On 14 August 2013 15:28, Mark Brown <broonie@xxxxxxxxxx> wrote:
> From: Mark Brown <broonie@xxxxxxxxxx>
>
> The Arndale has a SMSC USB3503 connected in hardware only mode like a PHY,
> support it using the usb-nop-xceiv binding.
>
> Note that due to a regrettable decision to use a regulator to represent
> the reset signal this uses a fixed voltage regulator to do that, there
> is a plan to use the reset controller binding once that is merged so it
> does not seem worthwhile to fix the usb-nop-xceiv driver at this point.
>
> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
> ---
>
> This doesn't 100% work right now since we don't yet have a solution to
> ensure that this gets started after the USB controller but those
> modifications are small (or can be done at runtime with module loading).
>
> arch/arm/boot/dts/exynos5250-arndale.dts | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
> index 96d528d..e477e23 100644
> --- a/arch/arm/boot/dts/exynos5250-arndale.dts
> +++ b/arch/arm/boot/dts/exynos5250-arndale.dts
> @@ -539,4 +539,22 @@
> rtc {
> status = "okay";
> };
> +
> + usb_hub_bus {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + // SMSC USB3503 connected in hardware only mode as a PHY
> + usb_hub: usb_hub {
> + compatible = "smsc,usb3503a";
> +
> + reset-gpios = <&gpx3 5 1>;
> + connect-gpios = <&gpd1 7 1>;
> + };
> + };
> +
> + usb@12110000 {
> + usb-phy = <&usb2_phy>;
> + };
ehci-s5p driver doesn't use 'usb-phy' property to find the PHY driver,
hence this is not required.
Without this change,
Tested-by: Tushar Behera <tushar.behera@xxxxxxxxxx>
--
Tushar Behera
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