On Mon, Nov 30, 2009 at 06:09:24PM +0100, javier Martin wrote: > 2009/11/30 javier Martin <javier.martin@xxxxxxxxxxxxxxxxx> > > > Dear Sascha, > > in "imx_ssi_set_dai_fmt()" callback you should add something like: > > > > /* sync */ > > scr |= SSI_SCR_SYN; > > > > This would enable SSI working in SYN mode which means that RX and TX > > sections will share same frame and bit clocks. Right now I can't imagine a > > situation where this is not desirable. Moreover, if I don't add SYN mode I > > cannot get it working in my i.mx27 based board with an wm8974. > > > > Well, after a chat with Mark it seems that it is not so uncommon that RX and > TX sections have different clocks. So you could add a flag in the platform > data similar to the one that switches between FIQ and DMA so that people can > choose if they want the feature or not. Ok, will do. I myself use the asynchronous mode. The MC13783 I use has two SSI ports, one for capture and one for playback. I route both ports to the same SSI unit using the audio muxer. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
