4 files changed, 12 insertions, 17 deletions

diff --git a/drivers/gpu/drm/stm/drv.c b/drivers/gpu/drm/stm/drv.c
index b333b37f3f89..c857663eafc2 100644
--- a/drivers/gpu/drm/stm/drv.c
+++ b/drivers/gpu/drm/stm/drv.c
@@ -17,6 +17,7 @@
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
 
 #include "ltdc.h"
 
@@ -31,7 +32,7 @@ static void drv_output_poll_changed(struct drm_device *ddev)
 }
 
 static const struct drm_mode_config_funcs drv_mode_config_funcs = {
-	.fb_create = drm_fb_cma_create,
+	.fb_create = drm_gem_fb_create,
 	.output_poll_changed = drv_output_poll_changed,
 	.atomic_check = drm_atomic_helper_check,
 	.atomic_commit = drm_atomic_helper_commit,
diff --git a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
index 568c5d0461ea..e5b6310240fe 100644
--- a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
+++ b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
@@ -113,11 +113,13 @@ static enum dsi_color dsi_color_from_mipi(enum mipi_dsi_pixel_format fmt)
 
 static int dsi_pll_get_clkout_khz(int clkin_khz, int idf, int ndiv, int odf)
 {
+	int divisor = idf * odf;
+
 	/* prevent from division by 0 */
-	if (idf * odf)
-		return DIV_ROUND_CLOSEST(clkin_khz * ndiv, idf * odf);
+	if (!divisor)
+		return 0;
 
-	return 0;
+	return DIV_ROUND_CLOSEST(clkin_khz * ndiv, divisor);
 }
 
 static int dsi_pll_get_params(int clkin_khz, int clkout_khz,
diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c
index d394a03632c4..735c9081202a 100644
--- a/drivers/gpu/drm/stm/ltdc.c
+++ b/drivers/gpu/drm/stm/ltdc.c
@@ -791,9 +791,8 @@ static const struct drm_encoder_funcs ltdc_encoder_funcs = {
 	.destroy = drm_encoder_cleanup,
 };
 
-static int ltdc_encoder_init(struct drm_device *ddev)
+static int ltdc_encoder_init(struct drm_device *ddev, struct drm_bridge *bridge)
 {
-	struct ltdc_device *ldev = ddev->dev_private;
 	struct drm_encoder *encoder;
 	int ret;
 
@@ -807,7 +806,7 @@ static int ltdc_encoder_init(struct drm_device *ddev)
 	drm_encoder_init(ddev, encoder, &ltdc_encoder_funcs,
 			 DRM_MODE_ENCODER_DPI, NULL);
 
-	ret = drm_bridge_attach(encoder, ldev->bridge, NULL);
+	ret = drm_bridge_attach(encoder, bridge, NULL);
 	if (ret) {
 		drm_encoder_cleanup(encoder);
 		return -EINVAL;
@@ -936,12 +935,9 @@ int ltdc_load(struct drm_device *ddev)
 			ret = PTR_ERR(bridge);
 			goto err;
 		}
-		ldev->is_panel_bridge = true;
 	}
 
-	ldev->bridge = bridge;
-
-	ret = ltdc_encoder_init(ddev);
+	ret = ltdc_encoder_init(ddev, bridge);
 	if (ret) {
 		DRM_ERROR("Failed to init encoder\n");
 		goto err;
@@ -972,8 +968,7 @@ int ltdc_load(struct drm_device *ddev)
 	return 0;
 
 err:
-	if (ldev->is_panel_bridge)
-		drm_panel_bridge_remove(bridge);
+	drm_panel_bridge_remove(bridge);
 
 	clk_disable_unprepare(ldev->pixel_clk);
 
@@ -986,8 +981,7 @@ void ltdc_unload(struct drm_device *ddev)
 
 	DRM_DEBUG_DRIVER("\n");
 
-	if (ldev->is_panel_bridge)
-		drm_panel_bridge_remove(ldev->bridge);
+	drm_of_panel_bridge_remove(ddev->dev->of_node, 0, 0);
 
 	clk_disable_unprepare(ldev->pixel_clk);
 }
diff --git a/drivers/gpu/drm/stm/ltdc.h b/drivers/gpu/drm/stm/ltdc.h
index bc6d6f6419a9..ae437557d715 100644
--- a/drivers/gpu/drm/stm/ltdc.h
+++ b/drivers/gpu/drm/stm/ltdc.h
@@ -24,8 +24,6 @@ struct ltdc_device {
 	struct drm_fbdev_cma *fbdev;
 	void __iomem *regs;
 	struct clk *pixel_clk;	/* lcd pixel clock */
-	struct drm_bridge *bridge;
-	bool is_panel_bridge;
 	struct mutex err_lock;	/* protecting error_status */
 	struct ltdc_caps caps;
 	u32 error_status;