Re: [PATCH linux dev-5.4 v2] ARM: dts: aspeed: witherspoon: Add gpio line names

From: Joel Stanley
Date: Thu Feb 06 2020 - 01:46:19 EST


On Wed, 5 Feb 2020 at 21:55, Andrew Geissler <geissonator@xxxxxxxxx> wrote:
>
> From: Andrew Geissler <geissonator@xxxxxxxxx>
>
> Name the gpios so libgiod will work with them

Perhaps: "Name the GPIOs to help userspace work with them."

You could also mention that the names are describe the functionality
that the lines provide, and not a net or ball name.

A heads up: when you send patches upstream to the kernel mailing list,
we don't include the "linux dev-X.y" stuff in the subject.

> Signed-off-by: Andrew Geissler <geissonator@xxxxxxxxx>
> ---
> v2: added upstream to patch
> prepended fsi- on fsi related gpios
> prepended led- on led related gpios
> prepended presence on presence related gpios
> dropped pin_gpio_a1 definition
> ---
> .../boot/dts/aspeed-bmc-opp-witherspoon.dts | 36 +++++++++++++++++++
> 1 file changed, 36 insertions(+)
>
> diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
> index 515f0f208ee6..2519722928a4 100644
> --- a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
> +++ b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
> @@ -193,6 +193,42 @@
>
> };
>
> +&gpio {
> + status = "okay";

The status=okay is harmless but redundant, as this node is already enabled.

> + gpio-line-names =
> + /*A0-A7*/ "","cfam-reset","","","","","fsi-mux","",
> + /*B0-B7*/ "","","","","","air-water","","",
> + /*C0-C7*/ "","","","","","","","",
> + /*D0-D7*/ "fsi-enable","","","","","","","",
> + /*E0-E7*/ "fsi-data","","","","","","","",
> + /*F0-F7*/ "","","","","","","","",
> + /*G0-G7*/ "","","","","","","","",
> + /*H0-H7*/ "","","","","","","","",
> + /*I0-I7*/ "","","","","","","","",
> + /*J0-J7*/ "","","checkstop","","","","","",
> + /*K0-K7*/ "","","","","","","","",
> + /*L0-L7*/ "","","","","","","","",
> + /*M0-M7*/ "","","","","","","","",
> + /*N0-N7*/ "presence-ps1","","led-rear-fault","led-rear-power",
> + "led-rear-id","","","",
> + /*O0-O7*/ "","","","","","","","",
> + /*P0-P7*/ "","","","","","","","presence-ps0",
> + /*Q0-Q7*/ "","","","","","","","",
> + /*R0-R7*/ "","","fsi-trans","","","power-button","","",
> + /*S0-S7*/ "","","","","","","","",
> + /*T0-T7*/ "","","","","","","","",
> + /*U0-U7*/ "","","","","","","","",
> + /*V0-V7*/ "","","","","","","","",
> + /*W0-W7*/ "","","","","","","","",
> + /*X0-X7*/ "","","","","","","","",
> + /*Y0-Y7*/ "","","","","","","","",
> + /*Z0-Z7*/ "","","","","","","","",
> + /*AA0-AA7*/ "fsi-clock","","","","","","","",
> + /*AB0-AB7*/ "","","","","","","","",
> + /*AC0-AC7*/ "","","","","","","","";
> +

Cean up the line of whitespace here.

> +};
> +
> &fmc {
> status = "okay";
>
> --
> 2.21.0 (Apple Git-122)
>