dt-bindings: clock: cs2000-cp: document aux-output-source

This new optional property can be used to control the function of the
auxiliary output pin. Introduce a new dt-bindings include file that
contains the numerical values.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220125093336.226787-3-daniel@zonque.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/cirrus,cs2000-cp.yaml b/Documentation/devicetree/bindings/clock/cirrus,cs2000-cp.yaml
index 379a8bab49ca..79b90500f6ac 100644
--- a/Documentation/devicetree/bindings/clock/cirrus,cs2000-cp.yaml
+++ b/Documentation/devicetree/bindings/clock/cirrus,cs2000-cp.yaml
@@ -37,6 +37,17 @@ properties:
   reg:
     maxItems: 1
 
+  cirrus,aux-output-source:
+    description:
+      Specifies the function of the auxiliary clock output pin
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum:
+      - 0 # CS2000CP_AUX_OUTPUT_REF_CLK:  ref_clk input
+      - 1 # CS2000CP_AUX_OUTPUT_CLK_IN:   clk_in input
+      - 2 # CS2000CP_AUX_OUTPUT_CLK_OUT:  clk_out output
+      - 3 # CS2000CP_AUX_OUTPUT_PLL_LOCK: pll lock status
+    default: 0
+
 required:
   - compatible
   - reg
@@ -48,6 +59,8 @@ additionalProperties: false
 
 examples:
   - |
+    #include <dt-bindings/clock/cirrus,cs2000-cp.h>
+
     i2c@0 {
       reg = <0x0 0x100>;
       #address-cells = <1>;
@@ -59,5 +72,6 @@ examples:
         reg = <0x4f>;
         clocks = <&rcar_sound 0>, <&x12_clk>;
         clock-names = "clk_in", "ref_clk";
+        cirrus,aux-output-source = <CS2000CP_AUX_OUTPUT_CLK_OUT>;
       };
     };