diff options
| author | Chew, Kean Ho <kean.ho.chew@intel.com> | 2014-03-06 21:59:49 +0800 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2014-03-11 11:22:54 +0100 |
| commit | 42bd00706ce95d74ad6ebcb8528ee1fbbb992f6a (patch) | |
| tree | d125223cf06776ffe8650e33c4ca31564295070f /Documentation/DocBook/procfs_example.c | |
| parent | a76cbd7eba1fa4b623fa35e2cb0ef5de1c504e2f (diff) | |
pinctrl-baytrail: add function mux checking in gpio pin request
The requested gpio pin must has the func_pin_mux field set
to GPIO function by BIOS/FW in advanced. Else, the gpio pin
request would fail. This is to ensure that we do not expose
any gpio pins which shall be used for alternate functions,
for eg: wakeup pin, I/O interfaces for LPSS, etc.
Signed-off-by: Chew, Kean Ho <kean.ho.chew@intel.com>
Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation/DocBook/procfs_example.c')
0 files changed, 0 insertions, 0 deletions