[PATCH] ARM: shmobile: stout: enable R-Car Gen2 regulator quirk

Geert Uytterhoeven geert at linux-m68k.org
Thu Feb 15 02:08:09 PST 2018


Hi Marek,

On Thu, Feb 15, 2018 at 10:44 AM, Marek Vasut <marek.vasut at gmail.com> wrote:
> On 02/14/2018 09:09 AM, Geert Uytterhoeven wrote:
>> On Wed, Feb 14, 2018 at 6:58 AM, Wolfram Sang <wsa at the-dreams.de> wrote:
>>>> - * The r8a7790/lager and r8a7791/koelsch development boards have da9063 and
>>>> - * da9210 regulators.  Both regulators have their interrupt request lines tied
>>>> - * to the same interrupt pin (IRQ2) on the SoC.
>>>> + * The r8a7790/lager,stout and r8a7791/koelsch development boards have da9063
>>>> + * and da9210 regulators.  Both regulators have their interrupt request lines
>>>> + * tied to the same interrupt pin (IRQ2) on the SoC.
>>>
>>> I think listing the boards here doesn't scale well. Gose is already
>>> missing. How about rephrasing the paragraph to something like "Some Gen2
>>> development boards have..."?
>>
>> +1
>>
>>>>   *
>>>>   * After cold boot or da9063-induced restart, both the da9063 and da9210 seem
>>>>   * to assert their interrupt request lines.  Hence as soon as one driver
>>>> @@ -118,6 +118,7 @@ static int __init rcar_gen2_regulator_quirk(void)
>>>>
>>>>       if (!of_machine_is_compatible("renesas,koelsch") &&
>>>>           !of_machine_is_compatible("renesas,lager") &&
>>>> +         !of_machine_is_compatible("renesas,stout") &&
>>>>           !of_machine_is_compatible("renesas,gose"))
>>>>               return -ENODEV;
>>
>> Have we reached critical mass to start using array-based matching with
>> of_device_compatible_match()?
>
> We're matching on machine , not device , here . I guess our device node
> would be / ?

Correct, cfr. the implementation of of_machine_is_compatible().

BTW, several PPC platforms use of_device_compatible_match(of_root, ...),
but I believe of_root is not guaranteed to be set up.

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



More information about the linux-arm-kernel mailing list