From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-i2c@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org,
Wolfram Sang <wsa+renesas@sang-engineering.com>,
linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-omap@vger.kernel.org, linux-soc@vger.kernel.org,
linux-tegra@vger.kernel.org
Subject: [PATCH 00/12] i2c: quirks: add zero length checks and update drivers
Date: Mon, 23 Jul 2018 22:26:04 +0200 [thread overview]
Message-ID: <20180723202617.15230-1-wsa+renesas@sang-engineering.com> (raw)
I had this idea for quite some time on my todo list but a soon to be
implemented refactoring in the i2c-rcar driver now finally made me do it. Add a
'can't do 0 length messages' quirk to the quirk infrastructure for and remove
the manual handling from the drivers. This makes the quirk much more visible.
(Quite some prominent vendors in that list) We also have a centralized place to
handle updates to the quirk detection if that is ever needed.
I have tested this with the i2c-rcar and i2c-sh_mobile driver on a Renesas
SalvatorXS board equipped with M3-N (r8a77965).
A git branch can be found here:
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/quirk-no-zero-len
Looking forward to comments, reviews, tests...
Thanks,
Wolfram
Wolfram Sang (12):
i2c: quirks: add zero length checks
i2c: designware-master: use core to detect 'no zero length' quirk
i2c: mxs: use core to detect 'no zero length' quirk
i2c: omap: use core to detect 'no zero length' quirk
i2c: pmcmsp: use core to detect 'no zero length' quirk
i2c: qup: use core to detect 'no zero length' quirk
i2c: stu300: use core to detect 'no zero length' quirk
i2c: tegra: use core to detect 'no zero length' quirk
i2c: zx2967: use core to detect 'no zero length' quirk
i2c: rcar: use core to detect 'no zero length' quirk
i2c: xlr: use core to detect 'no zero length' quirk
i2c: sh_mobile: use core to detect 'no zero length read' quirk
drivers/i2c/busses/i2c-designware-master.c | 12 +++++-------
drivers/i2c/busses/i2c-mxs.c | 8 +++++---
drivers/i2c/busses/i2c-omap.c | 8 +++++---
drivers/i2c/busses/i2c-pmcmsp.c | 17 +----------------
drivers/i2c/busses/i2c-qup.c | 14 ++++++--------
drivers/i2c/busses/i2c-rcar.c | 13 ++++++-------
drivers/i2c/busses/i2c-sh_mobile.c | 10 +++++-----
drivers/i2c/busses/i2c-stu300.c | 12 ++++++------
drivers/i2c/busses/i2c-tegra.c | 4 +---
drivers/i2c/busses/i2c-xlr.c | 11 +++++------
drivers/i2c/busses/i2c-zx2967.c | 8 +++++---
drivers/i2c/i2c-core-base.c | 6 ++++++
include/linux/i2c.h | 4 ++++
13 files changed, 60 insertions(+), 67 deletions(-)
--
2.11.0
next reply other threads:[~2018-07-23 20:27 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-23 20:26 Wolfram Sang [this message]
2018-07-23 20:26 ` [PATCH 01/12] i2c: quirks: add zero length checks Wolfram Sang
2018-07-23 20:44 ` Niklas Söderlund
2018-07-23 21:05 ` Wolfram Sang
2018-08-04 21:26 ` Wolfram Sang
2018-07-23 20:26 ` [PATCH 02/12] i2c: designware-master: use core to detect 'no zero length' quirk Wolfram Sang
2018-08-02 14:00 ` Jarkko Nikula
2018-08-04 21:26 ` Wolfram Sang
2018-07-23 20:26 ` [PATCH 03/12] i2c: mxs: " Wolfram Sang
2018-08-04 21:27 ` Wolfram Sang
2018-07-23 20:26 ` [PATCH 04/12] i2c: omap: " Wolfram Sang
2018-10-05 12:24 ` Wolfram Sang
2018-10-05 14:11 ` Grygorii Strashko
2018-10-05 14:30 ` Tony Lindgren
2018-10-05 16:07 ` Wolfram Sang
2018-07-23 20:26 ` [PATCH 05/12] i2c: pmcmsp: " Wolfram Sang
2018-08-04 21:27 ` Wolfram Sang
2018-07-23 20:26 ` [PATCH 06/12] i2c: qup: " Wolfram Sang
2018-10-05 12:24 ` Wolfram Sang
2018-10-05 14:23 ` Andy Gross
2018-10-05 16:07 ` Wolfram Sang
2018-07-23 20:26 ` [PATCH 07/12] i2c: stu300: " Wolfram Sang
2018-07-25 20:52 ` Linus Walleij
2018-08-04 21:27 ` Wolfram Sang
2018-07-23 20:26 ` [PATCH 08/12] i2c: tegra: " Wolfram Sang
2018-10-05 12:24 ` Wolfram Sang
2018-10-05 13:52 ` Jon Hunter
2018-10-05 16:08 ` Wolfram Sang
2018-07-23 20:26 ` [PATCH 09/12] i2c: zx2967: " Wolfram Sang
2018-10-05 12:24 ` Wolfram Sang
2018-10-05 13:04 ` Shawn Guo
2018-10-05 16:08 ` Wolfram Sang
2018-07-23 20:26 ` [PATCH 10/12] i2c: rcar: " Wolfram Sang
2018-07-23 20:46 ` Niklas Söderlund
2018-08-04 21:27 ` Wolfram Sang
2018-07-23 20:26 ` [PATCH 11/12] i2c: xlr: " Wolfram Sang
2018-08-04 21:27 ` Wolfram Sang
2018-07-23 20:26 ` [PATCH 12/12] i2c: sh_mobile: use core to detect 'no zero length read' quirk Wolfram Sang
2018-07-23 20:54 ` Niklas Söderlund
2018-08-04 21:27 ` Wolfram Sang
2018-07-23 20:47 ` [PATCH 00/12] i2c: quirks: add zero length checks and update drivers Andy Shevchenko
2018-08-04 21:26 ` Wolfram Sang
2018-08-04 21:23 ` Wolfram Sang
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