ASoC: dt-bindings: add mclk support to cs42l51

Add clocks properties to cs42l51 Cirrus codec,
to support master clock provider.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 17 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/sound/cs42l51.txt b/Documentation/devicetree/bindings/sound/cs42l51.txt
new file mode 100644
index 000000000000..4b5de33ce377
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/cs42l51.txt
@@ -0,0 +1,17 @@
+CS42L51 audio CODEC
+
+Optional properties:
+
+  - clocks : a list of phandles + clock-specifiers, one for each entry in
+    clock-names
+
+  - clock-names : must contain "MCLK"
+
+Example:
+
+cs42l51: cs42l51@4a {
+	compatible = "cirrus,cs42l51";
+	reg = <0x4a>;
+	clocks = <&mclk_prov>;
+	clock-names = "MCLK";
+};