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From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Mark Brown <broonie@kernel.org>, Takashi Iwai <tiwai@suse.com>,
	Jaroslav Kysela <perex@perex.cz>,
	Liam Girdwood <lgirdwood@gmail.com>, Agneli <poczt@protonmail.ch>,
	Rob Herring <robh+dt@kernel.org>
Cc: linux-tegra@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
	devicetree@vger.kernel.org
Subject: [PATCH v1 03/20] ASoC: dt-bindings: tegra20-i2s: Document new nvidia,fixed-parent-rate property
Date: Thu, 25 Nov 2021 01:00:40 +0300	[thread overview]
Message-ID: <20211124220057.15763-4-digetx@gmail.com> (raw)
In-Reply-To: <20211124220057.15763-1-digetx@gmail.com>

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(+)

diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml
index cd87eb4ef995..28f964c759f6 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
-- 
2.33.1


  parent reply	other threads:[~2021-11-24 22:06 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-24 22:00 [PATCH v1 00/20] Support HDMI audio on NVIDIA Tegra20 Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 01/20] ASoC: dt-bindings: Add binding for Tegra20 S/PDIF Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 02/20] ASoC: dt-bindings: tegra20-i2s: Convert to schema Dmitry Osipenko
2021-11-25 21:26   ` Rob Herring
2021-11-26  1:08     ` Dmitry Osipenko
2021-11-24 22:00 ` Dmitry Osipenko [this message]
2021-11-24 22:00 ` [PATCH v1 04/20] dt-bindings: host1x: Document optional HDMI sound-dai-cells Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 05/20] ASoC: tegra20-spdif: stop setting slave_id Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 06/20] ASoC: tegra20: spdif: Support device-tree Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 07/20] ASoC: tegra20: spdif: Set FIFO trigger level Dmitry Osipenko
2021-11-25 12:02   ` Mark Brown
2021-11-25 12:04     ` Dmitry Osipenko
2021-11-25 12:28       ` Mark Brown
2021-11-25 12:53         ` Dmitry Osipenko
2021-11-25 13:18           ` Mark Brown
2021-11-25 13:36             ` Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 08/20] ASoC: tegra20: spdif: Improve driver's code Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 09/20] ASoC: tegra20: spdif: Use more resource-managed helpers Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 10/20] ASoC: tegra20: spdif: Reset hardware Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 11/20] ASoC: tegra20: spdif: Support system suspend Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 12/20] ASoC: tegra20: spdif: Filter out unsupported rates Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 13/20] ASoC: tegra20: i2s: " Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 14/20] drm/tegra: hdmi: Unwind tegra_hdmi_init() errors Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 15/20] drm/tegra: hdmi: Register audio CODEC on Tegra20 Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 16/20] ARM: tegra_defconfig: Enable S/PDIF driver Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 17/20] ARM: tegra: Add S/PDIF node to Tegra20 device-tree Dmitry Osipenko
2021-11-25 11:43   ` Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 18/20] ARM: tegra: Add HDMI audio graph " Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 19/20] ARM: tegra: acer-a500: Enable S/PDIF and HDMI audio Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 20/20] ARM: tegra: paz00: " Dmitry Osipenko

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