dt-bindings: iio: timer: stm32: add support for STM32H7

STM32H7 has slightly different triggers than previous versions.
Introduce st,stm32h7-timer-trigger compatible to handle this new variant.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt b/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
index 6abc755..b8e8c76 100644 (file)
--- a/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
+++ b/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
@@ -4,7 +4,9 @@ Must be a sub-node of an STM32 Timers device tree node.
 See ../mfd/stm32-timers.txt for details about the parent node.
 
 Required parameters:
-- compatible:  Must be "st,stm32-timer-trigger".
+- compatible:  Must be one of:
+               "st,stm32-timer-trigger"
+               "st,stm32h7-timer-trigger"
 - reg:         Identify trigger hardware block.
 
 Example: