[alsa-devel] [PATCH 1/4] ASoC: pxa-ssp: enhance I2S and add Left_J support

Daniel Ribeiro drwyrm at gmail.com
Tue Jun 9 12:10:00 CEST 2009

Em Ter, 2009-06-09 às 17:39 +0800, Paul Shen escreveu:
> Hi Daniel,
> Would you please give some informations about your platform ?
> Thus I can test the patches with your method.
> Would you please give me code extract about your SSP, codec
> configurations and clock setting?

Hi Paul! :)

Im working to get Motorola EZX Phones[1] supported by mainline linux.

Our audio codec is a proprietary PMIC, manufactured by TI for Motorola,
named PCAP2(PTWL93017).

The audio codec is connected to PXA SSP2, PXA SSP3, Baseband Processor
and BCM20x5(bluetooth) in network mode.

PXA is always the _slave_ of bitclock and frame, so I don't have to care
about clock settings on PXA side, the codec always provides me the
correct clock for the selected rate.

You can find our code on git://git.openezx.org/openezx.git, ezx/current
branch. (sound/soc/pxa/ezx.c and sound/soc/codecs/pcap2.c).

Most of our work is based on the 2.4 kernel source releases by
motorola[2], and on the atlas(MC13783) PMIC documentation[3] from
Freescale (used by Motorola on newer(MAGX) phones), as we don't have
documentation for PCAP2.


Daniel Ribeiro
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