[alsa-devel] [PATCH RFC v2 REPOST 3/8] ASoC: davinci-evm: HDMI audio support for TDA998x trough McASP I2S bus
moinejf at free.fr
Wed Jan 15 16:51:00 CET 2014
On Wed, 15 Jan 2014 13:27:21 +0200
Jyri Sarha <jsarha at ti.com> wrote:
> From driver/gpu/drm/i2c/tda998x_drv.c. The driver configures CTS_N
> register statically to a value that works only with 4 byte samples.
> According to my tests it is possible to support 3 and 2 byte samples too
> by changing the CTS_N register value, but I am not sure if the
> configuration can be changed on the fly. My data sheet of the nxp chip
> is very vague about the register definitions, but I suppose the register
> configures some clock divider on the chip. HDMI supports only upto 24bit
> audio and the data sheet states that any extraneous least significant
> bits are ignored.
In the tda998x driver, the CTS_N is automatic (AIP_CNTRL_0_ACR_MAN is
Then, in my Cubox (Marvell A510 + tda19988), the 16, 24 and 32 bits
formats are working well with I2S input at any rate.
Ken ar c'hentañ | ** Breizh ha Linux atav! **
Jef | http://moinejf.free.fr/
More information about the Alsa-devel