[PATCH v4 2/2] drm/vkms: move wb's atomic_check from encoder to connector

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As the renamed drm_atomic_helper_check_wb_connector_state() now accepts
drm_writeback_connector as the first argument (instead of drm_encoder),
move the VKMS writeback atomic_check from drm_encoder_helper_funcs to
drm_connector_helper_funcs. Also drop the vkms_wb_encoder_helper_funcs,
which have become empty now.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
 drivers/gpu/drm/vkms/vkms_writeback.c | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/vkms/vkms_writeback.c b/drivers/gpu/drm/vkms/vkms_writeback.c
index fef7f3daf2c9..bc724cbd5e3a 100644
--- a/drivers/gpu/drm/vkms/vkms_writeback.c
+++ b/drivers/gpu/drm/vkms/vkms_writeback.c
@@ -30,18 +30,25 @@ static const struct drm_connector_funcs vkms_wb_connector_funcs = {
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
 
-static int vkms_wb_encoder_atomic_check(struct drm_encoder *encoder,
-					struct drm_crtc_state *crtc_state,
-					struct drm_connector_state *conn_state)
+static int vkms_wb_atomic_check(struct drm_connector *connector,
+				struct drm_atomic_state *state)
 {
-	struct drm_connector *connector = conn_state->connector;
+	struct drm_connector_state *conn_state =
+		drm_atomic_get_new_connector_state(state, connector);
+	struct drm_crtc_state *crtc_state;
 	struct drm_framebuffer *fb;
-	const struct drm_display_mode *mode = &crtc_state->mode;
+	const struct drm_display_mode *mode;
 	int ret;
 
 	if (!conn_state->writeback_job || !conn_state->writeback_job->fb)
 		return 0;
 
+	if (!conn_state->crtc)
+		return 0;
+
+	crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
+	mode = &crtc_state->mode;
+
 	fb = conn_state->writeback_job->fb;
 	if (fb->width != mode->hdisplay || fb->height != mode->vdisplay) {
 		DRM_DEBUG_KMS("Invalid framebuffer size %ux%u\n",
@@ -49,17 +56,13 @@ static int vkms_wb_encoder_atomic_check(struct drm_encoder *encoder,
 		return -EINVAL;
 	}
 
-	ret = drm_atomic_helper_check_wb_connector_state(connector, conn_state->state);
+	ret = drm_atomic_helper_check_wb_connector_state(connector, state);
 	if (ret < 0)
 		return ret;
 
 	return 0;
 }
 
-static const struct drm_encoder_helper_funcs vkms_wb_encoder_helper_funcs = {
-	.atomic_check = vkms_wb_encoder_atomic_check,
-};
-
 static int vkms_wb_connector_get_modes(struct drm_connector *connector)
 {
 	struct drm_device *dev = connector->dev;
@@ -162,6 +165,7 @@ static const struct drm_connector_helper_funcs vkms_wb_conn_helper_funcs = {
 	.prepare_writeback_job = vkms_wb_prepare_job,
 	.cleanup_writeback_job = vkms_wb_cleanup_job,
 	.atomic_commit = vkms_wb_atomic_commit,
+	.atomic_check = vkms_wb_atomic_check,
 };
 
 int vkms_enable_writeback_connector(struct vkms_device *vkmsdev)
@@ -172,7 +176,7 @@ int vkms_enable_writeback_connector(struct vkms_device *vkmsdev)
 
 	return drm_writeback_connector_init(&vkmsdev->drm, wb,
 					    &vkms_wb_connector_funcs,
-					    &vkms_wb_encoder_helper_funcs,
+					    NULL,
 					    vkms_wb_formats,
 					    ARRAY_SIZE(vkms_wb_formats),
 					    1);
-- 
2.39.2




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