From 5f4df0c769a9c3cc731464112ddeb0e61c9386d8 Mon Sep 17 00:00:00 2001 From: Liu Ying Date: Fri, 26 Aug 2016 15:30:43 +0800 Subject: [PATCH] drm/imx: Use DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET flag The IPUv3 display controller behind imx-drm needs all planes of a CRTC be disabled when the CRTC is disabled. The DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET flag reflects this hardware requirement. Let's use the flag for imx-drm. Suggested-by: Daniel Vetter Cc: Philipp Zabel Cc: David Airlie Cc: Russell King Cc: Peter Senna Tschudin Cc: Lucas Stach Signed-off-by: Liu Ying Signed-off-by: Philipp Zabel --- drivers/gpu/drm/imx/imx-drm-core.c | 3 ++- drivers/gpu/drm/imx/ipuv3-crtc.c | 3 +++ drivers/gpu/drm/imx/ipuv3-plane.c | 8 ++++++-- 3 files changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c index 56dfc4cd50c6..99fff6c7bb4a 100644 --- a/drivers/gpu/drm/imx/imx-drm-core.c +++ b/drivers/gpu/drm/imx/imx-drm-core.c @@ -194,7 +194,8 @@ static void imx_drm_atomic_commit_tail(struct drm_atomic_state *state) drm_atomic_helper_commit_modeset_disables(dev, state); drm_atomic_helper_commit_planes(dev, state, - DRM_PLANE_COMMIT_ACTIVE_ONLY); + DRM_PLANE_COMMIT_ACTIVE_ONLY | + DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET); drm_atomic_helper_commit_modeset_enables(dev, state); diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c index 83c46bd8a47a..c3d5933cb663 100644 --- a/drivers/gpu/drm/imx/ipuv3-crtc.c +++ b/drivers/gpu/drm/imx/ipuv3-crtc.c @@ -76,6 +76,9 @@ static void ipu_crtc_atomic_disable(struct drm_crtc *crtc, crtc->state->event = NULL; } spin_unlock_irq(&crtc->dev->event_lock); + + /* always disable planes on the CRTC */ + drm_atomic_helper_disable_planes_on_crtc(old_crtc_state, true); } static void imx_drm_crtc_reset(struct drm_crtc *crtc) diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c index 4ad67d015ec7..6a481476734b 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -392,8 +392,12 @@ static void ipu_plane_atomic_update(struct drm_plane *plane, enum ipu_color_space ics; if (old_state->fb) { - ipu_plane_atomic_set_base(ipu_plane, old_state); - return; + struct drm_crtc_state *crtc_state = state->crtc->state; + + if (!drm_atomic_crtc_needs_modeset(crtc_state)) { + ipu_plane_atomic_set_base(ipu_plane, old_state); + return; + } } switch (ipu_plane->dp_flow) { -- 2.39.5