17 Jan, 2018
1 commit
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commit aa1f10e85b0ab53dee85d8e293c8159d18d293a8 upstream.
class_find_device already does a get_device on the returned device.
So the device returned by of_find_mux_chip_by_node is already referenced
and we should not reference it again (and unref it on error).Signed-off-by: Hans de Goede
Signed-off-by: Peter Rosin
Signed-off-by: Greg Kroah-Hartman
29 Aug, 2017
1 commit
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Make this const as it is only stored in the type field of a device
structure, which is const.
Done using Coccinelle.Signed-off-by: Bhumika Goyal
Signed-off-by: Peter Rosin
Signed-off-by: Greg Kroah-Hartman
28 Aug, 2017
2 commits
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Preserve the module names with Makefile additions.
Signed-off-by: Peter Rosin
Signed-off-by: Greg Kroah-Hartman -
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.Signed-off-by: Rob Herring
Signed-off-by: Peter Rosin
Signed-off-by: Greg Kroah-Hartman
17 Jul, 2017
2 commits
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Fixes an obvious and nasty typo.
Fixes: a3b02a9c6591 ("mux: minimal mux subsystem")
Signed-off-by: Kuppuswamy Sathyanarayanan
Signed-off-by: Peter Rosin
Signed-off-by: Greg Kroah-Hartman -
The MULTIPLEXER question in the Kconfig might be confusing and is
of dubious value. Remove it. This makes consumers responsible for
selecting MULTIPLEXER, which they already do.Signed-off-by: Peter Rosin
Reported-by: Linus Torvalds
Signed-off-by: Greg Kroah-Hartman
09 Jun, 2017
1 commit
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COMPILE_TEST makes no sense when I2C is disabled, as the driver cannot compile
in that configuration:drivers/mux/mux-adg792a.c: In function 'adg792a_write_cmd':
drivers/mux/mux-adg792a.c:34:9: error: implicit declaration of function 'i2c_smbus_write_byte_data'; did you mean 'i2c_set_clientdata'? [-Werror=implicit-function-declaration]
drivers/mux/mux-adg792a.o: In function `adg792a_driver_init':
mux-adg792a.c:(.init.text+0x14): undefined reference to `i2c_register_driver'
drivers/mux/mux-adg792a.o: In function `adg792a_probe':
mux-adg792a.c:(.text.adg792a_probe+0x94): undefined reference to `i2c_smbus_write_byte_data'
drivers/mux/mux-adg792a.o: In function `adg792a_set':
mux-adg792a.c:(.text.adg792a_set+0x80): undefined reference to `i2c_smbus_write_byte_data'Fixes: afda08c4caa9 ("mux: adg792a: add mux controller driver for ADG792A/G")
Signed-off-by: Arnd Bergmann
Reviewed-by: Peter Rosin
Signed-off-by: Greg Kroah-Hartman
03 Jun, 2017
4 commits
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This adds a driver for mmio-based syscon multiplexers controlled by
bitfields in a syscon register range.Signed-off-by: Philipp Zabel
Signed-off-by: Peter Rosin
Signed-off-by: Greg Kroah-Hartman -
Analog Devices ADG792A/G is a triple 4:1 mux.
Reviewed-by: Jonathan Cameron
Signed-off-by: Peter Rosin
Signed-off-by: Greg Kroah-Hartman -
The driver builds a single multiplexer controller using a number
of gpio pins. For N pins, there will be 2^N possible multiplexer
states. The GPIO pins can be connected (by the hardware) to several
multiplexers, which in that case will be operated in parallel.Reviewed-by: Jonathan Cameron
Signed-off-by: Peter Rosin
Reviewed-by: Philipp Zabel
Signed-off-by: Greg Kroah-Hartman -
Add a new minimalistic subsystem that handles multiplexer controllers.
When multiplexers are used in various places in the kernel, and the
same multiplexer controller can be used for several independent things,
there should be one place to implement support for said multiplexer
controller.A single multiplexer controller can also be used to control several
parallel multiplexers, that are in turn used by different subsystems
in the kernel, leading to a need to coordinate multiplexer accesses.
The multiplexer subsystem handles this coordination.Thanks go out to Lars-Peter Clausen, Jonathan Cameron, Rob Herring,
Wolfram Sang, Paul Gortmaker, Dan Carpenter, Colin Ian King, Greg
Kroah-Hartman and last but certainly not least to Philipp Zabel for
helpful comments, reviews, patches and general encouragement!Reviewed-by: Jonathan Cameron
Signed-off-by: Peter Rosin
Reviewed-by: Philipp Zabel
Tested-by: Philipp Zabel
Signed-off-by: Greg Kroah-Hartman
