STM32F4 ADC can use exti11 (gpio) signal as trigger source for
conversions.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@xxxxxx>
---
drivers/iio/adc/stm32-adc.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c
index be0e457..0118c9c 100644
--- a/drivers/iio/adc/stm32-adc.c
+++ b/drivers/iio/adc/stm32-adc.c
@@ -26,6 +26,7 @@
#include <linux/iio/iio.h>
#include <linux/iio/buffer.h>
#include <linux/iio/timer/stm32-timer-trigger.h>
+#include <linux/iio/trigger/stm32-exti-trigger.h>
#include <linux/iio/trigger.h>
#include <linux/iio/trigger_consumer.h>
#include <linux/iio/triggered_buffer.h>
@@ -240,6 +241,7 @@ struct stm32_adc_chan_spec {
{ TIM5_CH3, STM32_EXT12 },
{ TIM8_CH1, STM32_EXT13 },
{ TIM8_TRGO, STM32_EXT14 },
+ { STM32_EXTI(11), STM32_EXT15 },
{}, /* sentinel */
};
@@ -409,6 +411,11 @@ static int stm32_adc_get_trig_extsel(struct iio_trigger *trig)
!strcmp(stm32f4_adc_trigs[i].name, trig->name)) {
return stm32f4_adc_trigs[i].extsel;
}
+
+ if (is_stm32_exti_trigger(trig) &&
+ !strcmp(stm32f4_adc_trigs[i].name, trig->name)) {
+ return stm32f4_adc_trigs[i].extsel;
+ }
}
return -EINVAL;
--
1.9.1
--
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