2 files changed, 20 insertions, 17 deletions

diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 0ae3a025efe9..134986dc2783 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -1688,6 +1688,11 @@ static void tegra_dc_commit_state(struct tegra_dc *dc,
 			dev_err(dc->dev,
 				"failed to set clock rate to %lu Hz\n",
 				state->pclk);
+
+		err = clk_set_rate(dc->clk, state->pclk);
+		if (err < 0)
+			dev_err(dc->dev, "failed to set clock %pC to %lu Hz: %d\n",
+				dc->clk, state->pclk, err);
 	}
 
 	DRM_DEBUG_KMS("rate: %lu, div: %u\n", clk_get_rate(dc->clk),
@@ -1698,11 +1703,6 @@ static void tegra_dc_commit_state(struct tegra_dc *dc,
 		value = SHIFT_CLK_DIVIDER(state->div) | PIXEL_CLK_DIVIDER_PCD1;
 		tegra_dc_writel(dc, value, DC_DISP_DISP_CLOCK_CONTROL);
 	}
-
-	err = clk_set_rate(dc->clk, state->pclk);
-	if (err < 0)
-		dev_err(dc->dev, "failed to set clock %pC to %lu Hz: %d\n",
-			dc->clk, state->pclk, err);
 }
 
 static void tegra_dc_stop(struct tegra_dc *dc)
@@ -2501,22 +2501,18 @@ static int tegra_dc_couple(struct tegra_dc *dc)
 	 * POWER_CONTROL registers during CRTC enabling.
 	 */
 	if (dc->soc->coupled_pm && dc->pipe == 1) {
-		u32 flags = DL_FLAG_PM_RUNTIME | DL_FLAG_AUTOREMOVE_CONSUMER;
-		struct device_link *link;
-		struct device *partner;
+		struct device *companion;
+		struct tegra_dc *parent;
 
-		partner = driver_find_device(dc->dev->driver, NULL, NULL,
-					     tegra_dc_match_by_pipe);
-		if (!partner)
+		companion = driver_find_device(dc->dev->driver, NULL, (const void *)0,
+					       tegra_dc_match_by_pipe);
+		if (!companion)
 			return -EPROBE_DEFER;
 
-		link = device_link_add(dc->dev, partner, flags);
-		if (!link) {
-			dev_err(dc->dev, "failed to link controllers\n");
-			return -EINVAL;
-		}
+		parent = dev_get_drvdata(companion);
+		dc->client.parent = &parent->client;
 
-		dev_dbg(dc->dev, "coupled to %s\n", dev_name(partner));
+		dev_dbg(dc->dev, "coupled to %s\n", dev_name(companion));
 	}
 
 	return 0;
diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
index f02a035dda45..7b88261f57bb 100644
--- a/drivers/gpu/drm/tegra/sor.c
+++ b/drivers/gpu/drm/tegra/sor.c
@@ -3115,6 +3115,12 @@ static int tegra_sor_init(struct host1x_client *client)
 	 * kernel is possible.
 	 */
 	if (sor->rst) {
+		err = pm_runtime_resume_and_get(sor->dev);
+		if (err < 0) {
+			dev_err(sor->dev, "failed to get runtime PM: %d\n", err);
+			return err;
+		}
+
 		err = reset_control_acquire(sor->rst);
 		if (err < 0) {
 			dev_err(sor->dev, "failed to acquire SOR reset: %d\n",
@@ -3148,6 +3154,7 @@ static int tegra_sor_init(struct host1x_client *client)
 		}
 
 		reset_control_release(sor->rst);
+		pm_runtime_put(sor->dev);
 	}
 
 	err = clk_prepare_enable(sor->clk_safe);