Hi Alexandru,
Thank you for the patch.
On Thursday, 26 July 2018 19:17:47 EEST Alexandru Gheorghe wrote:
There are a lot of drivers that subclass drm_plane_state, all of them duplicate the code that links toghether the plane with plane_state.
s/toghether/together/
On top of that, drivers that enable core properties also have to duplicate the code for initializing the properties to their default values, which in all cases are the same as the defaults from core.
Change since v1:
- Make it consistent with the other helpers and require that both plane and state not be NULL, suggested by Boris Brezillon and Philipp Zabel.
Signed-off-by: Alexandru Gheorghe alexandru-cosmin.gheorghe@arm.com
drivers/gpu/drm/drm_atomic_helper.c | 31 ++++++++++++++++++++--------- include/drm/drm_atomic_helper.h | 2 ++ 2 files changed, 24 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 866a2cc72ef6..7f5aafc5b1a0 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -3552,6 +3552,26 @@ void drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc, } EXPORT_SYMBOL(drm_atomic_helper_crtc_destroy_state);
+/**
- __drm_atomic_helper_plane_reset - resets planes state to default values
- @plane: plane object, must not be NULL
- @state: atomic plane state, must not be NULL
- Initializes plane state to default. This is useful for drivers that
subclass
- the plane state.
- */
+void __drm_atomic_helper_plane_reset(struct drm_plane *plane,
struct drm_plane_state *state)+{
- state->plane = plane;
- state->rotation = DRM_MODE_ROTATE_0;
Nitpicking, I'd keep the blank line here to make the code a bit easier to read
- /* Reset the alpha value to fully opaque if it matters */
- if (plane->alpha_property)
state->alpha = plane->alpha_property->values[1];
And here too.
Apart from that,
Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com
- plane->state = state;
+} +EXPORT_SYMBOL(__drm_atomic_helper_plane_reset);
/**
- drm_atomic_helper_plane_reset - default &drm_plane_funcs.reset hook for
planes * @plane: drm plane @@ -3566,15 +3586,8 @@ void drm_atomic_helper_plane_reset(struct drm_plane *plane)
kfree(plane->state); plane->state = kzalloc(sizeof(*plane->state), GFP_KERNEL);
- if (plane->state) {
plane->state->plane = plane;plane->state->rotation = DRM_MODE_ROTATE_0;/* Reset the alpha value to fully opaque if it matters */if (plane->alpha_property)plane->state->alpha = plane->alpha_property->values[1];- }
- if (plane->state)
__drm_atomic_helper_plane_reset(plane, plane->state);} EXPORT_SYMBOL(drm_atomic_helper_plane_reset);
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h index 99e2a5297c69..f4c7ed876c97 100644 --- a/include/drm/drm_atomic_helper.h +++ b/include/drm/drm_atomic_helper.h @@ -156,6 +156,8 @@ void __drm_atomic_helper_crtc_destroy_state(struct drm_crtc_state *state); void drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *state);
+void __drm_atomic_helper_plane_reset(struct drm_plane *plane,
struct drm_plane_state *state);void drm_atomic_helper_plane_reset(struct drm_plane *plane); void __drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane, struct drm_plane_state *state);