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drm/vkms: Add atomic_helper_check_plane_state 

Call atomic_helper_check_plane_state to clip plane coordinates.

Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/b8c1bfed8b5720cc4794ace41cf49af66c99a48c.1532446182.git.hamohammed.sa@gmail.com
This commit is contained in:
Haneen Mohammed 2018-07-24 19:30:22 +03:00 committed by Sean Paul
parent 8ce1bb0b53
commit d7734b7409
1 changed files with 29 additions and 0 deletions
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29
drivers/gpu/drm/vkms/vkms_plane.c
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@ -8,6 +8,7 @@
#include "vkms_drv.h"
#include <drm/drm_plane_helper.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
@ -25,6 +26,33 @@ static void vkms_primary_plane_update(struct drm_plane *plane,
{
}
static int vkms_plane_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
struct drm_crtc_state *crtc_state;
int ret;
if (!state->fb | !state->crtc)
return 0;
crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
if (IS_ERR(crtc_state))
return PTR_ERR(crtc_state);
ret = drm_atomic_helper_check_plane_state(state, crtc_state,
DRM_PLANE_HELPER_NO_SCALING,
DRM_PLANE_HELPER_NO_SCALING,
false, true);
if (ret != 0)
return ret;
/* for now primary plane must be visible and full screen */
if (!state->visible)
return -EINVAL;
return 0;
}
static int vkms_prepare_fb(struct drm_plane *plane,
struct drm_plane_state *state)
{
@ -58,6 +86,7 @@ static void vkms_cleanup_fb(struct drm_plane *plane,
static const struct drm_plane_helper_funcs vkms_primary_helper_funcs = {
.atomic_update = vkms_primary_plane_update,
.atomic_check = vkms_plane_atomic_check,
.prepare_fb = vkms_prepare_fb,
.cleanup_fb = vkms_cleanup_fb,
};