gpio: move pincontrol calls to <linux/gpio/driver.h>

These functions do not belong in <asm-generic/gpio.h> since the
split into separate GPIO headers under <linux/gpio/*>. Move them
to <linux/gpio/driver.h> as is apropriate.

Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 48 insertions, 0 deletions

diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index c497c62889d1..f1b36593ec9f 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -6,6 +6,7 @@
 #include <linux/irq.h>
 #include <linux/irqchip/chained_irq.h>
 #include <linux/irqdomain.h>
+#include <linux/pinctrl/pinctrl.h>
 
 struct device;
 struct gpio_desc;
@@ -173,6 +174,53 @@ int gpiochip_irqchip_add(struct gpio_chip *gpiochip,
 
 #endif /* CONFIG_GPIOLIB_IRQCHIP */
 
+#ifdef CONFIG_PINCTRL
+
+/**
+ * struct gpio_pin_range - pin range controlled by a gpio chip
+ * @head: list for maintaining set of pin ranges, used internally
+ * @pctldev: pinctrl device which handles corresponding pins
+ * @range: actual range of pins controlled by a gpio controller
+ */
+
+struct gpio_pin_range {
+        struct list_head node;
+        struct pinctrl_dev *pctldev;
+        struct pinctrl_gpio_range range;
+};
+
+int gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
+                           unsigned int gpio_offset, unsigned int pin_offset,
+                           unsigned int npins);
+int gpiochip_add_pingroup_range(struct gpio_chip *chip,
+                        struct pinctrl_dev *pctldev,
+                        unsigned int gpio_offset, const char *pin_group);
+void gpiochip_remove_pin_ranges(struct gpio_chip *chip);
+
+#else
+
+static inline int
+gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
+                       unsigned int gpio_offset, unsigned int pin_offset,
+                       unsigned int npins)
+{
+        return 0;
+}
+static inline int
+gpiochip_add_pingroup_range(struct gpio_chip *chip,
+                        struct pinctrl_dev *pctldev,
+                        unsigned int gpio_offset, const char *pin_group)
+{
+        return 0;
+}
+
+static inline void
+gpiochip_remove_pin_ranges(struct gpio_chip *chip)
+{
+}
+
+#endif /* CONFIG_PINCTRL */
+
 struct gpio_desc *gpiochip_request_own_desc(struct gpio_chip *chip, u16 hwnum,
                                             const char *label);
 void gpiochip_free_own_desc(struct gpio_desc *desc);