[U-Boot] [PATCH v3 4/8] dm: pinctrl: Add pinctrl_decode_pin_config_dm().
Christoph Muellner
christoph.muellner at theobroma-systems.com
Mon Dec 17 13:30:02 UTC 2018
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 at theobroma-systems.com>
---
Changes in v3: None
Changes in v2: None
drivers/pinctrl/pinctrl-uclass.c | 15 +++++++++++++++
include/dm/pinctrl.h | 12 ++++++++++++
2 files changed, 27 insertions(+)
diff --git a/drivers/pinctrl/pinctrl-uclass.c b/drivers/pinctrl/pinctrl-uclass.c
index 6db0445067..cebba12b4a 100644
--- a/drivers/pinctrl/pinctrl-uclass.c
+++ b/drivers/pinctrl/pinctrl-uclass.c
@@ -27,6 +27,21 @@ int pinctrl_decode_pin_config(const void *blob, int node)
return flags;
}
+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 63a7d55b88..ff2b82e7c2 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
--
2.11.0
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