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Patch "ARM: dts: imx6qdl-wandboard: Fix audio channel swap" has been added to the 4.4-stable tree

PATCH [email protected] 1 participant 1 message Apr 10, 2018

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This is a note to let you know that I've just added the patch titled

ARM: dts: imx6qdl-wandboard: Fix audio channel swap

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
arm-dts-imx6qdl-wandboard-fix-audio-channel-swap.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From foo@baz Tue Apr 10 10:31:53 CEST 2018

From: Fabio Estevam <[email protected]>
Date: Sun, 14 May 2017 11:50:50 -0300
Subject: ARM: dts: imx6qdl-wandboard: Fix audio channel swap

From: Fabio Estevam <[email protected]>

[ Upstream commit 79935915300c5eb88a0e94fa9148a7505c14a02a ]

When running a stress playback/stop loop test on a mx6wandboard channel swaps can be noticed randomly.

Increasing the SGTL5000 LRCLK pad strength to its maximum value fixes the issue, so add the 'lrclk-strength' property to avoid the audio channel swaps.

---
 arch/arm/boot/dts/imx6qdl-wandboard.dtsi |    1 +
 1 file changed, 1 insertion(+)
arch/arm/boot/dts/imx6qdl-wandboard.dtsi +1 -0
@@ -88,6 +88,7 @@
 		clocks = <&clks 201>;
 		VDDA-supply = <&reg_2p5v>;
 		VDDIO-supply = <&reg_3p3v>;
+		lrclk-strength = <3>;
 	};
 };
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/arm-dts-imx6qdl-wandboard-fix-audio-channel-swap.patch queue-4.4/arm-dts-imx53-qsrb-pulldown-pmic-irq-pin.patch queue-4.4/arm-imx-add-mxc_cpu_imx6ull-and-cpu_is_imx6ull.patch