iio: stm32 trigger: Add support for TRGO2 triggers

Add support for TRGO2 trigger that can be found on STM32F7.
Add additional master modes supported by TRGO2.
Register additional "tim[1/8]_trgo2" triggers for timer1 & timer8.
Detect TRGO2 timer capability (master mode selection 2).

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/iio/timer/stm32-timer-trigger.h b/include/linux/iio/timer/stm32-timer-trigger.h
index 55535aef2e6c..fa7d786ed99e 100644
--- a/include/linux/iio/timer/stm32-timer-trigger.h
+++ b/include/linux/iio/timer/stm32-timer-trigger.h
@@ -10,6 +10,7 @@
 #define _STM32_TIMER_TRIGGER_H_
 
 #define TIM1_TRGO       "tim1_trgo"
+#define TIM1_TRGO2      "tim1_trgo2"
 #define TIM1_CH1        "tim1_ch1"
 #define TIM1_CH2        "tim1_ch2"
 #define TIM1_CH3        "tim1_ch3"
@@ -44,6 +45,7 @@
 #define TIM7_TRGO       "tim7_trgo"
 
 #define TIM8_TRGO       "tim8_trgo"
+#define TIM8_TRGO2      "tim8_trgo2"
 #define TIM8_CH1        "tim8_ch1"
 #define TIM8_CH2        "tim8_ch2"
 #define TIM8_CH3        "tim8_ch3"