empty(pagelist))
236 /* the device resume should've been requested through first_io,
237 * if the resume did not finish until now, wait for it.
239 pm_runtime_barrier(info->device);
241 /* We reached this via the fsync or some other way.
242 * In either case the first_io function did not run,
243 * so we runtime_resume the device here synchronously.
245 pm_runtime_get_sync(info->device);
247 /* Do a full screen update every n updates to prevent
248 * excessive darkening of the Sipix display.
249 * If we do this, there is no need to walk the pages.
251 if (par->need_refresh(par)) {
252 par->update_all(par);
256 /* height increment is fixed per page */
257 h_inc = DIV_ROUND_UP(PAGE_SIZE , line_length);
259 /* calculate number of pages from pixel height */
260 threshold = par->consecutive_threshold / h_inc;
264 /* walk the written page list and swizzle the data */
265 list_for_each_entry(cur, &fbdefio->pagelist, lru) {
266 if (prev_index < 0) {
267 /* just starting so assign first page */
268 y1 = (cur->index << PAGE_SHIFT) / line_length;
270 } else if ((cur->index - prev_index) <= threshold) {
271 /* page is within our threshold for single updates */
272 h += h_inc * (cur->index - prev_index);
274 /* page not consecutive, issue previous update first */
275 par->update_partial(par, y1, y1 + h);
277 /* start over with our non consecutive page */
278 y1 = (cur->index << PAGE_SHIFT) / line_length;
281 prev_index = cur->index;
284 /* if we still have any pages to update we do so now */
286 /* its a full screen update, just do it */
287 par->update_all(par);
289 par->update_partial(par, y1, min((u16) (y1 + h), yres));
292 pm_runtime_mark_last_busy(info->device);
293 pm_runtime_put_autosuspend(info->device);
297 * framebuffer operations
301 * this is the slow path from userspace. they can seek and write to
302 * the fb. it's inefficient to do anything less than a full screen draw
304 static ssize_t auok190xfb_write(struct fb_info *info, const char __user *buf,
305 size_t count, loff_t *ppos)
307 struct auok190xfb_par *par = info->par;
308 unsigned long p = *ppos;
311 unsigned long total_size;
313 if (info->state != FBINFO_STATE_RUNNING)
316 total_size = info->fix.smem_len;
321 if (count > total_size) {
326 if (count + p > total_size) {
330 count = total_size - p;
333 dst = (void *)(info->screen_base + p);
335 if (copy_from_user(dst, buf, count))
341 par->update_all(par);
343 return (err) ? err : count;
346 static void auok190xfb_fillrect(struct fb_info *info,
347 const struct fb_fillrect *rect)
349 struct auok190xfb_par *par = info->par;
351 sys_fillrect(info, rect);
353 par->update_all(par);
356 static void auok190xfb_copyarea(struct fb_info *info,
357 const struct fb_copyarea *area)
359 struct auok190xfb_par *par = info->par;
361 sys_copyarea(info, area);
363 par->update_all(par);
366 static void auok190xfb_imageblit(struct fb_info *info,
367 const struct fb_image *image)
369 struct auok190xfb_par *par = info->par;
371 sys_imageblit(info, image);
373 par->update_all(par);
376 static int auok190xfb_check_var(struct fb_var_screeninfo *var,
377 struct fb_info *info)
379 struct device *dev = info->device;
380 struct auok190xfb_par *par = info->par;
381 struct panel_info *panel = &panel_table[par->resolution];
388 if (par->rotation & 1) {
389 var->xres = panel->h;
390 var->yres = panel->w;
392 var->xres = panel->w;
393 var->yres = panel->h;
396 var->xres_virtual = var->xres;
397 var->yres_virtual = var->yres;
403 size = var->xres_virtual * var->yres_virtual * var->bits_per_pixel / 8;
404 if (size > info->fix.smem_len) {
