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| author | Jacopo Mondi <jacopo+renesas@jmondi.org> | 2017-04-05 16:07:19 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-04-11 11:01:33 +0200 |
| commit | 8c58f1a7a4b6d1d723bf25fef9d842d5a11200d0 (patch) | |
| tree | b94b6f5bf4151471067a9acf264e6e4b0e6f3441 /drivers/pinctrl | |
| parent | 03ffb507c8c4998fa85d3efae70cb18085457263 (diff) | |
| download | lwn-8c58f1a7a4b6d1d723bf25fef9d842d5a11200d0.tar.gz lwn-8c58f1a7a4b6d1d723bf25fef9d842d5a11200d0.zip | |
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.c | 3 |
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 }, |