linux-kernel - Re: [PATCH 0/1] Fiji GPU audio register timeout when in BACO state

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Date:   Sat, 2 May 2020 09:17:28 +0200
From:   Lukas Wunner <lukas@...ner.de>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     Nicholas Johnson <nicholas.johnson-opensource@...look.com.au>,
        Alex Deucher <alexdeucher@...il.com>,
        "Zhou, David(ChunMing)" <David1.Zhou@....com>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "amd-gfx@...ts.freedesktop.org" <amd-gfx@...ts.freedesktop.org>,
        Takashi Iwai <tiwai@...e.com>,
        "Deucher, Alexander" <Alexander.Deucher@....com>,
        "Koenig, Christian" <Christian.Koenig@....com>
Subject: Re: [PATCH 0/1] Fiji GPU audio register timeout when in BACO state

On Sat, May 02, 2020 at 09:11:58AM +0200, Takashi Iwai wrote:
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -673,6 +673,12 @@ static int amdgpu_dm_audio_component_bind(struct device *kdev,
>  	struct amdgpu_device *adev = dev->dev_private;
>  	struct drm_audio_component *acomp = data;
>  
> +	if (!device_link_add(hda_kdev, kdev, DL_FLAG_STATELESS |
> +			     DL_FLAG_PM_RUNTIME)) {
> +		DRM_ERROR("DM: cannot add device link to audio device\n");
> +		return -ENOMEM;
> +	}
> +

Doesn't this duplicate drivers/pci/quirks.c:quirk_gpu_hda() ?