diff options
| author | Christoph Muellner | 2019-01-02 15:09:18 +0100 |
|---|---|---|
| committer | Philipp Tomsich | 2019-01-02 22:38:44 +0100 |
| commit | 5ff776889212c080e3d1a33634ac904405ed6845 (patch) | |
| tree | 836c2cf8fece6fc3aed29e7c5fbbfc7a15cd676a | |
| parent | 4de2bbb39ea71d28bc422b9405f199b3abe4b8fa (diff) | |
dm: pinctrl: Add pinctrl_decode_pin_config_dm().
pinctrl_decode_pin_config_dm() is basically a feature-equivalent
implementation of pinctrl_decode_pin_config(), which operates
on struct udevice devices and uses the dev_read_*() API.
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
| -rw-r--r-- | drivers/pinctrl/pinctrl-uclass.c | 22 | ||||
| -rw-r--r-- | include/dm/pinctrl.h | 12 |
2 files changed, 34 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-uclass.c b/drivers/pinctrl/pinctrl-uclass.c index 29c910c55f3..c8b38d78f6b 100644 --- a/drivers/pinctrl/pinctrl-uclass.c +++ b/drivers/pinctrl/pinctrl-uclass.c @@ -27,6 +27,28 @@ int pinctrl_decode_pin_config(const void *blob, int node) return flags; } +/* + * TODO: this function is temporary for v2019.01. + * It should be renamed to pinctrl_decode_pin_config(), + * the original pinctrl_decode_pin_config() function should + * be removed and all callers of the original function should + * be migrated to use the new one. + */ +int pinctrl_decode_pin_config_dm(struct udevice *dev) +{ + int pinconfig = 0; + + if (dev->uclass->uc_drv->id != UCLASS_PINCONFIG) + return -EINVAL; + + if (dev_read_bool(dev, "bias-pull-up")) + pinconfig |= 1 << PIN_CONFIG_BIAS_PULL_UP; + else if (dev_read_bool(dev, "bias-pull-down")) + pinconfig |= 1 << PIN_CONFIG_BIAS_PULL_DOWN; + + return pinconfig; +} + #if CONFIG_IS_ENABLED(PINCTRL_FULL) /** * pinctrl_config_one() - apply pinctrl settings for a single node diff --git a/include/dm/pinctrl.h b/include/dm/pinctrl.h index 63a7d55b888..ff2b82e7c25 100644 --- a/include/dm/pinctrl.h +++ b/include/dm/pinctrl.h @@ -355,6 +355,18 @@ int pinctrl_get_periph_id(struct udevice *dev, struct udevice *periph); int pinctrl_decode_pin_config(const void *blob, int node); /** + * pinctrl_decode_pin_config_dm() - decode pin configuration flags + * + * This decodes some of the PIN_CONFIG values into flags, with each value + * being (1 << pin_cfg). This does not support things with values like the + * slew rate. + * + * @pinconfig: Pinconfig udevice + * @return decoded flag value, or -ve on error + */ +int pinctrl_decode_pin_config_dm(struct udevice *dev); + +/** * pinctrl_get_gpio_mux() - get the mux value for a particular GPIO * * This allows the raw mux value for a GPIO to be obtained. It is |