From: Richard Fitzgerald <rf@opensource.cirrus.com>
To: <broonie@kernel.org>, <robh+dt@kernel.org>, <nsaenzjulienne@suse.de>
Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org,
patches@opensource.cirrus.com, linux-kernel@vger.kernel.org,
Richard Fitzgerald <rf@opensource.cirrus.com>,
linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/7] ASoC: audio-graph-card: Add plls and sysclks DT bindings
Date: Fri, 16 Oct 2020 18:35:36 +0100 [thread overview]
Message-ID: <20201016173541.21180-3-rf@opensource.cirrus.com> (raw)
In-Reply-To: <20201016173541.21180-1-rf@opensource.cirrus.com>
This adds the two new properties 'plls' and 'sysclks' to the dt bindings.
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 <rf@opensource.cirrus.com>
---
.../bindings/sound/audio-graph-card.txt | 44 +++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/audio-graph-card.txt b/Documentation/devicetree/bindings/sound/audio-graph-card.txt
index d5f6919a2d69..59bbd5b55b59 100644
--- a/Documentation/devicetree/bindings/sound/audio-graph-card.txt
+++ b/Documentation/devicetree/bindings/sound/audio-graph-card.txt
@@ -32,6 +32,19 @@ Required properties:
Optional properties:
- pa-gpios: GPIO used to control external amplifier.
+- plls: 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.
+
+- sysclks: 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.
+
-----------------------
Example: Single DAI case
-----------------------
@@ -335,3 +348,34 @@ Example: Multi DAI with DPCM
};
};
};
+
+-----------------------
+Example: Set component sysclks and PLLs
+-----------------------
+
+ sound {
+ compatible = "audio-graph-card";
+
+ sysclks = <
+ &cs47l15 1 4 98304000 0
+ &cs47l15 8 4 147456000 0
+ >;
+ plls = <
+ &cs47l15 1 0 24576000 98304000
+ >;
+
+ dais = <&cpu_i2s_port>;
+ };
+
+ cs47l15: codec@0 {
+ ...
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ cs47l15_aif1_port: port@0 {
+ reg = <0>;
+ cs47l15_aif1: endpoint {
+ remote-endpoint = <&cpu_i2s_endpoint>;
+ };
+ };
+ };
--
2.20.1
next prev parent reply other threads:[~2020-10-16 17:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-16 17:35 [PATCH v2 0/7] Add support for Rpi4b + Cirrus Lochnagar2 and CS47L15 Richard Fitzgerald
2020-10-16 17:35 ` [PATCH v2 1/7] of: base: Add of_count_phandle_with_fixed_args() Richard Fitzgerald
2020-10-26 13:19 ` Rob Herring
2020-10-16 17:35 ` Richard Fitzgerald [this message]
2020-10-26 13:27 ` [PATCH v2 2/7] ASoC: audio-graph-card: Add plls and sysclks DT bindings Rob Herring
2020-10-26 13:38 ` Mark Brown
2020-11-02 11:48 ` Richard Fitzgerald
2020-10-16 17:35 ` [PATCH v2 3/7] ASoC: audio-graph-card: Support setting component plls and sysclks Richard Fitzgerald
2020-10-16 17:35 ` [PATCH v2 4/7] ASoC: arizona: Allow codecs to be selected from kernel config Richard Fitzgerald
2020-10-16 17:35 ` [PATCH v2 5/7] ASoC: madera: " Richard Fitzgerald
2020-10-16 17:35 ` [PATCH v2 6/7] ARM: dts: Add dts for RPi4b + Cirrus Logic Lochnagar2 + CS47L15 Richard Fitzgerald
2020-10-16 17:35 ` [PATCH v2 7/7] MAINTAINERS: Add dts for Cirrus Logic Lochnagar on RPi4 Richard Fitzgerald
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