diff options
| author | Tim Harvey <tharvey@gateworks.com> | 2021-07-27 09:11:00 -0700 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2021-08-14 12:39:27 +0800 |
| commit | 590dc51bcaf2cb8bb5a6f3c68269fd660e6fad84 (patch) | |
| tree | bc5682a589e0be742158d1bfad8ce04787db8d77 /arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts | |
| parent | bd306fdb4e60bcb1d7ea5431a74092803d3784a6 (diff) | |
arm64: dts: imx8mm-venice-gw7901: add support for USB hub subload
The USB hub has it's reset as GPIO4_IO17 but can be sub-loaded and
VBUS provided by a VBUS regulator with GPIO4_IO2 as the enable and
GPIO1_IO15 as the active-low over-current.
Enable pull-up for GPIO4_IO17 to keep hub out of reset and move VBUS
enable to GPIO4_IO2. Additionally enable pull-up on GPIO1_IO15 so that
if the hub is loaded it never over-currents.
This allows USB to work in both configurations without a device-tree
change.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts index f0fe1e19ae43..efab0a7f9a3e 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts @@ -216,7 +216,7 @@ pinctrl-0 = <&pinctrl_reg_usb2>; compatible = "regulator-fixed"; regulator-name = "usb_usb2_vbus"; - gpio = <&gpio4 17 GPIO_ACTIVE_HIGH>; + gpio = <&gpio4 2 GPIO_ACTIVE_HIGH>; enable-active-high; regulator-min-microvolt = <5000000>; regulator-max-microvolt = <5000000>; @@ -822,8 +822,9 @@ pinctrl_reg_usb2: regusb1grp { fsl,pins = < - MX8MM_IOMUXC_SAI1_TXD5_GPIO4_IO17 0x41 - MX8MM_IOMUXC_GPIO1_IO15_USB2_OTG_OC 0x41 + MX8MM_IOMUXC_SAI1_RXD0_GPIO4_IO2 0x41 + MX8MM_IOMUXC_SAI1_TXD5_GPIO4_IO17 0x140 + MX8MM_IOMUXC_GPIO1_IO15_USB2_OTG_OC 0x140 >; }; |