drm/bridge: analogix_dp: remove clk handling from analogix_dp_set_bridge

The clock is already managed by runtime PM, which is properly invoked
from the analogix_dp_set_bridge function, so there is no need for an
additional reference.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240619182200.3752465-6-l.stach@pengutronix.de

drivers/gpu/drm/bridge/analogix/analogix_dp_core.c

@@ -1251,12 +1251,6 @@ static int analogix_dp_set_bridge(struct analogix_dp_device *dp)
 
 	pm_runtime_get_sync(dp->dev);
 
-	ret = clk_prepare_enable(dp->clock);
-	if (ret < 0) {
-		DRM_ERROR("Failed to prepare_enable the clock clk [%d]\n", ret);
-		goto out_dp_clk_pre;
-	}
-
 	if (dp->plat_data->power_on)
 		dp->plat_data->power_on(dp->plat_data);
 
@@ -1290,8 +1284,7 @@ static int analogix_dp_set_bridge(struct analogix_dp_device *dp)
 	phy_power_off(dp->phy);
 	if (dp->plat_data->power_off)
 		dp->plat_data->power_off(dp->plat_data);
-	clk_disable_unprepare(dp->clock);
-out_dp_clk_pre:
+
 	pm_runtime_put_sync(dp->dev);
 
 	return ret;
@@ -1360,8 +1353,6 @@ static void analogix_dp_bridge_disable(struct drm_bridge *bridge)
 	analogix_dp_set_analog_power_down(dp, POWER_ALL, 1);
 	phy_power_off(dp->phy);
 
-	clk_disable_unprepare(dp->clock);
-
 	pm_runtime_put_sync(dp->dev);
 
 	ret = analogix_dp_prepare_panel(dp, false, true);