diff options
| author | Nicolas Boichat <drinkcat@google.com> | 2017-06-12 08:31:56 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2017-06-11 23:17:19 -0700 |
| commit | 3a8bba3bc3bfa5e52a368c89dd84cc25bea7fb16 (patch) | |
| tree | 49569d18741887977fb042d94c375baa291347c5 /board/eve | |
| parent | cabd486cb297cf647458186751facae61137bbc1 (diff) | |
| download | chrome-ec-3a8bba3bc3bfa5e52a368c89dd84cc25bea7fb16.tar.gz | |
gpio: Move gpio_get_ternary to common gpio functions
Also, convert from usleep to udelay, as the calling site may not
necessarily be in task context.
BRANCH=none
BUG=b:62242438
TEST=make buildall -j
Change-Id: I9f36f0de4259716a92183b28324c90d974a96239
Reviewed-on: https://chromium-review.googlesource.com/530884
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Diffstat (limited to 'board/eve')
| -rw-r--r-- | board/eve/board.c | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/board/eve/board.c b/board/eve/board.c index 85f82b6932..6ebabead9c 100644 --- a/board/eve/board.c +++ b/board/eve/board.c @@ -685,28 +685,6 @@ void board_hibernate(void) ; } -static int gpio_get_ternary(enum gpio_signal gpio) -{ - int pd, pu; - int flags = gpio_get_default_flags(gpio); - - /* Read GPIO with internal pull-down */ - gpio_set_flags(gpio, GPIO_INPUT | GPIO_PULL_DOWN); - pd = gpio_get_level(gpio); - usleep(100); - - /* Read GPIO with internal pull-up */ - gpio_set_flags(gpio, GPIO_INPUT | GPIO_PULL_UP); - pu = gpio_get_level(gpio); - usleep(100); - - /* Reset GPIO flags */ - gpio_set_flags(gpio, flags); - - /* Check PU and PD readings to determine tristate */ - return pu && !pd ? 2 : pd; -} - int board_get_version(void) { static int ver; |