Subject: [PATCH 2/7] ASoC: simple-card: Add plls and sysclks DT schema

From: Richard Fitzgerald <[email-masked]>
Date: Wed, 14 Oct 2020 15:54:13 +0100

This adds the two new properties 'plls' and 'sysclks' to the dt bindings
schema document. These add the ability to set values that will be
passed to snd_soc_component_set_sysclk() and snd_soc_component_set_pll().

Signed-off-by: Richard Fitzgerald <[email-masked]>
---
 .../bindings/sound/simple-card.yaml           | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/simple-card.yaml b/Documentation/devicetree/bindings/sound/simple-card.yaml
index 35e669020296..48c9a4313d58 100644
--- a/Documentation/devicetree/bindings/sound/simple-card.yaml
+++ b/Documentation/devicetree/bindings/sound/simple-card.yaml
@@ -92,6 +92,25 @@ definitions:
     description: the widget names for which pin switches must be created.
     $ref: /schemas/types.yaml#/definitions/string-array
 
+  plls:
+    description: |
+      A list of component pll settings that will be applied with
+      snd_soc_component_set_pll. Each entry is a phandle to the node of the
+      codec or cpu component, followed by the four arguments id, source,
+      frequency_in, frequency_out. Multiple entries can have the same phandle
+      so that several plls can be set in the same component.
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+
+  sysclks:
+    description: |
+      A list of component sysclk settings that will be applied with
+      snd_soc_component_set_sysclk. Each entry is a phandle to the node of
+      the codec or cpu component, followed by the four arguments id, source,
+      frequency, direction. Direction is 0 if the clock is an input, 1 if it
+      is an output. Multiple entries can have the same phandle so that several
+      clocks can be set in the same component.
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+
   format:
     description: audio format.
     items:
@@ -192,6 +211,10 @@ patternProperties:
     $ref: "#/definitions/prefix"
   "^simple-audio-card,pin-switches$":
     $ref: "#/definitions/pin-switches"
+  "^simple-audio-card,plls$":
+    $ref: "#/definitions/plls"
+  "^simple-audio-card,sysclks$":
+    $ref: "#/definitions/sysclks"
   "^simple-audio-card,hp-det-gpio$":
     maxItems: 1
   "^simple-audio-card,mic-det-gpio$":
@@ -489,3 +512,36 @@ examples:
             };
         };
     };
+
+#--------------------
+# Codec with component PLL and SYSCLK settings
+#--------------------
+  - |
+    sound {
+        compatible = "simple-audio-card";
+
+        simple-audio-card,plls = <
+            &cs47l15 1 1 32768 98304000
+        >;
+
+        simple-audio-card,sysclks = <
+            &cs47l15 1 4 98304000 0
+            &cs47l15 8 4 147456000 0
+        >;
+
+        simple-audio-card,format = "i2s";
+        simple-audio-card,bitclock-master = <&cs47l15_codec_dai>;
+        simple-audio-card,frame-master = <&cs47l15_codec_dai>;
+
+        simple-audio-card,cpu {
+            sound-dai = <&axi_i2s0 0>;
+        };
+
+        cs47l15_codec_dai: simple-audio-card,codec {
+            sound-dai = <&cs47l15 0>;
+
+            /* Disable dai_set_sysclk() */
+            system-clock-frequency = <0>;
+            mclk-fs = <0>;
+        };
+    };
-- 
2.20.1

_______________________________________________
linux-arm-kernel mailing list
[email-masked]
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel