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drm/i915: Introduce intel_plane_state_reset()

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For the sake of symmetry with the crtc stuff let's add
a helper to reset the plane state to sane default values.
For the moment this only gets caller from the plane init.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107142417.11107-5-ville.syrjala@linux.intel.com
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
This commit is contained in:
Ville Syrjälä 2019-11-07 16:24:17 +02:00
parent 979e94c1d6
commit 74cb2751d4
1 changed files with 13 additions and 2 deletions
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15
drivers/gpu/drm/i915/display/intel_atomic_plane.c
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@ -41,6 +41,16 @@
#include "intel_pm.h"
#include "intel_sprite.h"
static void intel_plane_state_reset(struct intel_plane_state *plane_state,
struct intel_plane *plane)
{
memset(plane_state, 0, sizeof(*plane_state));
__drm_atomic_helper_plane_state_reset(&plane_state->uapi, &plane->base);
plane_state->scaler_id = -1;
}
struct intel_plane *intel_plane_alloc(void)
{
struct intel_plane_state *plane_state;
@ -56,8 +66,9 @@ struct intel_plane *intel_plane_alloc(void)
return ERR_PTR(-ENOMEM);
}
__drm_atomic_helper_plane_reset(&plane->base, &plane_state->uapi);
plane_state->scaler_id = -1;
intel_plane_state_reset(plane_state, plane);
plane->base.state = &plane_state->uapi;
return plane;
}