Signed-off-by: Bill Gatliff <b...@billgatliff.com>
---
include/linux/of_gpio.h | 23 +++++++++++++++++++++++
1 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h
index fc2472c..0c39242 100644
--- a/include/linux/of_gpio.h
+++ b/include/linux/of_gpio.h
@@ -102,4 +102,27 @@ static inline int of_get_gpio(struct device_node *np, int
index)
return of_get_gpio_flags(np, index, NULL);
}
+
+
+
+/*
+ * OF GPIO chip for I2C-based devices
+ */
+struct of_i2c_gpio_chip {
+ struct of_gpio_chip of_gc;
+};
+
+static inline struct of_i2c_gpio_chip *to_of_i2c_gpio_chip(struct gpio_chip
*gc)
+{
+ struct of_gpio_chip *of_gc = to_of_gpio_chip(gc);
+
+ return container_of(of_gc, struct of_i2c_gpio_chip, of_gc);
+}
+
+extern int of_i2c_gpiochip_add(struct device_node *np,
+ struct of_i2c_gpio_chip *gc);
+
+
+
+
#endif /* __LINUX_OF_GPIO_H */
--
1.6.5
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