Hi Srinivas,
Some review are comments inline.
On Monday 29 September 2014 02:45 PM, Srinivas Kandagatla wrote:
> This patch adds USB OTG support on USB1 of APQ8064 SOC.
> Tested on IFC6410 with ethernet gadget.
>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>
> ---
> arch/arm/boot/dts/qcom-apq8064-ifc6410.dts | 14 +++++++++
> arch/arm/boot/dts/qcom-apq8064.dtsi | 46
> ++++++++++++++++++++++++++++++
> 2 files changed, 60 insertions(+)
>
> diff --git a/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
> b/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
> index d6036b8..f41fb39 100644
> --- a/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
> +++ b/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
> @@ -40,6 +40,11 @@
> };
> };
>
> + /* OTG */
> + usb1_phy:phy@12500000 {
> + status = "ok";
Its canonical value is "okay" (although in practice anything
other than "disabled" should work).
> + };
> +
> usb3_phy:phy@12520000 {
> status = "ok";
> };
> @@ -48,6 +53,15 @@
> status = "ok";
> };
>
> + gadget1:gadget@12500000 {
> + status = "ok";
> + };
> +
> + /* OTG */
> + usb1: usb@12500000 {
> + status = "ok";
> + };
> +
> usb3: usb@12520000 {
> status = "ok";
> };
> diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi
> b/arch/arm/boot/dts/qcom-apq8064.dtsi
> index 491a136..38d3efa 100644
> --- a/arch/arm/boot/dts/qcom-apq8064.dtsi
> +++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
> @@ -284,6 +284,16 @@
> qcom,boot-load = <50000>;
> };
>
> + pm8921_l4: pm8921-l4 {
> + compatible = "qcom,rpm-pm8921-pldo";
> + reg = <QCOM_RPM_PM8921_LDO4>;
> +
> + regulator-min-microvolt = <1000000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-always-on;
> + qcom,boot-load = <50000>;
> + };
> +
> pm8921_l23: pm8921-l23 {
> compatible = "qcom,rpm-pm8921-pldo";
> reg = <QCOM_RPM_PM8921_LDO23>;
> @@ -296,6 +306,25 @@
>
> };
>
> + usb1_phy:phy@12500000 {
> + compatible = "qcom,usb-otg-ci";
> + reg = <0x12500000 0x400>;
> + interrupts = <0 100 0>;
The trailing 0 might be IRQ_TYPE_NONE?
> + status = "disabled";
Usually the status property goes first.
> + dr_mode = "host";
> +
> + clocks = <&gcc USB_HS1_XCVR_CLK>,
> + <&gcc USB_HS1_H_CLK>;
> + clock-names = "core", "iface";
> +
> + vddcx-supply = <&pm8921_s3>;
> + v3p3-supply = <&pm8921_l3>;
> + v1p8-supply = <&pm8921_l4>;
> +
> + resets = <&gcc USB_HS1_RESET>;
> + reset-names = "link";
> + };
> +
> usb3_phy:phy@12520000 {
> compatible = "qcom,usb-otg-ci";
> reg = <0x12520000 0x400>;
> @@ -334,6 +363,23 @@
> reset-names = "link";
> };
>
> + gadget1:gadget@12500000 {
> + compatible = "qcom,ci-hdrc";
> + reg = <0x12500000 0x400>;
> + status = "disabled";
> + dr_mode = "peripheral";
> + interrupts = <0 100 0>;
> + usb-phy = <&usb1_phy>;
> + };
> +
> + usb1: usb@12500000 {
> + compatible = "qcom,ehci-host";
> + reg = <0x12500000 0x400>;
> + interrupts = <0 100 0>;
> + status = "disabled";
> + usb-phy = <&usb1_phy>;
> + };
> +
> usb3: usb@12520000 {
> compatible = "qcom,ehci-host";
> reg = <0x12520000 0x400>;
>
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