4.9-stable review patch. If anyone has any objections, please let me know.
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From: Fabio Estevam fabio.estevam@nxp.com
[ 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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/boot/dts/imx6qdl-wandboard.dtsi | 1 + 1 file changed, 1 insertion(+)
--- a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi +++ b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi @@ -88,6 +88,7 @@ clocks = <&clks IMX6QDL_CLK_CKO>; VDDA-supply = <®_2p5v>; VDDIO-supply = <®_3p3v>; + lrclk-strength = <3>; }; };