[PATCH 30/31] ARM: shmobile: r8a7791: add USB-DMAC device nodes

[Geert Uytterhoeven]

Hi Sergei,

On Wed, Sep 30, 2015 at 10:10 PM, Sergei Shtylyov
<sergei.shtylyov at cogentembedded.com> wrote:
> On 09/30/2015 09:44 AM, Geert Uytterhoeven wrote:
>>>> From: Yoshihiro Shimoda <yoshihiro.shimoda.uh at renesas.com>
>>>>
>>>> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh at renesas.com>
>>>> Acked-by: Geert Uytterhoeven <geert+renesas at glider.be>
>>>> Signed-off-by: Simon Horman <horms+renesas at verge.net.au>
>>>> ---
>>>>    arch/arm/boot/dts/r8a7791.dtsi | 22 ++++++++++++++++++++++
>>>>    1 file changed, 22 insertions(+)
>
>>>     When the USB-DMAC driver is enabled, this causes kernel oops on at
>>> least
>>> the R8A7791 Henninger/Porter boards (haven't checked the others yet) with
>>> renesas-devel-20150928-v4.3-rc3 and even earlier tag. The oops can only
>>> be
>>> seen with the earlyprintk=serial kernel parameter, otherwise the kernel
>>> just
>>> hangs with a blank console.
>>
>> My current kernel on r8a7791/koelsch has CONFIG_RENESAS_USB_DMAC=y and
>> boots
>> fine.
>>
>> renesas-devel-20150928-v4.3-rc3 with shmobile_defconfig +
>> CONFIG_RENESAS_USB_DMAC=y also boots fine.
>
>    Indeed, I was able to boot it all the way on Henninger.
>
>> Do I need to enable/disable config options to trigger this?
>
>    It appears so. I just don't know what -- the diff between my .config and
> shmobile_defconfig is 150+ hunks. :-(

Can you please send me your .config by private email?

Thanks!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

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