Input: ad7879 - support auxiliary GPIOs via gpiolib
Drop the simple fancy sysfs hooks for the aux GPIOs and expose these via
the gpiolib interface so that other drivers can use them.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/include/linux/spi/ad7879.h b/include/linux/spi/ad7879.h
index 4231104..6334cee 100644
--- a/include/linux/spi/ad7879.h
+++ b/include/linux/spi/ad7879.h
@@ -28,8 +28,12 @@
* 1 = 4, 2 = 8, 3 = 16 (median > averaging)
*/
u8 median;
- /* 1 = AUX/VBAT/GPIO set to GPIO Output */
- u8 gpio_output;
- /* Initial GPIO pin state (valid if gpio_output = 1) */
- u8 gpio_default;
+ /* 1 = AUX/VBAT/GPIO export GPIO to gpiolib
+ * requires CONFIG_GPIOLIB
+ */
+ bool gpio_export;
+ /* identifies the first GPIO number handled by this chip;
+ * or, if negative, requests dynamic ID allocation.
+ */
+ s32 gpio_base;
};