diff mbox series

[v2,03/20] ASoC: dt-bindings: tegra20-i2s: Document new nvidia, fixed-parent-rate property

Message ID 20211126161807.15776-4-digetx@gmail.com
State Superseded
Headers show
Series None | expand

Commit Message

Dmitry Osipenko Nov. 26, 2021, 4:17 p.m. UTC
Document new nvidia,fixed-parent-rate property which instructs that this
board wants parent clock to stay at a fixed rate. It allows to prevent
conflicts between audio components that share same parent PLL. For
instance, this property allows to have HDMI audio, speaker and headphones
in the system playing audio simultaneously, which is a common pattern for
consumer devices.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 .../devicetree/bindings/sound/nvidia,tegra20-i2s.yaml      | 7 +++++++
 1 file changed, 7 insertions(+)

Comments

Rob Herring (Arm) Dec. 1, 2021, 11:50 p.m. UTC | #1
On Fri, 26 Nov 2021 19:17:50 +0300, Dmitry Osipenko wrote:
> Document new nvidia,fixed-parent-rate property which instructs that this
> board wants parent clock to stay at a fixed rate. It allows to prevent
> conflicts between audio components that share same parent PLL. For
> instance, this property allows to have HDMI audio, speaker and headphones
> in the system playing audio simultaneously, which is a common pattern for
> consumer devices.
> 
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> ---
>  .../devicetree/bindings/sound/nvidia,tegra20-i2s.yaml      | 7 +++++++
>  1 file changed, 7 insertions(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml
index ad43b237d9af..68ae124eaf80 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml
@@ -42,6 +42,13 @@  properties:
       - const: rx
       - const: tx
 
+  nvidia,fixed-parent-rate:
+    description: |
+      Specifies whether board prefers parent clock to stay at a fixed rate.
+      This allows multiple Tegra20 audio components work simultaneously by
+      limiting number of supportable audio rates.
+    type: boolean
+
 required:
   - compatible
   - reg