October 2022 - Alsa-devel - mailman.alsa-project.org

[PATCH 0/2] ASoC: Add a driver for the Iron Device SMA1303 Amp
by Kiseok Jo 29 Nov '22

29 Nov '22

This adds basic audio support for the Iron Device SMA1303 amplifier. Kiseok Jo (2): ASoC: sma1303: Add driver for Iron Device SMA1303 Amp ASoC: dt-bindings: sma1303: Iron Device SMA1303 Amp .../bindings/sound/irondevice,sma1303.yaml | 40 + .../devicetree/bindings/vendor-prefixes.yaml | 2 + sound/soc/codecs/Kconfig | 7 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/sma1303.c | 2119 +++++++++++++++++ sound/soc/codecs/sma1303.h | 609 +++++ 6 files changed, 2779 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/irondevice,sma1303.yaml create mode 100644 sound/soc/codecs/sma1303.c create mode 100644 sound/soc/codecs/sma1303.h -- 2.30.2

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[PATCH 0/4] RK3588 Audio Support
by Nicolas Frattaroli 25 Nov '22

25 Nov '22

This patchset refactors the Rockchip I2S/TDM driver in order to support the RK3588 SoC, and then adds the necessary compatible string to load the driver for it. Patch 1 rectifies a problem with the bindings where we were too strict about requiring the rockchip,grf property. Most features of this audio device don't need access to the GRF to function. Patch 2 modifies the driver to adjust its behaviour to what the changed bindings now allow, namely using most things without the GRF. Patch 3 and 4 are boring compatible string stuff that enables RK3588 support. No special data is needed to initialise the driver for this instance of the I2S/TDM IP. Nicolas Frattaroli (4): ASoC: dt-bindings: rockchip: i2s-tdm: Make grf property optional ASoC: rockchip: i2s_tdm: Make the grf property optional ASoC: dt-bindings: rockchip: i2s-tdm: Add RK3588 compatible ASoC: rockchip: i2s_tdm: Add support for RK3588 .../bindings/sound/rockchip,i2s-tdm.yaml | 2 +- sound/soc/rockchip/rockchip_i2s_tdm.c | 19 ++++++++++++++----- 2 files changed, 15 insertions(+), 6 deletions(-) -- 2.38.1

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[PATCH 0/3] ASoC: adau1372: fixes after debugging custom board
by Maarten Zanders 25 Nov '22

25 Nov '22

Maarten Zanders (3): ASoC: adau1372: fix mclk ASoC: adau1372: add support for S24_LE mode ASoC: adau1372: correct PGA enable & mute bit sound/soc/codecs/adau1372.c | 31 +++++++++++++++++-------------- 1 file changed, 17 insertions(+), 14 deletions(-) base-commit: ef6747add3ad08a23a94b20db0b62688efb9ccd9 -- 2.37.3

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[alsa-devel] [PATCH 0/6] ASoC: mediatek: mt8183: support DP audio
by Tzung-Bi Shih 24 Nov '22

24 Nov '22

(This series depends on https://lore.kernel.org/patchwork/patch/1126819/ which has not applied to the maintainer's tree yet.) This series makes mt8183-mt6358-ts3a227-max98357 support DP (display port) audio output. ASoC: hdmi-codec: add PCM trigger operator - add a PCM trigger callback if codec driver is interested in PCM events. drm: bridge: it6505: bridge to hdmi-codec - add audio feature support of it6505. - bridge to hdmi-codec so that ASoC can use the audio feature. - defer the "enabling" after receiving PCM START or RESUME event. ASoC: dt-bindings: mt8183: add a property "mediatek,hdmi-codec" ASoC: mediatek: mt8183: use hdmi-codec - bind to hdmi-codec in mt8183-mt6358-ts3a227-max98357. drm: bridge: it6505: report connector status ASoC: mediatek: mt8183: support HDMI jack reporting - use the mechanism from the following patch https://mailman.alsa-project.org/pipermail/alsa-devel/2019-September/155302… to report jack status (from DRM to ASoC). Allen Chen (1): drm: bridge: it6505: bridge to hdmi-codec Tzung-Bi Shih (5): ASoC: hdmi-codec: add PCM trigger operator ASoC: dt-bindings: mt8183: add a property "mediatek,hdmi-codec" ASoC: mediatek: mt8183: use hdmi-codec drm: bridge: it6505: report connector status ASoC: mediatek: mt8183: support HDMI jack reporting .../sound/mt8183-mt6358-ts3a227-max98357.txt | 2 + drivers/gpu/drm/bridge/ite-it6505.c | 191 +++++++++++++++++- include/sound/hdmi-codec.h | 13 ++ sound/soc/codecs/hdmi-codec.c | 31 +++ sound/soc/mediatek/Kconfig | 3 +- .../mt8183/mt8183-mt6358-ts3a227-max98357.c | 36 +++- 6 files changed, 266 insertions(+), 10 deletions(-) -- 2.23.0.866.gb869b98d4c-goog

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[RESEND PATCH] ASoC: core: Exit all links before removing their components
by Cezary Rojewski 20 Nov '22

