Re: [PATCH v1 13/19] arm: dts: mt7623: move node mt6323 leds to mt6323.dtsi

From: Rob Herring
Date: Fri Mar 02 2018 - 10:41:00 EST


On Fri, Feb 23, 2018 at 06:16:33PM +0800, sean.wang@xxxxxxxxxxxx wrote:
> From: Sean Wang <sean.wang@xxxxxxxxxxxx>
>
> Since those LEDs are parts of PMIC MT6323, it is reasonable to merge
> those LEDs node definition back into mt6323.dtsi. This way can improve
> the reusability of those nodes among different boards with the same PMIC.
>
> Signed-off-by: Sean Wang <sean.wang@xxxxxxxxxxxx>
> Cc: Lee Jones <lee.jones@xxxxxxxxxx>
> ---
> arch/arm/boot/dts/mt6323.dtsi | 26 ++++++++++++++++++++++++-
> arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts | 28 ---------------------------
> 2 files changed, 25 insertions(+), 29 deletions(-)
>
> diff --git a/arch/arm/boot/dts/mt6323.dtsi b/arch/arm/boot/dts/mt6323.dtsi
> index 7c783d6..44c5642 100644
> --- a/arch/arm/boot/dts/mt6323.dtsi
> +++ b/arch/arm/boot/dts/mt6323.dtsi
> @@ -1,5 +1,5 @@
> /*
> - * Copyright (c) 2017 MediaTek Inc.
> + * Copyright (c) 2017-2018 MediaTek Inc.
> * Author: John Crispin <john@xxxxxxxxxxx>
> * Sean Wang <sean.wang@xxxxxxxxxxxx>
> * This program is free software; you can redistribute it and/or modify
> @@ -237,5 +237,29 @@
> regulator-enable-ramp-delay = <216>;
> };
> };
> +
> + leds {
> + compatible = "mediatek,mt6323-led";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + led@0 {
> + reg = <0>;
> + label = "mt6323:isink:green";

Changing the label potentially breaks userspace. And the fact that it is
a green LED is very much board specific. So I think the old location was
correct. You could put the parent node here and leave these child nodes
in the board specific dts file.


> + default-state = "off";
> + };
> +
> + led@1 {
> + reg = <1>;
> + label = "mt6323:isink:red";
> + default-state = "off";
> + };
> +
> + led@2 {
> + reg = <2>;
> + label = "mt6323:isink:blue";
> + default-state = "off";
> + };
> + };
> };
> };
> diff --git a/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
> index 75e61c4..767b225 100644
> --- a/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
> +++ b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
> @@ -483,34 +483,6 @@
> status = "okay";
> };
>
> -&pwrap {
> - mt6323 {
> - mt6323led: led {
> - compatible = "mediatek,mt6323-led";
> - #address-cells = <1>;
> - #size-cells = <0>;
> -
> - led@0 {
> - reg = <0>;
> - label = "bpi-r2:isink:green";
> - default-state = "off";
> - };
> -
> - led@1 {
> - reg = <1>;
> - label = "bpi-r2:isink:red";
> - default-state = "off";
> - };
> -
> - led@2 {
> - reg = <2>;
> - label = "bpi-r2:isink:blue";
> - default-state = "off";
> - };
> - };
> - };
> -};
> -
> &spi0 {
> pinctrl-names = "default";
> pinctrl-0 = <&spi0_pins_a>;
> --
> 2.7.4
>