kernel.git/drivers/i2c/muxes, branch linux-4.6.y

i2c: mux: reg: wrong condition checked for of_address_to_resource return value

2016-08-10T10:54:49Z

commit 22ebf00eb56fe77922de8138aa9af9996582c2b3 upstream. of_address_to_resource return 0 on successful call but devm_ioremap_resource is called only if it returns non-zero value Signed-off-by: Lukasz Gemborowski Reviewed-by: Alexander Sverdlin Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman

i2c: mux: demux-pinctrl: Clean up sysfs attributes

2016-04-01T11:00:07Z

sysfs attributes should use the same format for reads and writes, rather than pretty-printing on read. * Make the "cur_master" attribute read back as just the name of the master * Expose the list of all masters as a read-only "available_masters" attribute, using space separators as in similar attributes of other devices Also, spell out "cur_master" in full as "current_master". Fixes: 50a5ba876908 ("i2c: mux: demux-pinctrl: add driver") Signed-off-by: Ben Hutchings Tested-by: Wolfram Sang Signed-off-by: Wolfram Sang

i2c: mux: demux-pinctrl: add driver

2016-02-12T18:16:04Z

This driver allows an I2C bus to switch between multiple masters. This is not hot-switching because connected I2C slaves will be re-instantiated. It is meant to select the best I2C core at runtime once the task is known. Example: Prefer i2c-gpio over another I2C core because of HW errata affecting your use case. Signed-off-by: Wolfram Sang Acked-by: Rob Herring Signed-off-by: Wolfram Sang

i2c: mux: reg Change ioread endianness for readback

2015-09-03T09:58:42Z

Reading the register (if allowed) after writing is to ensure writing is completed on a posted bus. The endianness of reading doesn't matter. Signed-off-by: York Sun Signed-off-by: Wolfram Sang

i2c: mux: reg: fix compilation warnings

2015-09-03T09:56:23Z

With CONFIG_OF=n, the following warnings occur when compiling drivers/i2c/muxes/i2c-mux-reg.c: CC drivers/i2c/muxes/i2c-mux-reg.o drivers/i2c/muxes/i2c-mux-reg.c:170:13: warning: ‘struct gpiomux’ declared inside parameter list [enabled by default] struct platform_device *pdev) ^ drivers/i2c/muxes/i2c-mux-reg.c:170:13: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] drivers/i2c/muxes/i2c-mux-reg.c: In function ‘i2c_mux_reg_probe’: drivers/i2c/muxes/i2c-mux-reg.c:201:3: warning: passing argument 1 of ‘i2c_mux_reg_probe_dt’ from incompatible pointer type [enabled by default] ret = i2c_mux_reg_probe_dt(mux, pdev); ^ Signed-off-by: Mike Rapoport Signed-off-by: Wolfram Sang

i2c: mux: reg: simplify register size checking

2015-09-03T09:54:41Z

Checking was done at three different locations, just do it once and properly at probing time. Signed-off-by: Wolfram Sang Tested-by: York Sun

i2c: muxes: fix leaked i2c adapter device node references

2015-08-31T20:40:34Z

Every call of of_parse_phandle() increments user count of found device node, if OF_DYNAMIC is enabled. The change fixes all similar addressed cases in drivers/i2c. Signed-off-by: Vladimir Zapolskiy Signed-off-by: Wolfram Sang

i2c: mux: Add register-based mux i2c-mux-reg

2015-08-24T12:05:18Z

Based on i2c-mux-gpio driver, similarly the register-based mux switch from one bus to another by setting a single register. The register can be on PCIe bus, local bus, or any memory-mapped address. The endianness of such register can be specified in device tree if used, or in platform data. Signed-off-by: York Sun Acked-by: Alexander Sverdlin Signed-off-by: Wolfram Sang

i2c: arb-gpio-challenge: use of_get_i2c_adapter_by_node interface

2015-08-10T06:37:36Z

This change is needed to properly lock I2C parent bus driver. Prior to this change i2c_put_adapter() is misused, which may lead to an overflow over zero of I2C bus driver user counter. Signed-off-by: Vladimir Zapolskiy Signed-off-by: Wolfram Sang

i2c: Drop owner assignment from i2c_driver

2015-08-10T06:37:35Z

i2c_driver does not need to set an owner because i2c_register_driver() will set it. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Wolfram Sang