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    Subject[PATCH 3.12 099/133] i2c: mv64xxx: Document the newly introduced Armada XP A0 compatible
    Date
    3.12-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Gregory CLEMENT <gregory.clement@free-electrons.com>

    commit f8b94beb7e6a374cb0de531b72377c49857b35ca upstream.

    The first variants of Armada XP SoCs (A0 stepping) have issues related
    to the i2c controller which prevent to use the offload mechanism and
    lead to a kernel hang during boot.

    The commit introduces a new the compatible string
    marvell,mv78230-a0-i2c for the i2c controller.

    Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
    Acked-by: Arnd Bergmann <arnd@arndb.de>
    cc: devicetree@vger.kernel.org
    Fixes: 930ab3d403ae (i2c: mv64xxx: Add I2C Transaction Generator support)
    Signed-off-by: Jason Cooper <jason@lakedaemon.net>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt | 6 +++++-
    1 file changed, 5 insertions(+), 1 deletion(-)

    --- a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
    +++ b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
    @@ -5,7 +5,11 @@ Required properties :

    - reg : Offset and length of the register set for the device
    - compatible : Should be "marvell,mv64xxx-i2c" or "allwinner,sun4i-i2c"
    - or "marvell,mv78230-i2c"
    + or "marvell,mv78230-i2c" or "marvell,mv78230-a0-i2c"
    + Note: Only use "marvell,mv78230-a0-i2c" for a very rare,
    + initial version of the SoC which had broken offload
    + support. Linux auto-detects this and sets it
    + appropriately.
    - interrupts : The interrupt number

    Optional properties :



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