February 2023 - Alsa-devel - mailman.alsa-project.org

[PATCH] ASoC: Intel: bytcr_rt5640: Add quirk for the Acer Iconia One 7 B1-750
by Hans de Goede 17 Feb '23

17 Feb '23

The Acer Iconia One 7 B1-750 tablet mostly works fine with the defaults for an Bay Trail CR tablet. Except for the internal mic, instead of an analog mic on IN3 a digital mic on DMIC1 is uses. Add a quirk with these settings for this tablet. Signed-off-by: Hans de Goede <hdegoede(a)redhat.com> --- sound/soc/intel/boards/bytcr_rt5640.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index 79e0039c79a3..5a12940ef907 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -533,6 +533,18 @@ static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream, /* Please keep this list alphabetically sorted */ static const struct dmi_system_id byt_rt5640_quirk_table[] = { + { /* Acer Iconia One 7 B1-750 */ + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Insyde"), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "VESPA2"), + }, + .driver_data = (void *)(BYT_RT5640_DMIC1_MAP | + BYT_RT5640_JD_SRC_JD1_IN4P | + BYT_RT5640_OVCD_TH_1500UA | + BYT_RT5640_OVCD_SF_0P75 | + BYT_RT5640_SSP0_AIF1 | + BYT_RT5640_MCLK_EN), + }, { /* Acer Iconia Tab 8 W1-810 */ .matches = { DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"), -- 2.39.1

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[PATCH] skl-topology_3627: using sprintf changed to snprintf
by Natalia Petrova 17 Feb '23

17 Feb '23

Use snprintf instead of sprintf to avoid buffer overflow. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 2d744ecf2b98 ("ASoC: Intel: Skylake: Automatic DMIC format configuration according to information from NHLT") Signed-off-by: Natalia Petrova <n.petrova(a)fintech.ru> --- sound/soc/intel/skylake/skl-topology.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c index e06eac592da1..ac06926e651d 100644 --- a/sound/soc/intel/skylake/skl-topology.c +++ b/sound/soc/intel/skylake/skl-topology.c @@ -3660,7 +3660,7 @@ static int skl_tplg_complete(struct snd_soc_component *component) se = (struct soc_enum *)kcontrol->private_value; texts = dobj->control.dtexts; - sprintf(chan_text, "c%d", mach->mach_params.dmic_num); + snprintf(chan_text, sizeof(chan_text), "c%d", mach->mach_params.dmic_num); for (i = 0; i < se->items; i++) { if (strstr(texts[i], chan_text)) { -- 2.34.1

1 0

[PATCH v2 0/9] Refactor Vangogh acp5x machine driver
by Lucas Tanure 17 Feb '23

17 Feb '23

Provide small fixes and refactor the code for easier insertion of a new platform using the same acp5x machine driver. Changes since V1: - Don't use smaller variable names - Don't use 100 limit for all lines - Use component prefixes to avoid collisions - Improved commit messages Lucas Tanure (9): ASoC: amd: vangogh: Remove unnecessary init function ASoC: amd: vangogh: Small code refactor ASoC: amd: vangogh: use sizeof of variable instead of struct type ASoC: amd: vangogh: remove unnecessarily included headers ASoC: amd: vangogh: use for_each_rtd_components instead of for ASoC: amd: vangogh: Check Bit Clock rate before snd_soc_dai_set_pll ASoC: amd: vangogh: Move nau8821 and CPU side code up for future platform ASoC: amd: vangogh: Centralize strings definition ASoC: amd: vangogh: Add components prefix in structs and function names sound/soc/amd/vangogh/acp5x-mach.c | 297 ++++++++++++++--------------- 1 file changed, 144 insertions(+), 153 deletions(-) -- 2.39.2

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[PATCH 0/3] ASoC: mchp-pdmc: fix poc noises when starting capture
by Claudiu Beznea 17 Feb '23

