NAK: [SRU][D/OEM-B-OSP1/E/unstable][PATCH 0/2] drm/i915: Fix the issue of "azx_get_response timeout" for hdmi audio on ICL platforms

[Hui Wang]

Will resend the patches for V2, in the V2, the Disco will be dropped.

On 2019/10/8 下午7:55, Hui Wang wrote:
> BugLink: https://bugs.launchpad.net/bugs/1847192
>
> Since Bionic kernel doesn't support ICL platforms (i915), so these two
> patches will not be sent to Bionic kernel.
>
> [Impact]
> On the ICL platforms, the hdmi can't work well, the audio driver
> will print "azx_get_response timeout" randomly, then the whole
> audio doesn't work anymore.
>
> [Fix]
> Intel provide these two fixes to us, and we tested these two
> patches, it really fixed the issue.
>
> [Test Case]
> Boot and check the hdmi audio, then suspend and resume, check
> the hdmi audio, all work well.
>
> [Regression Risk]
> Low, Only enable the audio PIN and enable the clock for ICL. we
> tested on both ICL and non-ICL, all worked well as before.
>
>
> Kai Vehmanen (2):
>    UBUNTU: SAUCE: drm/i915: Fix audio power up sequence for gen10+
>      display
>    UBUNTU: SAUCE: drm/i915: extend audio CDCLK>=2*BCLK constraint to more
>      platforms
>
>   drivers/gpu/drm/i915/i915_reg.h    |  3 +++
>   drivers/gpu/drm/i915/intel_audio.c | 11 ++++++++---
>   2 files changed, 11 insertions(+), 3 deletions(-)
>