From 549818e5c85a6d806cdef146d0203df2689d4e2f Mon Sep 17 00:00:00 2001 From: Dmitry Osipenko Date: Sat, 4 Dec 2021 17:37:06 +0300 Subject: [PATCH] ASoC: dt-bindings: tegra20-i2s: Document new nvidia,fixed-parent-rate property 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. Reviewed-by: Rob Herring Signed-off-by: Dmitry Osipenko Link: https://lore.kernel.org/r/20211204143725.31646-4-digetx@gmail.com Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml index ad43b23..68ae124 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 -- 2.7.4