On 07/14/2014 06:58 PM, abhijit naik wrote: > Hi, > > I am studying ASP driver of DM6446 EVM in main line kernel 3.14. > I referred to both sound/soc/davinci/davinci-mcasp.c > and sound/soc/davinci/davinci-i2s.c
For DM6446 the correct driver would be the davinci-i2s. The audio interface is named as ASP in DM6446 which is an early version of McBSP - really basic IP (according to the TRMs). AFAIK there is no users of davinci-i2s in mainline and I do not have and I do not have HW where I can test it. Because of this lack of users there is no DT bindings for davinci-i2s - which should be renamed as davinci-asp IMHO. But the code looks like something which might work so at least w/o DT boot should be trivial to enable. If you look at arch/arm/mach-davinci/dm644x.c and board-dm644x-evm.c it is setting up davinci-mcbsp (which is implemented within davinci-i2s driver). So at least non DT boot should work with audio. > Which one among the two is correct for DM6446 ASP and I am seeing that there > is a device tree code in sound/soc/davinci/davinci-evm.c but corresponding > support code is not present in sound/soc/davinci/davinci-mcasp.c > > Please let me know whether this support is complete or can some one guide me > to working code for DM6446 ASP For what I see is that mainline should work with audio on dm644x-evm. -- Péter -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