405 dev_err(dev, "Memory limit exceeded, requested %dK\n",
413 static struct fb_ops auok190xfb_ops = {
414 .owner = THIS_MODULE,
415 .fb_read = fb_sys_read,
416 .fb_write = auok190xfb_write,
417 .fb_fillrect = auok190xfb_fillrect,
418 .fb_copyarea = auok190xfb_copyarea,
419 .fb_imageblit = auok190xfb_imageblit,
420 .fb_check_var = auok190xfb_check_var,
424 * Controller-functions common to both K1900 and K1901
427 static int auok190x_read_temperature(struct auok190xfb_par *par)
429 struct device *dev = par->info->device;
433 pm_runtime_get_sync(dev);
435 mutex_lock(&(par->io_lock));
437 auok190x_read_cmdargs(par, AUOK190X_CMD_READ_VERSION, 4, data);
439 mutex_unlock(&(par->io_lock));
441 pm_runtime_mark_last_busy(dev);
442 pm_runtime_put_autosuspend(dev);
444 /* sanitize and split of half-degrees for now */
445 temp = ((data[0] & AUOK190X_VERSION_TEMP_MASK) >> 1);
447 /* handle positive and negative temperatures */
449 return (255 - temp + 1) * (-1);
454 static void auok190x_identify(struct auok190xfb_par *par)
456 struct device *dev = par->info->device;
459 pm_runtime_get_sync(dev);
461 mutex_lock(&(par->io_lock));
463 auok190x_read_cmdargs(par, AUOK190X_CMD_READ_VERSION, 4, data);
465 mutex_unlock(&(par->io_lock));
467 par->epd_type = data[1] & AUOK190X_VERSION_TEMP_MASK;
469 par->panel_size_int = AUOK190X_VERSION_SIZE_INT(data[2]);
470 par->panel_size_float = AUOK190X_VERSION_SIZE_FLOAT(data[2]);
471 par->panel_model = AUOK190X_VERSION_MODEL(data[2]);
473 par->tcon_version = AUOK190X_VERSION_TCON(data[3]);
474 par->lut_version = AUOK190X_VERSION_LUT(data[3]);
476 dev_dbg(dev, "panel %d.%din, model 0x%x, EPD 0x%x TCON-rev 0x%x, LUT-rev 0x%x",
477 par->panel_size_int, par->panel_size_float, par->panel_model,
478 par->epd_type, par->tcon_version, par->lut_version);
480 pm_runtime_mark_last_busy(dev);
481 pm_runtime_put_autosuspend(dev);
488 static ssize_t update_mode_show(struct device *dev,
489 struct device_attribute *attr, char *buf)
491 struct fb_info *info = dev_get_drvdata(dev);
492 struct auok190xfb_par *par = info->par;
494 return sprintf(buf, "%d\n", par->update_mode);
497 static ssize_t update_mode_store(struct device *dev,
498 struct device_attribute *attr,
499 const char *buf, size_t count)
501 struct fb_info *info = dev_get_drvdata(dev);
502 struct auok190xfb_par *par = info->par;
505 ret = kstrtoint(buf, 10, &mode);
509 par->update_mode = mode;
511 /* if we enter a better mode, do a full update */
512 if (par->last_mode > 1 && mode < par->last_mode)
513 par->update_all(par);
518 static ssize_t flash_show(struct device *dev, struct device_attribute *attr,
521 struct fb_info *info = dev_get_drvdata(dev);
522 struct auok190xfb_par *par = info->par;
524 return sprintf(buf, "%d\n", par->flash);
527 static ssize_t flash_store(struct device *dev, struct device_attribute *attr,
528 const char *buf, size_t count)
530 struct fb_info *info = dev_get_drvdata(dev);
531 struct auok190xfb_par *par = info->par;
534 ret = kstrtoint(buf, 10, &flash);
546 static ssize_t temp_show(struct device *dev, struct device_attribute *attr,
549 struct fb_info *info = dev_get_drvdata(dev);
550 struct auok190xfb_par *par = info->par;
553 temp = auok190x_read_temperature(par);
554 return sprintf(buf, "%d\n", temp);
557 static DEVICE_ATTR(update_mode, 0644, update_mode_show, update_mode_store);
558 static DEVICE_ATTR(flash, 0644, flash_show, flash_store);
559 static DEVICE_ATTR(temp, 0644, temp_show, NULL);
561 static struct attribute *auok190x_attributes[] = {
562 &dev_attr_update_mode.attr,
563 &dev_attr_flash.attr,
568 static const struct attribute_group auok190x_attr_group = {
