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[v3,3/3] dt-bindings: rockchip: rk809: Document audio codec clock

Message ID 20240120135529.899403-4-tim@feathertop.org
State New
Headers show
Series dt-bindings: rockchip: Add support for rk809 audio codec | expand

Commit Message

Tim Lunn Jan. 20, 2024, 1:55 p.m. UTC
Rockchip RK809 shares the same audio codec block as the rk817 mfd, and
is compatible with the existing rk817_codec driver. This patch
introduces the clock required for the audio codec.

This clock provides the I2S master clock for the audio data. The codec
driver finds the clock by the name "mclk" and will fail to register if
this is missing. Clock-names is kept here to keep  compatibility with the
exisitng driver ABI and also to be consistent with the rk817 binding.

This series fixes the following warning from dtb check:

pmic@20: '#sound-dai-cells', 'assigned-clock-parents', 'assigned-clocks',
'clock-names', 'clocks', 'codec' do not match any of the regexes:
'pinctrl-[0-9]+'
Signed-off-by: Tim Lunn <tim@feathertop.org>

---

Changes in v3:
- split out clocks into separate patch and group example properties
  where properties are introduced.
- Address review comments
- drop clock descriptions that arent required
- set maxitems on clocks

Changes in v2:
- Fix missing include and pinctrl for codec example

 .../devicetree/bindings/mfd/rockchip,rk809.yaml      | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)
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Patch

diff --git a/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml b/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml
index be0616201f52..0174261449ab 100644
--- a/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml
+++ b/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml
@@ -93,6 +93,13 @@  properties:
         unevaluatedProperties: false
     unevaluatedProperties: false
 
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: mclk
+
   '#sound-dai-cells':
     const: 0
 
@@ -135,6 +142,7 @@  additionalProperties: false
 
 examples:
   - |
+    #include <dt-bindings/clock/px30-cru.h>
     #include <dt-bindings/pinctrl/rockchip.h>
     #include <dt-bindings/interrupt-controller/irq.h>
     #include <dt-bindings/gpio/gpio.h>
@@ -149,8 +157,10 @@  examples:
             clock-output-names = "xin32k", "rk808-clkout2";
             interrupt-parent = <&gpio3>;
             interrupts = <10 IRQ_TYPE_LEVEL_LOW>;
+            clock-names = "mclk";
+            clocks = <&cru SCLK_I2S1_OUT>;
             pinctrl-names = "default";
-            pinctrl-0 = <&pmic_int_l_pin>;
+            pinctrl-0 = <&pmic_int_l_pin>, <&i2s1_2ch_mclk>;
             rockchip,system-power-controller;
             wakeup-source;
             #sound-dai-cells = <0>;