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ARM: tegra: nexus7: Enable USB OTG mode

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Nexus 7 has OTG-cable microUSB port, enable OTG mode. USB peripheral
devices now can be connected to Nexus 7 using OTG adapter, switching
USB port into host mode.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Dmitry Osipenko
2021-09-12 21:17:17 +03:00
committed by Thierry Reding
parent b460ecc0b3
commit 98473f283b
1 changed files with 23 additions and 2 deletions
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25
arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi
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@@ -944,9 +944,29 @@ power_supply: charger@6a {
interrupts = <TEGRA_GPIO(V, 1) IRQ_TYPE_EDGE_BOTH>;
summit,enable-charge-control = <SMB3XX_CHG_ENABLE_PIN_ACTIVE_LOW>;
summit,inok-polarity = <SMB3XX_SYSOK_INOK_ACTIVE_LOW>;
summit,enable-usb-charging;
monitored-battery = <&battery_cell>;
usb_vbus: usb-vbus {
regulator-name = "usb_vbus";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
regulator-min-microamp = <750000>;
regulator-max-microamp = <750000>;
/*
* SMB347 INOK input pin is connected to PMIC's
* ACOK output, which is fixed to ACTIVE_LOW as
* long as battery voltage is in a good range.
*
* Active INOK disables SMB347 output, so polarity
* needs to be toggled when we want to get the
* output.
*/
summit,needs-inok-toggle;
};
};
};
@@ -1019,12 +1039,13 @@ sdmmc4: mmc@78000600 {
usb@7d000000 {
compatible = "nvidia,tegra30-udc";
status = "okay";
dr_mode = "peripheral";
dr_mode = "otg";
vbus-supply = <&usb_vbus>;
};
usb-phy@7d000000 {
status = "okay";
dr_mode = "peripheral";
dr_mode = "otg";
nvidia,hssync-start-delay = <0>;
nvidia,xcvr-lsfslew = <2>;
nvidia,xcvr-lsrslew = <2>;