drm/meson: Use crtc_state for hdisplay and fix atomic flush/enable sync for vsync commit

Clean the crtc_enable by using the proper crtc_state instead of the state
of the primary plane state data.

Also fix the dependency to commit the plane changes even if enable is called
after the flush.
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>

drivers/gpu/drm/meson/meson_crtc.c

@@ -82,11 +82,18 @@ static const struct drm_crtc_funcs meson_crtc_funcs = {
 static void meson_crtc_enable(struct drm_crtc *crtc)
 {
 	struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
-	struct drm_plane *plane = meson_crtc->priv->primary_plane;
+	struct drm_crtc_state *crtc_state = crtc->state;
 	struct meson_drm *priv = meson_crtc->priv;
 
+	DRM_DEBUG_DRIVER("\n");
+
+	if (!crtc_state) {
+		DRM_ERROR("Invalid crtc_state\n");
+		return;
+	}
+
 	/* Enable VPP Postblend */
-	writel(plane->state->crtc_w,
+	writel(crtc_state->mode.hdisplay,
 	       priv->io_base + _REG(VPP_POSTBLEND_H_SIZE));
 
 	writel_bits_relaxed(VPP_POSTBLEND_ENABLE, VPP_POSTBLEND_ENABLE,
@@ -101,6 +108,7 @@ static void meson_crtc_disable(struct drm_crtc *crtc)
 	struct meson_drm *priv = meson_crtc->priv;
 
 	priv->viu.osd1_enabled = false;
+	priv->viu.osd1_commit = false;
 
 	/* Disable VPP Postblend */
 	writel_bits_relaxed(VPP_POSTBLEND_ENABLE, 0,
@@ -137,8 +145,7 @@ static void meson_crtc_atomic_flush(struct drm_crtc *crtc,
 	struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
 	struct meson_drm *priv = meson_crtc->priv;
 
-	if (priv->viu.osd1_enabled)
-		priv->viu.osd1_commit = true;
+	priv->viu.osd1_commit = true;
 }
 
 static const struct drm_crtc_helper_funcs meson_crtc_helper_funcs = {