Hi Péter, > Am 04.07.2021 um 17:04 schrieb Peter Ujfalusi <peter.ujfalusi@xxxxxxxxx>: > > Hi, > > it has been on my todo list for several years to support McASP on OMAP4 devices. > For Galaxy Nexus we had an omap-mcasp driver (which was mostly a stripped down > davinci-mcasp driver) to support what was needed on that specific phone + it's > dock for S/PDIF (48KHz, 16bit, stereo). > > Not many (if any) device available to test the DIT mode of McASP. > I have used BeagleBone White (McASP1 AXR3 can be routed to a pin) to get the > S/PDIF mode working then PandaES for OMAP4 support (on PandaES the gpio_121 is > not used and the signal is routed to expansion J6 pin14) > > In theory the McASP in OMAP5 should be working after this series, but the OMAP5 > TRM is not public and I do not have one to check the addresses and see if there > is a way to test it on omap5-uevm. > > Mark, Tony: > The ASoC and dts patches can go via separate tree I felt that it is better if > they are together, at least initially. > > Nikolaus: fyi, this might be useful for Pyra? Yes, definitively. I just wonder how compatible it is with the "old" omap-mcasp driver we carry along for the Pyra: https://git.goldelico.com/?p=letux-kernel.git;a=blob;f=sound/soc/ti/omap-mcasp.c;h=24d839a24f34ec02456176744d3690016592b5a3;hb=7789ab635e56a2fd9fe04ca2e9ccfeaccb8e0f52 Does it now have additional functionality or robustness? And does it need changes of the OMAP5 device tree? And also important seems to be the ABE/AESS integration where we so far failed to make it work again on more recent kernels. Our most recent patch set is here: https://git.goldelico.com/?p=letux-kernel.git;a=shortlog;h=refs/heads/letux/aess-v5 Anyways I am happy to see a little progress on the omap4/5 audio subsystem. BR and thanks, Nikolaus > > Regards, > Péter > --- > Peter Ujfalusi (5): > ASoC: ti: davinci-mcasp: Fix DIT mode support > ASoC: dt-bindings: davinci-mcasp: Add compatible string for OMAP4 > ASoC: ti: davinci-mcasp: Add support for the OMAP4 version of McASP > ARM: dts: omap4-l4-abe: Correct sidle modes for McASP > ARM: dts: omap4-l4-abe: Add McASP configuration > > .../bindings/sound/davinci-mcasp-audio.txt | 1 + > arch/arm/boot/dts/omap4-l4-abe.dtsi | 39 ++-- > include/linux/platform_data/davinci_asp.h | 1 + > sound/soc/ti/Kconfig | 1 + > sound/soc/ti/davinci-mcasp.c | 168 +++++++++++++++--- > 5 files changed, 168 insertions(+), 42 deletions(-) > > -- > 2.32.0 >
