Hi,
On 14/04/2016 at 08:29:47 +0200, Tomas Krcka wrote :
> Hi,
> that's correct, but idetification of this chip is rv4162c7 so
> i2c_match_id() returns NULL.
> If it's there any workaround, how the chip can be detected
> automatically then OK, but without this patch it doesn't work for me.
>
Just use rv4162 as your compatible string. That is what the mainline dtsi
is doing for the phycore som:
$ grep -C 2 rv4162 arch/arm/boot/dts/am335x-phycore-som.dtsi
i2c_rtc: rtc@68 {
compatible = "rv4162";
reg = <0x68>;
status = "disabled";
> 2016-04-14 0:49 GMT+02:00 Alexandre Belloni
> <alexandre.bell...@free-electrons.com>:
> > Hi,
> >
> > On 13/04/2016 at 22:39:39 +0200, Tomas Krcka wrote :
> >> This patch is for support of rv4162c7 RTC chip.
> >> The device has same parameters as rv4162, but with different
> >> identification.
> >> Tested with PhyTec module AM335x.
> >>
> >
> > Well, technically, it is an rv4162. rv4162-c7 is the only available one.
> > So this patch is not necessary.
> >
> >> Signed-off-by: Tomas Krcka <tomas.kr...@nkgroup.cz>
> >>
> >> ---
> >> drivers/rtc/rtc-m41t80.c | 1 +
> >> 1 file changed, 1 insertion(+)
> >>
> >> diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
> >> index d107a8e..1aa57d8 100644
> >> --- a/drivers/rtc/rtc-m41t80.c
> >> +++ b/drivers/rtc/rtc-m41t80.c
> >> @@ -81,6 +81,7 @@ static const struct i2c_device_id m41t80_id[] = {
> >> { "m41st85", M41T80_FEATURE_HT | M41T80_FEATURE_BL |
> >> M41T80_FEATURE_SQ },
> >> { "m41st87", M41T80_FEATURE_HT | M41T80_FEATURE_BL |
> >> M41T80_FEATURE_SQ },
> >> { "rv4162", M41T80_FEATURE_SQ | M41T80_FEATURE_WD |
> >> M41T80_FEATURE_SQ_ALT },
> >> + { "rv4162c7", M41T80_FEATURE_SQ | M41T80_FEATURE_WD |
> >> M41T80_FEATURE_SQ_ALT },
> >> { }
> >> };
> >> MODULE_DEVICE_TABLE(i2c, m41t80_id);
> >> -- 1.9.1
> >>
> >
> > --
> > Alexandre Belloni, Free Electrons
> > Embedded Linux, Kernel and Android engineering
> > http://free-electrons.com
--
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
