[PATCH 1/4] dt-bindings: iio: stm32-dac: add support for STM32F4

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Introduce new compatible to support STM32F4 DAC (Digital-To-Analog
converter) variant.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@xxxxxx>
---
 Documentation/devicetree/bindings/iio/dac/st,stm32-dac.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/iio/dac/st,stm32-dac.txt b/Documentation/devicetree/bindings/iio/dac/st,stm32-dac.txt
index bcee71f..bf2925c 100644
--- a/Documentation/devicetree/bindings/iio/dac/st,stm32-dac.txt
+++ b/Documentation/devicetree/bindings/iio/dac/st,stm32-dac.txt
@@ -10,7 +10,9 @@ current.
 Contents of a stm32 dac root node:
 -----------------------------------
 Required properties:
-- compatible: Must be "st,stm32h7-dac-core".
+- compatible: Should be one of:
+  "st,stm32f4-dac-core"
+  "st,stm32h7-dac-core"
 - reg: Offset and length of the device's register set.
 - clocks: Must contain an entry for pclk (which feeds the peripheral bus
   interface)
-- 
1.9.1

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