ldo7_reg should not work as regulator since it is set to 'disabled' state in the omap5-board-common.dtsi and the state is not changed to 'okay' this means that the ldo7_reg is not available to be used in the igep0050 DTS file. ldo4_reg is used by all other OMAP5 boards and this is most likely the correct regulator to use with hdmi. The hdmi needs 1.8V, but the ldo7_reg, based on the dtsi is 2V only.
Signed-off-by: Peter Ujfalusi <[email protected]> --- Tony, I don't have access to the schematics, but I believe tha the ldo7_reg is not the correct regulator to be used for hdmi. If you have access and it is really ldo7_reg, then we should have this in the omap5-igep0050.dts file: &ldo5_reg { status = "okay"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; }; Regards, Peter arch/arm/boot/dts/omap5-igep0050.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/omap5-igep0050.dts b/arch/arm/boot/dts/omap5-igep0050.dts index 46ecb1dd3b5c..6c8d40327c68 100644 --- a/arch/arm/boot/dts/omap5-igep0050.dts +++ b/arch/arm/boot/dts/omap5-igep0050.dts @@ -20,7 +20,7 @@ }; &hdmi { - vdda-supply = <&ldo7_reg>; + vdda-supply = <&ldo4_reg>; }; &i2c4 { -- 2.8.1
