[PATCH 07/16] drm/exynos: get encoder from bridge whenever possible

[Michael Tretter]

The bridge will not necessarily use the encoder of struct exynos_dsi,
but might use another encoder from another drm driver. Therefore, the
driver has to use the encoder from the bridge instead of the one from
exynos_dsi.

Signed-off-by: Michael Tretter <m.tretter at pengutronix.de>
---
 drivers/gpu/drm/exynos/exynos_drm_dsi.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index 657de5407190..51ec37304a69 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1289,7 +1289,7 @@ static irqreturn_t exynos_dsi_irq(int irq, void *dev_id)
 static irqreturn_t exynos_dsi_te_irq_handler(int irq, void *dev_id)
 {
 	struct exynos_dsi *dsi = (struct exynos_dsi *)dev_id;
-	struct drm_encoder *encoder = &dsi->encoder;
+	struct drm_encoder *encoder = dsi->bridge.encoder;
 
 	if (dsi->state & DSIM_STATE_VIDOUT_AVAILABLE)
 		exynos_drm_crtc_te_handler(encoder->crtc);
@@ -1491,11 +1491,10 @@ static const struct drm_connector_helper_funcs exynos_dsi_connector_helper_funcs
 	.get_modes = exynos_dsi_get_modes,
 };
 
-static int exynos_dsi_create_connector(struct drm_encoder *encoder)
+static int exynos_dsi_create_connector(struct exynos_dsi *dsi)
 {
-	struct exynos_dsi *dsi = encoder_to_dsi(encoder);
 	struct drm_connector *connector = &dsi->connector;
-	struct drm_device *drm = encoder->dev;
+	struct drm_device *drm = dsi->bridge.dev;
 	int ret;
 
 	connector->polled = DRM_CONNECTOR_POLL_HPD;
@@ -1510,7 +1509,7 @@ static int exynos_dsi_create_connector(struct drm_encoder *encoder)
 
 	connector->status = connector_status_disconnected;
 	drm_connector_helper_add(connector, &exynos_dsi_connector_helper_funcs);
-	drm_connector_attach_encoder(connector, encoder);
+	drm_connector_attach_encoder(connector, dsi->bridge.encoder);
 	if (!drm->registered)
 		return 0;
 
@@ -1586,7 +1585,7 @@ static int exynos_dsi_host_attach(struct mipi_dsi_host *host,
 		dsi->out_bridge = out_bridge;
 		list_splice_init(&encoder->bridge_chain, &dsi->bridge_chain);
 	} else {
-		int ret = exynos_dsi_create_connector(encoder);
+		int ret = exynos_dsi_create_connector(dsi);
 
 		if (ret) {
 			DRM_DEV_ERROR(dsi->dev,
@@ -1637,7 +1636,7 @@ static int exynos_dsi_host_detach(struct mipi_dsi_host *host,
 				  struct mipi_dsi_device *device)
 {
 	struct exynos_dsi *dsi = host_to_dsi(host);
-	struct drm_device *drm = dsi->encoder.dev;
+	struct drm_device *drm = dsi->bridge.encoder->dev;
 
 	if (dsi->panel) {
 		mutex_lock(&drm->mode_config.mutex);
-- 
2.20.1