regulator: da9055: Pass descriptor instead of GPIO number

When setting up a fixed regulator on the DA9055, pass a descriptor
instead of a global GPIO number. This facility is not used in the
kernel so we can easily just say that this should be a descriptor
if/when put to use.

Signed-off-by: Linus Walleij <[e-mail]>
Acked-by: Lee Jones <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

drivers/regulator/da9055-regulator.c

···
 #include <linux/init.h>
 #include <linux/err.h>
 #include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/machine.h>
···
 		char name[18];
 		int gpio_mux = pdata->gpio_ren[id];
 
-		config->ena_gpio = pdata->ena_gpio[id];
-		config->ena_gpio_flags = GPIOF_OUT_INIT_HIGH;
+		config->ena_gpiod = pdata->ena_gpiods[id];
 		config->ena_gpio_invert = 1;
 
 		/*

include/linux/mfd/da9055/pdata.h

···
 #define DA9055_MAX_REGULATORS	8
 
 struct da9055;
+struct gpio_desc;
 
 enum gpio_select {
 	NO_GPIO = 0,
···
 	 * controls the regulator set A/B, 0 if  not available.
 	 */
 	enum gpio_select *reg_rsel;
-	/* GPIOs to enable regulator, 0 if not available */
-	int *ena_gpio;
+	/* GPIO descriptors to enable regulator, NULL if not available */
+	struct gpio_desc **ena_gpiods;
 };
 #endif /* __DA9055_PDATA_H */