Re: [1/3] rtc/fsl: support flextimer for lx2160a

[Trent Piepho <tpiepho@impinj.com>]

On Fri, 2019-08-23 at 17:57 +0800, Biwen Li wrote:
> The patch supports flextimer for lx2160a
> 
> Signed-off-by: Biwen Li <biwen.li@nxp.com>
> ---
>  drivers/rtc/rtc-fsl-ftm-alarm.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/rtc/rtc-fsl-ftm-alarm.c b/drivers/rtc/rtc-fsl-
> ftm-alarm.c
> index 4f7259c2d6a3..2b81525f6db8 100644
> --- a/drivers/rtc/rtc-fsl-ftm-alarm.c
> +++ b/drivers/rtc/rtc-fsl-ftm-alarm.c
> @@ -313,6 +313,7 @@ static const struct of_device_id ftm_rtc_match[]
> = {
>  	{ .compatible = "fsl,ls1088a-ftm-alarm", },
>  	{ .compatible = "fsl,ls208xa-ftm-alarm", },
>  	{ .compatible = "fsl,ls1028a-ftm-alarm", },
> +	{ .compatible = "fsl,lx2160a-ftm-alarm", },
>  	{ },
>  };
>  

Since there's no data associated with each compatible, it doesn't seem
like there's any need to add a new one.

What's normally done is add two compatibles in the dts, the base
version and the specific version, e.g.:

+		rcpm: rcpm@1e34040 {
+			compatible = "fsl,lx2160a-rcpm", "fsl,qoriq-cpm-2.1+";

Or in this case, compatible = "fsl,lx2160a-ftm-alarm", "fsl,ls1088a-ftm-alarm";

Then there's no need to add to the driver list.