35 lines
1.6 KiB
Plaintext
35 lines
1.6 KiB
Plaintext
Default source tree (not in git): ../kernel-src/linux-hwe-6.17-6.17.0/
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ChromeOS v5.15 vs Ubuntu HWE 6.17 (sound/soc/intel/boards/sof_board_helpers.c)
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================================================================================
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Key upstream renames (not bugs by themselves):
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- dpcm_playback / dpcm_capture on DAI links -> playback_only / capture_only
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(see include/sound/soc.h). ChromeOS set_idisp_hdmi used dpcm_playback=1;
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6.17 uses playback_only=1 for the same iDisp HDMI BE link.
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Other 6.17 deltas in this file: HDA external codec widgets/routes, EXPORT_SYMBOL_NS
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string form, enum snd_soc_acpi_intel_codec renames, DMIC capture_only, etc.
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sof_rt5682.c differs heavily by DMI quirks and API; no Kaisa-specific string in
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either tree (board selection is via ACPI / machine driver data).
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Experiment patch 0002 (applies on 6.17):
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- Adds link->trigger[0/1] = SND_SOC_DPCM_TRIGGER_POST in set_idisp_hdmi_link,
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similar to older Intel boards (e.g. bdw_rt286).
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Build smoke-test (object file only, not full deb):
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- make x86_64_defconfig && make prepare SKIP_STACK_VALIDATION=1
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- make sound/soc/intel/boards/sof_board_helpers.o
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Full Ubuntu package: fakeroot debian/rules binary-generic (needs apt build-dep
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linux-hwe-6.17, large disk/time). Install linux-image-* / linux-modules-* on Kaisa.
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Kaisa 真机验证（安装新 deb 并重启后）
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------------------------------------
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1. uname -r
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2. aplay -L | head -80
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3. speaker-test -D plughw:卡号,设备号 -c 2 -l 1 # 对照 HDMI 对应 PCM
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4. sudo dmesg | grep -iE 'sof|STREAM_PCM|ipc failed|pcm[0-9]' | tail -60
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5. 将输出保存到 audio_topology/collected/ 便于前后对比
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