A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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Input: ads7846 - introduce .gpio_pendown to get pendown state

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The GPIO connected to ADS7846 nPENIRQ signal is usually used to get
the pendown state as well. Introduce a .gpio_pendown, and use this
to decide the pendown state if .get_pendown_state is NULL.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Eric Miao 2008-09-10 12:06:15 -04:00 • committed by Russell King
commit 6ae19b04ab
2 changed files with 57 additions and 14 deletions
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3
include/linux/spi/ads7846.h
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@ -43,6 +43,9 @@ struct ads7846_platform_data {
u16 debounce_tol; /* tolerance used for filtering */
u16 debounce_rep; /* additional consecutive good readings
* required after the first two */
int gpio_pendown; /* the GPIO used to decide the pendown
* state if get_pendown_state == NULL
*/
int (*get_pendown_state)(void);
int (*filter_init) (struct ads7846_platform_data *pdata,
void **filter_data);