drm: omapdrm: Move encoder setup to encoder operations

Now that the driver is fully converted to atomic operations, and that
the atomic helpers call the operations in the right order, we can move
encoder setup to where it belongs, in the encoder operations.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

drivers/gpu/drm/omapdrm/omap_crtc.c

@@ -35,7 +35,6 @@ struct omap_crtc {
 
 	const char *name;
 	enum omap_channel channel;
-	struct drm_encoder *current_encoder;
 
 	/*
 	 * Temporary: eventually this will go away, but it is needed
@@ -70,7 +69,7 @@ uint32_t pipe2vbl(struct drm_crtc *crtc)
 	return dispc_mgr_get_vsync_irq(omap_crtc->channel);
 }
 
-const struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc)
+struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc)
 {
 	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
 	return &omap_crtc->timings;
@@ -125,7 +124,7 @@ static void omap_crtc_dss_start_update(struct omap_overlay_manager *mgr)
 {
 }
 
-/* Called only from omap_crtc_encoder_setup and suspend/resume handlers. */
+/* Called only from the encoder enable/disable and suspend/resume handlers. */
 static void omap_crtc_set_enabled(struct drm_crtc *crtc, bool enable)
 {
 	struct drm_device *dev = crtc->dev;
@@ -365,37 +364,6 @@ static int omap_crtc_flush(struct drm_crtc *crtc)
 	return 0;
 }
 
-static void omap_crtc_encoder_setup(struct drm_crtc *crtc, bool enable)
-{
-	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
-	struct omap_drm_private *priv = crtc->dev->dev_private;
-	struct drm_encoder *encoder = NULL;
-	unsigned int i;
-
-	DBG("%s: enable=%d", omap_crtc->name, enable);
-
-	for (i = 0; i < priv->num_encoders; i++) {
-		if (priv->encoders[i]->crtc == crtc) {
-			encoder = priv->encoders[i];
-			break;
-		}
-	}
-
-	if (omap_crtc->current_encoder && encoder != omap_crtc->current_encoder)
-		omap_encoder_set_enabled(omap_crtc->current_encoder, false);
-
-	omap_crtc->current_encoder = encoder;
-
-	if (encoder) {
-		omap_encoder_set_enabled(encoder, false);
-		if (enable) {
-			omap_encoder_update(encoder, omap_crtc->mgr,
-					    &omap_crtc->timings);
-			omap_encoder_set_enabled(encoder, true);
-		}
-	}
-}
-
 /* -----------------------------------------------------------------------------
  * CRTC Functions
  */
@@ -437,7 +405,6 @@ static void omap_crtc_enable(struct drm_crtc *crtc)
 			WARN_ON(omap_plane_setup(plane));
 	}
 
-	omap_crtc_encoder_setup(crtc, true);
 	omap_crtc_flush(crtc);
 
 	drm_crtc_vblank_on(crtc);
@@ -462,7 +429,6 @@ static void omap_crtc_disable(struct drm_crtc *crtc)
 			WARN_ON(omap_plane_setup(plane));
 	}
 
-	omap_crtc_encoder_setup(crtc, false);
 	omap_crtc_flush(crtc);
 }
 

drivers/gpu/drm/omapdrm/omap_drv.h

@@ -141,7 +141,7 @@ int omap_drm_irq_install(struct drm_device *dev);
 struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev);
 void omap_fbdev_free(struct drm_device *dev);
 
-const struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc);
+struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc);
 enum omap_channel omap_crtc_channel(struct drm_crtc *crtc);
 void omap_crtc_pre_init(void);
 void omap_crtc_pre_uninit(void);
@@ -156,10 +156,6 @@ void omap_plane_install_properties(struct drm_plane *plane,
 
 struct drm_encoder *omap_encoder_init(struct drm_device *dev,
 		struct omap_dss_device *dssdev);
-int omap_encoder_set_enabled(struct drm_encoder *encoder, bool enabled);
-int omap_encoder_update(struct drm_encoder *encoder,
-		struct omap_overlay_manager *mgr,
-		struct omap_video_timings *timings);
 
 struct drm_connector *omap_connector_init(struct drm_device *dev,
 		int connector_type, struct omap_dss_device *dssdev,

drivers/gpu/drm/omapdrm/omap_encoder.c

@@ -52,8 +52,6 @@ static void omap_encoder_destroy(struct drm_encoder *encoder)
 {
 	struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
 
