lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20240820112827.126380-2-elinor.montmasson@savoirfairelinux.com>
Date: Tue, 20 Aug 2024 13:28:26 +0200
From: Elinor Montmasson <elinor.montmasson@...oirfairelinux.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Mark Brown <broonie@...nel.org>
Cc: Pengutronix Kernel Team <kernel@...gutronix.de>,
	Shengjiu Wang <shengjiu.wang@...il.com>,
	Xiubo Li <Xiubo.Lee@...il.com>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	alsa-devel@...a-project.org,
	Elinor Montmasson <elinor.montmasson@...oirfairelinux.com>
Subject: [PATCH v7 1/2] arm64: dts: imx8m: update spdif sound card node properties

The merge of imx-spdif driver into fsl-asoc-card brought
new DT properties that can be used with the "fsl,imx-audio-spdif"
compatible:
* The "spdif-controller" property from imx-spdif is named "audio-cpu"
  in fsl-asoc-card.
* fsl-asoc-card uses codecs explicitly declared in DT
  with "audio-codec".
  With an S/PDIF, codec drivers spdif_transmitter and
  spdif_receiver should be used.
  Driver imx-spdif used instead the dummy codec and a pair of
  boolean properties, "spdif-in" and "spdif-out".

While backward compatibility is kept to support properties
"spdif-controller", "spdif-in" and "spdif-out", using new properties has
several benefits:
* "audio-cpu" and "audio-codec" are more generic names reflecting
  that the fsl-asoc-card driver supports multiple hardware.
  They are properties already used by devices using the
  fsl-asoc-card driver.
  They are also similar to properties of simple-card: "cpu" and "codec".
* "spdif-in" and "spdif-out" imply the use of the dummy codec in the
  driver. However, there are already two codec drivers for the S/PDIF,
  spdif_transmitter and spdif_receiver.
  It is better to declare S/PDIF Tx and Rx devices in a DT, and then
  reference them with "audio-codec" than using the dummy codec.

For those reasons, this commit updates in-tree DTs to use the new
properties:
* Rename "spdif-controller" property to "audio-cpu".
* Declare S/PDIF transmitter and/or receiver devices, and use them with
  the "audio-codec" property instead of "spdif-out" and/or "spdif-in".

These modifications were tested only on an imx8mn-evk board.

Note that out-of-tree and old DTs are still supported.

Signed-off-by: Elinor Montmasson <elinor.montmasson@...oirfairelinux.com>
---
 arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 15 +++++++++---
 arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi | 15 +++++++++---
 arch/arm64/boot/dts/freescale/imx8mq-evk.dts  | 24 +++++++++++++++----
 3 files changed, 43 insertions(+), 11 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
index 930e14fec423..5f8336217bb8 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
@@ -180,12 +180,21 @@ cpu {
 		};
 	};
 
+	spdif_out: spdif-out {
+		compatible = "linux,spdif-dit";
+		#sound-dai-cells = <0>;
+	};
+
+	spdif_in: spdif-in {
+		compatible = "linux,spdif-dir";
+		#sound-dai-cells = <0>;
+	};
+
 	sound-spdif {
 		compatible = "fsl,imx-audio-spdif";
 		model = "imx-spdif";
-		spdif-controller = <&spdif1>;
-		spdif-out;
-		spdif-in;
+		audio-cpu = <&spdif1>;
+		audio-codec = <&spdif_out>, <&spdif_in>;
 	};
 };
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi
index 9e0259ddf4bc..33d73f3dc187 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi
@@ -124,12 +124,21 @@ sound-wm8524 {
 			"Line Out Jack", "LINEVOUTR";
 	};
 
+	spdif_out: spdif-out {
+		compatible = "linux,spdif-dit";
+		#sound-dai-cells = <0>;
+	};
+
+	spdif_in: spdif-in {
+		compatible = "linux,spdif-dir";
+		#sound-dai-cells = <0>;
+	};
+
 	sound-spdif {
 		compatible = "fsl,imx-audio-spdif";
 		model = "imx-spdif";
-		spdif-controller = <&spdif1>;
-		spdif-out;
-		spdif-in;
+		audio-cpu = <&spdif1>;
+		audio-codec = <&spdif_out>, <&spdif_in>;
 	};
 
 	sound-micfil {
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
index 7507548cdb16..a87d0692c3bb 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
@@ -125,19 +125,33 @@ link_codec: simple-audio-card,codec {
 		};
 	};
 
+	spdif_out: spdif-out {
+		compatible = "linux,spdif-dit";
+		#sound-dai-cells = <0>;
+	};
+
+	spdif_in: spdif-in {
+		compatible = "linux,spdif-dir";
+		#sound-dai-cells = <0>;
+	};
+
 	sound-spdif {
 		compatible = "fsl,imx-audio-spdif";
 		model = "imx-spdif";
-		spdif-controller = <&spdif1>;
-		spdif-out;
-		spdif-in;
+		audio-cpu = <&spdif1>;
+		audio-codec = <&spdif_out>, <&spdif_in>;
+	};
+
+	hdmi_arc_in: hdmi-arc-in {
+		compatible = "linux,spdif-dir";
+		#sound-dai-cells = <0>;
 	};
 
 	sound-hdmi-arc {
 		compatible = "fsl,imx-audio-spdif";
 		model = "imx-hdmi-arc";
-		spdif-controller = <&spdif2>;
-		spdif-in;
+		audio-cpu = <&spdif2>;
+		audio-codec = <&hdmi_arc_in>;
 	};
 };
 
-- 
2.34.1


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