diff options
author | Linus Walleij <linus.walleij@linaro.org> | 2011-11-14 10:06:22 +0100 |
---|---|---|
committer | Linus Walleij <linus.walleij@linaro.org> | 2012-01-03 09:10:01 +0100 |
commit | 542e704f3ffee1dc4539c9e8191e4dc215220f5e (patch) | |
tree | da2f8aae8bedb6e3216b4808dc743eb94c3270e3 /fs | |
parent | 75d6642a3ee1dfe2552028997cdcc2c4207bec8f (diff) |
pinctrl: GPIO direction support for muxing
When requesting a single GPIO pin to be muxed in, some controllers
will need to poke a different value into the control register
depending on whether the pin will be used for GPIO output or GPIO
input. So create pinmux counterparts to gpio_direction_[input|output]
in the pinctrl framework.
ChangeLog v1->v2:
- This also amends the documentation to make it clear the this
function and associated machinery is *ONLY* intended as a backend
to gpiolib machinery, not for everyone and his dog to start playing
around with pins.
ChangeLog v2->v3:
- Don't pass an argument to the common request function, instead
provide pinmux_* counterparts to the gpio_direction_[input|output]
calls, simpler and anyone can understand it.
ChangeLog v3->v4:
- Fix numerous spelling mistakes and dangling text in documentation.
Add Ack and Rewewed-by.
Cc: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions