[PATCH v1 1/1] backlight: drop EARLY_EVENT_BLANK support
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STALE2621d
From: Sam Ravnborg <hidden>
Date: 2019-07-25 14:32:28
Also in:
dri-devel
Subsystem:
backlight class/subsystem, framebuffer core, framebuffer layer, the rest · Maintainers:
Lee Jones, Daniel Thompson, Jingoo Han, Simona Vetter, Helge Deller, Linus Torvalds
There was no users left - so drop the code to support EARLY_FB_BLANK.
This patch removes the support in backlight,
and drop the notifier in fbmem.
That EARLY_FB_BLANK is not used can be verified that no driver set any of:
lcd_ops.early_set_power()
lcd_ops.r_early_set_power()
Noticed while browsing backlight code for other reasons.
Signed-off-by: Sam Ravnborg <redacted>
Cc: Lee Jones <redacted>
Cc: Daniel Thompson <redacted>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Bartlomiej Zolnierkiewicz <redacted>
Cc: Daniel Vetter <redacted>
Cc: Sam Ravnborg <redacted>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Cc: Peter Rosin <redacted>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-fbdev@vger.kernel.org
---
Build tested with various architectures, configs.
Lee, Daniel - OK to commit to drm-misc-next where fbdev stuff is
maintained today?
Patch needs ack from Bartlomiej first of course.
Sam
drivers/video/backlight/lcd.c | 8 --------
drivers/video/fbdev/core/fbmem.c | 12 +-----------
include/linux/fb.h | 4 ----
include/linux/lcd.h | 10 ----------
4 files changed, 1 insertion(+), 33 deletions(-)
diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
index d6b653aa4ee9..78b033358625 100644
--- a/drivers/video/backlight/lcd.c
+++ b/drivers/video/backlight/lcd.c@@ -39,14 +39,6 @@ static int fb_notifier_callback(struct notifier_block *self, if (event = FB_EVENT_BLANK) { if (ld->ops->set_power) ld->ops->set_power(ld, *(int *)evdata->data); - } else if (event = FB_EARLY_EVENT_BLANK) { - if (ld->ops->early_set_power) - ld->ops->early_set_power(ld, - *(int *)evdata->data); - } else if (event = FB_R_EARLY_EVENT_BLANK) { - if (ld->ops->r_early_set_power) - ld->ops->r_early_set_power(ld, - *(int *)evdata->data); } else { if (ld->ops->set_mode) ld->ops->set_mode(ld, evdata->data);
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 00fe0efeaee9..e6a1c805064f 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c@@ -1058,7 +1058,7 @@ int fb_blank(struct fb_info *info, int blank) { struct fb_event event; - int ret = -EINVAL, early_ret; + int ret = -EINVAL; if (blank > FB_BLANK_POWERDOWN) blank = FB_BLANK_POWERDOWN;
@@ -1066,21 +1066,11 @@ fb_blank(struct fb_info *info, int blank) event.info = info; event.data = ␣ - early_ret = fb_notifier_call_chain(FB_EARLY_EVENT_BLANK, &event); - if (info->fbops->fb_blank) ret = info->fbops->fb_blank(blank, info); if (!ret) fb_notifier_call_chain(FB_EVENT_BLANK, &event); - else { - /* - * if fb_blank is failed then revert effects of - * the early blank event. - */ - if (!early_ret) - fb_notifier_call_chain(FB_R_EARLY_EVENT_BLANK, &event); - } return ret; }
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 50948e519897..756706b666a1 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h@@ -135,10 +135,6 @@ struct fb_cursor_user { /* A display blank is requested */ #define FB_EVENT_BLANK 0x09 -/* A hardware display blank early change occurred */ -#define FB_EARLY_EVENT_BLANK 0x10 -/* A hardware display blank revert early change occurred */ -#define FB_R_EARLY_EVENT_BLANK 0x11 struct fb_event { struct fb_info *info;
diff --git a/include/linux/lcd.h b/include/linux/lcd.h
index 851eee8fff25..238fb1dfed98 100644
--- a/include/linux/lcd.h
+++ b/include/linux/lcd.h@@ -41,16 +41,6 @@ struct lcd_ops { /* Get the LCD panel power status (0: full on, 1..3: controller power on, flat panel power off, 4: full off), see FB_BLANK_XXX */ int (*get_power)(struct lcd_device *); - /* - * Enable or disable power to the LCD(0: on; 4: off, see FB_BLANK_XXX) - * and this callback would be called proir to fb driver's callback. - * - * P.S. note that if early_set_power is not NULL then early fb notifier - * would be registered. - */ - int (*early_set_power)(struct lcd_device *, int power); - /* revert the effects of the early blank event. */ - int (*r_early_set_power)(struct lcd_device *, int power); /* Enable or disable power to the LCD (0: on; 4: off, see FB_BLANK_XXX) */ int (*set_power)(struct lcd_device *, int power); /* Get the current contrast setting (0-max_contrast) */
--
2.20.1