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drm/sun4i: backend: Set a default zpos in our reset hook

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The plane state zpos value will be set only if there's an existing state
attached to the plane when creating the property.

However, this is not the case during the probe, and we therefore need to
put our default value in our reset hook.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b6a183234f0ad5a9a58c780c9cabbe29cbf40888.1516617243.git-series.maxime.ripard@free-electrons.com
This commit is contained in:
Maxime Ripard 2017-12-17 17:32:21 +01:00
parent 098b338afe
commit 2bebcc4564
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1 changed files with 2 additions and 0 deletions
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drivers/gpu/drm/sun4i/sun4i_layer.c
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@ -28,6 +28,7 @@ struct sun4i_plane_desc {
static void sun4i_backend_layer_reset(struct drm_plane *plane)
{
struct sun4i_layer *layer = plane_to_sun4i_layer(plane);
struct sun4i_layer_state *state;
if (plane->state) {
@ -43,6 +44,7 @@ static void sun4i_backend_layer_reset(struct drm_plane *plane)
if (state) {
plane->state = &state->state;
plane->state->plane = plane;
plane->state->zpos = layer->id;
}
}