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Input: ad7879 - support auxiliary GPIOs via gpiolib

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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>
This commit is contained in:
Michael Hennerich
2010-01-19 00:27:58 -08:00
committed by Dmitry Torokhov
parent c332e9fcc5
commit ec51b7f538
2 changed files with 155 additions and 66 deletions
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12
include/linux/spi/ad7879.h
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@@ -28,8 +28,12 @@ struct ad7879_platform_data {
* 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;
};