linux-kernel - Re: [PATCH] drm/display: add hw_params callback function to drm_connector_hdmi_audio

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250925025714.20121-1-liujianfeng1994@gmail.com>
Date: Thu, 25 Sep 2025 10:57:14 +0800
From: Jianfeng Liu <liujianfeng1994@...il.com>
To: dmitry.baryshkov@....qualcomm.com
Cc: airlied@...il.com,
	broonie@...nel.org,
	dri-devel@...ts.freedesktop.org,
	linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	liujianfeng1994@...il.com,
	lumag@...nel.org,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	quic_abhinavk@...cinc.com,
	simona@...ll.ch,
	sophon@...xa.com,
	tzimmermann@...e.de
Subject: Re: [PATCH] drm/display: add hw_params callback function to drm_connector_hdmi_audio_ops

Hi,

On 2025-09-25  2:18 UTC, Dmitry Baryshkov wrote:
>When does q6apm_lpass_dai_prepare() happen?

q6apm_lpass_dai_prepare() happens both before and after hw_params/prepare
of hdmi-codec:

[   14.055198] q6apm-lpass-dais 3700000.remoteproc:glink-edge:gpr:service@1:bedais: q6apm_lpass_dai_prepare() started
[   14.067225] q6apm-lpass-dais 3700000.remoteproc:glink-edge:gpr:service@1:bedais: q6apm_lpass_dai_prepare() started
[   14.089925] q6apm-lpass-dais 3700000.remoteproc:glink-edge:gpr:service@1:bedais: q6apm_lpass_dai_prepare() started
[   14.105988] hdmi-audio-codec hdmi-audio-codec.0.auto: hdmi_codec_hw_params() started
[   14.106027] q6apm-lpass-dais 3700000.remoteproc:glink-edge:gpr:service@1:bedais: q6apm_lpass_dai_prepare() started
[   14.122707] hdmi-audio-codec hdmi-audio-codec.0.auto: hdmi_codec_prepare() started
[   14.132017] q6apm-lpass-dais 3700000.remoteproc:glink-edge:gpr:service@1:bedais: q6apm_lpass_dai_prepare() started
[   14.197843] q6apm-lpass-dais 3700000.remoteproc:glink-edge:gpr:service@1:bedais: q6apm_lpass_dai_prepare() started
[   14.633992] msm_dpu ae01000.display-controller: [drm:adreno_request_fw] loaded qcom/a660_gmu.bin from new location
[   14.635452] [drm] Loaded GMU firmware v3.1.10
[   15.929293] rfkill: input handler disabled
[   19.406507] qcom-soundwire 3210000.soundwire: qcom_swrm_irq_handler: SWR Port collision detected
[   19.415672] q6apm-lpass-dais 3700000.remoteproc:glink-edge:gpr:service@1:bedais: q6apm_lpass_dai_prepare() started
[   19.465864] q6apm-lpass-dais 3700000.remoteproc:glink-edge:gpr:service@1:bedais: q6apm_lpass_dai_prepare() started
[   19.581446] q6apm-lpass-dais 3700000.remoteproc:glink-edge:gpr:service@1:bedais: q6apm_lpass_dai_prepare() started
[   19.693965] hdmi-audio-codec hdmi-audio-codec.0.auto: hdmi_codec_hw_params() started
[   19.694012] q6apm-lpass-dais 3700000.remoteproc:glink-edge:gpr:service@1:bedais: q6apm_lpass_dai_prepare() started
[   19.706621] hdmi-audio-codec hdmi-audio-codec.0.auto: hdmi_codec_prepare() started
[   19.722543] q6apm-lpass-dais 3700000.remoteproc:glink-edge:gpr:service@1:bedais: q6apm_lpass_dai_prepare() started
[   19.775071] q6apm-lpass-dais 3700000.remoteproc:glink-edge:gpr:service@1:bedais: q6apm_lpass_dai_prepare() started

Best regards,
Jianfeng