diff --git a/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_main.c b/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_main.c
index a36bd89dda6b..13e4c1727126 100644
--- a/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_main.c
+++ b/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_main.c
@@ -3419,6 +3419,9 @@ static int amhdmitx_remove(struct platform_device *pdev)
 static int amhdmitx_suspend(struct platform_device *pdev,
 	pm_message_t state)
 {
+	hdmitx_device.HWOp.CntlDDC(&hdmitx_device,
+		DDC_RESET_HDCP, 0);
+	pr_info("amhdmitx: suspend and reset hdcp\n");
 	return 0;
 }
 
diff --git a/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hw/hdmi_tx_hw.c b/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hw/hdmi_tx_hw.c
index f684d4f446b0..a39b26ae0a36 100644
--- a/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hw/hdmi_tx_hw.c
+++ b/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hw/hdmi_tx_hw.c
@@ -3466,7 +3466,10 @@ static int hdmitx_cntl_ddc(struct hdmitx_dev *hdev, unsigned int cmd,
 			hdmitx_wr_reg(HDMITX_DWC_I2CM_READ_BUFF0 + i, 0);
 		break;
 	case DDC_RESET_HDCP:
-
+		hdmitx_set_reg_bits(HDMITX_TOP_SW_RESET, 1, 5, 1);
+		udelay(10);
+		hdmitx_set_reg_bits(HDMITX_TOP_SW_RESET, 0, 5, 1);
+		udelay(10);
 		break;
 	case DDC_HDCP_MUX_INIT:
 		if (argv == 2) {