linux-kernel - [PATCH v2 0/2] i2c/of: Populate multiplexed i2c busses from the device tree.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1317165384-20390-1-git-send-email-david.daney@cavium.com>
Date:	Tue, 27 Sep 2011 16:16:22 -0700
From:	David Daney <david.daney@...ium.com>
To:	khali@...ux-fr.org, ben-linux@...ff.org, peter.korsgaard@...co.com,
	guenter.roeck@...csson.com, linux-i2c@...r.kernel.org,
	devicetree-discuss@...ts.ozlabs.org, grant.likely@...retlab.ca
Cc:	linux-kernel@...r.kernel.org, David Daney <david.daney@...ium.com>
Subject: [PATCH v2 0/2] i2c/of: Populate multiplexed i2c busses from the device tree.

v2: Update bindings to use "reg" insutead of "cell-index"

v1:
Unchanged from the original RFC where I said:

  We need to populate our I2C devices from the device tree, but some
  of our systems have multiplexers which currently break this process.

  The basic idea is to have the generic i2c-mux framework propagate
  the device_node for the child bus into the corresponding
  i2c_adapter, and then call of_i2c_register_devices().  This means
  that the device tree bindings for *all* i2c muxes must have some
  common properties.  I try to document these in mux.txt.

This is now tested against 3.1.0-rc6 and seems to be working well.

David Daney (2):
  i2c: Add a struct device * parameter to i2c_add_mux_adapter()
  i2c/of: Automatically populate i2c mux busses from device tree data.

 Documentation/devicetree/bindings/i2c/mux.txt |   60 +++++++++++++++++++++++++
 drivers/i2c/i2c-mux.c                         |   44 ++++++++++++++----
 drivers/i2c/muxes/gpio-i2cmux.c               |    3 +-
 drivers/i2c/muxes/pca9541.c                   |    3 +-
 drivers/i2c/muxes/pca954x.c                   |    2 +-
 include/linux/i2c-mux.h                       |    3 +-
 6 files changed, 102 insertions(+), 13 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/i2c/mux.txt

-- 
1.7.2.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/