APPLIED: [SRU][Disco/Unstable][PATCH 0/3] Add support for ALC3277 codec on new Dell edge gateways (resend for D/unstable)

[Seth Forshee]

On Wed, Jan 09, 2019 at 03:20:11PM +0800, Hui Wang wrote:
> BugLink: https://bugs.launchpad.net/bugs/1807334
> 
> The patches for bionic and cosmic are merged. The Disco kernel is based
> on 4.19 and unstable kernel is based on 4.20 now, so resend the patches
> for them.
> 
> The 2nd patch can't be cherry-picked directly to 4.19 kernel, so it is
> backported.
> 
> [Impact]
> The Dell Edge IoT Gateway is based on kabylake, and the audio codec is alc3277
> which is connected to kabylake PCH via SSP0, there is no ASoC machine driver
> for this board, so the audio (line-out and line-in) can't work.
> 
> 
> [Fix]
> write a ASoC machine driver for this board, and this driver is based on
> the existing driver kbl_rt5663_max98927.c
> 
> 
> [Test Case]
> play sound via line-out jack, record sound via line-in jack, all work well.
> 
> 
> [Regression Potential]
> Very low, this machine driver is specific to Dell Edge IoT Gateway. Only
> the machine with the HID:10EC3277 in the BIOS can use this driver.

Applied to disco/master-next and unstable/master, thanks!