From: Stephan Gerhold stephan@gerhold.net

[ Upstream commit 5c320b6ce7510653bce68cecf80cf5b2d67e907f ]

At the moment, only DRM_MODE_ROTATE_180 is allowed when we try to apply the rotation from the video mode parameters. It is also useful to allow DRM_MODE_ROTATE_0 in case there is only a reflect option in the video mode parameter (e.g. video=540x960,reflect_x).

DRM_MODE_ROTATE_0 means "no rotation" and should therefore not require any special handling, so we can just add it to the if condition.

Signed-off-by: Stephan Gerhold stephan@gerhold.net Signed-off-by: Maxime Ripard maxime@cerno.tech Link: https://patchwork.freedesktop.org/patch/msgid/20200117153429.54700-3-stephan... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/drm_client_modeset.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c index 6d4a29e99ae26..3035584f6dc72 100644 --- a/drivers/gpu/drm/drm_client_modeset.c +++ b/drivers/gpu/drm/drm_client_modeset.c @@ -951,7 +951,8 @@ bool drm_client_rotation(struct drm_mode_set *modeset, unsigned int *rotation) * depending on the hardware this may require the framebuffer * to be in a specific tiling format. */ - if ((*rotation & DRM_MODE_ROTATE_MASK) != DRM_MODE_ROTATE_180 || + if (((*rotation & DRM_MODE_ROTATE_MASK) != DRM_MODE_ROTATE_0 && + (*rotation & DRM_MODE_ROTATE_MASK) != DRM_MODE_ROTATE_180) || !plane->rotation_property) return false;