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    Subject[PATCH 0/4] soc: renesas: Identify SoC and register with the SoC bus
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    	Hi all,

    Some Renesas SoCs may exist in different revisions, providing slightly
    different functionalities (e.g. R-Car H3 ES1.x and ES2.0). This needs to
    be catered for by drivers and/or platform code. The recently proposed
    soc_device_match() API seems like a good fit to handle this.

    This patch series implements the core infrastructure to provide SoC and
    revision information through the SoC bus for Renesas ARM SoCs. It
    consists of 4 patches:
    - Patch 1 avoids a crash when SoC revision information is needed and
    provided early,
    - Patch 2 (from Arnd) introduces the soc_device_match() API.
    I don't know if, when, and through which channel this patch is
    planned to go upstream,
    - Patch 3 fixes a bug in soc_device_match(), causing a crash when
    trying to match on an SoC attribute that is not provided (seen on
    EMEV2, RZ/A, and R-Car M1A, which lack revision information),
    - Patch 4 identifies Renesas SoCs and registers them with the SoC bus.

    Tested on (family, machine, soc_id, optional revision):

    Emma Mobile EV2, EMEV2 KZM9D Board, emev2
    RZ/A, Genmai, r7s72100
    R-Mobile, APE6EVM, r8a73a4, ES1.0
    R-Mobile, armadillo 800 eva, r8a7740, ES2.0
    R-Car Gen1, bockw, r8a7778
    R-Car Gen1, marzen, r8a7779, ES1.0
    R-Car Gen2, Lager, r8a7790, ES1.0
    R-Car Gen2, Koelsch, r8a7791, ES1.0
    R-Car Gen2, Gose, r8a7793, ES1.0
    R-Car Gen2, Alt, r8a7794, ES1.0
    R-Car Gen3, Renesas Salvator-X board based on r8a7795, r8a7795, ES1.0
    R-Car Gen3, Renesas Salvator-X board based on r8a7796, r8a7796, ES1.0
    SH-Mobile, KZM-A9-GT, sh73a0, ES2.0

    For your convenience, this series is also available in the
    topic/renesas-soc-id-v1 branch of my renesas-drivers git repository at
    git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git

    Thanks for your comments!

    Arnd Bergmann (1):
    base: soc: Introduce soc_device_match() interface

    Geert Uytterhoeven (3):
    base: soc: Early register bus when needed
    base: soc: Check for NULL SoC device attributes
    [RFC] soc: renesas: Identify SoC and register with the SoC bus

    arch/arm/mach-shmobile/Kconfig | 1 +
    arch/arm64/Kconfig.platforms | 1 +
    drivers/base/Kconfig | 1 +
    drivers/base/soc.c | 79 +++++++++++
    drivers/soc/renesas/Makefile | 2 +
    drivers/soc/renesas/renesas-soc.c | 266 ++++++++++++++++++++++++++++++++++++++
    include/linux/sys_soc.h | 3 +
    7 files changed, 353 insertions(+)
    create mode 100644 drivers/soc/renesas/renesas-soc.c

    --
    1.9.1

    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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