drm/tegra: Use simple encoder

The tegra driver uses empty implementations for its encoders. Replace
the code with the generic simple encoder.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-16-tzimmermann@suse.de

drivers/gpu/drm/tegra/drm.h

@@ -152,8 +152,6 @@ enum drm_connector_status
 tegra_output_connector_detect(struct drm_connector *connector, bool force);
 void tegra_output_connector_destroy(struct drm_connector *connector);
 
-void tegra_output_encoder_destroy(struct drm_encoder *encoder);
-
 /* from dpaux.c */
 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np);
 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux);

drivers/gpu/drm/tegra/dsi.c

@@ -22,6 +22,7 @@
 #include <drm/drm_file.h>
 #include <drm/drm_mipi_dsi.h>
 #include <drm/drm_panel.h>
+#include <drm/drm_simple_kms_helper.h>
 
 #include "dc.h"
 #include "drm.h"
@@ -815,10 +816,6 @@ static const struct drm_connector_helper_funcs tegra_dsi_connector_helper_funcs
 	.mode_valid = tegra_dsi_connector_mode_valid,
 };
 
-static const struct drm_encoder_funcs tegra_dsi_encoder_funcs = {
-	.destroy = tegra_output_encoder_destroy,
-};
-
 static void tegra_dsi_unprepare(struct tegra_dsi *dsi)
 {
 	int err;
@@ -1049,9 +1046,8 @@ static int tegra_dsi_init(struct host1x_client *client)
 					 &tegra_dsi_connector_helper_funcs);
 		dsi->output.connector.dpms = DRM_MODE_DPMS_OFF;
 
-		drm_encoder_init(drm, &dsi->output.encoder,
-				 &tegra_dsi_encoder_funcs,
-				 DRM_MODE_ENCODER_DSI, NULL);
+		drm_simple_encoder_init(drm, &dsi->output.encoder,
+					DRM_MODE_ENCODER_DSI);
 		drm_encoder_helper_add(&dsi->output.encoder,
 				       &tegra_dsi_encoder_helper_funcs);
 

drivers/gpu/drm/tegra/hdmi.c

@@ -22,6 +22,7 @@
 #include <drm/drm_file.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_probe_helper.h>
+#include <drm/drm_simple_kms_helper.h>
 
 #include "hda.h"
 #include "hdmi.h"
@@ -1127,10 +1128,6 @@ tegra_hdmi_connector_helper_funcs = {
 	.mode_valid = tegra_hdmi_connector_mode_valid,
 };
 
-static const struct drm_encoder_funcs tegra_hdmi_encoder_funcs = {
-	.destroy = tegra_output_encoder_destroy,
-};
-
 static void tegra_hdmi_encoder_disable(struct drm_encoder *encoder)
 {
 	struct tegra_output *output = encoder_to_output(encoder);
@@ -1436,8 +1433,8 @@ static int tegra_hdmi_init(struct host1x_client *client)
 				 &tegra_hdmi_connector_helper_funcs);
 	hdmi->output.connector.dpms = DRM_MODE_DPMS_OFF;
 
-	drm_encoder_init(drm, &hdmi->output.encoder, &tegra_hdmi_encoder_funcs,
-			 DRM_MODE_ENCODER_TMDS, NULL);
+	drm_simple_encoder_init(drm, &hdmi->output.encoder,
+				DRM_MODE_ENCODER_TMDS);
 	drm_encoder_helper_add(&hdmi->output.encoder,
 			       &tegra_hdmi_encoder_helper_funcs);
 

drivers/gpu/drm/tegra/output.c

@@ -6,6 +6,7 @@
 
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_panel.h>
+#include <drm/drm_simple_kms_helper.h>
 
 #include "drm.h"
 #include "dc.h"
@@ -79,11 +80,6 @@ void tegra_output_connector_destroy(struct drm_connector *connector)
 	drm_connector_cleanup(connector);
 }
 
-void tegra_output_encoder_destroy(struct drm_encoder *encoder)
-{
-	drm_encoder_cleanup(encoder);
-}
-
 static irqreturn_t hpd_irq(int irq, void *data)
 {
 	struct tegra_output *output = data;

drivers/gpu/drm/tegra/rgb.c

@@ -8,6 +8,7 @@
 
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_panel.h>
+#include <drm/drm_simple_kms_helper.h>
 
 #include "drm.h"
 #include "dc.h"
@@ -110,10 +111,6 @@ static const struct drm_connector_helper_funcs tegra_rgb_connector_helper_funcs
 	.mode_valid = tegra_rgb_connector_mode_valid,
 };
 
-static const struct drm_encoder_funcs tegra_rgb_encoder_funcs = {
-	.destroy = tegra_output_encoder_destroy,
-};
-
 static void tegra_rgb_encoder_disable(struct drm_encoder *encoder)
 {
 	struct tegra_output *output = encoder_to_output(encoder);
@@ -281,8 +278,7 @@ int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc)
 				 &tegra_rgb_connector_helper_funcs);
 	output->connector.dpms = DRM_MODE_DPMS_OFF;
 
-	drm_encoder_init(drm, &output->encoder, &tegra_rgb_encoder_funcs,
-			 DRM_MODE_ENCODER_LVDS, NULL);
+	drm_simple_encoder_init(drm, &output->encoder, DRM_MODE_ENCODER_LVDS);
 	drm_encoder_helper_add(&output->encoder,
 			       &tegra_rgb_encoder_helper_funcs);
 

drivers/gpu/drm/tegra/sor.c

@@ -23,6 +23,7 @@
 #include <drm/drm_file.h>
 #include <drm/drm_panel.h>
 #include <drm/drm_scdc_helper.h>
+#include <drm/drm_simple_kms_helper.h>
 
 #include "dc.h"
 #include "dp.h"
@@ -1796,10 +1797,6 @@ static const struct drm_connector_helper_funcs tegra_sor_connector_helper_funcs
 	.mode_valid = tegra_sor_connector_mode_valid,
 };
 
-static const struct drm_encoder_funcs tegra_sor_encoder_funcs = {
-	.destroy = tegra_output_encoder_destroy,
-};
-
 static int
 tegra_sor_encoder_atomic_check(struct drm_encoder *encoder,
 			       struct drm_crtc_state *crtc_state,
@@ -3093,8 +3090,7 @@ static int tegra_sor_init(struct host1x_client *client)
 				 &tegra_sor_connector_helper_funcs);
 	sor->output.connector.dpms = DRM_MODE_DPMS_OFF;
 
-	drm_encoder_init(drm, &sor->output.encoder, &tegra_sor_encoder_funcs,
-			 encoder, NULL);
+	drm_simple_encoder_init(drm, &sor->output.encoder, encoder);
 	drm_encoder_helper_add(&sor->output.encoder, helpers);
 
 	drm_connector_attach_encoder(&sor->output.connector,