Commit d00afd5e authored by Wolfram Sang's avatar Wolfram Sang
Browse files

Merge branch 'i2c-mux/for-next' of https://github.com/peda-r/i2c-mux into i2c/for-5.2 

Mainly some pca954x work, i.e. removal of unused platform data support
and added support for sysfs interface for manipulating/examining the
idle state. And then a mechanical cocci-style patch.
parents 9a51b86a d5984d2a

.mailmap

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@@ -224,3 +224,5 @@ Yakir Yang <kuankuan.y@gmail.com> <ykk@rock-chips.com> 
Yusuke Goda <goda.yusuke@renesas.com>

Gustavo Padovan <gustavo@las.ic.unicamp.br>

Gustavo Padovan <padovan@profusion.mobi>

Changbin Du <changbin.du@intel.com> <changbin.du@intel.com>

Changbin Du <changbin.du@intel.com> <changbin.du@gmail.com>

Documentation/ABI/testing/sysfs-bus-i2c-devices-pca954x

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What:		/sys/bus/i2c/.../idle_state

Date:		January 2019

KernelVersion:	5.2

Contact:	Robert Shearman <robert.shearman@att.com>

Description:

		Value that exists only for mux devices that can be

		written to control the behaviour of the multiplexer on

		idle. Possible values:

		-2 - disconnect on idle, i.e. deselect the last used

		     channel, which is useful when there is a device

		     with an address that conflicts with another

		     device on another mux on the same parent bus.

		-1 - leave the mux as-is, which is the most optimal

		     setting in terms of I2C operations and is the

		     default mode.

		0..<nchans> - set the mux to a predetermined channel,

		     which is useful if there is one channel that is

		     used almost always, and you want to reduce the

		     latency for normal operations after rare

		     transactions on other channels

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