The patch titled
Subject: fbdev: add events for early fb event support
has been added to the -mm tree. Its filename is
fb-add-events-for-early-fb-event-support.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Inki Dae <inki.dae@xxxxxxxxxxx>
Subject: fbdev: add events for early fb event support
Add FB_EARLY_EVENT_BLANK and FB_R_EARLY_EVENT_BLANK event mode supports.
first, fb_notifier_call_chain() is called with FB_EARLY_EVENT_BLANK and
fb_blank() of specific fb driver is called and then
fb_notifier_call_chain() is called with FB_EVENT_BLANK again at
fb_blank(). and if fb_blank() was failed then fb_nitifier_call_chain()
would be called with FB_R_EARLY_EVENT_BLANK to revert the previous
effects.
Signed-off-by: Inki Dae <inki.dae@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Cc: Lars-Peter Clausen <lars@xxxxxxxxxx>
Cc: Florian Tobias Schandinat <FlorianSchandinat@xxxxxx>
Cc: Richard Purdie <rpurdie@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/fbmem.c | 21 +++++++++++++++------
include/linux/fb.h | 4 ++++
2 files changed, 19 insertions(+), 6 deletions(-)
diff -puN drivers/video/fbmem.c~fb-add-events-for-early-fb-event-support drivers/video/fbmem.c
--- a/drivers/video/fbmem.c~fb-add-events-for-early-fb-event-support
+++ a/drivers/video/fbmem.c
@@ -1046,20 +1046,29 @@ fb_set_var(struct fb_info *info, struct
int
fb_blank(struct fb_info *info, int blank)
{
- int ret = -EINVAL;
+ struct fb_event event;
+ int ret = -EINVAL, early_ret;
if (blank > FB_BLANK_POWERDOWN)
blank = FB_BLANK_POWERDOWN;
+ 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) {
- struct fb_event event;
-
- event.info = info;
- event.data = ␣
+ 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 -puN include/linux/fb.h~fb-add-events-for-early-fb-event-support include/linux/fb.h
--- a/include/linux/fb.h~fb-add-events-for-early-fb-event-support
+++ a/include/linux/fb.h
@@ -554,6 +554,10 @@ struct fb_cursor_user {
#define FB_EVENT_FB_UNBIND 0x0E
/* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga switcheroo */
#define FB_EVENT_REMAP_ALL_CONSOLE 0x0F
+/* A hardware display blank early change occured */
+#define FB_EARLY_EVENT_BLANK 0x10
+/* A hardware display blank revert early change occured */
+#define FB_R_EARLY_EVENT_BLANK 0x11
struct fb_event {
struct fb_info *info;
_
Subject: Subject: fbdev: add events for early fb event support
Patches currently in -mm which might be from inki.dae@xxxxxxxxxxx are
lcd-add-callbacks-for-early-fb-event-blank-support.patch
fb-add-events-for-early-fb-event-support.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
