linux-kernel - Re: [PATCH 1/9] ARM: at91/dt: add rm9200 spi0 chip select pins definitions

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Date:	Wed, 20 Nov 2013 15:56:09 +0100
From:	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
To:	Boris BREZILLON <b.brezillon@...rkiz.com>
Cc:	Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ian.campbell@...rix.com>,
	Russell King <linux@....linux.org.uk>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Joachim Eastwood <manabian@...il.com>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/9] ARM: at91/dt: add rm9200 spi0 chip select pins
 definitions

On 13:02 Wed 28 Aug     , Boris BREZILLON wrote:
> Add spi0 cs pinctrl pins definitions.
> 
> Signed-off-by: Boris BREZILLON <b.brezillon@...rkiz.com>
> ---
>  arch/arm/boot/dts/at91rm9200.dtsi |   20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/at91rm9200.dtsi b/arch/arm/boot/dts/at91rm9200.dtsi
> index f770655..69b76c7 100644
> --- a/arch/arm/boot/dts/at91rm9200.dtsi
> +++ b/arch/arm/boot/dts/at91rm9200.dtsi
> @@ -486,6 +486,26 @@
>  							 AT91_PIOA 1 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA1 periph A SPI0_MOSI pin */
>  							 AT91_PIOA 2 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PA2 periph A SPI0_SPCK pin */
>  					};
> +
> +					pinctrl_spi0_cs0: spi0_cs0-0 {
> +						atmel,pins =
> +							<AT91_PIOA 3 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PA3 periph A SPI0_NPCS0 pin */
> +					};
> +
> +					pinctrl_spi0_cs1: spi0_cs1-0 {
> +						atmel,pins =
> +							<AT91_PIOA 4 AT91_PERIPH_GPIO AT91_PINCTRL_MULTI_DRIVE>;	/* PA4 GPIO SPI0_NPCS1 pin */
> +					};
> +
> +					pinctrl_spi0_cs2: spi0_cs2-0 {
> +						atmel,pins =
> +							<AT91_PIOA 5 AT91_PERIPH_GPIO AT91_PINCTRL_MULTI_DRIVE>;	/* PA5 GPIO SPI0_NPCS2 pin */
> +					};
> +
> +					pinctrl_spi0_cs3: spi0_cs3-0 {
> +						atmel,pins =
> +							<AT91_PIOA 6 AT91_PERIPH_GPIO AT91_PINCTRL_MULTI_DRIVE>;	/* PA6 GPIO SPI0_NPCS3 pin */
> +					};
nack the pin are not multidrive there is only one master

Best Regards,
J.
>  				};
>  
>  				pioA: gpio@...ff400 {
> -- 
> 1.7.9.5
> 
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