[PATCH 52/59] drm/arc: Initialize sim connector before display pipe

[Daniel Vetter]

That way we can get rid of this final piece of init code, and use the
simple pipe helpers as intended.

Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
Cc: Alexey Brodkin <abrodkin at synopsys.com>
---
 drivers/gpu/drm/arc/arcpgu_drv.c | 51 ++++++++++----------------------
 1 file changed, 16 insertions(+), 35 deletions(-)

diff --git a/drivers/gpu/drm/arc/arcpgu_drv.c b/drivers/gpu/drm/arc/arcpgu_drv.c
index b0c941d91545..857812f25bec 100644
--- a/drivers/gpu/drm/arc/arcpgu_drv.c
+++ b/drivers/gpu/drm/arc/arcpgu_drv.c
@@ -95,32 +95,11 @@ static const struct drm_connector_funcs arcpgu_drm_connector_funcs = {
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
 
-static int arcpgu_drm_sim_init(struct drm_device *drm, struct device_node *np)
+static int arcpgu_drm_sim_init(struct drm_device *drm, struct drm_connector *connector)
 {
-	struct arcpgu_drm_private *arcpgu = dev_to_arcpgu(drm);
-	struct drm_encoder *encoder;
-	struct drm_connector *connector;
-	int ret;
-
-	encoder = &arcpgu->pipe.encoder;
-
-	connector = &arcpgu->sim_conn;
 	drm_connector_helper_add(connector, &arcpgu_drm_connector_helper_funcs);
-
-	ret = drm_connector_init(drm, connector, &arcpgu_drm_connector_funcs,
+	return drm_connector_init(drm, connector, &arcpgu_drm_connector_funcs,
 			DRM_MODE_CONNECTOR_VIRTUAL);
-	if (ret < 0) {
-		dev_err(drm->dev, "failed to initialize drm connector\n");
-		return ret;
-	}
-
-	ret = drm_connector_attach_encoder(connector, encoder);
-	if (ret < 0) {
-		dev_err(drm->dev, "could not attach connector to encoder\n");
-		return ret;
-	}
-
-	return 0;
 }
 
 #define ENCODE_PGU_XY(x, y)	((((x) - 1) << 16) | ((y) - 1))
@@ -273,6 +252,7 @@ static int arcpgu_load(struct arcpgu_drm_private *arcpgu)
 {
 	struct platform_device *pdev = to_platform_device(arcpgu->drm.dev);
 	struct device_node *encoder_node = NULL, *endpoint_node = NULL;
+	struct drm_connector *connector = NULL;
 	struct drm_device *drm = &arcpgu->drm;
 	struct resource *res;
 	int ret;
@@ -307,13 +287,6 @@ static int arcpgu_load(struct arcpgu_drm_private *arcpgu)
 	if (dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32)))
 		return -ENODEV;
 
-	ret = drm_simple_display_pipe_init(drm, &arcpgu->pipe, &arc_pgu_pipe_funcs,
-					   arc_pgu_supported_formats,
-					   ARRAY_SIZE(arc_pgu_supported_formats),
-					   NULL, NULL);
-	if (ret)
-		return ret;
-
 	/*
 	 * There is only one output port inside each device. It is linked with
 	 * encoder endpoint.
@@ -322,8 +295,21 @@ static int arcpgu_load(struct arcpgu_drm_private *arcpgu)
 	if (endpoint_node) {
 		encoder_node = of_graph_get_remote_port_parent(endpoint_node);
 		of_node_put(endpoint_node);
+	} else {
+		connector = &arcpgu->sim_conn;
+		dev_info(drm->dev, "no encoder found. Assumed virtual LCD on simulation platform\n");
+		ret = arcpgu_drm_sim_init(drm, connector);
+		if (ret < 0)
+			return ret;
 	}
 
+	ret = drm_simple_display_pipe_init(drm, &arcpgu->pipe, &arc_pgu_pipe_funcs,
+					   arc_pgu_supported_formats,
+					   ARRAY_SIZE(arc_pgu_supported_formats),
+					   NULL, connector);
+	if (ret)
+		return ret;
+
 	if (encoder_node) {
 		struct drm_bridge *bridge;
 
@@ -335,11 +321,6 @@ static int arcpgu_load(struct arcpgu_drm_private *arcpgu)
 		ret = drm_simple_display_pipe_attach_bridge(&arcpgu->pipe, bridge);
 		if (ret)
 			return ret;
-	} else {
-		dev_info(drm->dev, "no encoder found. Assumed virtual LCD on simulation platform\n");
-		ret = arcpgu_drm_sim_init(drm, NULL);
-		if (ret < 0)
-			return ret;
 	}
 
 	drm_mode_config_reset(drm);
-- 
2.25.1