17 Feb '23

To start capture on Microchip PDMC the enable bits for each supported microphone need to be set. After this bit is set the PDMC starts to receive data from microphones and it considers this data as valid data. Thus if microphones are not ready the PDMC captures anyway data from its lines. This data is interpreted by the human ear as poc noises. To avoid this the following software workaround need to be applied when starting capture: 1/ enable PDMC channel 2/ wait 150ms 3/ execute 16 dummy reads from RHR 4/ clear interrupts 5/ enable interrupts 6/ enable DMA channel For this workaround to work step 6 need to be executed at the end. For step 6 was added patch 1/3 from this series. With this, driver sets its struct snd_dmaengine_pcm_config::start_dma_last = 1 and proper action is taken based on this flag when starting DAI trigger vs DMA. The other solution that was identified for this was to extend the already existing mechanism around struct snd_soc_dai_link::stop_dma_first. The downside of this was that a potential struct snd_soc_dai_link::start_dma_last would have to be populated on sound card driver thus, had to be taken into account in all sound card drivers. At the moment, the mchp-pdmc is used only with simple-audio-card. In case of simple-audio-card a new DT binding would had to be introduced to specify this action on dai-link descriptions (as of my investigation). Please advice what might be the best approach. Thank you, Claudiu Beznea Claudiu Beznea (3): ASoC: soc-generic-dmaengine-pcm: add option to start DMA after DAI ASoC: dt-bindings: sama7g5-pdmc: add microchip,startup-delay-us binding ASoC: mchp-pdmc: fix poc noise at capture startup .../sound/microchip,sama7g5-pdmc.yaml | 6 ++ include/sound/dmaengine_pcm.h | 1 + include/sound/soc-component.h | 2 + sound/soc/atmel/mchp-pdmc.c | 55 +++++++++++++++++-- sound/soc/soc-generic-dmaengine-pcm.c | 8 ++- sound/soc/soc-pcm.c | 27 +++++++-- 6 files changed, 86 insertions(+), 13 deletions(-) -- 2.34.1

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[PATCH] ASoC: nau8821: Implement DRC controls
by Seven Lee 17 Feb '23

