I have submitted to ALSA a driver that uses the PWM hardware of the Raspbery PI(bcm2835) as an audio driver.

http://mailman.alsa-project.org/pipermail/alsa-devel/2017-March/118652. html

The driver is currently mutually exclusive with the standard PWM driver, mostly because the standard PWM interface is not adequate to have an audio driver written on top of it.

But as I think more, I see no reason the user needs to chose at boot time if they want traditional PWM or AUDIO. So I'm thinking of some how combining the two drivers.

My question: 1. Is my driver a PWM driver that exposes an ALSA interface in additon to PWM? 2. Is my driver a ALSA driver that also exposes PWM. 3. Could my driver potentially go under misc or something new and expose both a PWM and ALSA interface. 4. Perhaps I should have both a PWM driver and a ALSA driver that both talk through a totally new but very small driver that controls access to the PWM hardware. How would the function drivers get loaded in this case?

And the $10,000 question of the day is who should I be e-mailing the driver to and which topic branches should the driver be merged through?