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Date: Tue, 16 Jan 2024 02:20:57 -0800
From: Emil Renner Berthing <emil.renner.berthing@...onical.com>
To: Nylon Chen <nylon.chen@...ive.com>, paul.walmsley@...ive.com, palmer@...belt.com,
conor+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org,
u.kleine-koenig@...gutronix.de, thierry.reding@...il.com,
aou@...s.berkeley.edu
Cc: zong.li@...ve.com, vincent.chen@...ive.com, linux-pwm@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
devicetree@...r.kernel.org, nylon7717@...il.com,
Conor Dooley <conor.dooley@...rochip.com>
Subject: Re: [v6 1/3] riscv: dts: sifive: unleashed/unmatched: Remove PWM
controlled LED's active-low properties
Nylon Chen wrote:
> This removes the active-low properties of the PWM-controlled LEDs in
> the HiFive Unmatched device tree.
>
> The reference is hifive-unleashed-a00.pdf[0] and hifive-unmatched-schematics-v3.pdf[1].
>
> Link: https://sifive.cdn.prismic.io/sifive/c52a8e32-05ce-4aaf-95c8-7bf8453f8698_hifive-unleashed-a00-schematics-1.pdf [0]
> Link: https://sifive.cdn.prismic.io/sifive/6a06d6c0-6e66-49b5-8e9e-e68ce76f4192_hifive-unmatched-schematics-v3.pdf [1]
>
> Acked-by: Conor Dooley <conor.dooley@...rochip.com>
> Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
> Co-developed-by: Zong Li <zong.li@...ve.com>
> Signed-off-by: Zong Li <zong.li@...ve.com>
> Co-developed-by: Vincent Chen <vincent.chen@...ive.com>
> Signed-off-by: Vincent Chen <vincent.chen@...ive.com>
> Signed-off-by: Nylon Chen <nylon.chen@...ive.com>
> ---
> arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts | 8 ++++----
> arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts | 12 ++++--------
> 2 files changed, 8 insertions(+), 12 deletions(-)
>
> diff --git a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
> index 900a50526d77..11e7ac1c54bb 100644
> --- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
> +++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
> @@ -49,7 +49,7 @@ led-controller {
> compatible = "pwm-leds";
>
> led-d1 {
> - pwms = <&pwm0 0 7812500 PWM_POLARITY_INVERTED>;
> + pwms = <&pwm0 0 7812500 0>;
> active-low;
> color = <LED_COLOR_ID_GREEN>;
> max-brightness = <255>;
> @@ -57,7 +57,7 @@ led-d1 {
> };
>
> led-d2 {
> - pwms = <&pwm0 1 7812500 PWM_POLARITY_INVERTED>;
> + pwms = <&pwm0 1 7812500 0>;
> active-low;
> color = <LED_COLOR_ID_GREEN>;
> max-brightness = <255>;
> @@ -65,7 +65,7 @@ led-d2 {
> };
>
> led-d3 {
> - pwms = <&pwm0 2 7812500 PWM_POLARITY_INVERTED>;
> + pwms = <&pwm0 2 7812500 0>;
> active-low;
> color = <LED_COLOR_ID_GREEN>;
> max-brightness = <255>;
> @@ -73,7 +73,7 @@ led-d3 {
> };
>
> led-d4 {
> - pwms = <&pwm0 3 7812500 PWM_POLARITY_INVERTED>;
> + pwms = <&pwm0 3 7812500 0>;
> active-low;
> color = <LED_COLOR_ID_GREEN>;
> max-brightness = <255>;
> diff --git a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
> index 07387f9c135c..b328ee80693f 100644
> --- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
> +++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
> @@ -51,8 +51,7 @@ led-controller-1 {
> compatible = "pwm-leds";
>
> led-d12 {
> - pwms = <&pwm0 0 7812500 PWM_POLARITY_INVERTED>;
> - active-low;
> + pwms = <&pwm0 0 7812500 0>;
Here you remove the active-low property, but you don't above. I'm not sure
what's the right thing to do, but I would have expected the same change in both
places.
/Emil
> color = <LED_COLOR_ID_GREEN>;
> max-brightness = <255>;
> label = "d12";
> @@ -68,20 +67,17 @@ multi-led {
> label = "d2";
>
> led-red {
> - pwms = <&pwm0 2 7812500 PWM_POLARITY_INVERTED>;
> - active-low;
> + pwms = <&pwm0 2 7812500 0>;
> color = <LED_COLOR_ID_RED>;
> };
>
> led-green {
> - pwms = <&pwm0 1 7812500 PWM_POLARITY_INVERTED>;
> - active-low;
> + pwms = <&pwm0 1 7812500 0>;
> color = <LED_COLOR_ID_GREEN>;
> };
>
> led-blue {
> - pwms = <&pwm0 3 7812500 PWM_POLARITY_INVERTED>;
> - active-low;
> + pwms = <&pwm0 3 7812500 0>;
> color = <LED_COLOR_ID_BLUE>;
> };
> };
> --
> 2.42.0
>
>
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv
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