Re: [PATCH 4/6] ARM: dts: sun8i-a?3-q8-tablet.dts: Add full otg support

[Chen-Yu Tsai <wens@xxxxxxxx>]

Hi,

On Sat, Jun 11, 2016 at 9:53 PM, Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
> Now that we've all the necessary bits in place we can enable
> full otg support on these tablets.
>
> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
> ---
>  arch/arm/boot/dts/sun8i-a23-q8-tablet.dts | 15 ---------------
>  arch/arm/boot/dts/sun8i-a33-q8-tablet.dts | 15 ---------------
>  arch/arm/boot/dts/sun8i-q8-common.dtsi    | 31 +++++++++++++++++++++++++++++++
>  3 files changed, 31 insertions(+), 30 deletions(-)
>
> diff --git a/arch/arm/boot/dts/sun8i-a23-q8-tablet.dts b/arch/arm/boot/dts/sun8i-a23-q8-tablet.dts
> index 6062ea7..956320a 100644
> --- a/arch/arm/boot/dts/sun8i-a23-q8-tablet.dts
> +++ b/arch/arm/boot/dts/sun8i-a23-q8-tablet.dts
> @@ -48,18 +48,3 @@
>         model = "Q8 A23 Tablet";
>         compatible = "allwinner,q8-a23", "allwinner,sun8i-a23";
>  };
> -
> -/*
> - * FIXME for now we only support host mode and rely on u-boot to have
> - * turned on Vbus which is controlled by the axp223 pmic on the board.
> - *
> - * Once we have axp223 support we should switch to fully supporting otg.
> - */
> -&usb_otg {
> -       dr_mode = "host";
> -       status = "okay";
> -};
> -
> -&usbphy {
> -       status = "okay";
> -};
> diff --git a/arch/arm/boot/dts/sun8i-a33-q8-tablet.dts b/arch/arm/boot/dts/sun8i-a33-q8-tablet.dts
> index 44b3229..b0bc236 100644
> --- a/arch/arm/boot/dts/sun8i-a33-q8-tablet.dts
> +++ b/arch/arm/boot/dts/sun8i-a33-q8-tablet.dts
> @@ -48,18 +48,3 @@
>         model = "Q8 A33 Tablet";
>         compatible = "allwinner,q8-a33", "allwinner,sun8i-a33";
>  };
> -
> -/*
> - * FIXME for now we only support host mode and rely on u-boot to have
> - * turned on Vbus which is controlled by the axp223 pmic on the board.
> - *
> - * Once we have axp223 support we should switch to fully supporting otg.
> - */
> -&usb_otg {
> -       dr_mode = "host";
> -       status = "okay";
> -};
> -
> -&usbphy {
> -       status = "okay";
> -};
> diff --git a/arch/arm/boot/dts/sun8i-q8-common.dtsi b/arch/arm/boot/dts/sun8i-q8-common.dtsi
> index 346a49d..991087f 100644
> --- a/arch/arm/boot/dts/sun8i-q8-common.dtsi
> +++ b/arch/arm/boot/dts/sun8i-q8-common.dtsi
> @@ -87,6 +87,13 @@
>                 allwinner,drive = <SUN4I_PINCTRL_10_MA>;
>                 allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
>         };
> +
> +       usb0_id_detect_pin: usb0_id_detect_pin@0 {
> +               allwinner,pins = "PH8";
> +               allwinner,function = "gpio_in";
> +               allwinner,drive = <SUN4I_PINCTRL_10_MA>;
> +               allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
> +       };
>  };
>
>  &r_rsb {
> @@ -98,6 +105,7 @@
>                 interrupt-parent = <&nmi_intc>;
>                 interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
>                 eldoin-supply = <&reg_dcdc1>;
> +               x-powers,drive-vbus-en;
>         };
>  };
>
> @@ -163,6 +171,11 @@
>         regulator-name = "vcc-dram";
>  };
>
> +&reg_drivevbus {
> +       regulator-name = "usb0-vbus";
> +       status = "okay";

Adding a drivevbus-supply referencing vcc_5v0 (in the axp node) so
it doesn't show 0V would be nice.

Sorry for the late reply. I was out on vacation for a few days.

ChenYu

> +};
> +
>  &reg_rtc_ldo {
>         regulator-name = "vcc-rtc";
>  };
> @@ -176,3 +189,21 @@
>  &simplefb_lcd {
>         vcc-lcd-supply = <&reg_dc1sw>;
>  };
> +
> +&usb_otg {
> +       dr_mode = "otg";
> +       status = "okay";
> +};
> +
> +&usb_power_supply {
> +       status = "okay";
> +};
> +
> +&usbphy {
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&usb0_id_detect_pin>;
> +       usb0_id_det-gpio = <&pio 7 8 GPIO_ACTIVE_HIGH>; /* PH8 */
> +       usb0_vbus_power-supply = <&usb_power_supply>;
> +       usb0_vbus-supply = <&reg_drivevbus>;
> +       status = "okay";
> +};
> --
> 2.7.4
>
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