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From: Jan Glauber <jglauber@cavium.com>
To: Wolfram Sang <wsa-dev@sang-engineering.com>
Cc: Paul Burton <paul.burton@imgtec.com>,
	"Steven J . Hill" <Steven.Hill@cavium.com>,
	linux-i2c@vger.kernel.org, linux-mips@linux-mips.org,
	David Daney <david.daney@cavium.com>,
	Jan Glauber <jglauber@cavium.com>
Subject: [PATCH 0/4] i2c octeon & thunderx bug fixes
Date: Fri,  9 Dec 2016 10:31:54 +0100	[thread overview]
Message-ID: <20161209093158.3161-1-jglauber@cavium.com> (raw)

Hi Wolfram,

Patches #1 & #2 contain the fixes that didn't make 4.9.
We've double-checked that they are working on Octeon MIPS cn71xx,
so I hope there are no surprises this time.

Patch #3 is my original attempt on limiting the number of
retries for the i2c device register access. As I found out we
need to keep this simple, because these functions are called
very early in the i2c driver and also from all types of context.

Patch #4 addresses a bug report I got. I haven't seen this myself,
but apparently depending on probing method and/or hardware type
ipmi_ssif can fail to detect the IPMI device. Setting the class
in the adapter solves the problem and seems harmless.

Tested on MIPS Octeon CN71xx and ARM64 ThunderX on 4.9-rc8.

thanks,
Jan

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

Jan Glauber (4):
  i2c: octeon: thunderx: TWSI software reset in recovery
  i2c: octeon: thunderx: Remove double-check after interrupt
  i2c: octeon: thunderx: Limit register access retries
  i2c: octeon: thunderx: Add I2C_CLASS_HWMON

 drivers/i2c/busses/i2c-octeon-core.c     | 50 +++++---------------------------
 drivers/i2c/busses/i2c-octeon-core.h     | 21 ++++++++++----
 drivers/i2c/busses/i2c-octeon-platdrv.c  |  1 +
 drivers/i2c/busses/i2c-thunderx-pcidrv.c |  1 +
 4 files changed, 26 insertions(+), 47 deletions(-)

-- 
2.9.0.rc0.21.g7777322

             reply	other threads:[~2016-12-09  9:32 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-09  9:31 Jan Glauber [this message]
2016-12-09  9:31 ` [PATCH 1/4] i2c: octeon: thunderx: TWSI software reset in recovery Jan Glauber
2016-12-11 22:01   ` Wolfram Sang
2016-12-09  9:31 ` [PATCH 2/4] i2c: octeon: thunderx: Remove double-check after interrupt Jan Glauber
2016-12-11 22:01   ` Wolfram Sang
2016-12-09  9:31 ` [PATCH 3/4] i2c: octeon: thunderx: Limit register access retries Jan Glauber
2016-12-11 22:01   ` Wolfram Sang
2016-12-12 16:07     ` Jan Glauber
2016-12-12 16:07       ` Jan Glauber
2016-12-13 20:32       ` Wolfram Sang
2016-12-17 18:29   ` Wolfram Sang
2016-12-09  9:31 ` [PATCH 4/4] i2c: octeon: thunderx: Add I2C_CLASS_HWMON Jan Glauber
2016-12-11 22:04   ` Wolfram Sang
2017-01-25 20:49     ` Wolfram Sang
2017-01-26  6:10       ` Jan Glauber
2017-01-26  6:10         ` Jan Glauber

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