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authorFabio Estevam <fabio.estevam@nxp.com>2017-04-05 11:32:34 -0300
committerMax Krummenacher <max.krummenacher@toradex.com>2017-04-05 19:29:29 +0200
commit56b32850e08f94d5a5db28454ffce7aeb4ca6be9 (patch)
treefe69e597e5c1492a2c5e0ae0faed4f2ecd7caaa6 /arch/arm/boot/dts/vexpress-v2p-ca5s.dts
parentbad77047b191c7d62ce1f3e0762f775c5e256d7f (diff)
ASoC: sgtl5000: Allow LRCLK pad drive strength to be changed
Introduce the "lrclk-strength" property to allow LRCLK pad drive strength to be changed via device tree. When running a stress playback loop test on a mx6dl wandboard channel swap can be noticed on about 10% of the times. While debugging this issue I noticed that when probing the SGTL5000 LRCLK pin with the scope the swap did not happen. After removing the probe the swap started to happen again. After changing the LRCLK pad drive strength to the maximum value the issue is gone. Same fix works on a mx6dl Colibri board as well. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Backport from http://mailman.alsa-project.org/pipermail/alsa-devel/2017-April/119525.html Conflicts: Documentation/devicetree/bindings/sound/sgtl5000.txt sound/soc/codecs/sgtl5000.c Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
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