diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-11-23 03:29:57 +0300 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-11-23 03:29:57 +0300 |
commit | 2fb7eb3d7e8c5c0375c726c7d5c443e6f7e53741 (patch) | |
tree | d6cf7e7bf329e8758ef9ede1a37dad55763a21d9 /drivers/video | |
parent | 93251bdf7a771c4eeb0f95fa38ded92e95154ef7 (diff) | |
parent | 3adec6f907b698b32ab62f70da31b41abed00c59 (diff) | |
download | linux-2fb7eb3d7e8c5c0375c726c7d5c443e6f7e53741.tar.xz |
Merge tag 'backlight-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
- Improve handling of LCD power states and interactions with the fbdev
subsystem
- Introduce new LCD_POWER_ constants to decouple the LCD subsystem from
fbdev
- Update several drivers to use the new LCD_POWER_ constants
- Clarify the semantics of the lcd_ops.controls_device callback
- Remove unnecessary includes and dependencies
- Remove unused notifier functionality
- Simplify code with scoped for-each loops
- Fix module autoloading for the ktz8866 driver
- Update device tree bindings to yaml format
- Minor cleanups and improvements in various drivers
* tag 'backlight-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: (33 commits)
MAINTAINERS: Use Daniel Thompson's korg address for Backlight work
dt-bindings: backlight: Convert zii,rave-sp-backlight.txt to yaml
backlight: Remove notifier
backlight: ktz8866: Fix module autoloading
backlight: 88pm860x_bl: Simplify with scoped for each OF child loop
backlight: lcd: Do not include <linux/fb.h> in lcd header
backlight: lcd: Remove struct fb_videomode from set_mode callback
backlight: lcd: Replace check_fb with controls_device
HID: picoLCD: Replace check_fb in favor of struct fb_info.lcd_dev
fbdev: omap: Use lcd power constants
fbdev: imxfb: Use lcd power constants
fbdev: imxfb: Replace check_fb in favor of struct fb_info.lcd_dev
fbdev: clps711x-fb: Use lcd power constants
fbdev: clps711x-fb: Replace check_fb in favor of struct fb_info.lcd_dev
backlight: tdo24m: Use lcd power constants
backlight: platform_lcd: Use lcd power constants
backlight: platform_lcd: Remove match_fb from struct plat_lcd_data
backlight: platform_lcd: Remove include statement for <linux/backlight.h>
backlight: otm3225a: Use lcd power constants
backlight: ltv350qv: Use lcd power constants
...
Diffstat (limited to 'drivers/video')
-rw-r--r-- | drivers/video/backlight/88pm860x_bl.c | 5 | ||||
-rw-r--r-- | drivers/video/backlight/backlight.c | 42 | ||||
-rw-r--r-- | drivers/video/backlight/corgi_lcd.c | 17 | ||||
-rw-r--r-- | drivers/video/backlight/hx8357.c | 2 | ||||
-rw-r--r-- | drivers/video/backlight/ili922x.c | 7 | ||||
-rw-r--r-- | drivers/video/backlight/ili9320.c | 15 | ||||
-rw-r--r-- | drivers/video/backlight/jornada720_lcd.c | 10 | ||||
-rw-r--r-- | drivers/video/backlight/ktz8866.c | 1 | ||||
-rw-r--r-- | drivers/video/backlight/l4f00242t03.c | 32 | ||||
-rw-r--r-- | drivers/video/backlight/lcd.c | 50 | ||||
-rw-r--r-- | drivers/video/backlight/lms283gf05.c | 2 | ||||
-rw-r--r-- | drivers/video/backlight/lms501kf03.c | 24 | ||||
-rw-r--r-- | drivers/video/backlight/ltv350qv.c | 15 | ||||
-rw-r--r-- | drivers/video/backlight/otm3225a.c | 2 | ||||
-rw-r--r-- | drivers/video/backlight/platform_lcd.c | 20 | ||||
-rw-r--r-- | drivers/video/backlight/tdo24m.c | 19 | ||||
-rw-r--r-- | drivers/video/fbdev/clps711x-fb.c | 29 | ||||
-rw-r--r-- | drivers/video/fbdev/imxfb.c | 32 | ||||
-rw-r--r-- | drivers/video/fbdev/omap/lcd_ams_delta.c | 8 |
19 files changed, 145 insertions, 187 deletions
diff --git a/drivers/video/backlight/88pm860x_bl.c b/drivers/video/backlight/88pm860x_bl.c index 25e409bbb1a2..720b5ada7fe8 100644 --- a/drivers/video/backlight/88pm860x_bl.c +++ b/drivers/video/backlight/88pm860x_bl.c @@ -151,7 +151,7 @@ static int pm860x_backlight_dt_init(struct platform_device *pdev, struct pm860x_backlight_data *data, char *name) { - struct device_node *nproot, *np; + struct device_node *nproot; int iset = 0; nproot = of_get_child_by_name(pdev->dev.parent->of_node, "backlights"); @@ -159,14 +159,13 @@ static int pm860x_backlight_dt_init(struct platform_device *pdev, dev_err(&pdev->dev, "failed to find backlights node\n"); return -ENODEV; } - for_each_child_of_node(nproot, np) { + for_each_child_of_node_scoped(nproot, np) { if (of_node_name_eq(np, name)) { of_property_read_u32(np, "marvell,88pm860x-iset", &iset); data->iset = PM8606_WLED_CURRENT(iset); of_property_read_u32(np, "marvell,88pm860x-pwm", &data->pwm); - of_node_put(np); break; } } diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index a82934694d05..f699e5827ccb 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -65,7 +65,6 @@ static struct list_head backlight_dev_list; static struct mutex backlight_dev_list_mutex; -static struct blocking_notifier_head backlight_notifier; static const char *const backlight_types[] = { [BACKLIGHT_RAW] = "raw", @@ -467,9 +466,6 @@ struct backlight_device *backlight_device_register(const char *name, list_add(&new_bd->entry, &backlight_dev_list); mutex_unlock(&backlight_dev_list_mutex); - blocking_notifier_call_chain(&backlight_notifier, - BACKLIGHT_REGISTERED, new_bd); - return new_bd; } EXPORT_SYMBOL(backlight_device_register); @@ -539,9 +535,6 @@ void backlight_device_unregister(struct backlight_device *bd) mutex_unlock(&pmac_backlight_mutex); #endif - blocking_notifier_call_chain(&backlight_notifier, - BACKLIGHT_UNREGISTERED, bd); - mutex_lock(&bd->ops_lock); bd->ops = NULL; mutex_unlock(&bd->ops_lock); @@ -567,40 +560,6 @@ static int devm_backlight_device_match(struct device *dev, void *res, } /** - * backlight_register_notifier - get notified of backlight (un)registration - * @nb: notifier block with the notifier to call on backlight (un)registration - * - * Register a notifier to get notified when backlight devices get registered - * or unregistered. - * - * RETURNS: - * - * 0 on success, otherwise a negative error code - */ -int backlight_register_notifier(struct notifier_block *nb) -{ - return blocking_notifier_chain_register(&backlight_notifier, nb); -} -EXPORT_SYMBOL(backlight_register_notifier); - -/** - * backlight_unregister_notifier - unregister a backlight notifier - * @nb: notifier block to unregister - * - * Register a notifier to get notified when backlight devices get registered - * or unregistered. - * - * RETURNS: - * - * 0 on success, otherwise a negative error code - */ -int backlight_unregister_notifier(struct notifier_block *nb) -{ - return blocking_notifier_chain_unregister(&backlight_notifier, nb); -} -EXPORT_SYMBOL(backlight_unregister_notifier); - -/** * devm_backlight_device_register - register a new backlight device * @dev: the device to register * @name: the name of the device @@ -767,7 +726,6 @@ static int __init backlight_class_init(void) INIT_LIST_HEAD(&backlight_dev_list); mutex_init(&backlight_dev_list_mutex); - BLOCKING_INIT_NOTIFIER_HEAD(&backlight_notifier); return 0; } diff --git a/drivers/video/backlight/corgi_lcd.c b/drivers/video/backlight/corgi_lcd.c index e4fcfbe38dc6..69f49371ea35 100644 --- a/drivers/video/backlight/corgi_lcd.c +++ b/drivers/video/backlight/corgi_lcd.c @@ -17,14 +17,13 @@ #include <linux/init.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> -#include <linux/fb.h> #include <linux/lcd.h> #include <linux/spi/spi.h> #include <linux/spi/corgi_lcd.h> #include <linux/slab.h> #include <asm/mach/sharpsl_param.h> -#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL) +#define POWER_IS_ON(pwr) ((pwr) <= LCD_POWER_REDUCED) /* Register Addresses */ #define RESCTL_ADRS 0x00 @@ -332,12 +331,12 @@ static void corgi_lcd_power_off(struct corgi_lcd *lcd) POWER1_VW_OFF | POWER1_GVSS_OFF | POWER1_VDD_OFF); } -static int corgi_lcd_set_mode(struct lcd_device *ld, struct fb_videomode *m) +static int corgi_lcd_set_mode(struct lcd_device *ld, u32 xres, u32 yres) { struct corgi_lcd *lcd = lcd_get_data(ld); int mode = CORGI_LCD_MODE_QVGA; - if (m->xres == 640 || m->xres == 480) + if (xres == 640 || xres == 480) mode = CORGI_LCD_MODE_VGA; if (lcd->mode == mode) @@ -455,7 +454,7 @@ static int corgi_lcd_suspend(struct device *dev) corgibl_flags |= CORGIBL_SUSPENDED; corgi_bl_set_intensity(lcd, 0); - corgi_lcd_set_power(lcd->lcd_dev, FB_BLANK_POWERDOWN); + corgi_lcd_set_power(lcd->lcd_dev, LCD_POWER_OFF); return 0; } @@ -464,7 +463,7 @@ static int corgi_lcd_resume(struct device *dev) struct corgi_lcd *lcd = dev_get_drvdata(dev); corgibl_flags &= ~CORGIBL_SUSPENDED; - corgi_lcd_set_power(lcd->lcd_dev, FB_BLANK_UNBLANK); + corgi_lcd_set_power(lcd->lcd_dev, LCD_POWER_ON); backlight_update_status(lcd->bl_dev); return 0; } @@ -513,7 +512,7 @@ static int corgi_lcd_probe(struct spi_device *spi) if (IS_ERR(lcd->lcd_dev)) return PTR_ERR(lcd->lcd_dev); - lcd->power = FB_BLANK_POWERDOWN; + lcd->power = LCD_POWER_OFF; lcd->mode = (pdata) ? pdata->init_mode : CORGI_LCD_MODE_VGA; memset(&props, 0, sizeof(struct backlight_properties)); @@ -535,7 +534,7 @@ static int corgi_lcd_probe(struct spi_device *spi) lcd->kick_battery = pdata->kick_battery; spi_set_drvdata(spi, lcd); - corgi_lcd_set_power(lcd->lcd_dev, FB_BLANK_UNBLANK); + corgi_lcd_set_power(lcd->lcd_dev, LCD_POWER_ON); backlight_update_status(lcd->bl_dev); lcd->limit_mask = pdata->limit_mask; @@ -550,7 +549,7 @@ static void corgi_lcd_remove(struct spi_device *spi) lcd->bl_dev->props.power = BACKLIGHT_POWER_ON; lcd->bl_dev->props.brightness = 0; backlight_update_status(lcd->bl_dev); - corgi_lcd_set_power(lcd->lcd_dev, FB_BLANK_POWERDOWN); + corgi_lcd_set_power(lcd->lcd_dev, LCD_POWER_OFF); } static struct spi_driver corgi_lcd_driver = { diff --git a/drivers/video/backlight/hx8357.c b/drivers/video/backlight/hx8357.c index cdd7b7686723..61a57d38700f 100644 --- a/drivers/video/backlight/hx8357.c +++ b/drivers/video/backlight/hx8357.c @@ -532,7 +532,7 @@ static int hx8369_lcd_init(struct lcd_device *lcdev) return 0; } -#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL) +#define POWER_IS_ON(pwr) ((pwr) <= LCD_POWER_REDUCED) static int hx8357_set_power(struct lcd_device *lcdev, int power) { diff --git a/drivers/video/backlight/ili922x.c b/drivers/video/backlight/ili922x.c index 7683e209ad6b..5e1bf0c5831f 100644 --- a/drivers/video/backlight/ili922x.c +++ b/drivers/video/backlight/ili922x.c @@ -8,7 +8,6 @@ * memory is cyclically updated over the RGB interface. */ -#include <linux/fb.h> #include <linux/delay.h> #include <linux/errno.h> #include <linux/init.h> @@ -119,7 +118,7 @@ #define CMD_BUFSIZE 16 -#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL) +#define POWER_IS_ON(pwr) ((pwr) <= LCD_POWER_REDUCED) #define set_tx_byte(b) (tx_invert ? ~(b) : b) @@ -513,7 +512,7 @@ static int ili922x_probe(struct spi_device *spi) ili922x_display_init(spi); - ili->power = FB_BLANK_POWERDOWN; + ili->power = LCD_POWER_OFF; lcd = devm_lcd_device_register(&spi->dev, "ili922xlcd", &spi->dev, ili, &ili922x_ops); @@ -525,7 +524,7 @@ static int ili922x_probe(struct spi_device *spi) ili->ld = lcd; spi_set_drvdata(spi, ili); - ili922x_lcd_power(ili, FB_BLANK_UNBLANK); + ili922x_lcd_power(ili, LCD_POWER_ON); return 0; } diff --git a/drivers/video/backlight/ili9320.c b/drivers/video/backlight/ili9320.c index 3e318d1891b6..2df96a882119 100644 --- a/drivers/video/backlight/ili9320.c +++ b/drivers/video/backlight/ili9320.c @@ -10,7 +10,6 @@ #include <linux/delay.h> #include <linux/err.h> -#include <linux/fb.h> #include <linux/init.h> #include <linux/lcd.h> #include <linux/module.h> @@ -121,7 +120,7 @@ static inline int ili9320_power_off(struct ili9320 *lcd) return 0; } -#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL) +#define POWER_IS_ON(pwr) ((pwr) <= LCD_POWER_REDUCED) static int ili9320_power(struct ili9320 *lcd, int power) { @@ -223,7 +222,7 @@ int ili9320_probe_spi(struct spi_device *spi, ili->dev = dev; ili->client = client; - ili->power = FB_BLANK_POWERDOWN; + ili->power = LCD_POWER_OFF; ili->platdata = cfg; spi_set_drvdata(spi, ili); @@ -241,7 +240,7 @@ int ili9320_probe_spi(struct spi_device *spi, dev_info(dev, "initialising %s\n", client->name); - ret = ili9320_power(ili, FB_BLANK_UNBLANK); + ret = ili9320_power(ili, LCD_POWER_ON); if (ret != 0) { dev_err(dev, "failed to set lcd power state\n"); return ret; @@ -253,7 +252,7 @@ EXPORT_SYMBOL_GPL(ili9320_probe_spi); void ili9320_remove(struct ili9320 *ili) { - ili9320_power(ili, FB_BLANK_POWERDOWN); + ili9320_power(ili, LCD_POWER_OFF); } EXPORT_SYMBOL_GPL(ili9320_remove); @@ -262,7 +261,7 @@ int ili9320_suspend(struct ili9320 *lcd) { int ret; - ret = ili9320_power(lcd, FB_BLANK_POWERDOWN); + ret = ili9320_power(lcd, LCD_POWER_OFF); if (lcd->platdata->suspend == ILI9320_SUSPEND_DEEP) { ili9320_write(lcd, ILI9320_POWER1, lcd->power1 | @@ -282,7 +281,7 @@ int ili9320_resume(struct ili9320 *lcd) if (lcd->platdata->suspend == ILI9320_SUSPEND_DEEP) ili9320_write(lcd, ILI9320_POWER1, 0x00); - return ili9320_power(lcd, FB_BLANK_UNBLANK); + return ili9320_power(lcd, LCD_POWER_ON); } EXPORT_SYMBOL_GPL(ili9320_resume); #endif @@ -290,7 +289,7 @@ EXPORT_SYMBOL_GPL(ili9320_resume); /* Power down all displays on reboot, poweroff or halt */ void ili9320_shutdown(struct ili9320 *lcd) { - ili9320_power(lcd, FB_BLANK_POWERDOWN); + ili9320_power(lcd, LCD_POWER_OFF); } EXPORT_SYMBOL_GPL(ili9320_shutdown); diff --git a/drivers/video/backlight/jornada720_lcd.c b/drivers/video/backlight/jornada720_lcd.c index 5c64fa61e810..31a52dee9060 100644 --- a/drivers/video/backlight/jornada720_lcd.c +++ b/drivers/video/backlight/jornada720_lcd.c @@ -6,7 +6,7 @@ */ #include <linux/device.h> -#include <linux/fb.h> +#include <linux/io.h> #include <linux/kernel.h> #include <linux/lcd.h> #include <linux/module.h> @@ -23,14 +23,14 @@ static int jornada_lcd_get_power(struct lcd_device *ld) { - return PPSR & PPC_LDD2 ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; + return PPSR & PPC_LDD2 ? LCD_POWER_ON : LCD_POWER_OFF; } static int jornada_lcd_get_contrast(struct lcd_device *ld) { int ret; - if (jornada_lcd_get_power(ld) != FB_BLANK_UNBLANK) + if (jornada_lcd_get_power(ld) != LCD_POWER_ON) return 0; jornada_ssp_start(); @@ -71,7 +71,7 @@ success: static int jornada_lcd_set_power(struct lcd_device *ld, int power) { - if (power != FB_BLANK_UNBLANK) { + if (power != LCD_POWER_ON) { PPSR &= ~PPC_LDD2; PPDR |= PPC_LDD2; } else { @@ -106,7 +106,7 @@ static int jornada_lcd_probe(struct platform_device *pdev) /* lets set our default values */ jornada_lcd_set_contrast(lcd_device, LCD_DEF_CONTRAST); - jornada_lcd_set_power(lcd_device, FB_BLANK_UNBLANK); + jornada_lcd_set_power(lcd_device, LCD_POWER_ON); /* give it some time to startup */ msleep(100); diff --git a/drivers/video/backlight/ktz8866.c b/drivers/video/backlight/ktz8866.c index 2e508741c0af..351c2b4d63ed 100644 --- a/drivers/video/backlight/ktz8866.c +++ b/drivers/video/backlight/ktz8866.c @@ -190,6 +190,7 @@ static const struct of_device_id ktz8866_match_table[] = { }, {}, }; +MODULE_DEVICE_TABLE(of, ktz8866_match_table); static struct i2c_driver ktz8866_driver = { .driver = { diff --git a/drivers/video/backlight/l4f00242t03.c b/drivers/video/backlight/l4f00242t03.c index 4175a4603071..d04d2256306e 100644 --- a/drivers/video/backlight/l4f00242t03.c +++ b/drivers/video/backlight/l4f00242t03.c @@ -112,40 +112,40 @@ static int l4f00242t03_lcd_power_set(struct lcd_device *ld, int power) const u16 slpin = 0x10; const u16 disoff = 0x28; - if (power <= FB_BLANK_NORMAL) { - if (priv->lcd_state <= FB_BLANK_NORMAL) { + if (power <= LCD_POWER_REDUCED) { + if (priv->lcd_state <= LCD_POWER_REDUCED) { /* Do nothing, the LCD is running */ - } else if (priv->lcd_state < FB_BLANK_POWERDOWN) { + } else if (priv->lcd_state < LCD_POWER_OFF) { dev_dbg(&spi->dev, "Resuming LCD\n"); spi_write(spi, (const u8 *)&slpout, sizeof(u16)); msleep(60); spi_write(spi, (const u8 *)&dison, sizeof(u16)); } else { - /* priv->lcd_state == FB_BLANK_POWERDOWN */ + /* priv->lcd_state == LCD_POWER_OFF */ l4f00242t03_lcd_init(spi); - priv->lcd_state = FB_BLANK_VSYNC_SUSPEND; + priv->lcd_state = LCD_POWER_REDUCED_VSYNC_SUSPEND; l4f00242t03_lcd_power_set(priv->ld, power); } - } else if (power < FB_BLANK_POWERDOWN) { - if (priv->lcd_state <= FB_BLANK_NORMAL) { + } else if (power < LCD_POWER_OFF) { + if (priv->lcd_state <= LCD_POWER_REDUCED) { /* Send the display in standby */ dev_dbg(&spi->dev, "Standby the LCD\n"); spi_write(spi, (const u8 *)&disoff, sizeof(u16)); msleep(60); spi_write(spi, (const u8 *)&slpin, sizeof(u16)); - } else if (priv->lcd_state < FB_BLANK_POWERDOWN) { + } else if (priv->lcd_state < LCD_POWER_OFF) { /* Do nothing, the LCD is already in standby */ } else { - /* priv->lcd_state == FB_BLANK_POWERDOWN */ + /* priv->lcd_state == LCD_POWER_OFF */ l4f00242t03_lcd_init(spi); - priv->lcd_state = FB_BLANK_UNBLANK; + priv->lcd_state = LCD_POWER_ON; l4f00242t03_lcd_power_set(ld, power); } } else { - /* power == FB_BLANK_POWERDOWN */ - if (priv->lcd_state != FB_BLANK_POWERDOWN) { + /* power == LCD_POWER_OFF */ + if (priv->lcd_state != LCD_POWER_OFF) { /* Clear the screen before shutting down */ spi_write(spi, (const u8 *)&disoff, sizeof(u16)); msleep(60); @@ -212,8 +212,8 @@ static int l4f00242t03_probe(struct spi_device *spi) /* Init the LCD */ l4f00242t03_lcd_init(spi); - priv->lcd_state = FB_BLANK_VSYNC_SUSPEND; - l4f00242t03_lcd_power_set(priv->ld, FB_BLANK_UNBLANK); + priv->lcd_state = LCD_POWER_REDUCED_VSYNC_SUSPEND; + l4f00242t03_lcd_power_set(priv->ld, LCD_POWER_ON); dev_info(&spi->dev, "Epson l4f00242t03 lcd probed.