summaryrefslogtreecommitdiffstats
path: root/drivers/pinctrl
diff options
context:
space:
mode:
authorJacopo Mondi <jacopo+renesas@jmondi.org>2017-04-05 16:07:19 +0200
committerLinus Walleij <linus.walleij@linaro.org>2017-04-11 11:01:33 +0200
commit8c58f1a7a4b6d1d723bf25fef9d842d5a11200d0 (patch)
treeb94b6f5bf4151471067a9acf264e6e4b0e6f3441 /drivers/pinctrl
parent03ffb507c8c4998fa85d3efae70cb18085457263 (diff)
downloadlinux-8c58f1a7a4b6d1d723bf25fef9d842d5a11200d0.tar.bz2
pinctrl: generic: Add bi-directional and output-enable
Add bi-directional and output-enable pin configuration properties. bi-directional allows to specify when a pin shall operate in input and output mode at the same time. This is particularly useful in platforms where input and output buffers have to be manually enabled. output-enable is just syntactic sugar to specify that a pin shall operate in output mode, ignoring the provided argument. This pairs with input-enable pin configuration option. Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/pinconf-generic.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c
index 720a19fd38d2..0d6b7f4b82af 100644
--- a/drivers/pinctrl/pinconf-generic.c
+++ b/drivers/pinctrl/pinconf-generic.c
@@ -35,6 +35,7 @@ static const struct pin_config_item conf_items[] = {
PCONFDUMP(PIN_CONFIG_BIAS_PULL_PIN_DEFAULT,
"input bias pull to pin specific state", NULL, false),
PCONFDUMP(PIN_CONFIG_BIAS_PULL_UP, "input bias pull up", NULL, false),
+ PCONFDUMP(PIN_CONFIG_BIDIRECTIONAL, "bi-directional pin operations", NULL, false),
PCONFDUMP(PIN_CONFIG_DRIVE_OPEN_DRAIN, "output drive open drain", NULL, false),
PCONFDUMP(PIN_CONFIG_DRIVE_OPEN_SOURCE, "output drive open source", NULL, false),
PCONFDUMP(PIN_CONFIG_DRIVE_PUSH_PULL, "output drive push pull", NULL, false),
@@ -160,6 +161,7 @@ static const struct pinconf_generic_params dt_params[] = {
{ "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 },
{ "bias-pull-pin-default", PIN_CONFIG_BIAS_PULL_PIN_DEFAULT, 1 },
{ "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 },
+ { "bi-directional", PIN_CONFIG_BIDIRECTIONAL, 1 },
{ "drive-open-drain", PIN_CONFIG_DRIVE_OPEN_DRAIN, 0 },
{ "drive-open-source", PIN_CONFIG_DRIVE_OPEN_SOURCE, 0 },
{ "drive-push-pull", PIN_CONFIG_DRIVE_PUSH_PULL, 0 },
@@ -172,6 +174,7 @@ static const struct pinconf_generic_params dt_params[] = {
{ "input-schmitt-enable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 1 },
{ "low-power-disable", PIN_CONFIG_LOW_POWER_MODE, 0 },
{ "low-power-enable", PIN_CONFIG_LOW_POWER_MODE, 1 },
+ { "output-enable", PIN_CONFIG_OUTPUT, 1, },
{ "output-high", PIN_CONFIG_OUTPUT, 1, },
{ "output-low", PIN_CONFIG_OUTPUT, 0, },
{ "power-source", PIN_CONFIG_POWER_SOURCE, 0 },