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Commit d7734b74 authored by Haneen Mohammed's avatar Haneen Mohammed Committed by Sean Paul
Browse files

drm/vkms: Add atomic_helper_check_plane_state 



Call atomic_helper_check_plane_state to clip plane coordinates.

Signed-off-by: default avatarHaneen Mohammed <hamohammed.sa@gmail.com>
Reviewed-by: default avatarSean Paul <seanpaul@chromium.org>
Signed-off-by: default avatarSean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/b8c1bfed8b5720cc4794ace41cf49af66c99a48c.1532446182.git.hamohammed.sa@gmail.com
parent 8ce1bb0b

drivers/gpu/drm/vkms/vkms_plane.c

+29 −0
Original line number Diff line number Diff line
@@ -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,

};