\n"); @@ -224,7 +224,7 @@ static void l4f00242t03_remove(struct spi_device *spi) { struct l4f00242t03_priv *priv = spi_get_drvdata(spi); - l4f00242t03_lcd_power_set(priv->ld, FB_BLANK_POWERDOWN); + l4f00242t03_lcd_power_set(priv->ld, LCD_POWER_OFF); } static void l4f00242t03_shutdown(struct spi_device *spi) @@ -232,7 +232,7 @@ static void l4f00242t03_shutdown(struct spi_device *spi) struct l4f00242t03_priv *priv = spi_get_drvdata(spi); if (priv) - l4f00242t03_lcd_power_set(priv->ld, FB_BLANK_POWERDOWN); + l4f00242t03_lcd_power_set(priv->ld, LCD_POWER_OFF); } diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c index ceec90ca758b..3267acf8dc5b 100644 --- a/drivers/video/backlight/lcd.c +++ b/drivers/video/backlight/lcd.c @@ -20,6 +20,24 @@ #if defined(CONFIG_FB) || (defined(CONFIG_FB_MODULE) && \ defined(CONFIG_LCD_CLASS_DEVICE_MODULE)) +static int to_lcd_power(int fb_blank) +{ + switch (fb_blank) { + case FB_BLANK_UNBLANK: + return LCD_POWER_ON; + /* deprecated; TODO: should become 'off' */ + case FB_BLANK_NORMAL: + return LCD_POWER_REDUCED; + case FB_BLANK_VSYNC_SUSPEND: + return LCD_POWER_REDUCED_VSYNC_SUSPEND; + /* 'off' */ + case FB_BLANK_HSYNC_SUSPEND: + case FB_BLANK_POWERDOWN: + default: + return LCD_POWER_OFF; + } +} + /* This callback gets called when something important happens inside a * framebuffer driver. We're looking if that important event is blanking, * and if it is, we're switching lcd power as well ... @@ -27,24 +45,32 @@ static int fb_notifier_callback(struct notifier_block *self, unsigned long event, void *data) { - struct lcd_device *ld; + struct lcd_device *ld = container_of(self, struct lcd_device, fb_notif); struct fb_event *evdata = data; + struct fb_info *info = evdata->info; + struct lcd_device *fb_lcd = fb_lcd_device(info); + + guard(mutex)(&ld->ops_lock); - ld = container_of(self, struct lcd_device, fb_notif); if (!ld->ops) return 0; + if (ld->ops->controls_device && !ld->ops->controls_device(ld, info->device)) + return 0; + if (fb_lcd && fb_lcd != ld) + return 0; - mutex_lock(&ld->ops_lock); - if (!ld->ops->check_fb || ld->ops->check_fb(ld, evdata->info)) { - if (event == FB_EVENT_BLANK) { - if (ld->ops->set_power) - ld->ops->set_power(ld, *(int *)evdata->data); - } else { - if (ld->ops->set_mode) - ld->ops->set_mode(ld, evdata->data); - } + if (event == FB_EVENT_BLANK) { + int power = to_lcd_power(*(int *)evdata->data); + + if (ld->ops->set_power) + ld->ops->set_power(ld, power); + } else { + const struct fb_videomode *videomode = evdata->data; + + if (ld->ops->set_mode) + ld->ops->set_mode(ld, videomode->xres, videomode->yres); } - mutex_unlock(&ld->ops_lock); + return 0; } diff --git a/drivers/video/backlight/lms283gf05.c b/drivers/video/backlight/lms283gf05.c index a65490e83d3d..c8b7eeeb333e 100644 --- a/drivers/video/backlight/lms283gf05.c +++ b/drivers/video/backlight/lms283gf05.c @@ -126,7 +126,7 @@ static int lms283gf05_power_set(struct lcd_device *ld, int power) struct lms283gf05_state *st = lcd_get_data(ld); struct spi_device *spi = st->spi; - if (power <= FB_BLANK_NORMAL) { + if (power <= LCD_POWER_REDUCED) { if (st->reset) lms283gf05_reset(st->reset); lms283gf05_toggle(spi, disp_initseq, ARRAY_SIZE(disp_initseq)); diff --git a/drivers/video/backlight/lms501kf03.c b/drivers/video/backlight/lms501kf03.c index 8aebe0af3391..28721b48b4c7 100644 --- a/drivers/video/backlight/lms501kf03.c +++ b/drivers/video/backlight/lms501kf03.c @@ -6,9 +6,7 @@ * Author: Jingoo Han <jg1.han@samsung.com> */ -#include <linux/backlight.h> #include <linux/delay.h> -#include <linux/fb.h> #include <linux/lcd.h> #include <linux/module.h> #include <linux/spi/spi.h> @@ -206,7 +204,7 @@ static int lms501kf03_ldi_disable(struct lms501kf03 *lcd) static int lms501kf03_power_is_on(int power) { - return (power) <= FB_BLANK_NORMAL; + return (power) <= LCD_POWER_REDUCED; } static int lms501kf03_power_on(struct lms501kf03 *lcd) @@ -295,8 +293,8 @@ static int lms501kf03_set_power(struct lcd_device *ld, int power) { struct lms501kf03 *lcd = lcd_get_data(ld); - if (power != FB_BLANK_UNBLANK && power != FB_BLANK_POWERDOWN && - power != FB_BLANK_NORMAL) { + if (power != LCD_POWER_ON && power != LCD_POWER_OFF && + power != LCD_POWER_REDUCED) { dev_err(lcd->dev, "power value should be 0, 1 or 4.