17 Feb '23

This patch is support dynamic range compression controls. Signed-off-by: Seven Lee <wtli(a)nuvoton.com> Signed-off-by: Seven Lee <scott6986(a)gmail.com> --- sound/soc/codecs/nau8821.c | 96 ++++++++++++++++++++++++++++++++++++++ sound/soc/codecs/nau8821.h | 23 +++++++++ 2 files changed, 119 insertions(+) diff --git a/sound/soc/codecs/nau8821.c b/sound/soc/codecs/nau8821.c index 4a72b94e8410..fee970427a24 100644 --- a/sound/soc/codecs/nau8821.c +++ b/sound/soc/codecs/nau8821.c @@ -322,12 +322,92 @@ static const struct soc_enum nau8821_dac_oversampl_enum = SOC_ENUM_SINGLE(NAU8821_R2C_DAC_CTRL1, NAU8821_DAC_OVERSAMPLE_SFT, ARRAY_SIZE(nau8821_dac_oversampl), nau8821_dac_oversampl); +static const char * const nau8821_adc_drc_noise_gate[] = { + "1:1", "2:1", "4:1", "8:1" }; + +static const struct soc_enum nau8821_adc_drc_noise_gate_enum = + SOC_ENUM_SINGLE(NAU8821_R38_ADC_DRC_SLOPES, NAU8821_DRC_NG_SLP_ADC_SFT, + ARRAY_SIZE(nau8821_adc_drc_noise_gate), + nau8821_adc_drc_noise_gate); + +static const char * const nau8821_adc_drc_expansion_slope[] = { + "1:1", "2:1", "4:1" }; + +static const struct soc_enum nau8821_adc_drc_expansion_slope_enum = + SOC_ENUM_SINGLE(NAU8821_R38_ADC_DRC_SLOPES, NAU8821_DRC_EXP_SLP_ADC_SFT, + ARRAY_SIZE(nau8821_adc_drc_expansion_slope), + nau8821_adc_drc_expansion_slope); + +static const char * const nau8821_adc_drc_lower_region[] = { + "0", "1:2", "1:4", "1:8", "1:16", "", "", "1:1" }; + +static const struct soc_enum nau8821_adc_drc_lower_region_enum = + SOC_ENUM_SINGLE(NAU8821_R38_ADC_DRC_SLOPES, + NAU8821_DRC_CMP2_SLP_ADC_SFT, + ARRAY_SIZE(nau8821_adc_drc_lower_region), + nau8821_adc_drc_lower_region); + +static const char * const nau8821_higher_region[] = { + "0", "1:2", "1:4", "1:8", "1:16", "", "", "1:1" }; + +static const struct soc_enum nau8821_higher_region_enum = + SOC_ENUM_SINGLE(NAU8821_R38_ADC_DRC_SLOPES, + NAU8821_DRC_CMP1_SLP_ADC_SFT, + ARRAY_SIZE(nau8821_higher_region), + nau8821_higher_region); + +static const char * const nau8821_limiter_slope[] = { + "0", "1:2", "1:4", "1:8", "1:16", "1:32", "1:64", "1:1" }; + +static const struct soc_enum nau8821_limiter_slope_enum = + SOC_ENUM_SINGLE(NAU8821_R38_ADC_DRC_SLOPES, + NAU8821_DRC_LMT_SLP_ADC_SFT, ARRAY_SIZE(nau8821_limiter_slope), + nau8821_limiter_slope); + +static const char * const nau8821_detection_attack_time[] = { + "Ts", "3Ts", "7Ts", "15Ts", "31Ts", "63Ts", "127Ts", "255Ts", + "", "511Ts" }; + +static const struct soc_enum nau8821_detection_attack_time_enum = + SOC_ENUM_SINGLE(NAU8821_R39_ADC_DRC_ATKDCY, + NAU8821_DRC_PK_COEF1_ADC_SFT, + ARRAY_SIZE(nau8821_detection_attack_time), + nau8821_detection_attack_time); + +static const char * const nau8821_detection_release_time[] = { + "63Ts", "127Ts", "255Ts", "511Ts", "1023Ts", "2047Ts", "4095Ts", + "8191Ts", "", "16383Ts" }; + +static const struct soc_enum nau8821_detection_release_time_enum = + SOC_ENUM_SINGLE(NAU8821_R39_ADC_DRC_ATKDCY, + NAU8821_DRC_PK_COEF2_ADC_SFT, + ARRAY_SIZE(nau8821_detection_release_time), + nau8821_detection_release_time); + +static const char * const nau8821_attack_time[] = { + "Ts", "3Ts", "7Ts", "15Ts", "31Ts", "63Ts", "127Ts", "255Ts", + "511Ts", "1023Ts", "2047Ts", "4095Ts", "8191Ts" }; + +static const struct soc_enum nau8821_attack_time_enum = + SOC_ENUM_SINGLE(NAU8821_R39_ADC_DRC_ATKDCY, NAU8821_DRC_ATK_ADC_SFT, + ARRAY_SIZE(nau8821_attack_time), nau8821_attack_time); + +static const char * const