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    SubjectRe: [PATCH v2 12/14] drivers: sh: Stop using pm_runtime.c for multi-platform shmobile with genpd
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    On Thu, May 28, 2015 at 8:53 PM, Geert Uytterhoeven
    <geert+renesas@glider.be> wrote:
    > Now most multi-platform ARM shmobile platforms (SH-Mobile, R-Mobile,
    > R-Car, RZ) use the CPG Clock Domain to take care of PM runtime
    > management of the module clocks, we no longer need the legacy default PM
    > domain hack, which also prevented registering the real PM domain.
    >
    > EMMA Mobile EV2 doesn't have MSTP clocks and doesn't use the CPG Clock
    > Domain. But all its device drivers manage clocks explicitly, without
    > relying on Runtime PM, so it doesn't need the legacy default PM hack
    > neither.
    >
    > Hence do not compile it when running an ARM multi-platform kernel with
    > genpd support.
    >
    > The default PM domain is still needed:
    > - for legacy SuperH,
    > - for legacy (non-DT) ARM/shmobile platforms
    > - without genpd support (r8a7778, r8a7779),
    > - with genpd support, for devices in the "C5" always-on power
    > area (r8a7740, sh73a0),
    > - for the CONFIG_PM=n case.
    >
    > Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
    > Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
    > ---
    > v2:
    > - Add Reviewed-by,
    > - Just stop compiling pm_runtime.c instead of using a runtime check,
    > as no multi-platform ARM platforms need this anymore.

    The runtime check must stay for the ARM multiplatform CONFIG_PM=n case,
    to prevent the code from running on non-shmobile machines. Will fix.

    Gr{oetje,eeting}s,

    Geert

    --
    Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@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


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