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 <s...@ravnborg.org>
Cc: Lee Jones <lee.jo...@linaro.org>
Cc: Daniel Thompson <daniel.thomp...@linaro.org>
Cc: Jingoo Han <jingooh...@gmail.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnier...@samsung.com>
Cc: Daniel Vetter <daniel.vet...@ffwll.ch>
Cc: Sam Ravnborg <s...@ravnborg.org>
Cc: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
Cc: "Michał Mirosław" <mirq-li...@rere.qmqm.pl>
Cc: Peter Rosin <p...@axentia.se>
Cc: Gerd Hoffmann <kra...@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-fb...@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
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