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| author | Eric Miao <eric.y.miao@gmail.com> | 2008-09-10 12:06:15 -0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-09-17 17:33:37 +0100 |
| commit | 6ae19b04ab41a4db0f0c48ec0b78950f6b028823 (patch) | |
| tree | 9a9c38bc7be0741b19abbb345f5bd001bfc0ab97 /include/linux/spi/ads7846.h | |
| parent | adee14b2e1557d0a8559f29681732d05a89dfc35 (diff) | |
| download | lwn-6ae19b04ab41a4db0f0c48ec0b78950f6b028823.tar.gz lwn-6ae19b04ab41a4db0f0c48ec0b78950f6b028823.zip | |
Input: ads7846 - introduce .gpio_pendown to get pendown state
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>
Diffstat (limited to 'include/linux/spi/ads7846.h')
| -rw-r--r-- | include/linux/spi/ads7846.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/spi/ads7846.h b/include/linux/spi/ads7846.h index daf744017a31..05eab2f11e63 100644 --- a/include/linux/spi/ads7846.h +++ b/include/linux/spi/ads7846.h @@ -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); |