diff --git a/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt b/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
index 732ef0923cfd..abe867456ce6 100644
--- a/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
+++ b/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
@@ -36,6 +36,8 @@ Optional properties for dp-controller:
 		please refer to the SoC specific binding document:
 		* Documentation/devicetree/bindings/display/exynos/exynos_dp.txt
 		* Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
+	-support-psr:
+		Enable Source's PSR capability.
 
 [1]: Documentation/devicetree/bindings/media/video-interfaces.txt
 -------------------------------------------------------------------------------
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index da066a2c6a7f..6a6219d4a9a7 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -204,6 +204,9 @@ static int analogix_dp_detect_sink_psr(struct analogix_dp_device *dp)
 	unsigned char psr_version;
 	int ret;
 
+	if (!of_property_read_bool(dp->dev->of_node, "support-psr"))
+		return 0;
+
 	ret = drm_dp_dpcd_readb(&dp->aux, DP_PSR_SUPPORT, &psr_version);
 	if (ret != 1) {
 		dev_err(dp->dev, "failed to get PSR version, disable it\n");