diff options
| author | Daniel Mack <zonque@gmail.com> | 2012-07-25 22:54:29 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-16 10:02:33 -0700 |
| commit | d2323cf77308d6aa13a3a5287310ef93c4919d1e (patch) | |
| tree | df5fa99b5a9376386ed8deb842da90277f5cef53 /include/linux/w1-gpio.h | |
| parent | 5f3d1382e3ca39a54032784414f0ad4e7078b37e (diff) | |
| download | lwn-d2323cf77308d6aa13a3a5287310ef93c4919d1e.tar.gz lwn-d2323cf77308d6aa13a3a5287310ef93c4919d1e.zip | |
onewire: w1-gpio: add ext_pullup_enable pin in platform data
In the process of porting boards to devicetree implemenation, we should
keep information about external circuitry where they belong - the
individual drivers.
This patch adds a way to specify a GPIO to drive the (optional) external
pull-up logic, rather than using a function pointer for that.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Acked-by: Ville Syrjälä <syrjala@sci.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/w1-gpio.h')
| -rw-r--r-- | include/linux/w1-gpio.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/w1-gpio.h b/include/linux/w1-gpio.h index 3adeff82212f..065e3ae79ab0 100644 --- a/include/linux/w1-gpio.h +++ b/include/linux/w1-gpio.h @@ -19,6 +19,7 @@ struct w1_gpio_platform_data { unsigned int pin; unsigned int is_open_drain:1; void (*enable_external_pullup)(int enable); + unsigned int ext_pullup_enable_pin; }; #endif /* _LINUX_W1_GPIO_H */ |