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authorHeiko Stübner <heiko@sntech.de>2013-06-06 18:44:25 +0400
committerLinus Walleij <linus.walleij@linaro.org>2013-06-16 13:56:51 +0400
commit7970cb770dffa23cb20a36f46602e688e075f5d9 (patch)
tree4a375606b2664a493719a636d06b1ca13dc4328e /drivers/pinctrl/pinconf-generic.c
parent78bafc66180d42f972b443b0b573a1b6ff9aa522 (diff)
downloadlinux-7970cb770dffa23cb20a36f46602e688e075f5d9.tar.xz
pinctrl: add pinconf-generic define for a pin-default pull
There exist controllers that don't support to set the pull to up or down separately but instead automatically set the pull direction based on embedded knowledge inside the controller, for example depending on the selected mux function of the pin. Therefore this patch adds another config option to use this default pull-state for a pin where it is not possible to know or decide if the pin will be pulled up or down. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinconf-generic.c')
-rw-r--r--drivers/pinctrl/pinconf-generic.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c
index ba465b3e85ef..9a6812b50a32 100644
--- a/drivers/pinctrl/pinconf-generic.c
+++ b/drivers/pinctrl/pinconf-generic.c
@@ -40,6 +40,8 @@ static struct pin_config_item conf_items[] = {
PCONFDUMP(PIN_CONFIG_BIAS_BUS_HOLD, "input bias bus hold", NULL),
PCONFDUMP(PIN_CONFIG_BIAS_PULL_UP, "input bias pull up", NULL),
PCONFDUMP(PIN_CONFIG_BIAS_PULL_DOWN, "input bias pull down", NULL),
+ PCONFDUMP(PIN_CONFIG_BIAS_PULL_PIN_DEFAULT,
+ "input bias pull to pin specific state", NULL),
PCONFDUMP(PIN_CONFIG_DRIVE_PUSH_PULL, "output drive push pull", NULL),
PCONFDUMP(PIN_CONFIG_DRIVE_OPEN_DRAIN, "output drive open drain", NULL),
PCONFDUMP(PIN_CONFIG_DRIVE_OPEN_SOURCE, "output drive open source", NULL),