569 .attrs = auok190x_attributes,
572 static int auok190x_power(struct auok190xfb_par *par, bool on)
574 struct auok190x_board *board = par->board;
578 /* We should maintain POWER up for at least 80ms before set
579 * RST_N and SLP_N to high (TCON spec 20100803_v35 p59)
581 ret = regulator_enable(par->regulator);
586 gpio_set_value(board->gpio_nrst, 1);
587 gpio_set_value(board->gpio_nsleep, 1);
590 regulator_disable(par->regulator);
591 gpio_set_value(board->gpio_nrst, 0);
592 gpio_set_value(board->gpio_nsleep, 0);
599 * Recovery - powercycle the controller
602 static void auok190x_recover(struct auok190xfb_par *par)
604 struct device *dev = par->info->device;
606 auok190x_power(par, 0);
608 auok190x_power(par, 1);
610 /* after powercycling the device, it's always active */
611 pm_runtime_set_active(dev);
616 /* wait for init to complete */
617 par->board->wait_for_rdy(par);
625 static int auok190x_runtime_suspend(struct device *dev)
627 struct platform_device *pdev = to_platform_device(dev);
628 struct fb_info *info = platform_get_drvdata(pdev);
629 struct auok190xfb_par *par = info->par;
630 struct auok190x_board *board = par->board;
633 /* take and keep the lock until we are resumed, as the controller
634 * will never reach the non-busy state when in standby mode
636 mutex_lock(&(par->io_lock));
639 dev_warn(dev, "already in standby, runtime-pm pairing mismatch\n");
640 mutex_unlock(&(par->io_lock));
644 /* according to runtime_pm.txt runtime_suspend only means, that the
645 * device will not process data and will not communicate with the CPU
646 * As we hold the lock, this stays true even without standby
648 if (board->quirks & AUOK190X_QUIRK_STANDBYBROKEN) {
649 dev_dbg(dev, "runtime suspend without standby\n");
651 } else if (board->quirks & AUOK190X_QUIRK_STANDBYPARAM) {
652 /* for some TCON versions STANDBY expects a parameter (0) but
653 * it seems the real tcon version has to be determined yet.
655 dev_dbg(dev, "runtime suspend with additional empty param\n");
657 auok190x_send_cmdargs(par, AUOK190X_CMD_STANDBY, 1,
660 dev_dbg(dev, "runtime suspend without param\n");
661 auok190x_send_command(par, AUOK190X_CMD_STANDBY);
672 static int auok190x_runtime_resume(struct device *dev)
674 struct platform_device *pdev = to_platform_device(dev);
675 struct fb_info *info = platform_get_drvdata(pdev);
676 struct auok190xfb_par *par = info->par;
677 struct auok190x_board *board = par->board;
680 dev_warn(dev, "not in standby, runtime-pm pairing mismatch\n");
684 if (board->quirks & AUOK190X_QUIRK_STANDBYBROKEN) {
685 dev_dbg(dev, "runtime resume without standby\n");
687 /* when in standby, controller is always busy
688 * and only accepts the wakeup command
690 dev_dbg(dev, "runtime resume from standby\n");
691 auok190x_send_command_nowait(par, AUOK190X_CMD_WAKEUP);
695 /* wait for the controller to be ready and release the lock */
696 board->wait_for_rdy(par);
701 mutex_unlock(&(par->io_lock));
706 static int auok190x_suspend(struct device *dev)
708 struct platform_device *pdev = to_platform_device(dev);
709 struct fb_info *info = platform_get_drvdata(pdev);
710 struct auok190xfb_par *par = info->par;
711 struct auok190x_board *board = par->board;
714 dev_dbg(dev, "suspend\n");
715 if (board->quirks & AUOK190X_QUIRK_STANDBYBROKEN) {
716 /* suspend via powering off the ic */
717 dev_dbg(dev, "suspend with broken standby\n");
719 auok190x_power(par, 0);
721 dev_dbg(dev, "suspend using sleep\n");
723 /* the sleep state can only be entered from the standby state.
724 * pm_runtime_get_noresume gets called before the suspend call.
