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Message-ID: <sixgkkllo7medcjwjnmbkpqkgfvnmrtlhlwarwuxid5oqwrht5@gl65b6fetq2b>
Date: Fri, 23 Feb 2024 09:46:25 +0100
From: Ondřej Jirman <megi@....cz>
To: Aren Moynihan <aren@...cevolution.org>
Cc: linux-kernel@...r.kernel.org,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
Jean-Jacques Hiblot <jjhiblot@...phandler.com>, Chen-Yu Tsai <wens@...e.org>, linux-sunxi@...ts.linux.dev,
Lee Jones <lee@...nel.org>, Pavel Machek <pavel@....cz>,
linux-arm-kernel@...ts.infradead.org, Jernej Skrabec <jernej.skrabec@...il.com>,
linux-leds@...r.kernel.org, Conor Dooley <conor+dt@...nel.org>, Miles Alan <m@...esalan.com>,
Samuel Holland <samuel@...lland.org>
Subject: Re: [PATCH v2 3/4] arm64: dts: sun50i-a64-pinephone: add multicolor
led node
Hello Aren,
On Tue, Feb 06, 2024 at 01:13:19PM -0500, Aren Moynihan wrote:
> The red, green, and blue leds currently in the device tree represent a
> single rgb led on the front of the PinePhone.
>
> Signed-off-by: Aren Moynihan <aren@...cevolution.org>
> ---
>
> Changes in v2:
> - remove function property from individual led nodes
>
> .../boot/dts/allwinner/sun50i-a64-pinephone.dtsi | 16 ++++++++++------
> 1 file changed, 10 insertions(+), 6 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
> index ad2476ee01e4..e53e0d4579a7 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
> @@ -39,28 +39,32 @@ chosen {
> leds {
> compatible = "gpio-leds";
>
> - led-0 {
> - function = LED_FUNCTION_INDICATOR;
This looks like a needless change that will just break people's current scripts
and setup. It does mine, and there sure are others that will be surprised, too.
This leads to a change in sysfs path from:
/sys/class/leds/blue:indicator
to
/sys/class/leds/blue:
which is 1) a weird name and 2) a backwards compatibility break for seemingly
no apparent reason. Any reaons for the change?
People normally hardcode these paths in eg. /etc/tmpfiles.d to apply LED triggers
to particular LEDs.
Kind regards,
o.
> + led0: led-0 {
> color = <LED_COLOR_ID_BLUE>;
> gpios = <&pio 3 20 GPIO_ACTIVE_HIGH>; /* PD20 */
> retain-state-suspended;
> };
>
> - led-1 {
> - function = LED_FUNCTION_INDICATOR;
> + led1: led-1 {
> color = <LED_COLOR_ID_GREEN>;
> gpios = <&pio 3 18 GPIO_ACTIVE_HIGH>; /* PD18 */
> retain-state-suspended;
> };
>
> - led-2 {
> - function = LED_FUNCTION_INDICATOR;
> + led2: led-2 {
> color = <LED_COLOR_ID_RED>;
> gpios = <&pio 3 19 GPIO_ACTIVE_HIGH>; /* PD19 */
> retain-state-suspended;
> };
> };
>
> + multi-led {
> + compatible = "leds-group-multicolor";
> + color = <LED_COLOR_ID_RGB>;
> + function = LED_FUNCTION_INDICATOR;
> + leds = <&led0>, <&led1>, <&led2>;
> + };
> +
> reg_ps: ps-regulator {
> compatible = "regulator-fixed";
> regulator-name = "ps";
> --
> 2.43.0
>
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