Re: [PATCH V2] MXS: Add DT binding support into stmp3xxx-rtc

[Rob Herring <robherring2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

On 06/08/2012 01:56 PM, Marek Vasut wrote:
> Add simple binding for the stmp3xxx-rtc.
> 
> Signed-off-by: Marek Vasut <marex-ynQEQJNshbs@public.gmane.org>
> Cc: Alessandro Zummo <a.zummo-BfzFCNDTiLLj+vYz1yj4TQ@public.gmane.org>
> Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
> Cc: Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
> Cc: Rob Herring <rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>
> Cc: rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
> Cc: Shawn Guo <shawn.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> ---

Acked-by: Rob Herring <rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>

>  .../devicetree/bindings/rtc/stmp3xxx-rtc.txt        |   19 +++++++++++++++++++
>  arch/arm/boot/dts/imx28.dtsi                        |    1 +
>  drivers/rtc/rtc-stmp3xxx.c                          |    7 +++++++
>  3 files changed, 27 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/rtc/stmp3xxx-rtc.txt
> 
> V2: Fix typos, remove fsl,imx28-rtc
> 
> diff --git a/Documentation/devicetree/bindings/rtc/stmp3xxx-rtc.txt b/Documentation/devicetree/bindings/rtc/stmp3xxx-rtc.txt
> new file mode 100644
> index 0000000..a7a7de5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/stmp3xxx-rtc.txt
> @@ -0,0 +1,19 @@
> +* STMP3xxx/i.MX28 Time Clock controller
> +
> +Required properties:
> +- compatible: should be one of the following.
> +    * "fsl,stmp3xxx-rtc"
> +- reg: physical base address of the controller and length of memory mapped
> +  region.
> +- interrupts: Two interrupt numbers to the cpu should be specified. First
> +  interrupt number is the rtc tick interrupt and second interrupt number
> +  is the rtc alarm interrupt. The number of cells representing a interrupt
> +  depends on the parent interrupt controller.
> +
> +Example:
> +
> +	rtc@80056000 {
> +		compatible = "fsl,stmp3xxx-rtc";
> +		reg = <0x80056000 2000>;
> +		interrupts = <28 29>;
> +	};
> diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
> index cabcce8..5053019 100644
> --- a/arch/arm/boot/dts/imx28.dtsi
> +++ b/arch/arm/boot/dts/imx28.dtsi
> @@ -387,6 +387,7 @@
>  			};
>  
>  			rtc@80056000 {
> +				compatible = "fsl,imx28-rtc", "fsl,stmp3xxx-rtc";
>  				reg = <0x80056000 2000>;
>  				interrupts = <28 29>;
>  				status = "disabled";
> diff --git a/drivers/rtc/rtc-stmp3xxx.c b/drivers/rtc/rtc-stmp3xxx.c
> index 1028786..3aadb58 100644
> --- a/drivers/rtc/rtc-stmp3xxx.c
> +++ b/drivers/rtc/rtc-stmp3xxx.c
> @@ -25,6 +25,7 @@
>  #include <linux/interrupt.h>
>  #include <linux/rtc.h>
>  #include <linux/slab.h>
> +#include <linux/of_device.h>
>  
>  #include <mach/common.h>
>  
> @@ -265,6 +266,11 @@ static int stmp3xxx_rtc_resume(struct platform_device *dev)
>  #define stmp3xxx_rtc_resume	NULL
>  #endif
>  
> +static const struct of_device_id rtc_dt_ids[] = {
> +	{ .compatible = "fsl,stmp3xxx-rtc", },
> +	{ /* sentinel */ }
> +};
> +
>  static struct platform_driver stmp3xxx_rtcdrv = {
>  	.probe		= stmp3xxx_rtc_probe,
>  	.remove		= stmp3xxx_rtc_remove,
> @@ -273,6 +279,7 @@ static struct platform_driver stmp3xxx_rtcdrv = {
>  	.driver		= {
>  		.name	= "stmp3xxx-rtc",
>  		.owner	= THIS_MODULE,
> +		.of_match_table = rtc_dt_ids,
>  	},
>  };
>