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Date:   Tue, 2 Jan 2018 15:17:22 +0000
From:   Lee Jones <>
To:     Andrey Smirnov <>
Cc:     Pavel Machek <>,
        Greg Kroah-Hartman <>,, Andy Shevchenko <>,
        Lucas Stach <>,
        Nikita Yushchenko <>,
        Guenter Roeck <>,
        Rob Herring <>,
        Mark Rutland <>,
        Johan Hovold <>,,,
        Sebastian Reichel <>,
        Philippe Ombredanne <>,
Subject: Re: [PATCH v17 0/5] ZII RAVE platform driver

On Wed, 20 Dec 2017, Andrey Smirnov wrote:

> Everyone:
> This patch series is v17 of the driver for supervisory processor found
> on RAVE series of devices from ZII. Supervisory processor is a PIC
> microcontroller connected to various electrical subsystems on RAVE
> devices whose firmware implements protocol to command/qery them.
>  * This driver dependends on crc_ccitt_false(), added by
>    2da9378d531f8cc6670c7497f20d936b706ab80b in 'linux-next', the patch
>    was pulled in by Andrew Morton and is currently avaiting users, so
>    this series might have to go in through Andrew's tree

Hmm... well that's annoying!  I just attempted to merge this set, but
early build tests fail due to a dependency already merged into -next.

../drivers/mfd/rave-sp.c:227:25: error:
    implicit declaration of function ‘crc_ccitt_false’

We need to figure out if either of the following are true:

 - Patch [0] can be dropped from Andrew's tree
   - ... and I can take it via the MFD tree instead
 - Patch [0] is on an immutable branch I can pull in to my PR

If not, it will have to wait until the next cycle.


Author: Andrey Vostrikov <>
Date:   Mon Dec 25 22:39:57 2017 +1100

    lib/crc-ccitt: add CCITT-FALSE CRC16 variant
    In support of a soon to be published MFD driver using serdev to talk to
    a supervisory processor that uses the CCITT-FALSE CRC16 variant in it's
    protocol, this patch was tested successfully on an i.MX6 ARM platform.
    Signed-off-by: Andrey Vostrikov <>
    Signed-off-by: Andrey Smirnov <>
    Tested-by: Chris Healy <>
    Signed-off-by: Andrew Morton <>
    Signed-off-by: Stephen Rothwell <>

Lee Jones
Linaro Services Technical Lead │ Open source software for ARM SoCs
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