linux-kernel - Re: [PATCH 1/2] ARM: at91: add PWM pinctrl to SAMA5D3

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Date:	Sat, 10 May 2014 11:10:18 +0200
From:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:	Nicolas Ferre <nicolas.ferre@...el.com>
Cc:	linux-arm-kernel@...ts.infradead.org,
	Boris BREZILLON <boris.brezillon@...e-electrons.com>,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>,
	linux-kernel@...r.kernel.org, Bo Shen <voice.shen@...el.com>
Subject: Re: [PATCH 1/2] ARM: at91: add PWM pinctrl to SAMA5D3

Hi Nicolas,

On 09/05/2014 at 15:44:27 +0200, Nicolas Ferre wrote :
> Signed-off-by: Nicolas Ferre <nicolas.ferre@...el.com>
> ---
>  arch/arm/boot/dts/sama5d3.dtsi | 82 ++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 82 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sama5d3.dtsi b/arch/arm/boot/dts/sama5d3.dtsi
> index 9caa06b3641e..ed7943745f23 100644
> --- a/arch/arm/boot/dts/sama5d3.dtsi
> +++ b/arch/arm/boot/dts/sama5d3.dtsi
> @@ -583,6 +583,88 @@
>  					};
>  				};
>  
> +				pwm0 {
> +					pinctrl_pwm0_pwmh0_0: pwm0_pwmh0-0 {
> +						atmel,pins =
> +							<AT91_PIOA 20 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PA20 periph B, conflicts with ISI_D4 and LCDDAT20 */

Didn't we decide at some point to stop adding comments for the pinctrl ?
At least, I would say that "PA20 periph B" doesn't add any useful
information.

> +					};
> +					pinctrl_pwm0_pwmh0_1: pwm0_pwmh0-1 {
> +						atmel,pins =
> +							<AT91_PIOB 0 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PB0 periph B, conflicts with GTX0 */
> +					};
> +
> +					pinctrl_pwm0_pwmh1_0: pwm0_pwmh1-0 {
> +						atmel,pins =
> +							<AT91_PIOA 22 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PA22 periph B, conflicts with ISI_D6 and LCDDAT22 */
> +					};
> +					pinctrl_pwm0_pwmh1_1: pwm0_pwmh1-1 {
> +						atmel,pins =
> +							<AT91_PIOB 4 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PB4 periph B, conflicts with GRX0 */
> +					};
> +					pinctrl_pwm0_pwmh1_2: pwm0_pwmh1-2 {
> +						atmel,pins =
> +							<AT91_PIOB 27 AT91_PERIPH_C AT91_PINCTRL_NONE>;	/* PB27 periph C, conflicts with G125CKO and RTS1 */
> +					};
> +
> +					pinctrl_pwm0_pwmh2_0: pwm0_pwmh2-0 {
> +						atmel,pins =
> +							<AT91_PIOB 8 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PB8 periph B, conflicts with GTXCK */
> +					};
> +					pinctrl_pwm0_pwmh2_1: pwm0_pwmh2-1 {
> +						atmel,pins =
> +							<AT91_PIOD 5 AT91_PERIPH_C AT91_PINCTRL_NONE>;	/* PD5 periph C, conflicts with MCI0_DA4 and TIOA0 */
> +					};
> +
> +					pinctrl_pwm0_pwmh3_0: pwm0_pwmh3-0 {
> +						atmel,pins =
> +							<AT91_PIOB 12 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PB12 periph B, conflicts with GRXDV */
> +					};
> +					pinctrl_pwm0_pwmh3_1: pwm0_pwmh3-1 {
> +						atmel,pins =
> +							<AT91_PIOD 7 AT91_PERIPH_C AT91_PINCTRL_NONE>;	/* PD7 periph C, conflicts with MCI0_DA6 and TCLK0 */
> +					};
> +
> +					pinctrl_pwm0_pwml0_0: pwm0_pwml0-0 {
> +						atmel,pins =
> +							<AT91_PIOA 21 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PA21 periph B, conflicts with ISI_D5 and LCDDAT21 */
> +					};
> +					pinctrl_pwm0_pwml0_1: pwm0_pwml0-1 {
> +						atmel,pins =
> +							<AT91_PIOB 1 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PB1 periph B, conflicts with GTX1 */
> +					};

I would group pwm0_pwmhx and pwm0_pwmlx together.

> +
> +					pinctrl_pwm0_pwml1_0: pwm0_pwml1-0 {
> +						atmel,pins =
> +							<AT91_PIOA 23 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PA23 periph B, conflicts with ISI_D7 and LCDDAT23 */
> +					};
> +					pinctrl_pwm0_pwml1_1: pwm0_pwml1-1 {
> +						atmel,pins =
> +							<AT91_PIOB 5 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PB5 periph B, conflicts with GRX1 */
> +					};
> +					pinctrl_pwm0_pwml1_2: pwm0_pwml1-2 {
> +						atmel,pins =
> +							<AT91_PIOE 31 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PE31 periph B, conflicts with IRQ */
> +					};
> +

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
--
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