Here's three patches adding support for audio on iPaq hx4700 PDA. AK4641 codec driver was originally written by Harald Welte for gnufiish project [1], then Philipp Zabel adapted it to use on hx4700. I picked Philipp's patches from his git repository[2], updated them to current kernel and also fixed all the issues I've met while using these patches on my hx4700 device. So now I would like to submit these patches for review in hope they could be included in 2.6.38.
This patchset is based on linux-next-20101119
[1] http://gnufiish.org [2] http://git.linuxtogo.org/?p=ph5/kernel.git;a=summary
Dmitry Artamonow (2): ASoC: Asahi Kasei AK4641 codec driver ASoC: add iPAQ hx4700 machine driver
Philipp Zabel (1): pxa/hx4700: add I2C board info for AK4641 codec
arch/arm/mach-pxa/hx4700.c | 18 + arch/arm/mach-pxa/include/mach/hx4700.h | 4 +- include/sound/ak4641.h | 26 ++ sound/soc/codecs/Kconfig | 4 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/ak4641.c | 628 +++++++++++++++++++++++++++++++ sound/soc/codecs/ak4641.h | 47 +++ sound/soc/pxa/Kconfig | 9 + sound/soc/pxa/Makefile | 2 + sound/soc/pxa/hx4700.c | 253 +++++++++++++ 10 files changed, 991 insertions(+), 2 deletions(-) create mode 100644 include/sound/ak4641.h create mode 100644 sound/soc/codecs/ak4641.c create mode 100644 sound/soc/codecs/ak4641.h create mode 100644 sound/soc/pxa/hx4700.c