725 * So the devices usage count is >0 but it is not necessarily
728 if (!pm_runtime_status_suspended(dev)) {
729 ret = auok190x_runtime_suspend(dev);
731 dev_err(dev, "auok190x_runtime_suspend failed with %d\n",
735 par->manual_standby = 1;
738 gpio_direction_output(board->gpio_nsleep, 0);
746 static int auok190x_resume(struct device *dev)
748 struct platform_device *pdev = to_platform_device(dev);
749 struct fb_info *info = platform_get_drvdata(pdev);
750 struct auok190xfb_par *par = info->par;
751 struct auok190x_board *board = par->board;
753 dev_dbg(dev, "resume\n");
754 if (board->quirks & AUOK190X_QUIRK_STANDBYBROKEN) {
755 dev_dbg(dev, "resume with broken standby\n");
757 auok190x_power(par, 1);
761 dev_dbg(dev, "resume from sleep\n");
763 /* device should be in runtime suspend when we were suspended
764 * and pm_runtime_put_sync gets called after this function.
765 * So there is no need to touch the standby mode here at all.
767 gpio_direction_output(board->gpio_nsleep, 1);
770 /* an additional init call seems to be necessary after sleep */
771 auok190x_runtime_resume(dev);
774 /* if we were runtime-suspended before, suspend again*/
775 if (!par->manual_standby)
776 auok190x_runtime_suspend(dev);
778 par->manual_standby = 0;
785 const struct dev_pm_ops auok190x_pm = {
786 SET_RUNTIME_PM_OPS(auok190x_runtime_suspend, auok190x_runtime_resume,
788 SET_SYSTEM_SLEEP_PM_OPS(auok190x_suspend, auok190x_resume)
790 EXPORT_SYMBOL_GPL(auok190x_pm);
793 * Common probe and remove code
796 int auok190x_common_probe(struct platform_device *pdev,
797 struct auok190x_init_data *init)
799 struct auok190x_board *board = init->board;
800 struct auok190xfb_par *par;
801 struct fb_info *info;
802 struct panel_info *panel;
803 int videomemorysize, ret;
804 unsigned char *videomemory;
806 /* check board contents */
807 if (!board->init || !board->cleanup || !board->wait_for_rdy
808 || !board->set_ctl || !board->set_hdb || !board->get_hdb
809 || !board->setup_irq)
812 info = framebuffer_alloc(sizeof(struct auok190xfb_par), &pdev->dev);
819 par->recover = auok190x_recover;
820 par->update_partial = init->update_partial;
821 par->update_all = init->update_all;
822 par->need_refresh = init->need_refresh;
823 par->init = init->init;
825 /* init update modes */
827 par->update_mode = -1;
831 par->regulator = regulator_get(info->device, "vdd");
832 if (IS_ERR(par->regulator)) {
833 ret = PTR_ERR(par->regulator);
834 dev_err(info->device, "Failed to get regulator: %d\n", ret);
838 ret = board->init(par);
840 dev_err(info->device, "board init failed, %d\n", ret);
844 ret = gpio_request(board->gpio_nsleep, "AUOK190x sleep");
846 dev_err(info->device, "could not request sleep gpio, %d\n",
851 ret = gpio_direction_output(board->gpio_nsleep, 0);
853 dev_err(info->device, "could not set sleep gpio, %d\n", ret);
857 ret = gpio_request(board->gpio_nrst, "AUOK190x reset");
859 dev_err(info->device, "could not request reset gpio, %d\n",
864 ret = gpio_direction_output(board->gpio_nrst, 0);
866 dev_err(info->device, "could not set reset gpio, %d\n", ret);
870 ret = auok190x_power(par, 1);
872 dev_err(info->device, "could not power on the device, %d\n",
877 mutex_init(&par->io_lock);
879 init_waitqueue_head(&par->waitq);
881 ret = par->board->setup_irq(par->info);
883 dev_err(info->device, "could not setup ready-irq, %d\n", ret);
887 /* wait for init to complete */
888 par->board->wait_for_rdy(par);
891 * From here on the controller can talk to us
894 /* initialise fix, var, resolution and rotation */
896 strlcpy(info->fix.id, init->id, 16);
