[PATCH RFC 4/4] ARM: bcm2835: assign pins to sdhci pinctrl

[Eric Anholt]

Stefan Wahren <stefan.wahren at i2se.com> writes:

> Finally this patch assign all relevant pins to the sdhci pinctrl.
>
> Signed-off-by: Stefan Wahren <stefan.wahren at i2se.com>
> ---
>  arch/arm/boot/dts/bcm2835-rpi-a-plus.dts |    4 ++++
>  arch/arm/boot/dts/bcm2835-rpi-b-plus.dts |    4 ++++
>  arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts |    4 ++++
>  arch/arm/boot/dts/bcm2835-rpi-b.dts      |    4 ++++
>  4 files changed, 16 insertions(+)
>
> diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
> index 50be11d..4d562d9 100644
> --- a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
> +++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
> @@ -28,3 +28,7 @@
>  		brcm,function = <BCM2835_FSEL_ALT0>;
>  	};
>  };
> +
> +&sdhci {
> +	pinctrl-0 = <&sdhci_alt3>;
> +};

[...]

What effect does this have?  Does this change any pinmuxing at boot?  If
so, is it just resetting things from what the firmware has set to what
we expect it to be?  Does it enable card detection on the Pi B?

As far as the whole series, I really like the improved description in
patch 2, and patch 3 seems like a good idea, too.
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