> > 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@xxxxxxx> > > --- > > 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. Yes, it will be work. But it will be confusing. Is ls1088a same with lx2160a? No.