897 info->fix.type = FB_TYPE_PACKED_PIXELS;
898 info->fix.visual = FB_VISUAL_STATIC_PSEUDOCOLOR;
899 info->fix.xpanstep = 0;
900 info->fix.ypanstep = 0;
901 info->fix.ywrapstep = 0;
902 info->fix.accel = FB_ACCEL_NONE;
904 info->var.bits_per_pixel = 8;
905 info->var.grayscale = 1;
906 info->var.red.length = 8;
907 info->var.green.length = 8;
908 info->var.blue.length = 8;
910 panel = &panel_table[board->resolution];
912 par->resolution = board->resolution;
913 par->rotation = board->rotation;
915 /* videomemory handling */
917 videomemorysize = roundup((panel->w * panel->h) *
918 info->var.bits_per_pixel / 8, PAGE_SIZE);
919 videomemory = vmalloc(videomemorysize);
925 memset(videomemory, 0, videomemorysize);
926 info->screen_base = (char *)videomemory;
927 info->fix.smem_len = videomemorysize;
929 info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
930 info->fbops = &auok190xfb_ops;
932 ret = auok190xfb_check_var(&info->var, info);
936 info->fix.line_length = info->var.xres_virtual *
937 info->var.bits_per_pixel / 8;
939 /* deferred io init */
941 info->fbdefio = devm_kzalloc(info->device,
942 sizeof(struct fb_deferred_io),
944 if (!info->fbdefio) {
945 dev_err(info->device, "Failed to allocate memory\n");
950 dev_dbg(info->device, "targetting %d frames per second\n", board->fps);
951 info->fbdefio->delay = HZ / board->fps;
952 info->fbdefio->first_io = auok190xfb_dpy_first_io,
953 info->fbdefio->deferred_io = auok190xfb_dpy_deferred_io,
954 fb_deferred_io_init(info);
958 ret = fb_alloc_cmap(&info->cmap, 256, 0);
960 dev_err(info->device, "Failed to allocate colormap\n");
964 /* controller init */
966 par->consecutive_threshold = 100;
968 auok190x_identify(par);
970 platform_set_drvdata(pdev, info);
972 ret = register_framebuffer(info);
976 ret = sysfs_create_group(&info->device->kobj, &auok190x_attr_group);
980 dev_info(info->device, "fb%d: %dx%d using %dK of video memory\n",
981 info->node, info->var.xres, info->var.yres,
982 videomemorysize >> 10);
984 /* increase autosuspend_delay when we use alternative methods
987 par->autosuspend_delay = (board->quirks & AUOK190X_QUIRK_STANDBYBROKEN)
990 pm_runtime_set_active(info->device);
991 pm_runtime_enable(info->device);
992 pm_runtime_set_autosuspend_delay(info->device, par->autosuspend_delay);
993 pm_runtime_use_autosuspend(info->device);
998 unregister_framebuffer(info);
1000 fb_dealloc_cmap(&info->cmap);
1002 fb_deferred_io_cleanup(info);
1004 vfree((void *)info->screen_base);
1006 auok190x_power(par, 0);
1008 gpio_free(board->gpio_nrst);
1010 gpio_free(board->gpio_nsleep);
1012 board->cleanup(par);
1014 regulator_put(par->regulator);
1016 framebuffer_release(info);
1020 EXPORT_SYMBOL_GPL(auok190x_common_probe);
1022 int auok190x_common_remove(struct platform_device *pdev)
1024 struct fb_info *info = platform_get_drvdata(pdev);
1025 struct auok190xfb_par *par = info->par;
1026 struct auok190x_board *board = par->board;
1028 pm_runtime_disable(info->device);
1030 sysfs_remove_group(&info->device->kobj, &auok190x_attr_group);
1032 unregister_framebuffer(info);
1034 fb_dealloc_cmap(&info->cmap);
1036 fb_deferred_io_cleanup(info);
1038 vfree((void *)info->screen_base);
1040 auok190x_power(par, 0);
1042 gpio_free(board->gpio_nrst);
1043 gpio_free(board->gpio_nsleep);
1045 board->cleanup(par);
1047 regulator_put(par->regulator);
1049 framebuffer_release(info);
1053 EXPORT_SYMBOL_GPL(auok190x_common_remove);
1055 MODULE_DESCRIPTION("Common code for AUO-K190X controllers");
1056 MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
1057 MODULE_LICENSE("GPL");