dt-bindings: document devicetree bindings for mux-controllers and gpio-mux

Allow specifying that a single multiplexer controller can be used to
control several parallel multiplexers, thus enabling sharing of the
multiplexer controller by different consumers.

Add a binding for a first mux controller in the form of a GPIO based mux
controller.

Acked-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 9e984645c4b0..b2cc32caabb9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8716,6 +8716,12 @@ S:	Orphan
 F:      drivers/mmc/host/mmc_spi.c
 F:      include/linux/spi/mmc_spi.h
 
+MULTIPLEXER SUBSYSTEM
+M:      Peter Rosin <peda@axentia.se>
+S:      Maintained
+F:      Documentation/devicetree/bindings/mux/
+F:      include/linux/dt-bindings/mux/
+
 MULTISOUND SOUND DRIVER
 M:      Andrew Veliath <andrewtv@usa.net>
 S:      Maintained