-	omap_encoder_set_enabled(encoder, false);
-
 	drm_encoder_cleanup(encoder);
 	kfree(omap_encoder);
 }
@@ -93,59 +91,18 @@ static void omap_encoder_mode_set(struct drm_encoder *encoder,
 	}
 }
 
-/*
- * The CRTC drm_crtc_helper_set_mode() didn't really give us the right order.
- * The easiest way to work around this was to make all the encoder-helper's
- * no-op's and have the omap_crtc code take care of the sequencing and call
- * us in the right points.
- *
- * FIXME: Revisit this after switching to atomic updates completely.
- */
-
 static void omap_encoder_disable(struct drm_encoder *encoder)
-{
-}
-
-static void omap_encoder_enable(struct drm_encoder *encoder)
-{
-}
-
-static int omap_encoder_atomic_check(struct drm_encoder *encoder,
-				     struct drm_crtc_state *crtc_state,
-				     struct drm_connector_state *conn_state)
-{
-	return 0;
-}
-
-static const struct drm_encoder_helper_funcs omap_encoder_helper_funcs = {
-	.mode_set = omap_encoder_mode_set,
-	.disable = omap_encoder_disable,
-	.enable = omap_encoder_enable,
-	.atomic_check = omap_encoder_atomic_check,
-};
-
-/*
- * Instead of relying on the helpers for modeset, the omap_crtc code
- * calls these functions in the proper sequence.
- */
-
-int omap_encoder_set_enabled(struct drm_encoder *encoder, bool enabled)
 {
 	struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
 	struct omap_dss_device *dssdev = omap_encoder->dssdev;
 	struct omap_dss_driver *dssdrv = dssdev->driver;
 
-	if (enabled) {
-		return dssdrv->enable(dssdev);
-	} else {
-		dssdrv->disable(dssdev);
-		return 0;
-	}
+	dssdrv->disable(dssdev);
 }
 
-int omap_encoder_update(struct drm_encoder *encoder,
-		struct omap_overlay_manager *mgr,
-		struct omap_video_timings *timings)
+static int omap_encoder_update(struct drm_encoder *encoder,
+			       enum omap_channel channel,
+			       struct omap_video_timings *timings)
 {
 	struct drm_device *dev = encoder->dev;
 	struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
@@ -153,7 +110,7 @@ int omap_encoder_update(struct drm_encoder *encoder,
 	struct omap_dss_driver *dssdrv = dssdev->driver;
 	int ret;
 
-	dssdev->src->manager = mgr;
+	dssdev->src->manager = omap_dss_get_overlay_manager(channel);
 
 	if (dssdrv->check_timings) {
 		ret = dssdrv->check_timings(dssdev, timings);
@@ -179,6 +136,32 @@ int omap_encoder_update(struct drm_encoder *encoder,
 	return 0;
 }
 
+static void omap_encoder_enable(struct drm_encoder *encoder)
+{
+	struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
+	struct omap_dss_device *dssdev = omap_encoder->dssdev;
+	struct omap_dss_driver *dssdrv = dssdev->driver;
+
+	omap_encoder_update(encoder, omap_crtc_channel(encoder->crtc),
+			    omap_crtc_timings(encoder->crtc));
+
+	dssdrv->enable(dssdev);
+}
+
+static int omap_encoder_atomic_check(struct drm_encoder *encoder,
+				     struct drm_crtc_state *crtc_state,
+				     struct drm_connector_state *conn_state)
+{
+	return 0;
+}
+
+static const struct drm_encoder_helper_funcs omap_encoder_helper_funcs = {
+	.mode_set = omap_encoder_mode_set,
+	.disable = omap_encoder_disable,
+	.enable = omap_encoder_enable,
+	.atomic_check = omap_encoder_atomic_check,
+};
+
 /* initialize encoder */
 struct drm_encoder *omap_encoder_init(struct drm_device *dev,
 		struct omap_dss_device *dssdev)