| Message ID | 20170724125958.11939-3-gary.bisson@boundarydevices.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, Jul 24, 2017 at 9:59 AM, Gary Bisson <gary.bisson@boundarydevices.com> wrote: > Declared as a regulator since the driver doesn't have a reset-gpios > property for this. > > This ensures that the PHY is woken up, not depending on the state the > second stage bootloader leaves the pin. > > This is a workaround until a proper mechanism is provided to reset such > devices like the pwrseq library [1] for instance. > > [1] https://lkml.org/lkml/2017/2/10/779 > > Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
diff --git a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi index f22e5879340b..d309a4d0eb08 100644 --- a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi +++ b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi @@ -108,6 +108,18 @@ startup-delay-us = <70000>; enable-active-high; }; + + reg_usb_h1_vbus: regulator@5 { + compatible = "regulator-fixed"; + reg = <5>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usbh1>; + regulator-name = "usb_h1_vbus"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&gpio7 12 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; }; gpio-keys { @@ -515,6 +527,12 @@ >; }; + pinctrl_usbh1: usbh1grp { + fsl,pins = < + MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x030b0 + >; + }; + pinctrl_usbotg: usbotggrp { fsl,pins = < MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x17059 @@ -629,6 +647,7 @@ }; &usbh1 { + vbus-supply = <®_usb_h1_vbus>; status = "okay"; };
Declared as a regulator since the driver doesn't have a reset-gpios property for this. This ensures that the PHY is woken up, not depending on the state the second stage bootloader leaves the pin. This is a workaround until a proper mechanism is provided to reset such devices like the pwrseq library [1] for instance. [1] https://lkml.org/lkml/2017/2/10/779 Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com> --- arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)