From: Fabio Estevam <fabio.estevam@nxp.com>
Date: Sun, 14 May 2017 14:50:50 +0000 (-0300)
Subject: ARM: dts: imx6qdl-wandboard: Fix audio channel swap
X-Git-Tag: v4.1.52~269
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fce2603e768a80a9b28477ab52ca72e25a045a84;p=thirdparty%2Fkernel%2Fstable.git

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

[ 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.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---

diff --git a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
index 9e096d811beda..7a032dd84bb22 100644
--- a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
@@ -88,6 +88,7 @@
 		clocks = <&clks 201>;
 		VDDA-supply = <&reg_2p5v>;
 		VDDIO-supply = <&reg_3p3v>;
+		lrclk-strength = <3>;
 	};
 };