Re: [PATCH] ARM: mmp/mmp2: fix cpu_is_mmp2() on mmp2-dt

From: Arnd Bergmann
Date: Sun Dec 02 2018 - 10:53:38 EST


On Sun, Dec 2, 2018 at 12:12 PM Lubomir Rintel <lkundrak@xxxxx> wrote:
>
> cpu_is_mmp2() was equivalent to cpu_is_pj4(), wouldn't be correct for
> multiplatform kernels. Fix it by also considering mmp_chip_id, as is
> done for cpu_is_pxa168() and cpu_is_pxa910() above.
>
> Moreover, it is only available with CONFIG_CPU_MMP2 and thus doesn't work
> on DT-based MMP2 machines. Enable it on CONFIG_MACH_MMP2_DT too.
>
> Note: CONFIG_CPU_MMP2 is only used for machines that use board files
> instead of DT. It should perhaps be renamed. I'm not doing it now, because
> I don't have a better idea.
>
> Signed-off-by: Lubomir Rintel <lkundrak@xxxxx>

Acked-by: Arnd Bergmann <arnd@xxxxxxxx>

I'd suggest adding

Cc: stable@xxxxxxxxxxxxxxx

since this fixes bugs on other platforms when CONFIG_MMP2 is enabled
in a multiplatform kernel.