\n"); return -EINVAL; } @@ -350,11 +348,11 @@ static int lms501kf03_probe(struct spi_device *spi) * current lcd status is powerdown and then * it enables lcd panel. */ - lcd->power = FB_BLANK_POWERDOWN; + lcd->power = LCD_POWER_OFF; - lms501kf03_power(lcd, FB_BLANK_UNBLANK); + lms501kf03_power(lcd, LCD_POWER_ON); } else { - lcd->power = FB_BLANK_UNBLANK; + lcd->power = LCD_POWER_ON; } spi_set_drvdata(spi, lcd); @@ -368,7 +366,7 @@ static void lms501kf03_remove(struct spi_device *spi) { struct lms501kf03 *lcd = spi_get_drvdata(spi); - lms501kf03_power(lcd, FB_BLANK_POWERDOWN); + lms501kf03_power(lcd, LCD_POWER_OFF); } #ifdef CONFIG_PM_SLEEP @@ -382,16 +380,16 @@ static int lms501kf03_suspend(struct device *dev) * when lcd panel is suspend, lcd panel becomes off * regardless of status. */ - return lms501kf03_power(lcd, FB_BLANK_POWERDOWN); + return lms501kf03_power(lcd, LCD_POWER_OFF); } static int lms501kf03_resume(struct device *dev) { struct lms501kf03 *lcd = dev_get_drvdata(dev); - lcd->power = FB_BLANK_POWERDOWN; + lcd->power = LCD_POWER_OFF; - return lms501kf03_power(lcd, FB_BLANK_UNBLANK); + return lms501kf03_power(lcd, LCD_POWER_ON); } #endif @@ -402,7 +400,7 @@ static void lms501kf03_shutdown(struct spi_device *spi) { struct lms501kf03 *lcd = spi_get_drvdata(spi); - lms501kf03_power(lcd, FB_BLANK_POWERDOWN); + lms501kf03_power(lcd, LCD_POWER_OFF); } static struct spi_driver lms501kf03_driver = { diff --git a/drivers/video/backlight/ltv350qv.c b/drivers/video/backlight/ltv350qv.c index cdc4c087f230..c919b0fe4cd9 100644 --- a/drivers/video/backlight/ltv350qv.c +++ b/drivers/video/backlight/ltv350qv.c @@ -6,7 +6,6 @@ */ #include <linux/delay.h> #include <linux/err.h> -#include <linux/fb.h> #include <linux/init.h> #include <linux/lcd.h> #include <linux/module.h> @@ -15,7 +14,7 @@ #include "ltv350qv.h" -#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL) +#define POWER_IS_ON(pwr) ((pwr) <= LCD_POWER_REDUCED) struct ltv350qv { struct spi_device *spi; @@ -233,7 +232,7 @@ static int ltv350qv_probe(struct spi_device *spi) return -ENOMEM; lcd->spi = spi; - lcd->power = FB_BLANK_POWERDOWN; + lcd->power = LCD_POWER_OFF; lcd->buffer = devm_kzalloc(&spi->dev, 8, GFP_KERNEL); if (!lcd->buffer) return -ENOMEM; @@ -245,7 +244,7 @@ static int ltv350qv_probe(struct spi_device *spi) lcd->ld = ld; - ret = ltv350qv_power(lcd, FB_BLANK_UNBLANK); + ret = ltv350qv_power(lcd, LCD_POWER_ON); if (ret) return ret; @@ -258,7 +257,7 @@ static void ltv350qv_remove(struct spi_device *spi) { struct ltv350qv *lcd = spi_get_drvdata(spi); - ltv350qv_power(lcd, FB_BLANK_POWERDOWN); + ltv350qv_power(lcd, LCD_POWER_OFF); } #ifdef CONFIG_PM_SLEEP @@ -266,14 +265,14 @@ static int ltv350qv_suspend(struct device *dev) { struct ltv350qv *lcd = dev_get_drvdata(dev); - return ltv350qv_power(lcd, FB_BLANK_POWERDOWN); + return ltv350qv_power(lcd, LCD_POWER_OFF); } static int ltv350qv_resume(struct device *dev) { struct ltv350qv *lcd = dev_get_drvdata(dev); - return ltv350qv_power(lcd, FB_BLANK_UNBLANK); + return ltv350qv_power(lcd, LCD_POWER_ON); } #endif @@ -284,7 +283,7 @@ static void ltv350qv_shutdown(struct spi_device *spi) { struct ltv350qv *lcd = spi_get_drvdata(spi); - ltv350qv_power(lcd, FB_BLANK_POWERDOWN); + ltv350qv_power(lcd, LCD_POWER_OFF); } static struct spi_driver ltv350qv_driver = { diff --git a/drivers/video/backlight/otm3225a.c b/drivers/video/backlight/otm3225a.c index efe52fa08b07..5c6575f23ea8 100644 --- a/drivers/video/backlight/otm3225a.c +++ b/drivers/video/backlight/otm3225a.c @@ -189,7 +189,7 @@ static int otm3225a_set_power(struct lcd_device *ld, int power) if (power == dd->power) return 0; - if (power > FB_BLANK_UNBLANK) + if (power > LCD_POWER_ON) otm3225a_write(dd->spi, display_off, ARRAY_SIZE(display_off)); else otm3225a_write(dd->spi, display_on, ARRAY_SIZE(display_on)); diff --git a/drivers/video/backlight/platform_lcd.c b/drivers/video/backlight/platform_lcd.c index b0af612834a7..c9fe50f4d8ed 100644 --- a/drivers/video/backlight/platform_lcd.c +++ b/drivers/video/backlight/platform_lcd.c @@ -9,8 +9,6 @@ #include <linux/module.h> #include <linux/platform_device.h> -#include <linux/fb.h> -#include <linux/backlight.h> #include <linux/lcd.h> #include <linux/slab.h> @@ -42,7 +40,7 @@ static int platform_lcd_set_power(struct lcd_device *lcd, int power) struct platform_lcd *plcd = to_our_lcd(lcd); int lcd_power = 1; - if (power == FB_BLANK_POWERDOWN || plcd->suspended) + if (power == LCD_POWER_OFF || plcd->suspended) lcd_power = 0; plcd->pdata->set_power(plcd->pdata, lcd_power); @@ -51,21 +49,17 @@ static int platform_lcd_set_power(struct lcd_device *lcd, int power) return 0; } -static int platform_lcd_match(struct lcd_device *lcd, struct fb_info *info) +static bool platform_lcd_controls_device(struct lcd_device *lcd, struct device *display_device) { struct platform_lcd *plcd = to_our_lcd(lcd); - struct plat_lcd_data *pdata = plcd->pdata; - if (pdata->match_fb) - return pdata->match_fb(pdata, info); - - return plcd->us->parent == info->device; + return plcd->us->parent == display_device; } static const struct lcd_ops platform_lcd_ops = { - .get_power = platform_lcd_get_power, - .set_power = platform_lcd_set_power, - .check_fb = platform_lcd_match, + .get_power = platform_lcd_get_power, + .set_power = platform_lcd_set_power, + .controls_device = platform_lcd_controls_device, }; static int platform_lcd_probe(struct platform_device *pdev) @@ -102,7 +96,7 @@ static int platform_lcd_probe(struct platform_device *pdev) } platform_set_drvdata(pdev, plcd); - platform_lcd_set_power(plcd->lcd, FB_BLANK_NORMAL); + platform_lcd_set_power(plcd->lcd, LCD_POWER_REDUCED); return 0; } diff --git a/drivers/video/backlight/tdo24m.c b/drivers/video/backlight/tdo24m.c index c413b3c68e95..c04ee3d04d87 100644 --- a/drivers/video/backlight/tdo24m.c +++ b/drivers/video/backlight/tdo24m.c @@ -12,11 +12,10 @@ #include <linux/device.h> #include <linux/spi/spi.h> #include <linux/spi/tdo24m.h> -#include <linux/fb.h> #include <linux/lcd.h> #include <linux/slab.h> -#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL) +#define POWER_IS_ON(pwr) ((pwr) <= LCD_POWER_REDUCED) #define TDO24M_SPI_BUFF_SIZE (4) #define MODE_QVGA 0 @@ -308,12 +307,12 @@ static int tdo24m_get_power(struct lcd_device *ld) return lcd->power; } -static int tdo24m_set_mode(struct lcd_device *ld, struct fb_videomode *m) +static int tdo24m_set_mode(struct lcd_device *ld, u32 xres, u32 yres) { struct tdo24m *lcd = lcd_get_data(ld); int mode = MODE_QVGA; - if (m->xres == 640 || m->xres == 480) + if (xres == 640 || xres == 480) mode = MODE_VGA; if (lcd->mode == mode) @@ -354,7 +353,7 @@ static int tdo24m_probe(struct spi_device *spi) return -ENOMEM; lcd->spi_dev = spi; - lcd->power = FB_BLANK_POWERDOWN; + lcd->power = LCD_POWER_OFF; lcd->mode = MODE_VGA; /* default to VGA */ lcd->buf = devm_kzalloc(&spi->dev, TDO24M_SPI_BUFF_SIZE, GFP_KERNEL); @@ -390,7 +389,7 @@ static int tdo24m_probe(struct spi_device *spi) return PTR_ERR(lcd->lcd_dev); spi_set_drvdata(spi, lcd); - err = tdo24m_power(lcd, FB_BLANK_UNBLANK); + err = tdo24m_power(lcd, LCD_POWER_ON); if (err) return err; @@ -401,7 +400,7 @@ static void tdo24m_remove(struct spi_device *spi) { struct tdo24m *lcd = spi_get_drvdata(spi); - tdo24m_power(lcd, FB_BLANK_POWERDOWN); + tdo24m_power(lcd, LCD_POWER_OFF); } #ifdef CONFIG_PM_SLEEP @@ -409,14 +408,14 @@ static int tdo24m_suspend(struct device *dev) { struct tdo24m *lcd = dev_get_drvdata(dev); - return tdo24m_power(lcd, FB_BLANK_POWERDOWN); + return tdo24m_power(lcd, LCD_POWER_OFF); } static int tdo24m_resume(struct device *dev) { struct tdo24m *lcd = dev_get_drvdata(dev); - return tdo24m_power(lcd, FB_BLANK_UNBLANK); + return tdo24m_power(lcd, LCD_POWER_ON); } #endif @@ -427,7 +426,7 @@ static void tdo24m_shutdown(struct spi_device *spi) { struct tdo24m *lcd = spi_get_drvdata(spi); - tdo24m_power(lcd, FB_BLANK_POWERDOWN); + tdo24m_power(lcd, LCD_POWER_OFF); } static struct spi_driver tdo24m_driver = { diff --git a/drivers/video/fbdev/clps711x-fb.c b/drivers/video/fbdev/clps711x-fb.c index 0d0ba617b4aa..5e61a349a4ab 100644 --- a/drivers/video/fbdev/clps711x-fb.c +++ b/drivers/video/fbdev/clps711x-fb.c @@ -162,22 +162,15 @@ static const struct fb_ops clps711x_fb_ops = { .fb_blank = clps711x_fb_blank, }; -static int clps711x_lcd_check_fb(struct lcd_device *lcddev, struct fb_info *fi) -{ - struct clps711x_fb_info *cfb = dev_get_drvdata(&lcddev->dev); - - return (!fi || fi->par == cfb) ? 