From 52c68814cd7f3592292a02b890b5b8625e9069a7 Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Fri, 16 Dec 2011 21:31:12 +0900 Subject: [PATCH] drm/exynos: extend vblank off delay time. some platform could be entering to sleep after short time once lcd panel off but before that vblank could be off by vblank off delay feature. at that time, vblank doesn't have the pair between vblank_get/put. so this path makes vblank off delay to have enough. Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_drv.c | 4 ++++ drivers/gpu/drm/exynos/exynos_drm_drv.h | 2 ++ 2 files changed, 6 insertions(+) diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index 141072089fb2..35889ca255e9 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -44,6 +44,8 @@ #define DRIVER_MAJOR 1 #define DRIVER_MINOR 0 +#define VBLANK_OFF_DELAY 50000 + static int exynos_drm_load(struct drm_device *dev, unsigned long flags) { struct exynos_drm_private *private; @@ -107,6 +109,8 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags) goto err_drm_device; } + drm_vblank_offdelay = VBLANK_OFF_DELAY; + return 0; err_drm_device: diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index 24f4ef48e474..e685e1e33055 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -41,6 +41,8 @@ struct drm_device; struct exynos_drm_overlay; struct drm_connector; +extern unsigned int drm_vblank_offdelay; + /* this enumerates display type. */ enum exynos_drm_output_type { EXYNOS_DISPLAY_TYPE_NONE,