[PATCH 5/5] iio: adc: stm32: add exti11 gpio trigger source
From: Fabrice Gasnier <hidden>
Date: 2017-01-30 14:15:54
Also in:
linux-devicetree, linux-iio, lkml
Subsystem:
iio subsystem and drivers, the rest · Maintainers:
Jonathan Cameron, Linus Torvalds
STM32F4 ADC can use exti11 (gpio) signal as trigger source for conversions. Signed-off-by: Fabrice Gasnier <redacted> --- 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