This is a note to let you know that I've just added the patch titled ASoC: intel/skl/hda - fix probe regression on systems without i915 to the 5.8-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: asoc-intel-skl-hda-fix-probe-regression-on-systems-w.patch and it can be found in the queue-5.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 322ed8850c263b6971e7ccf644fc37829b967325 Author: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx> Date: Tue Jul 14 16:28:04 2020 +0300 ASoC: intel/skl/hda - fix probe regression on systems without i915 [ Upstream commit ffc6d45d96f07a32700cb6b7be2d3459e63c255a ] Starting in commit cbc7a6b5a87a ("ASoC: soc-card: add snd_soc_card_add_dai_link()"), error value from ASoc add_dai_link() is no longer ignored. The generic HDA machine driver relied on the old semantics to disable i915 HDMI/DP audio codec at runtime. If no display codec was present, add_dai_link() returned an error, but this was ignored and rest of the card was successfully probed. Fix the problem by changing the machine driver add_dai_link() to not return an error in this case. Fixes: cbc7a6b5a87a ("ASoC: soc-card: add snd_soc_card_add_dai_link()") Signed-off-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx> Reviewed-by: Rander Wang <rander.wang@xxxxxxxxxxxxxxx> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@xxxxxxxxxxxxxxx> BugLink: https://github.com/thesofproject/linux/issues/2261 Link: https://lore.kernel.org/r/20200714132804.3638221-1-kai.vehmanen@xxxxxxxxxxxxxxx Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/sound/soc/intel/boards/skl_hda_dsp_common.h b/sound/soc/intel/boards/skl_hda_dsp_common.h index 507750ef67f30..4b0b3959182e5 100644 --- a/sound/soc/intel/boards/skl_hda_dsp_common.h +++ b/sound/soc/intel/boards/skl_hda_dsp_common.h @@ -33,6 +33,7 @@ struct skl_hda_private { int dai_index; const char *platform_name; bool common_hdmi_codec_drv; + bool idisp_codec; }; extern struct snd_soc_dai_link skl_hda_be_dai_links[HDA_DSP_MAX_BE_DAI_LINKS]; diff --git a/sound/soc/intel/boards/skl_hda_dsp_generic.c b/sound/soc/intel/boards/skl_hda_dsp_generic.c index 79c8947f840b9..ca4900036ead9 100644 --- a/sound/soc/intel/boards/skl_hda_dsp_generic.c +++ b/sound/soc/intel/boards/skl_hda_dsp_generic.c @@ -79,6 +79,9 @@ skl_hda_add_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *link) link->platforms->name = ctx->platform_name; link->nonatomic = 1; + if (!ctx->idisp_codec) + return 0; + if (strstr(link->name, "HDMI")) { ret = skl_hda_hdmi_add_pcm(card, ctx->pcm_count); @@ -118,19 +121,20 @@ static char hda_soc_components[30]; static int skl_hda_fill_card_info(struct snd_soc_acpi_mach_params *mach_params) { struct snd_soc_card *card = &hda_soc_card; + struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card); struct snd_soc_dai_link *dai_link; - u32 codec_count, codec_mask, idisp_mask; + u32 codec_count, codec_mask; int i, num_links, num_route; codec_mask = mach_params->codec_mask; codec_count = hweight_long(codec_mask); - idisp_mask = codec_mask & IDISP_CODEC_MASK; + ctx->idisp_codec = !!(codec_mask & IDISP_CODEC_MASK); if (!codec_count || codec_count > 2 || - (codec_count == 2 && !idisp_mask)) + (codec_count == 2 && !ctx->idisp_codec)) return -EINVAL; - if (codec_mask == idisp_mask) { + if (codec_mask == IDISP_CODEC_MASK) { /* topology with iDisp as the only HDA codec */ num_links = IDISP_DAI_COUNT + DMIC_DAI_COUNT; num_route = IDISP_ROUTE_COUNT; @@ -152,7 +156,7 @@ static int skl_hda_fill_card_info(struct snd_soc_acpi_mach_params *mach_params) num_route = ARRAY_SIZE(skl_hda_map); card->dapm_widgets = skl_hda_widgets; card->num_dapm_widgets = ARRAY_SIZE(skl_hda_widgets); - if (!idisp_mask) { + if (!ctx->idisp_codec) { for (i = 0; i < IDISP_DAI_COUNT; i++) { skl_hda_be_dai_links[i].codecs = dummy_codec; skl_hda_be_dai_links[i].num_codecs = @@ -211,6 +215,8 @@ static int skl_hda_audio_probe(struct platform_device *pdev) if (!mach) return -EINVAL; + snd_soc_card_set_drvdata(&hda_soc_card, ctx); + ret = skl_hda_fill_card_info(&mach->mach_params); if (ret < 0) { dev_err(&pdev->dev, "Unsupported HDAudio/iDisp configuration found\n"); @@ -223,7 +229,6 @@ static int skl_hda_audio_probe(struct platform_device *pdev) ctx->common_hdmi_codec_drv = mach->mach_params.common_hdmi_codec_drv; hda_soc_card.dev = &pdev->dev; - snd_soc_card_set_drvdata(&hda_soc_card, ctx); if (mach->mach_params.dmic_num > 0) { snprintf(hda_soc_components, sizeof(hda_soc_components),