Hi, On Sun, Apr 16, 2017 at 07:12:55AM -0700, [email protected] wrote: > I'm trying to get I2S output on Allwinner R8 (actually an NTC GR8).
Soo, not an R8 ? :) > I managed to get a signal but the MCLK (master clock) is needs to be > inverted, others seems correct (I'm checking output signals with an > oscilloscope). > > I use a simple-audio-card based driver and tried adding > "simple-audio-card,bitclock-inversion" to my device tree overlay but it > doesn't make any difference. > > Can anyone assist or redirect me to the right direction? Thanks. I don't have any boards to test it here, unfortunately. Could you paste somewhere your overlay, and tell how you apply it? If you want to poke around, this is where the polarity of the clocks is supposed to be handled: http://lxr.free-electrons.com/source/sound/soc/sunxi/sun4i-i2s.c#L296 Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
signature.asc
Description: PGP signature
