On Sat, Feb 25, 2017 at 04:03:11PM +1100, Matt Flax wrote: > This patch set lets the ASoC system specify that an IC between the SoC and codec > is master. This is intended to put both the SoC and Codec into slave modes. > > By default un-patched SoC and Codec drivers will return -EINVAL if they aren't > enabled and tested for this mode. > > soc-dia.h has the new SND_SOC_DAIFMT_IBM_IFM definition set as : > #define SND_SOC_DAIFMT_IBM_IFM (5 << 12) /* IC clk & FRM master */ > > The cs42xx8 codec driver is enabled for this mode and so too is the BCM2835 > SoC driver. This forms a chain : bcm2835<=>IC<=>cs42xx8 > where the IC is bit and frame master. Model your IC as a codec. No need to add patches to random drivers and add a flag with the rather meaningless semantics "someone else is automagically setting up clocks for me". so long, Hias > > Matt Flax (3): > ASoC : Add an IC bit and frame master mode (SoC and Codec slave). > ASoC: cs42xx8: allow IC master mode. > ASoC: bcm2835: Add mutichannel mode in DSP and IC master modes. > > include/sound/soc-dai.h | 9 ++++++--- > sound/soc/bcm/bcm2835-i2s.c | 21 ++++++++++++++++++++- > sound/soc/codecs/cs42xx8.c | 1 + > 3 files changed, 27 insertions(+), 4 deletions(-) > > -- > 2.7.4 > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
