APPLIED: [PATCH 0/2][SRU][F][linux-firmware] Fix The sound has noise while audio volume is maximum

[Seth Forshee]

On Wed, Apr 28, 2021 at 10:26:24AM +0800, koba.ko at canonical.com wrote:
> From: Koba Ko <koba.ko at canonical.com>
> 
> BugLink: https://bugs.launchpad.net/bugs/1926236
> 
> [Impact]
> The sound has noise while turning the audio volume to maximum
> 
> [Fix]
> For VEGA & Polaris, need two patches(landed on mainline kernel) to fix and a modprobe parameter
> 1.(50ceb1fe7a) drm/amd/pm: bug fix for pcie dpm, has landed on oem kernel.
> 2.(9d03730ecb) drm/amd/pm: workaround for audio noise issue, has landed on oem kernel
> 3. #modprobe amdgpu ppfeaturemask=0xfff7bffb.
> For Navi_1x, need smc firmware to fix.
> 1. (4fe6e53b96 linux-firmware) amdgpu: update navi10 SMC firmware
> 1. (8ab7abaf63 linux-firmware) amdgpu: update navi14 SMC firmware
> 
> [Test]
> Verified on RKL platform 
> A. with wx3200(Polaris series) and the following
> configuration
> 1. With these two patch,
> 1.1. (50ceb1fe7a) drm/amd/pm: bug fix for pcie dpm, has landed on oem kernel.       
> 1.2. (9d03730ecb) drm/amd/pm: workaround for audio noise issue, has landed on oem kernel
> 
> 2. doesn't append ppfeaturemask=0xfff7bffb
> 
> Can't observe issue.
> 
> B. With wx5500(Navi series) and update the related firmware,
> Can't observe issue
> 
> [Where problems could occur]
> Because disabling DPM, the power consumption would be slightly higher.

Applied, thanks!