---

yaml --- r: 336431 b: refs/heads/master c: 9afbefb h: refs/heads/master i: 336429: f77e119 336427: 178248c 336423: e2ac502 336415: 9391910 v: v3
git-mirror · Nov 21, 2012 · 6c339dd · 6c339dd
1 parent 59e0719
commit 6c339dd
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Showing 3 changed files with 28 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8f23ca1a73a096f21e6618d8e23df613daa5e532
+refs/heads/master: 9afbefb227792a3c195085d662050dcca748f521
diff --git a/trunk/drivers/pinctrl/core.c b/trunk/drivers/pinctrl/core.c
@@ -363,6 +363,30 @@ struct pinctrl_dev *pinctrl_find_and_add_gpio_range(const char *devname,
 }
 EXPORT_SYMBOL_GPL(pinctrl_find_and_add_gpio_range);
 
+/**
+ * pinctrl_find_gpio_range_from_pin() - locate the GPIO range for a pin
+ * @pctldev: the pin controller device to look in
+ * @pin: a controller-local number to find the range for
+ */
+struct pinctrl_gpio_range *
+pinctrl_find_gpio_range_from_pin(struct pinctrl_dev *pctldev,
+				 unsigned int pin)
+{
+	struct pinctrl_gpio_range *range = NULL;
+
+	/* Loop over the ranges */
+	list_for_each_entry(range, &pctldev->gpio_ranges, node) {
+		/* Check if we're in the valid range */
+		if (pin >= range->pin_base &&
+		    pin < range->pin_base + range->npins) {
+			return range;
+		}
+	}
+
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(pinctrl_find_gpio_range_from_pin);
+
 /**
  * pinctrl_remove_gpio_range() - remove a range of GPIOs fro a pin controller
  * @pctldev: pin controller device to remove the range from

diff --git a/trunk/include/linux/pinctrl/pinctrl.h b/trunk/include/linux/pinctrl/pinctrl.h
@@ -139,6 +139,9 @@ extern void pinctrl_remove_gpio_range(struct pinctrl_dev *pctldev,
 
 extern struct pinctrl_dev *pinctrl_find_and_add_gpio_range(const char *devname,
 		struct pinctrl_gpio_range *range);
+extern struct pinctrl_gpio_range *
+pinctrl_find_gpio_range_from_pin(struct pinctrl_dev *pctldev,
+				 unsigned int pin);
 
 #ifdef CONFIG_OF
 extern struct pinctrl_dev *of_pinctrl_get(struct device_node *np);