Re: [PATCH v2 02/10] ARM: dts: r8a7779: Use R-Car GPIO Gen1 fallback compat string

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Simon,

On Fri, Oct 13, 2017 at 1:05 PM, Simon Horman
<horms+renesas@xxxxxxxxxxxx> wrote:
> Use newly added R-Car GPIO Gen1 fallback compat string
> in place of now deprecated non-generation specific
> R-Car GPIO fallback compat string in DT of r8a7779 SoC.
>
> As the driver does not match on "renesas,gpio-r8a7779" there
> are some run-time considerations for this patch:
>
> * When a resulting DTB is used with kernels newer than v4.14 this should
>   not have any run-time effect as renesas,rcar-gen2-gpio is matched by the

gen1

>   driver since commit dbd1dad2ab8f ("gpio: rcar: add gen[123] fallback
>   compatibility strings")
>
> * However, when used with older kernels GPIO will be disabled as
>   no compat string match will be made by the driver.
>
> The regression documented above for the new DTB with old kernel case
> is acceptable in my opinion.
>
> Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>

Apart from that:
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>

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



[Index of Archives]     [Linux Samsung SOC]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]

  Powered by Linux