pmdomain: imx8mp-blk-ctrl: Keep the NOC_HDCP clock enabled

Keep the NOC_HDCP clock always enabled to fix the potential hang
caused by the NoC ADB400 port power down handshake.

Fixes: 77b0ddb ("soc: imx: add i.MX8MP HDMI blk ctrl HDCP/HRV_MWR")
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Author: JackyBai

drivers/pmdomain/imx/imx8mp-blk-ctrl.c

@@ -352,9 +352,6 @@ static void imx8mp_hdmi_blk_ctrl_power_on(struct imx8mp_blk_ctrl *bc,
 		regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(12));
 		regmap_clear_bits(bc->regmap, HDMI_TX_CONTROL0, BIT(3));
 		break;
-	case IMX8MP_HDMIBLK_PD_HDCP:
-		regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(11));
-		break;
 	case IMX8MP_HDMIBLK_PD_HRV:
 		regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(3) | BIT(4) | BIT(5));
 		regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(15));
@@ -408,9 +405,6 @@ static void imx8mp_hdmi_blk_ctrl_power_off(struct imx8mp_blk_ctrl *bc,
 		regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(7));
 		regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(22) | BIT(24));
 		break;
-	case IMX8MP_HDMIBLK_PD_HDCP:
-		regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(11));
-		break;
 	case IMX8MP_HDMIBLK_PD_HRV:
 		regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(15));
 		regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(3) | BIT(4) | BIT(5));
@@ -439,7 +433,7 @@ static int imx8mp_hdmi_power_notifier(struct notifier_block *nb,
 	regmap_write(bc->regmap, HDMI_RTX_CLK_CTL0, 0x0);
 	regmap_write(bc->regmap, HDMI_RTX_CLK_CTL1, 0x0);
 	regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0,
-			BIT(0) | BIT(1) | BIT(10));
+			BIT(0) | BIT(1) | BIT(10) | BIT(11));
 	regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(0));
 
 	/*