nau8821_decay_time[] = { + "63Ts", "127Ts", "255Ts", "511Ts", "1023Ts", "2047Ts", "4095Ts", + "8191Ts", "16383Ts", "32757Ts", "65535Ts" }; + +static const struct soc_enum nau8821_decay_time_enum = + SOC_ENUM_SINGLE(NAU8821_R39_ADC_DRC_ATKDCY, NAU8821_DRC_DCY_ADC_SFT, + ARRAY_SIZE(nau8821_decay_time), nau8821_decay_time); + static const DECLARE_TLV_DB_MINMAX_MUTE(adc_vol_tlv, -6600, 2400); static const DECLARE_TLV_DB_MINMAX_MUTE(sidetone_vol_tlv, -4200, 0); static const DECLARE_TLV_DB_MINMAX(hp_vol_tlv, -900, 0); static const DECLARE_TLV_DB_SCALE(playback_vol_tlv, -6600, 50, 1); static const DECLARE_TLV_DB_MINMAX(fepga_gain_tlv, -100, 3600); static const DECLARE_TLV_DB_MINMAX_MUTE(crosstalk_vol_tlv, -7000, 2400); +static const DECLARE_TLV_DB_MINMAX(drc_knee4_tlv, -9800, -3500); +static const DECLARE_TLV_DB_MINMAX(drc_knee3_tlv, -8100, -1800); static const struct snd_kcontrol_new nau8821_controls[] = { SOC_DOUBLE_TLV("Mic Volume", NAU8821_R35_ADC_DGAIN_CTRL1, @@ -346,6 +426,22 @@ static const struct snd_kcontrol_new nau8821_controls[] = { SOC_DOUBLE_TLV("Headphone Crosstalk Volume", NAU8821_R2F_DAC_DGAIN_CTRL, 0, 8, 0xff, 0, crosstalk_vol_tlv), + SOC_SINGLE_TLV("ADC DRC KNEE4", NAU8821_R37_ADC_DRC_KNEE_IP34, + NAU8821_DRC_KNEE4_IP_ADC_SFT, 0x3f, 1, drc_knee4_tlv), + SOC_SINGLE_TLV("ADC DRC KNEE3", NAU8821_R37_ADC_DRC_KNEE_IP34, + NAU8821_DRC_KNEE3_IP_ADC_SFT, 0x3f, 1, drc_knee3_tlv), + + SOC_ENUM("ADC DRC Noise Gate", nau8821_adc_drc_noise_gate_enum), + SOC_ENUM("ADC DRC Expansion Slope", nau8821_adc_drc_expansion_slope_enum), + SOC_ENUM("ADC DRC Lower Region", nau8821_adc_drc_lower_region_enum), + SOC_ENUM("ADC DRC Higher Region", nau8821_higher_region_enum), + SOC_ENUM("ADC DRC Limiter Slope", nau8821_limiter_slope_enum), + SOC_ENUM("ADC DRC Peak Detection Attack Time", nau8821_detection_attack_time_enum), + SOC_ENUM("ADC DRC Peak Detection Release Time", nau8821_detection_release_time_enum), + SOC_ENUM("ADC DRC Attack Time", nau8821_attack_time_enum), + SOC_ENUM("ADC DRC Decay Time", nau8821_decay_time_enum), + SOC_SINGLE("DRC Enable Switch", NAU8821_R36_ADC_DRC_KNEE_IP12, + NAU8821_DRC_ENA_ADC_SFT, 1, 0), SOC_ENUM("ADC Decimation Rate", nau8821_adc_decimation_enum), SOC_ENUM("DAC Oversampling Rate", nau8821_dac_oversampl_enum), diff --git a/sound/soc/codecs/nau8821.h b/sound/soc/codecs/nau8821.h index c44251f54d48..d962293c218e 100644 --- a/sound/soc/codecs/nau8821.h +++ b/sound/soc/codecs/nau8821.h @@ -350,6 +350,29 @@ #define NAU8821_ADCL_CH_VOL_SFT 0 #define NAU8821_ADCL_CH_VOL_MASK 0xff +/* ADC_DRC_KNEE_IP12 (0x36) */ +#define NAU8821_DRC_ENA_ADC_SFT 15 +#define NAU8821_DRC_ENA_ADC_EN (0x1 << NAU8821_DRC_ENA_ADC_SFT) + +/* ADC_DRC_KNEE_IP34 (0x37) */ +#define NAU8821_DRC_KNEE4_IP_ADC_SFT 8 +#define NAU8821_DRC_KNEE4_IP_ADC_MASK (0xff << NAU8821_DRC_KNEE4_IP_ADC_SFT) +#define NAU8821_DRC_KNEE3_IP_ADC_SFT 0 +#define NAU8821_DRC_KNEE3_IP_ADC_MASK 0xff + +/* ADC_DRC_SLOPES (0x38) */ +#define NAU8821_DRC_NG_SLP_ADC_SFT 12 +#define NAU8821_DRC_EXP_SLP_ADC_SFT 9 +#define NAU8821_DRC_CMP2_SLP_ADC_SFT 6 +#define NAU8821_DRC_CMP1_SLP_ADC_SFT 3 +#define NAU8821_DRC_LMT_SLP_ADC_SFT 0 + +/* ADC_DRC_ATKDCY (0x39) */ +#define NAU8821_DRC_PK_COEF1_ADC_SFT 12 +#define NAU8821_DRC_PK_COEF2_ADC_SFT 8 +#define NAU8821_DRC_ATK_ADC_SFT 4 +#define NAU8821_DRC_DCY_ADC_SFT 0 + /* BIQ1_COF10 (0x4a) */ #define NAU8821_BIQ1_DAC_EN_SFT 3 #define NAU8821_BIQ1_DAC_EN_EN (0x1 << NAU8821_BIQ1_DAC_EN_SFT) -- 2.25.1

