linux-kernel - [PATCH v2 0/9] i2c: move handling of suspended adapters to the core

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Date:   Sat, 22 Dec 2018 21:26:14 +0100
From:   Wolfram Sang <wsa+renesas@...g-engineering.com>
To:     linux-i2c@...r.kernel.org
Cc:     linux-renesas-soc@...r.kernel.org, linux-pm@...r.kernel.org,
        Hans de Goede <hdegoede@...hat.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Wolfram Sang <wsa+renesas@...g-engineering.com>
Subject: [PATCH v2 0/9] i2c: move handling of suspended adapters to the core

Here is the new version without specific I2C helpers but using the
'is_suspended' flag from the PM core. I didn't like messing with the
flag directly, so I did a helper in patch 1. So far, I like the
approach. The diffstat looks nice, and i2c-rcar.c and i2c-sh_mobile.c
rejected rightfully too later transfers without further modifications.
Tested on a Renesas Lager board (R-Car H2).

I dropped a few Tested-by tags because I think this approach is too
different from V1 to keep them. I hope you guys can have a look again.
Thanks for all the testing, so far!

A branch can be found here:

git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/i2c/reject-when-suspended

If this series is acceptable, I'd suggest to take it via my i2c tree
after rc1. And then I'll provide an immutable branch for the PM tree to
pick. Let me know if this works for you.

And thanks to Renesas for funding this work!

Thanks and kind regards,

   Wolfram

Wolfram Sang (9):
  PM / core: add helper to return suspend status of a device
  i2c: reject new transfers when adapters are suspended
  i2c: synquacer: remove unused is_suspended flag
  i2c: brcmstb: don't open code to reject transfers when suspended
  i2c: zx2967: don't open code to reject transfers when suspended
  i2c: sprd: don't use pdev as variable name for struct device *
  i2c: sprd: don't open code to reject transfers when suspended
  i2c: exynos5: don't open code to reject transfers when suspended
  i2c: s3c2410: don't open code to reject transfers when suspended

 Documentation/i2c/fault-codes      |  4 ++++
 drivers/i2c/busses/i2c-brcmstb.c   | 22 +-------------------
 drivers/i2c/busses/i2c-exynos5.c   | 10 ----------
 drivers/i2c/busses/i2c-s3c2410.c   |  7 -------
 drivers/i2c/busses/i2c-sprd.c      | 32 ++++++++++--------------------
 drivers/i2c/busses/i2c-synquacer.c |  5 -----
 drivers/i2c/busses/i2c-zx2967.c    |  8 --------
 drivers/i2c/i2c-core-base.c        |  3 +++
 drivers/i2c/i2c-core-smbus.c       |  4 ++++
 include/linux/device.h             |  5 +++++
 10 files changed, 27 insertions(+), 73 deletions(-)

-- 
2.19.1