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* mux: adg792a: switch to using .probe_newPeter Rosin2018-04-231-3/+2
| | | | | | | Use the new probe style for i2c drivers. Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'char-misc-4.16-rc1' of ↵Linus Torvalds2018-02-016-16/+6
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big pull request for char/misc drivers for 4.16-rc1. There's a lot of stuff in here. Three new driver subsystems were added for various types of hardware busses: - siox - slimbus - soundwire as well as a new vboxguest subsystem for the VirtualBox hypervisor drivers. There's also big updates from the FPGA subsystem, lots of Android binder fixes, the usual handful of hyper-v updates, and lots of other smaller driver updates. All of these have been in linux-next for a long time, with no reported issues" * tag 'char-misc-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (155 commits) char: lp: use true or false for boolean values android: binder: use VM_ALLOC to get vm area android: binder: Use true and false for boolean values lkdtm: fix handle_irq_event symbol for INT_HW_IRQ_EN EISA: Delete error message for a failed memory allocation in eisa_probe() EISA: Whitespace cleanup misc: remove AVR32 dependencies virt: vbox: Add error mapping for VERR_INVALID_NAME and VERR_NO_MORE_FILES soundwire: Fix a signedness bug uio_hv_generic: fix new type mismatch warnings uio_hv_generic: fix type mismatch warnings auxdisplay: img-ascii-lcd: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE uio_hv_generic: add rescind support uio_hv_generic: check that host supports monitor page uio_hv_generic: create send and receive buffers uio: document uio_hv_generic regions doc: fix documentation about uio_hv_generic vmbus: add monitor_id and subchannel_id to sysfs per channel vmbus: fix ABI documentation uio_hv_generic: use ISR callback method ...
| * mux: add SPDX identifiers to all mux source filesPeter Rosin2018-01-096-16/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove all free-text license texts. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. No copyright headers or other non-license-description text was removed. Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | mux: core: fix double get_device()Hans de Goede2018-01-091-1/+3
|/ | | | | | | | | | | 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 <hdegoede@redhat.com> Signed-off-by: Peter Rosin <peda@axentia.se> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mux: make device_type constBhumika Goyal2017-08-291-1/+1
| | | | | | | | | | 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 <bhumirks@gmail.com> Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mux: zap mux- prefix from the source filesPeter Rosin2017-08-285-0/+5
| | | | | | | Preserve the module names with Makefile additions. Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mux: convert to using %pOF instead of full_nameRob Herring2017-08-281-6/+6
| | | | | | | | | | 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 <robh@kernel.org> Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mux: mux-core: unregister mux_class in mux_exit()Kuppuswamy Sathyanarayanan2017-07-171-1/+1
| | | | | | | | | Fixes an obvious and nasty typo. Fixes: a3b02a9c6591 ("mux: minimal mux subsystem") Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mux: remove the Kconfig question for the subsystemPeter Rosin2017-07-171-14/+5
| | | | | | | | | | 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 <peda@axentia.se> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mux: adg792a: always require I2C supportArnd Bergmann2017-06-091-1/+1
| | | | | | | | | | | | | | | | | | | 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 <arnd@arndb.de> Reviewed-by: Peter Rosin <peda@axentia.se> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mux: mmio-based syscon mux controllerPhilipp Zabel2017-06-033-0/+155
| | | | | | | | | This adds a driver for mmio-based syscon multiplexers controlled by bitfields in a syscon register range. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mux: adg792a: add mux controller driver for ADG792A/GPeter Rosin2017-06-033-0/+170
| | | | | | | | Analog Devices ADG792A/G is a triple 4:1 mux. Reviewed-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mux: gpio: add mux controller driver for gpio based multiplexersPeter Rosin2017-06-033-0/+133
| | | | | | | | | | | | 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 <jic23@kernel.org> Signed-off-by: Peter Rosin <peda@axentia.se> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mux: minimal mux subsystemPeter Rosin2017-06-033-0/+568
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 <jic23@kernel.org> Signed-off-by: Peter Rosin <peda@axentia.se> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Tested-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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