ACK: [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]

On 2019/10/9 下午3:26, Stefan Bader wrote:
> On 08.10.19 13:55, 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(-)
>>
> Both changes are closely related and mostly (with additional explanation that
> Canonlake is gen 10) replacements without real change. Only the additional part
> which is as described.
>
>
> Acked-by: Stefan Bader <stefan.bader at canonical.com>
Sorry, I need to resend the patches for V2, since these patches will not 
be applied to Disco.
>
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