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[GIT PULL] ASoC fixes for v6.2-rc8-2
by Mark Brown 17 Feb '23

17 Feb '23

The following changes since commit c173ee5b2fa6195066674d66d1d7e191010fb1ff: ASoC: topology: Return -ENOMEM on memory allocation failure (2023-02-07 14:06:26 +0000) are available in the Git repository at: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git tags/asoc-fix-v6.2-rc8-2 for you to fetch changes up to 1f810d2b6b2fbdc5279644d8b2c140b1f7c9d43d: ASoC: SOF: Intel: hda-dai: fix possible stream_tag leak (2023-02-16 16:31:15 +0000) ---------------------------------------------------------------- ASoC: One more fix for v6.2 One more fix from Peter which he'd very much like to get into v6.2. ---------------------------------------------------------------- Pierre-Louis Bossart (1): ASoC: SOF: Intel: hda-dai: fix possible stream_tag leak Rander Wang (1): ASoC: SOF: ops: refine parameters order in function snd_sof_dsp_update8 sound/soc/sof/intel/hda-dai.c | 8 ++++---- sound/soc/sof/ops.h | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-)

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[PATCH] ASoC: mediatek: mt8186: Use devm_platform_ioremap_resource()
by ye.xingchen＠zte.com.cn 17 Feb '23

17 Feb '23

From: Ye Xingchen <ye.xingchen(a)zte.com.cn> Convert platform_get_resource(), devm_ioremap_resource() to a single call to Use devm_platform_ioremap_resource(), as this is exactly what this function does. Signed-off-by: Ye Xingchen <ye.xingchen(a)zte.com.cn> --- sound/soc/mediatek/mt8186/mt8186-afe-pcm.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c b/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c index 41172a82103e..96be444d1000 100644 --- a/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c +++ b/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c @@ -2815,7 +2815,6 @@ static int mt8186_afe_pcm_dev_probe(struct platform_device *pdev) { struct mtk_base_afe *afe; struct mt8186_afe_private *afe_priv; - struct resource *res; struct reset_control *rstc; struct device *dev = &pdev->dev; int i, ret, irq_id; @@ -2836,8 +2835,7 @@ static int mt8186_afe_pcm_dev_probe(struct platform_device *pdev) afe_priv = afe->platform_priv; afe->dev = &pdev->dev; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - afe->base_addr = devm_ioremap_resource(dev, res); + afe->base_addr = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(afe->base_addr)) return PTR_ERR(afe->base_addr); -- 2.25.1

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[PATCH v2] ASoC: SOF: Intel: hda-dai: fix possible stream_tag leak
by Peter Ujfalusi 17 Feb '23

17 Feb '23

From: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> The HDaudio stream allocation is done first, and in a second step the LOSIDV parameter is programmed for the multi-link used by a codec. This leads to a possible stream_tag leak, e.g. if a DisplayAudio link is not used. This would happen when a non-Intel graphics card is used and userspace unconditionally uses the Intel Display Audio PCMs without checking if they are connected to a receiver with jack controls. We should first check that there is a valid multi-link entry to configure before allocating a stream_tag. This change aligns the dma_assign and dma_cleanup phases. Complements: b0cd60f3e9f5 ("ALSA/ASoC: hda: clarify bus_get_link() and bus_link_get() helpers") Link: https://github.com/thesofproject/linux/issues/4151 Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan(a)linux.intel.com> Reviewed-by: Rander Wang <rander.wang(a)intel.com> Reviewed-by: Bard Liao <yung-chuan.liao(a)linux.intel.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi(a)linux.intel.com> --- Hi Mark, I have added a Complements tag for now to force it follow the rename patch. I need to check how far this needs to go back and I will send a backported version later on. b0cd60f3e9f5 is in 6.2-rc Thanks, Peter sound/soc/sof/intel/hda-dai.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/sound/soc/sof/intel/hda-dai.c b/sound/soc/sof/intel/hda-dai.c index 193b3e74820a..8d9c38d562d3 100644 --- a/sound/soc/sof/intel/hda-dai.c +++ b/sound/soc/sof/intel/hda-dai.c @@ -216,6 +216,10 @@ static int hda_link_dma_hw_params(struct snd_pcm_substream *substream, sdev = snd_soc_component_get_drvdata(cpu_dai->component); bus = sof_to_bus(sdev); + hlink = snd_hdac_ext_bus_get_hlink_by_name(bus, codec_dai->component->name); + if (!hlink) + return -EINVAL; + hext_stream = snd_soc_dai_get_dma_data(cpu_dai, substream); if (!hext_stream) { hext_stream = hda_link_stream_assign(bus, substream); @@ -225,10 +229,6 @@ static int hda_link_dma_hw_params(struct snd_pcm_substream *substream, snd_soc_dai_set_dma_data(cpu_dai, substream, (void *)hext_stream); } - hlink = snd_hdac_ext_bus_get_hlink_by_name(bus, codec_dai->component->name); - if (!hlink) - return -EINVAL; - /* set the hdac_stream in the codec dai */ snd_soc_dai_set_stream(codec_dai, hdac_stream(hext_stream), substream->stream); -- 2.39.2

