[PATCH V2 5/6] dt: Document Tegra20/30 pinctrl binding

[Dong Aisheng]

On Wed, Mar 21, 2012 at 01:44:38AM +0800, Stephen Warren wrote:
> Define a new binding for the Tegra pin controller, which is capable of
> defining all aspects of desired pin multiplexing and pin configuration.
> This is all based on the new common pinctrl bindings.
> 
> Add Tegra30 binding based on Tegra20 binding.
> 
> Add some basic stuff that was missing before:
> * How many and what reg property entries must be provided.
> * An example.
> 
> Signed-off-by: Stephen Warren <swarren at wwwdotorg.org>
> ---
........
> +Example board file extract:
> +
> +	pinctrl at 70000000 {
> +		sdio4_default {
> +			atb {
> +				nvidia,pins = "atb", "gma", "gme";
> +				nvidia,function = "sdio4";
> +				nvidia,pull = <0>;
> +				nvidia,tristate = <0>;
> +			};
> +		};
> +	};
> +
> +	sdhci at c8000600 {
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&sdio4_default>;
A typo error? sdio4_default is not a phandle.

> +Example board file extract:
> +
> +	pinctrl at 70000000 {
> +		sdmmc4_default: pinmux {
> +			sdmmc4_clk_pcc4 {
> +				nvidia,pins =	"sdmmc4_clk_pcc4",
> +						"sdmmc4_rst_n_pcc3";
> +				nvidia,function = "sdmmc4";
> +				nvidia,pull = <0>;
> +				nvidia,tristate = <0>;
> +			};
> +			sdmmc4_dat0_paa0 {
> +				nvidia,pins =	"sdmmc4_dat0_paa0",
> +						"sdmmc4_dat1_paa1",
> +						"sdmmc4_dat2_paa2",
> +						"sdmmc4_dat3_paa3",
> +						"sdmmc4_dat4_paa4",
> +						"sdmmc4_dat5_paa5",
> +						"sdmmc4_dat6_paa6",
> +						"sdmmc4_dat7_paa7";
> +				nvidia,function = "sdmmc4";
> +				nvidia,pull = <2>;
> +				nvidia,tristate = <0>;
It seems it does not support per pin config for tegra30 and we have to
separate them in different nodes with same group config value, right?

Regards
Dong Aisheng