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From: Conor Dooley <conor@kernel.org>
To: Nylon Chen <nylon.chen@sifive.com>
Cc: linux-pwm@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-riscv@lists.infradead.org, devicetree@vger.kernel.org,
	robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
	conor+dt@kernel.org, paul.walmsley@sifive.com,
	palmer@dabbelt.com, aou@eecs.berkeley.edu,
	thierry.reding@gmail.com, u.kleine-koenig@pengutronix.de,
	emil.renner.berthing@canonical.com, vincent.chen@sifive.com,
	greentime.hu@sifive.com, zong.li@sifive.com, nylon7717@gmail.com
Subject: Re: [v5 1/2] riscv: dts: sifive: unleashed/unmatched: Remove PWM controlled LED's active-low properties
Date: Tue, 24 Oct 2023 15:55:50 +0100	[thread overview]
Message-ID: <20231024-yin-coliseum-11f5e06fec14@spud> (raw)
In-Reply-To: <20231024101902.6689-2-nylon.chen@sifive.com>

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Hey,

On Tue, Oct 24, 2023 at 06:19:01PM +0800, 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]

> 

This blank line should be removed if there is a follow-up.

> Signed-off-by: Vincent Chen <vincent.chen@sifive.com>

What did Vincent contribute to this patch? Are you missing a
co-developed-by tag, perhaps?

> Signed-off-by: Nylon Chen <nylon.chen@sifive.com>

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>

I expect this to go via the pwm tree since this is going to "break" (in
the loosest possible sense) existing systems if merged separately.

Cheers,
Conor.

> ---
>  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>;
>  			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
> 

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  reply	other threads:[~2023-10-24 14:55 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-24 10:19 [v5 0/2] Change PWM-controlled LED pin active mode and algorithm Nylon Chen
2023-10-24 10:19 ` [v5 1/2] riscv: dts: sifive: unleashed/unmatched: Remove PWM controlled LED's active-low properties Nylon Chen
2023-10-24 14:55   ` Conor Dooley [this message]
2023-10-25  9:32     ` Nylon Chen
2023-10-25 14:14       ` Conor Dooley
2023-10-27  8:54         ` Nylon Chen
2023-12-11 20:42   ` Uwe Kleine-König
2023-10-24 10:19 ` [v5 2/2] pwm: sifive: change the PWM controlled LED algorithm Nylon Chen
2023-11-09  7:02   ` Nylon Chen
2023-11-09  8:22     ` Krzysztof Kozlowski
2023-12-06  2:35       ` Nylon Chen
2023-12-11 20:49   ` Uwe Kleine-König
2024-01-08  8:27     ` Nylon Chen
2024-01-08  9:25       ` Uwe Kleine-König

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