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Message-ID: <ZfvN5jDrftG-YRG4@titan>
Date: Thu, 21 Mar 2024 17:04:22 +1100
From: John Watts <contact@...kia.org>
To: Saravana Kannan <saravanak@...gle.com>
Cc: Rob Herring <robh+dt@...nel.org>, Frank Rowand <frowand.list@...il.com>,
	Hervé Codina <herve.codina@...tlin.com>,
	Luca Ceresoli <luca.ceresoli@...tlin.com>, kernel-team@...roid.com,
	Rob Herring <robh@...nel.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] of: property: fw_devlink: Fix stupid bug in
 remote-endpoint parsing

On Fri, Feb 23, 2024 at 09:24:35PM -0800, Saravana Kannan wrote:
> Introduced a stupid bug in commit 782bfd03c3ae ("of: property: Improve
> finding the supplier of a remote-endpoint property") due to a last minute
> incorrect edit of "index !=0" into "!index". This patch fixes it to be
> "index > 0" to match the comment right next to it.
> 
> Reported-by: Luca Ceresoli <luca.ceresoli@...tlin.com>
> Link: https://lore.kernel.org/lkml/20240223171849.10f9901d@booty/
> Fixes: 782bfd03c3ae ("of: property: Improve finding the supplier of a remote-endpoint property")
> Signed-off-by: Saravana Kannan <saravanak@...gle.com>
> ---
> Using Link: instead of Closes: because Luca reported two separate issues.
> 
> Sorry about introducing a stupid bug in an -rcX Rob.
> 
> -Saravana

Hi there,

Could this be reverted? It breaks my audio-graph-card2 setup:

[   17.116290] platform 2034000.i2s: deferred probe pending: platform: wait for supplier /sound/multi
[   17.125370] platform test_codec: deferred probe pending: platform: wait for supplier /sound/multi
[   17.134257] platform sound: deferred probe pending: asoc-audio-graph-card2: parse error

/ {
	...


	test_codec {
		compatible = "test-codec";
		prefix = "Test codec";
		#sound-dai-cells = <0>;
		port {
			test_ep: endpoint {
				remote-endpoint = <&card_ep_2>;
			};
		};
	};

	sound {
		compatible = "audio-graph-card2";
		label = "CS5368";
		links = <&i2s2_port>;
		multi {
			#address-cells = <1>;
			#size-cells = <0>;
			convert-channels = <16>;
			port@0 {
				reg = <0>;
				card_ep_0: endpoint {
					remote-endpoint = <&i2s2_ep>;
				};
			};
			//port@1 {
			//	reg = <1>;
			//	card_ep_1: endpoint {
			//		remote-endpoint = <&cs5368_ep>;
			//	};
			//};
			port@1 {
				reg = <1>;
				card_ep_2: endpoint {
					remote-endpoint = <&test_ep>;
				};
			};
		};
	};
};


&i2s2 {
	pinctrl-0 = <&i2s2_pins>, <&i2s2_din_pins>;
	pinctrl-names = "default";
	status = "okay";
	i2s2_port: port {
		i2s2_ep: endpoint {
			format = "dsp_a";
			bitclock-master;
			frame-master;
			remote-endpoint = <&card_ep_0>;
		};
	};
};

John.

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