[PATCH] arm: dts: rockchip: rk3399-roc-pc: Enable FE1.1 USB 2.0 HUB on roc-rk3399-pc

[Kever Yang]

On 2020/3/25 下午11:37, sunil at amarulasolutions.com wrote:
> From: Suniel Mahesh <sunil at amarulasolutions.com>
>
> roc-rk3399-pc has an FE1.1 USB 2.0 HUB which connects two USB ports
> (HOST1 and HOST2). For end devices to work we need to enable USB hub
> so that HOST detects there presence and enumerates them accordingly.
> This requires explicit pinctrl within gpio enablement.
>
> Signed-off-by: Suniel Mahesh <sunil at amarulasolutions.com>


Reviewed-by: Kever Yang <kever.yang at rock-chips.com>

Thanks,
- Kever
> ---
> Note:
> 1. tested this on roc-rk3399-pc board version roc-rk3399-pc-v1.1-a 2018-9-25
> 2. after this changeset, HOST1 works but HOST2 still doesnt work. I have
> tested them with linux-next, linux-rockchip and Firefly's source (both u-boot
> and kernel), HOST2 doesn't work.
> 3. Request to test this changetest who have access to target and please advice
> on HOST2
> ---
>   arch/arm/dts/rk3399-roc-pc-u-boot.dtsi | 10 ++++++++++
>   1 file changed, 10 insertions(+)
>
> diff --git a/arch/arm/dts/rk3399-roc-pc-u-boot.dtsi b/arch/arm/dts/rk3399-roc-pc-u-boot.dtsi
> index 5746442..598e0e2 100644
> --- a/arch/arm/dts/rk3399-roc-pc-u-boot.dtsi
> +++ b/arch/arm/dts/rk3399-roc-pc-u-boot.dtsi
> @@ -14,6 +14,16 @@
>   	chosen {
>   		u-boot,spl-boot-order = "same-as-spl", &sdhci, &sdmmc;
>   	};
> +
> +	vcc_hub_en: vcc_hub_en-regulator {
> +		compatible = "regulator-fixed";
> +		enable-active-high;
> +		gpio = <&gpio2 RK_PA4 GPIO_ACTIVE_HIGH>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&hub_rst>;
> +		regulator-name = "vcc_hub_en";
> +		regulator-always-on;
> +	};
>   };
>   
>   &vdd_log {