2 Commits

Author	SHA1	Message	Date
Nicolas Saenz Julienne	85af74c474	gpio: raspberrypi-exp: decrease refcount on firmware dt node ... We're getting a reference RPi's firmware node in order to be able to communicate with it's driver. We should decrease the reference count on the dt node after being done with it. Fixes: a98d90e7d5 ("gpio: raspberrypi-exp: Driver for RPi3 GPIO expander via mailbox service") Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>	2018-12-17 15:28:30 +01:00
Dave Stevenson	a98d90e7d5	gpio: raspberrypi-exp: Driver for RPi3 GPIO expander via mailbox service ... Pi3 and Compute Module 3 have a GPIO expander that the VPU communicates with. There is a mailbox service that now allows control of this expander, so add a kernel driver that can make use of it. Reviewed-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>	2018-02-22 13:49:59 +01:00