From: Viresh Kumar <viresh.kumar-qxv4g6HH51o@public.gmane.org>
To: w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org
Cc: khali-PUYAD+kWke1g9hUCZPvPmw@public.gmane.org,
ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org,
linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
baruch-NswTu9S1W3P6gbPvEgmw2w@public.gmane.org,
ldewangan-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org,
omaplinuxkernel-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
ml.lawnick-Mmb7MZpHnFY@public.gmane.org,
spear-devel-nkJGhpqTU55BDgjK7y7TUQ@public.gmane.org,
viresh.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
Viresh Kumar <viresh.kumar-qxv4g6HH51o@public.gmane.org>
Subject: [PATCH V4 0/2] I2C: Add bus recovery infrastructure
Date: Fri, 4 May 2012 15:10:58 +0530 [thread overview]
Message-ID: <cover.1336124143.git.viresh.kumar@st.com> (raw)
Hi Wolfram,
This patchset adds i2c bus recovery infrastructure to i2c adapters as specified
in the i2c protocol Rev. 03 section 3.16 titled "Bus clear".
http://www.nxp.com/documents/user_manual/UM10204.pdf
This patch was earlier part of a separate thread:
http://www.spinics.net/lists/linux-i2c/msg07267.html
V3->V4:
- created single i2c_recover_bus() routine instead of two.
- do bus recovery from i2c core files, instead of individual controller drivers.
- created separate struct for gpio configurations
- Documentation updated for bus recovery
- Renamed few variables to give clear names to them
- few prints changed to dev_dbg
V2->V3:
- gpio flags are now passed from controller drivers
- added support for sda line polling
- Aligned i2c-designware driver with generic recovery support
Viresh Kumar (2):
i2c/adapter: Add bus recovery infrastructure
i2c/designware: Provide i2c bus recovery support
Documentation/i2c/bus-recovery | 87 +++++++++++++++
drivers/i2c/busses/i2c-designware-core.c | 1 -
drivers/i2c/busses/i2c-designware-platdrv.c | 31 +++++
drivers/i2c/i2c-core.c | 160 +++++++++++++++++++++++++++
drivers/i2c/i2c-mux.c | 9 ++-
include/linux/i2c.h | 58 ++++++++++
include/linux/i2c/i2c-designware.h | 49 ++++++++
7 files changed, 393 insertions(+), 2 deletions(-)
create mode 100644 Documentation/i2c/bus-recovery
create mode 100644 include/linux/i2c/i2c-designware.h
--
1.7.9
next reply other threads:[~2012-05-04 9:40 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-04 9:40 Viresh Kumar [this message]
[not found] ` <cover.1336124143.git.viresh.kumar-qxv4g6HH51o@public.gmane.org>
2012-05-04 9:40 ` [PATCH V4 1/2] i2c/adapter: Add bus recovery infrastructure Viresh Kumar
[not found] ` <3484bf49a423bd55daa6a45e68c2c31dce46eb32.1336124143.git.viresh.kumar-qxv4g6HH51o@public.gmane.org>
2012-05-15 6:58 ` Viresh Kumar
[not found] ` <4FB1FE9F.7030700-qxv4g6HH51o@public.gmane.org>
2012-06-13 9:03 ` viresh kumar
[not found] ` <CAOh2x=m1XFLpunpTPUW7ozT3cExXNHyLwF7sDy4MxyjuK2uNwQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-02 11:08 ` Shiraz Hashim
[not found] ` <20120702110818.GP1978-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2012-07-16 11:35 ` viresh kumar
2012-07-18 13:57 ` Shubhrajyoti Datta
2012-07-27 14:39 ` Shubhrajyoti Datta
2012-05-04 9:41 ` [PATCH V4 2/2] i2c/designware: Provide i2c bus recovery support Viresh Kumar
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