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[PATCH] soc:amd:yp:Add OMEN by HP Gaming Laptop 16z-n000 to quirks
by Joseph Hunkeler 17 Feb '23

17 Feb '23

Enables display microphone on the HP OMEN 16z-n000 (8A42) laptop Signed-off-by: Joseph Hunkeler <jhunkeler(a)gmail.com> --- sound/soc/amd/yc/acp6x-mach.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/soc/amd/yc/acp6x-mach.c b/sound/soc/amd/yc/acp6x-mach.c index 363147539..4e681e9c0 100644 --- a/sound/soc/amd/yc/acp6x-mach.c +++ b/sound/soc/amd/yc/acp6x-mach.c @@ -255,6 +255,13 @@ static const struct dmi_system_id yc_acp_quirk_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "15NBC1011"), } }, + { + .driver_data = &acp6x_card, + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "HP"), + DMI_MATCH(DMI_PRODUCT_NAME, "OMEN by HP Gaming Laptop 16z-n000"), + } + }, {} }; base-commit: e1c04510f521e853019afeca2a5991a5ef8d6a5b -- 2.39.1

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[PATCH] ASoC: SOF: Intel: hda-dai: fix possible stream_tag leak
by Peter Ujfalusi 17 Feb '23

17 Feb '23

From: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> The HDaudio stream allocation is done first, and in a second step the LOSIDV parameter is programmed for the multi-link used by a codec. This leads to a possible stream_tag leak, e.g. if a DisplayAudio link is not used. This would happen when a non-Intel graphics card is used and userspace unconditionally uses the Intel Display Audio PCMs without checking if they are connected to a receiver with jack controls. We should first check that there is a valid multi-link entry to configure before allocating a stream_tag. This change aligns the dma_assign and dma_cleanup phases. Link: https://github.com/thesofproject/linux/issues/4151 Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan(a)linux.intel.com> Reviewed-by: Rander Wang <rander.wang(a)intel.com> Reviewed-by: Bard Liao <yung-chuan.liao(a)linux.intel.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi(a)linux.intel.com> --- Hi Mark, is there still time to send this for v6.2? If not, then I will re-send it with stable 6.2 tag. In fact similar change should be sent to stable kernels but due to a function name change in 6.2 [1], this patch is not going to apply anything older.. [1] b0cd60f3e9f5 ("ALSA/ASoC: hda: clarify bus_get_link() and bus_link_get() helpers") Did a snd_hdac_ext_bus_get_link() -> snd_hdac_ext_bus_get_hlink_by_name() rename I'm not sure if I should add the stable tag and let the stable guys figure it out, but I feel guilty to do so... Thanks, Peter sound/soc/sof/intel/hda-dai.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/sound/soc/sof/intel/hda-dai.c b/sound/soc/sof/intel/hda-dai.c index 193b3e74820a..8d9c38d562d3 100644 --- a/sound/soc/sof/intel/hda-dai.c +++ b/sound/soc/sof/intel/hda-dai.c @@ -216,6 +216,10 @@ static int hda_link_dma_hw_params(struct snd_pcm_substream *substream, sdev = snd_soc_component_get_drvdata(cpu_dai->component); bus = sof_to_bus(sdev); + hlink = snd_hdac_ext_bus_get_hlink_by_name(bus, codec_dai->component->name); + if (!hlink) + return -EINVAL; + hext_stream = snd_soc_dai_get_dma_data(cpu_dai, substream); if (!hext_stream) { hext_stream = hda_link_stream_assign(bus, substream); @@ -225,10 +229,6 @@ static int hda_link_dma_hw_params(struct snd_pcm_substream *substream, snd_soc_dai_set_dma_data(cpu_dai, substream, (void *)hext_stream); } - hlink = snd_hdac_ext_bus_get_hlink_by_name(bus, codec_dai->component->name); - if (!hlink) - return -EINVAL; - /* set the hdac_stream in the codec dai */ snd_soc_dai_set_stream(codec_dai, hdac_stream(hext_stream), substream->stream); -- 2.39.2

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