1 : 0; -} - static int clps711x_lcd_get_power(struct lcd_device *lcddev) { struct clps711x_fb_info *cfb = dev_get_drvdata(&lcddev->dev); if (!IS_ERR_OR_NULL(cfb->lcd_pwr)) if (!regulator_is_enabled(cfb->lcd_pwr)) - return FB_BLANK_NORMAL; + return LCD_POWER_REDUCED; - return FB_BLANK_UNBLANK; + return LCD_POWER_ON; } static int clps711x_lcd_set_power(struct lcd_device *lcddev, int blank) @@ -185,7 +178,7 @@ static int clps711x_lcd_set_power(struct lcd_device *lcddev, int blank) struct clps711x_fb_info *cfb = dev_get_drvdata(&lcddev->dev); if (!IS_ERR_OR_NULL(cfb->lcd_pwr)) { - if (blank == FB_BLANK_UNBLANK) { + if (blank == LCD_POWER_ON) { if (!regulator_is_enabled(cfb->lcd_pwr)) return regulator_enable(cfb->lcd_pwr); } else { @@ -198,7 +191,6 @@ static int clps711x_lcd_set_power(struct lcd_device *lcddev, int blank) } static const struct lcd_ops clps711x_lcd_ops = { - .check_fb = clps711x_lcd_check_fb, .get_power = clps711x_lcd_get_power, .set_power = clps711x_lcd_set_power, }; @@ -325,16 +317,21 @@ static int clps711x_fb_probe(struct platform_device *pdev) if (ret) goto out_fb_dealloc_cmap; + lcd = devm_lcd_device_register(dev, "clps711x-lcd", dev, cfb, + &clps711x_lcd_ops); + if (IS_ERR(lcd)) { + ret = PTR_ERR(lcd); + goto out_fb_dealloc_cmap; + } + + info->lcd_dev = lcd; + ret = register_framebuffer(info); if (ret) goto out_fb_dealloc_cmap; - lcd = devm_lcd_device_register(dev, "clps711x-lcd", dev, cfb, - &clps711x_lcd_ops); - if (!IS_ERR(lcd)) - return 0; + return 0; - ret = PTR_ERR(lcd); unregister_framebuffer(info); out_fb_dealloc_cmap: diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c index ff343e4ed35b..f30da32cdaed 100644 --- a/drivers/video/fbdev/imxfb.c +++ b/drivers/video/fbdev/imxfb.c @@ -782,16 +782,6 @@ static int imxfb_of_read_mode(struct device *dev, struct device_node *np, return 0; } -static int imxfb_lcd_check_fb(struct lcd_device *lcddev, struct fb_info *fi) -{ - struct imxfb_info *fbi = dev_get_drvdata(&lcddev->dev); - - if (!fi || fi->par == fbi) - return 1; - - return 0; -} - static int imxfb_lcd_get_contrast(struct lcd_device *lcddev) { struct imxfb_info *fbi = dev_get_drvdata(&lcddev->dev); @@ -824,9 +814,9 @@ static int imxfb_lcd_get_power(struct lcd_device *lcddev) if (!IS_ERR(fbi->lcd_pwr) && !regulator_is_enabled(fbi->lcd_pwr)) - return FB_BLANK_POWERDOWN; + return LCD_POWER_OFF; - return FB_BLANK_UNBLANK; + return LCD_POWER_ON; } static int imxfb_regulator_set(struct imxfb_info *fbi, int enable) @@ -852,13 +842,12 @@ static int imxfb_lcd_set_power(struct lcd_device *lcddev, int power) struct imxfb_info *fbi = dev_get_drvdata(&lcddev->dev); if (!IS_ERR(fbi->lcd_pwr)) - return imxfb_regulator_set(fbi, power == FB_BLANK_UNBLANK); + return imxfb_regulator_set(fbi, power == LCD_POWER_ON); return 0; } static const struct lcd_ops imxfb_lcd_ops = { - .check_fb = imxfb_lcd_check_fb, .get_contrast = imxfb_lcd_get_contrast, .set_contrast = imxfb_lcd_set_contrast, .get_power = imxfb_lcd_get_power, @@ -1025,11 +1014,6 @@ static int imxfb_probe(struct platform_device *pdev) goto failed_cmap; imxfb_set_par(info); - ret = register_framebuffer(info); - if (ret < 0) { - dev_err(&pdev->dev, "failed to register framebuffer\n"); - goto failed_register; - } fbi->lcd_pwr = devm_regulator_get(&pdev->dev, "lcd"); if (PTR_ERR(fbi->lcd_pwr) == -EPROBE_DEFER) { @@ -1046,13 +1030,19 @@ static int imxfb_probe(struct platform_device *pdev) lcd->props.max_contrast = 0xff; + info->lcd_dev = lcd; + + ret = register_framebuffer(info); + if (ret < 0) { + dev_err(&pdev->dev, "failed to register framebuffer\n"); + goto failed_lcd; + } + imxfb_enable_controller(fbi); return 0; failed_lcd: - unregister_framebuffer(info); -failed_register: fb_dealloc_cmap(&info->cmap); failed_cmap: dma_free_wc(&pdev->dev, fbi->map_size, info->screen_buffer, diff --git a/drivers/video/fbdev/omap/lcd_ams_delta.c b/drivers/video/fbdev/omap/lcd_ams_delta.c index 97e2b71b64d7..456e6e9e11a9 100644 --- a/drivers/video/fbdev/omap/lcd_ams_delta.c +++ b/drivers/video/fbdev/omap/lcd_ams_delta.c @@ -32,7 +32,7 @@ static struct gpio_desc *gpiod_ndisp; static int ams_delta_lcd_set_power(struct lcd_device *dev, int power) { - if (power == FB_BLANK_UNBLANK) { + if (power == LCD_POWER_ON) { if (!(ams_delta_lcd & AMS_DELTA_LCD_POWER)) { omap_writeb(ams_delta_lcd & AMS_DELTA_MAX_CONTRAST, OMAP_PWL_ENABLE); @@ -63,9 +63,9 @@ static int ams_delta_lcd_set_contrast(struct lcd_device *dev, int value) static int ams_delta_lcd_get_power(struct lcd_device *dev) { if (ams_delta_lcd & AMS_DELTA_LCD_POWER) - return FB_BLANK_UNBLANK; + return LCD_POWER_ON; else - return FB_BLANK_POWERDOWN; + return LCD_POWER_OFF; } static int ams_delta_lcd_get_contrast(struct lcd_device *dev) @@ -155,7 +155,7 @@ static int ams_delta_panel_probe(struct platform_device *pdev) #endif ams_delta_lcd_set_contrast(lcd_device, AMS_DELTA_DEFAULT_CONTRAST); - ams_delta_lcd_set_power(lcd_device, FB_BLANK_UNBLANK); + ams_delta_lcd_set_power(lcd_device, LCD_POWER_ON); omapfb_register_panel(&ams_delta_panel); return 0; |