Hi Simon,
On Wed, Nov 16, 2016 at 2:47 PM, Simon Horman <horms@xxxxxxxxxxxx> wrote:
> On Wed, Nov 16, 2016 at 11:35:22AM +0100, Geert Uytterhoeven wrote:
>> On Tue, Nov 15, 2016 at 6:44 PM, Simon Horman <horms@xxxxxxxxxxxx> wrote:
>> >> i2c4 shares pins with vin0. Hence enabling the former breaks the latter:
>> >>
>> >> sh-pfc e6060000.pfc: pin GP_4_13 already requested by
>> >> e6520000.i2c; cannot claim for e6ef0000.video
>> >> sh-pfc e6060000.pfc: pin-141 (e6ef0000.video) status -22
>> >> sh-pfc e6060000.pfc: could not request pin 141 (GP_4_13) from
>> >> group vin0_data24 on device sh-pfc
>> >> rcar-vin e6ef0000.video: Error applying setting, reverse things back
>> >> rcar-vin: probe of e6ef0000.video failed with error -22
>> >>
>> >> There may be similar issues on other boards. Haven't checked yet.
>> >
>> > Thanks, I will drop this patch for now.
>> >
>> > I checked the boot logs of other boards with similar patches and didn't see
>> > anything there.
>>
>> Do you have CONFIG_VIDEO_ADV7604=y?
>
> No, mainly because its not in shmobile_defconfig.
>
> I tried again with that option enabled and still didn't see
> anything of interest in kernel log.
>
>> I expect the issue to be present on gose, too. So far I didn't see it
>> there, yet.
>> But the vin DTS of gose is different from koelsch, causing vin0 not to be
>> initialized?
>
> It seems so.
I managed to reproduce the issue on gose, by adding r8a7793 support to
my koelsch .config.
Apparently I was missing CONFIG_I2C_DEMUX_PINCTRL=y.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
