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[2/4] arm64: tegra: Add VBUS supply for micro USB port on Jetson Nano

Message ID 20200806154111.3917284-2-thierry.reding@gmail.com
State Accepted
Headers show
Series [1/4] arm64: tegra: Wire up pinctrl states for all DPAUX controllers | expand

Commit Message

Thierry Reding Aug. 6, 2020, 3:41 p.m. UTC 
From: Thierry Reding <treding@nvidia.com>

The VBUS supply for the micro USB port on Jetson Nano is derived from
the main system supply and always on. Describe in nevertheless to fix
warnings during boot.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

Comments

Michał Mirosław Aug. 8, 2020, 2:56 a.m. UTC | #1 
On Thu, Aug 06, 2020 at 05:41:09PM +0200, Thierry Reding wrote:
> The VBUS supply for the micro USB port on Jetson Nano is derived from
> the main system supply and always on. Describe in nevertheless to fix
> warnings during boot.
[...]
> --- a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
> +++ b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
> @@ -541,6 +541,8 @@ usb2-0 {
>  				mode = "peripheral";
>  				usb-role-switch;
>  
> +				vbus-supply = <&vdd_5v0_usb>;
[...]

If it's not controllable then this is equivalent to setting vdd_5v0_sys
here, isn't it?

Best Regards,
Michał Mirosław
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
index 195a43e2356b..d34338b63c90 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
@@ -541,6 +541,8 @@  usb2-0 {
 				mode = "peripheral";
 				usb-role-switch;
 
+				vbus-supply = <&vdd_5v0_usb>;
+
 				connector {
 					compatible = "gpio-usb-b-connector",
 						     "usb-b-connector";
@@ -843,4 +845,14 @@  avdd_io_edp_1v05: regulator@7 {
 
 		vin-supply = <&avdd_1v05_pll>;
 	};
+
+	vdd_5v0_usb: regulator@8 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VDD_5V_USB";
+		regulator-min-microvolt = <50000000>;
+		regulator-max-microvolt = <50000000>;
+
+		vin-supply = <&vdd_5v0_sys>;
+	};
 };