Re: [PATCH v4 6/7] ARM: zynq: DT: Add pinctrl information

From: Andreas FÃrber
Date: Mon Jan 26 2015 - 18:57:14 EST


Am 09.01.2015 um 16:43 schrieb Soren Brinkmann:
> Add pinctrl descriptions to the zc702 and zc706 device trees.
>
> Signed-off-by: Soren Brinkmann <soren.brinkmann@xxxxxxxxxx>
> Tested-by: Andreas FÃrber <afaerber@xxxxxxx>
> ---
> Changes since v1:
> - remove 'pinctrl-' prefix for pinctrl sub-nodes
> - separate config and mux nodes
>
> Changes since RFC v2:
> - add pinconf properties to zc702 mdio node
> - remove arguments from bias-related props
>
> Changes since RFC v1:
> - separate DT changes into their own patch
> ---
> arch/arm/boot/dts/zynq-7000.dtsi | 8 +-
> arch/arm/boot/dts/zynq-zc702.dts | 181 +++++++++++++++++++++++++++++++++++++++
> arch/arm/boot/dts/zynq-zc706.dts | 152 ++++++++++++++++++++++++++++++++
> 3 files changed, 340 insertions(+), 1 deletion(-)
[...]
> diff --git a/arch/arm/boot/dts/zynq-zc702.dts b/arch/arm/boot/dts/zynq-zc702.dts
> index 280f02dd4ddc..4995412f116f 100644
> --- a/arch/arm/boot/dts/zynq-zc702.dts
> +++ b/arch/arm/boot/dts/zynq-zc702.dts
[...]
> @@ -50,15 +52,24 @@
> status = "okay";
> phy-mode = "rgmii-id";
> phy-handle = <&ethernet_phy>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_gem0_default>;
>
> ethernet_phy: ethernet-phy@7 {
> reg = <7>;
> };
> };
>
> +&gpio0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_gpio0_default>;

On linux-next the equivalent no longer works for the Parallella, with
gpio failing to probe.

If I move these two properties to the leds node (for which I am
configuring gpio 7) then I get a heartbeat as before.

Regards,
Andreas

> +};
> +
> &i2c0 {
> status = "okay";
> clock-frequency = <400000>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c0_default>;
>
> i2cswitch@74 {
> compatible = "nxp,pca9548";
> @@ -132,10 +143,180 @@
> };
> };
>
> +&pinctrl0 {
[...]
> + pinctrl_gpio0_default: gpio0-default {
> + mux {
> + function = "gpio0";
> + groups = "gpio0_7_grp", "gpio0_8_grp", "gpio0_9_grp",
> + "gpio0_10_grp", "gpio0_11_grp", "gpio0_12_grp",
> + "gpio0_13_grp", "gpio0_14_grp";
> + };
> +
> + conf {
> + groups = "gpio0_7_grp", "gpio0_8_grp", "gpio0_9_grp",
> + "gpio0_10_grp", "gpio0_11_grp", "gpio0_12_grp",
> + "gpio0_13_grp", "gpio0_14_grp";
> + slew-rate = <0>;
> + io-standard = <1>;
> + };
> +
> + conf-pull-up {
> + pins = "MIO9", "MIO10", "MIO11", "MIO12", "MIO13", "MIO14";
> + bias-pull-up;
> + };
> +
> + conf-pull-none {
> + pins = "MIO7", "MIO8";
> + bias-disable;
> + };
> + };
[...]
> +};
> +
> &sdhci0 {
> status = "okay";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_sdhci0_default>;
> };
>
> &uart1 {
> status = "okay";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_uart1_default>;
> };
[dito for zc706]

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