MLK-14807-1: ARM: dts: imx6qp-sabresd-hdcp: gpu probe failed

I2C2 have to be disabled on hdcp board since those I2C2 bus pins
used for others, that said there is no all pmic regulators. In this
case, ldo-enable mode should be used and reg_arm/reg_soc/reg_pu should
be swithed to internal ldo instead. Otherwise, no reg_pu regulator
probed successfully by gpu driver, and cause gpu probe failed. Also,
cause cpufreq probe failed too.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>

diff --git a/arch/arm/boot/dts/imx6qp-sabresd-hdcp.dts b/arch/arm/boot/dts/imx6qp-sabresd-hdcp.dts
index 8dce5ca..e19ff13 100644 (file)
--- a/arch/arm/boot/dts/imx6qp-sabresd-hdcp.dts
+++ b/arch/arm/boot/dts/imx6qp-sabresd-hdcp.dts
@@ -11,6 +11,11 @@
 
 #include "imx6qp-sabresd.dts"
 
+&gpc {
+       /* use ldo-enable, u-boot will check it and configure */
+       fsl,ldo-bypass = <0>;
+};
+
 &hdmi_video {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_hdmi_hdcp>;
@@ -20,3 +25,15 @@
 &i2c2 {
        status = "disable";
 };
+
+&reg_arm {
+       /delete-property/ vin-supply;
+};
+
+&reg_pu {
+       /delete-property/ vin-supply;
+};
+
+&reg_soc {
+       /delete-property/ vin-supply;
+};