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>

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>
Christoph Muellner · Philipp Tomsich · Eric Lee · Eric Lee · Eric Lee · Eric Lee
1 parent 4de2bbb39e
Showing 2 changed files with 34 additions and 0 deletions Side-by-side Diff
drivers/pinctrl/pinctrl-uclass.c
include/dm/pinctrl.h
@@ -27,6 +27,28 @@
 	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
@@ -355,6 +355,18 @@
 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
...	...	@@ -27,6 +27,28 @@
27	27	return flags;
28	28	}
29	29
	30	+/*
	31	+ * TODO: this function is temporary for v2019.01.
	32	+ * It should be renamed to pinctrl_decode_pin_config(),
	33	+ * the original pinctrl_decode_pin_config() function should
	34	+ * be removed and all callers of the original function should
	35	+ * be migrated to use the new one.
	36	+ */
	37	+int pinctrl_decode_pin_config_dm(struct udevice *dev)
	38	+{
	39	+ int pinconfig = 0;
	40	+
	41	+ if (dev->uclass->uc_drv->id != UCLASS_PINCONFIG)
	42	+ return -EINVAL;
	43	+
	44	+ if (dev_read_bool(dev, "bias-pull-up"))
	45	+ pinconfig \|= 1 << PIN_CONFIG_BIAS_PULL_UP;
	46	+ else if (dev_read_bool(dev, "bias-pull-down"))
	47	+ pinconfig \|= 1 << PIN_CONFIG_BIAS_PULL_DOWN;
	48	+
	49	+ return pinconfig;
	50	+}
	51	+
30	52	#if CONFIG_IS_ENABLED(PINCTRL_FULL)
31	53	/**
32	54	* pinctrl_config_one() - apply pinctrl settings for a single node
...	...	@@ -355,6 +355,18 @@
355	355	int pinctrl_decode_pin_config(const void *blob, int node);
356	356
357	357	/**
	358	+ * pinctrl_decode_pin_config_dm() - decode pin configuration flags
	359	+ *
	360	+ * This decodes some of the PIN_CONFIG values into flags, with each value
	361	+ * being (1 << pin_cfg). This does not support things with values like the
	362	+ * slew rate.
	363	+ *
	364	+ * @pinconfig: Pinconfig udevice
	365	+ * @return decoded flag value, or -ve on error
	366	+ */
	367	+int pinctrl_decode_pin_config_dm(struct udevice *dev);
	368	+
	369	+/**
358	370	* pinctrl_get_gpio_mux() - get the mux value for a particular GPIO
359	371	*
360	372	* This allows the raw mux value for a GPIO to be obtained. It is