linux-kernel - Re: [PATCH] gpio: 74x164: add dt support for nxp's 74x594

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Date:	Fri, 18 Mar 2016 15:26:36 -0500
From:	Rob Herring <robh@...nel.org>
To:	Nicolas Saenz Julienne <nicolassaenzj@...il.com>
Cc:	linus.walleij@...aro.org, gnurou@...il.com,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-gpio@...r.kernel.org, pawel.moll@....com,
	mark.rutland@....com, ijc+devicetree@...lion.org.uk,
	galak@...eaurora.org
Subject: Re: [PATCH] gpio: 74x164: add dt support for nxp's 74x594

On Mon, Mar 14, 2016 at 11:32:10PM +0000, Nicolas Saenz Julienne wrote:
> The chip is also an 8 bit shift register which works out of the box as a GPO
> expander with this patch
> 
> Signed-off-by: Nicolas Saenz Julienne <nicolassaenzj@...il.com>
> ---
>  Documentation/devicetree/bindings/gpio/gpio-74x164.txt | 4 +++-
>  drivers/gpio/gpio-74x164.c                             | 1 +
>  2 files changed, 4 insertions(+), 1 deletion(-)

Acked-by: Rob Herring <robh@...nel.org>

> 
> diff --git a/Documentation/devicetree/bindings/gpio/gpio-74x164.txt b/Documentation/devicetree/bindings/gpio/gpio-74x164.txt
> index cc26080..ce1b223 100644
> --- a/Documentation/devicetree/bindings/gpio/gpio-74x164.txt
> +++ b/Documentation/devicetree/bindings/gpio/gpio-74x164.txt
> @@ -1,7 +1,9 @@
>  * Generic 8-bits shift register GPIO driver
>  
>  Required properties:
> -- compatible : Should be "fairchild,74hc595"
> +- compatible: Should contain one of the following:
> +    "fairchild,74hc595"
> +    "nxp,74lvc594"
>  - reg : chip select number
>  - gpio-controller : Marks the device node as a gpio controller.
>  - #gpio-cells : Should be two.  The first cell is the pin number and
> diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c
> index c81224f..ebd0d1a 100644
> --- a/drivers/gpio/gpio-74x164.c
> +++ b/drivers/gpio/gpio-74x164.c
> @@ -153,6 +153,7 @@ static int gen_74x164_remove(struct spi_device *spi)
>  
>  static const struct of_device_id gen_74x164_dt_ids[] = {
>  	{ .compatible = "fairchild,74hc595" },
> +	{ .compatible = "nxp,74lvc594" },
>  	{},
>  };
>  MODULE_DEVICE_TABLE(of, gen_74x164_dt_ids);
> -- 
> 2.5.0
> 
> --
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