From: Gustavo Padovan gustavo.padovan@collabora.co.uk
This issue was caused by the latest exynos_update_plane() clean up that unified plane operations. After those changes the plane failed to go the On state. This patch fix this problem by doing correct account of exynos_crtc->enabled.
Signed-off-by: Gustavo Padovan gustavo.padovan@collabora.co.uk --- drivers/gpu/drm/exynos/exynos_drm_crtc.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c index a85c451..1dbd0e3 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c @@ -119,6 +119,7 @@ static int exynos_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, struct drm_framebuffer *fb = crtc->primary->fb; unsigned int crtc_w; unsigned int crtc_h; + int ret;
/* when framebuffer changing is requested, crtc's dpms should be on */ if (exynos_crtc->dpms > DRM_MODE_DPMS_ON) { @@ -129,8 +130,15 @@ static int exynos_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, crtc_w = fb->width - x; crtc_h = fb->height - y;
- return exynos_update_plane(crtc->primary, crtc, fb, 0, 0, - crtc_w, crtc_h, x, y, crtc_w, crtc_h); + ret = exynos_update_plane(crtc->primary, crtc, fb, 0, 0, + crtc_w, crtc_h, x, y, crtc_w, crtc_h); + if (!ret) + return ret; + + exynos_plane_dpms(crtc->primary, DRM_MODE_DPMS_ON); + + return 0; + }
static void exynos_drm_crtc_disable(struct drm_crtc *crtc)