diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0340-drm-vc4-Fix-drm_vblank_put-get-imbalance-in-page-fli.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0340-drm-vc4-Fix-drm_vblank_put-get-imbalance-in-page-fli.patch | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0340-drm-vc4-Fix-drm_vblank_put-get-imbalance-in-page-fli.patch b/target/linux/brcm2708/patches-4.4/0340-drm-vc4-Fix-drm_vblank_put-get-imbalance-in-page-fli.patch deleted file mode 100644 index eddcdfc2bc..0000000000 --- a/target/linux/brcm2708/patches-4.4/0340-drm-vc4-Fix-drm_vblank_put-get-imbalance-in-page-fli.patch +++ /dev/null @@ -1,47 +0,0 @@ -From fcb31481cff293291c6d3e7891da4be4a302cfd1 Mon Sep 17 00:00:00 2001 -From: Mario Kleiner <mario.kleiner.de@gmail.com> -Date: Fri, 6 May 2016 19:26:06 +0200 -Subject: [PATCH] drm/vc4: Fix drm_vblank_put/get imbalance in page flip path. - -The async page flip path was missing drm_crtc_vblank_get/put -completely. The sync flip path was missing a vblank put, so async -flips only reported proper pageflip completion events by chance, -and vblank irq's never turned off after a first vsync'ed page flip -until system reboot. - -Tested against Raspian kernel 4.4.8 tree on RPi 2B. - -Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> -Cc: Eric Anholt <eric@anholt.net> -Signed-off-by: Eric Anholt <eric@anholt.net> ---- - drivers/gpu/drm/vc4/vc4_crtc.c | 4 ++++ - 1 file changed, 4 insertions(+) - ---- a/drivers/gpu/drm/vc4/vc4_crtc.c -+++ b/drivers/gpu/drm/vc4/vc4_crtc.c -@@ -506,6 +506,7 @@ static void vc4_crtc_handle_page_flip(st - if (vc4_crtc->event) { - drm_crtc_send_vblank_event(crtc, vc4_crtc->event); - vc4_crtc->event = NULL; -+ drm_crtc_vblank_put(crtc); - } - spin_unlock_irqrestore(&dev->event_lock, flags); - } -@@ -556,6 +557,7 @@ vc4_async_page_flip_complete(struct vc4_ - spin_unlock_irqrestore(&dev->event_lock, flags); - } - -+ drm_crtc_vblank_put(crtc); - drm_framebuffer_unreference(flip_state->fb); - kfree(flip_state); - -@@ -598,6 +600,8 @@ static int vc4_async_page_flip(struct dr - return ret; - } - -+ WARN_ON(drm_crtc_vblank_get(crtc) != 0); -+ - /* Immediately update the plane's legacy fb pointer, so that later - * modeset prep sees the state that will be present when the semaphore - * is released. |