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authorMika Westerberg <mika.westerberg@linux.intel.com>2014-01-08 12:40:56 +0200
committerLinus Walleij <linus.walleij@linaro.org>2014-01-08 15:07:28 +0100
commit5ccff85276addfdaad0046390bc5624f7e44e614 (patch)
tree4e1c1cdbdc77dcc647f926330c691066ad14b65d /drivers/gpio/gpiolib.h
parent664e3e5ac64c8a1999e2d94bc307e5bcd17d3646 (diff)
downloadblackbird-op-linux-5ccff85276addfdaad0046390bc5624f7e44e614.tar.gz
blackbird-op-linux-5ccff85276addfdaad0046390bc5624f7e44e614.zip
gpio / ACPI: get rid of acpi_gpio.h
Now that all users of acpi_gpio.h have been moved to use either the GPIO descriptor interface or to the internal gpiolib.h we can get rid of acpi_gpio.h entirely. Once this is done the only interface to get GPIOs to drivers enumerated from ACPI namespace is the descriptor based interface. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpiolib.h')
-rw-r--r--drivers/gpio/gpiolib.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
index 2ed23ab8298c..82be586c1f90 100644
--- a/drivers/gpio/gpiolib.h
+++ b/drivers/gpio/gpiolib.h
@@ -12,12 +12,35 @@
#ifndef GPIOLIB_H
#define GPIOLIB_H
+#include <linux/err.h>
+#include <linux/device.h>
+
+/**
+ * struct acpi_gpio_info - ACPI GPIO specific information
+ * @gpioint: if %true this GPIO is of type GpioInt otherwise type is GpioIo
+ * @active_low: in case of @gpioint, the pin is active low
+ */
+struct acpi_gpio_info {
+ bool gpioint;
+ bool active_low;
+};
+
#ifdef CONFIG_ACPI
void acpi_gpiochip_add(struct gpio_chip *chip);
void acpi_gpiochip_remove(struct gpio_chip *chip);
+
+struct gpio_desc *acpi_get_gpiod_by_index(struct device *dev, int index,
+ struct acpi_gpio_info *info);
#else
static inline void acpi_gpiochip_add(struct gpio_chip *chip) { }
static inline void acpi_gpiochip_remove(struct gpio_chip *chip) { }
+
+static inline struct gpio_desc *
+acpi_get_gpiod_by_index(struct device *dev, int index,
+ struct acpi_gpio_info *info)
+{
+ return ERR_PTR(-ENOSYS);
+}
#endif
#endif /* GPIOLIB_H */
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