diff options
| author | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2014-04-15 12:27:59 +0200 |
|---|---|---|
| committer | Nicolas Ferre <nicolas.ferre@atmel.com> | 2014-05-07 18:28:40 +0200 |
| commit | 84882b060301c35ab7e2c1ef355b0bd06b764195 (patch) | |
| tree | a1d306946864a711f4cb7316ad49f7ef5c37e92e /include/linux/platform_data/at91_adc.h | |
| parent | 2de0c019f34ffbe49744c453628afb270aa9adb6 (diff) | |
iio: adc: at91_adc: Add support for touchscreens without TSMR
Old ADCs, as present on the sam9rl and the sam9g45 don't have a TSMR register
and the touchscreen support should be handled differently.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'include/linux/platform_data/at91_adc.h')
| -rw-r--r-- | include/linux/platform_data/at91_adc.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/platform_data/at91_adc.h b/include/linux/platform_data/at91_adc.h index fcf73879dbfe..7819fc787731 100644 --- a/include/linux/platform_data/at91_adc.h +++ b/include/linux/platform_data/at91_adc.h @@ -7,6 +7,12 @@ #ifndef _AT91_ADC_H_ #define _AT91_ADC_H_ +enum atmel_adc_ts_type { + ATMEL_ADC_TOUCHSCREEN_NONE = 0, + ATMEL_ADC_TOUCHSCREEN_4WIRE = 4, + ATMEL_ADC_TOUCHSCREEN_5WIRE = 5, +}; + /** * struct at91_adc_trigger - description of triggers * @name: name of the trigger advertised to the user @@ -28,6 +34,7 @@ struct at91_adc_trigger { * @trigger_number: Number of triggers available in the ADC * @use_external_triggers: does the board has external triggers availables * @vref: Reference voltage for the ADC in millivolts + * @touchscreen_type: If a touchscreen is connected, its type (4 or 5 wires) */ struct at91_adc_data { unsigned long channels_used; @@ -36,6 +43,7 @@ struct at91_adc_data { u8 trigger_number; bool use_external_triggers; u16 vref; + enum atmel_adc_ts_type touchscreen_type; }; extern void __init at91_add_device_adc(struct at91_adc_data *data); |