07 Nov, 2019
1 commit
-
It's hard for occasional GPIO code reader/writer to know if values 0/1
equal to IN or OUT. Use defined GPIO_LINE_DIRECTION_IN and
GPIO_LINE_DIRECTION_OUT to help them out.NOTE - for gpio-amd-fch and gpio-bd9571mwv:
This commit also changes the return value for direction get to equal 1
for direction INPUT. Prior this commit these drivers might have
returned some other positive value but 1 for INPUT.Signed-off-by: Matti Vaittinen
Acked-by: Scott Branden
Reviewed-by: Grygorii Strashko
Reviewed-by: Michal Simek
Reviewed-by: Geert Uytterhoeven
Acked-by: Andy Shevchenko
Acked-by: William Breathitt Gray
Acked-by: Kuppuswamy Sathyanarayanan
Signed-off-by: Linus Walleij
17 Dec, 2018
1 commit
-
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: a98d90e7d588 ("gpio: raspberrypi-exp: Driver for RPi3 GPIO expander via mailbox service")
Signed-off-by: Nicolas Saenz Julienne
Signed-off-by: Linus Walleij
22 Feb, 2018
1 commit
-
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
Signed-off-by: Dave Stevenson
Signed-off-by: Baruch Siach
Signed-off-by: Linus Walleij
