From: Thierry Reding treding@nvidia.com
Add the 5V HDMI regulator and hook up the VDD_1V0 and VDD_1V8HS supplies from the PMIC to the display block. Also enable the display hub which is responsible for instantiating the display controllers. Finally, enable the third SOR that drives the TMDS signals to the HDMI connector.
Signed-off-by: Thierry Reding treding@nvidia.com --- .../arm64/boot/dts/nvidia/tegra194-p2888.dtsi | 15 +++++++++-- .../boot/dts/nvidia/tegra194-p2972-0000.dts | 25 +++++++++++++++++++ 2 files changed, 38 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi b/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi index 57d3f00464ce..204a207ff4bd 100644 --- a/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi @@ -163,7 +163,7 @@ in-ldo4-6-supply = <&vdd_5v0_sys>; in-ldo7-8-supply = <&vdd_1v8ls>;
- sd0 { + vdd_1v0: sd0 { regulator-name = "VDD_1V0"; regulator-min-microvolt = <1000000>; regulator-max-microvolt = <1000000>; @@ -171,7 +171,7 @@ regulator-boot-on; };
- sd1 { + vdd_1v8hs: sd1 { regulator-name = "VDD_1V8HS"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; @@ -262,5 +262,16 @@ regulator-always-on; regulator-boot-on; }; + + vdd_hdmi: regulator@1 { + compatible = "regulator-fixed"; + reg = <1>; + + regulator-name = "VDD_5V0_HDMI_CON"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + gpio = <&gpio TEGRA194_MAIN_GPIO(A, 3) GPIO_ACTIVE_HIGH>; + enable-active-high; + }; }; }; diff --git a/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts b/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts index 86f05504ca38..cbae8e8b1281 100644 --- a/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts +++ b/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts @@ -13,6 +13,31 @@ status = "okay"; };
+ host1x@13e00000 { + display-hub@15200000 { + status = "okay"; + }; + + dpaux@155e0000 { + status = "okay"; + }; + + sor@15b80000 { + status = "okay"; + + avdd-io-supply = <&vdd_1v0>; + vdd-pll-supply = <&vdd_1v8hs>; + hdmi-supply = <&vdd_hdmi>; + + nvidia,ddc-i2c-bus = <&ddc>; + nvidia,hpd-gpio = <&gpio TEGRA194_MAIN_GPIO(M, 2) GPIO_ACTIVE_LOW>; + }; + }; + + ddc: i2c@31c0000 { + status = "okay"; + }; + pwm@c340000 { status = "okay"; };