20 Nov '22

Flows leading to link->init() and link->exit() are not symmetric. Currently the relevant part of card probe sequence goes as: for_each_card_rtds(card, rtd) for_each_rtd_components(rtd, i, component) component->probe() for_each_card_rtds(card, rtd) for_each_rtd_dais(rtd, i, dai) dai->probe() for_each_card_rtds(card, rtd) rtd->init() On the other side, equivalent remove sequence goes as: for_each_card_rtds(card, rtd) for_each_rtd_dais(rtd, i, dai) dai->remove() for_each_card_rtds(card, rtd) for_each_rtd_components(rtd, i, component) component->remove() for_each_card_rtds(card, rtd) rtd->exit() what can lead to errors as link->exit() may still operate on resources owned by its components despite the probability of them being freed during the component->remove(). This change modifies the remove sequence to: for_each_card_rtds(card, rtd) rtd->exit() for_each_card_rtds(card, rtd) for_each_rtd_dais(rtd, i, dai) dai->remove() for_each_card_rtds(card, rtd) for_each_rtd_components(rtd, i, component) component->remove() so code found in link->exit() is safe to touch any component stuff as component->remove() has not been called yet. Signed-off-by: Cezary Rojewski <cezary.rojewski(a)intel.com> Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski(a)linux.intel.com> --- Original review for v1: https://lore.kernel.org/alsa-devel/20220621115758.3154933-1-cezary.rojewski… sound/soc/soc-core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 4a3fca50a536..638e781df3b0 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -935,9 +935,6 @@ void snd_soc_remove_pcm_runtime(struct snd_soc_card *card, { lockdep_assert_held(&client_mutex); - /* release machine specific resources */ - snd_soc_link_exit(rtd); - /* * Notify the machine driver for extra destruction */ @@ -1888,6 +1885,9 @@ static void soc_cleanup_card_resources(struct snd_soc_card *card) snd_soc_dapm_shutdown(card); + /* release machine specific resources */ + for_each_card_rtds(card, rtd) + snd_soc_link_exit(rtd); /* remove and free each DAI */ soc_remove_link_dais(card); soc_remove_link_components(card); -- 2.25.1

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[PATCH 0/4] ADD SOF support for rembrandt platform
by V sujith kumar Reddy 17 Nov '22

17 Nov '22

This series consists of 1.Make ACP core code generic for newer SOC transition 2.Add support for Rembrandt plaform 3.Adding amd HS functionality to the sof core 4.increase SRAM inbox and outbox size to 1024 Ajit Kumar Pandey (1): ASoC: SOF: amd: Make ACP core code generic for newer SOC transition V sujith kumar Reddy (3): ASoC: SOF: amd: Add support for Rembrandt plaform. ASoC: SOF: Adding amd HS functionality to the sof core ASoC: SOF: amd: increase SRAM inbox and outbox size to 1024 include/sound/sof/dai.h | 2 + sound/soc/sof/amd/Kconfig | 10 ++ sound/soc/sof/amd/Makefile | 4 +- sound/soc/sof/amd/acp-common.c | 111 +++++++++++++++++ sound/soc/sof/amd/acp-dsp-offset.h | 33 +++-- sound/soc/sof/amd/acp-ipc.c | 49 ++++++-- sound/soc/sof/amd/acp-loader.c | 20 +++- sound/soc/sof/amd/acp-pcm.c | 3 +- sound/soc/sof/amd/acp-stream.c | 7 +- sound/soc/sof/amd/acp.c | 52 +++++--- sound/soc/sof/amd/acp.h | 38 ++++-- sound/soc/sof/amd/pci-rmb.c | 186 +++++++++++++++++++++++++++++ sound/soc/sof/amd/pci-rn.c | 11 ++ sound/soc/sof/amd/rembrandt.c | 134 +++++++++++++++++++++ sound/soc/sof/amd/renoir.c | 101 ++-------------- sound/soc/sof/ipc3-pcm.c | 9 ++ sound/soc/sof/ipc3-topology.c | 33 +++++ sound/soc/sof/topology.c | 1 + 18 files changed, 653 insertions(+), 151 deletions(-) create mode 100644 sound/soc/sof/amd/acp-common.c create mode 100644 sound/soc/sof/amd/pci-rmb.c create mode 100644 sound/soc/sof/amd/rembrandt.c -- 2.25.1

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[PATCH 0/2] ASoC: Add a driver for the Iron Device SMA1303 Amp
by Kiseok Jo 16 Nov '22

16 Nov '22

This adds basic audio support for the Iron Device SMA1303 amplifier. Kiseok Jo (2): ASoC: sma1303: Add driver for Iron Device SMA1303 Amp ASoC: dt-bindings: sma1303: Iron Device SMA1303 Amp .../bindings/sound/irondevice,sma1303.yaml | 40 + .../devicetree/bindings/vendor-prefixes.yaml | 2 + sound/soc/codecs/Kconfig | 7 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/sma1303.c | 2119 +++++++++++++++++ sound/soc/codecs/sma1303.h | 609 +++++ 6 files changed, 2779 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/irondevice,sma1303.yaml create mode 100644 sound/soc/codecs/sma1303.c create mode 100644 sound/soc/codecs/sma1303.h -- 2.30.2

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[PATCH 00/14] ARM: remove unused davinci board & drivers
by Arnd Bergmann 14 Nov '22

14 Nov '22

From: Arnd Bergmann <arnd(a)arndb.de> As part of removing all board files that were previously marked as unused, I looked through the davinci platform and recursively removed everything that has now become unused. In particular, this is for all dm3xx support, in addition to the dm64xx support removed previously. The remaining support is now for da8xx using devicetree only, which means a lot of the da8xx specific device support can also go away. As with the previous series, I can keep patches together in the soc tree, or subsystem maintainers can pick them up individually through their subsystems, whichever they prefer. Arnd Bergmann (14): ARM: davinci: remove unused board support ARM: davinci: drop DAVINCI_DMxxx references ARM: davinci: clean up platform support clk: remove davinci dm3xx drivers usb: musb: remove unused davinci support mfd: remove dm355evm_msp driver input: remove davinci keyboard driver rtc: remove davinci rtc driver ASoC: remove unused davinci support mfd: remove davinci voicecodec driver pata: remove palmchip bk3710 driver irqchip: remove davinci aintc driver staging: media: remove davinci vpfe_capture driver media: davinci: remove vpbe support Cc: Sekhar Nori <nsekhar(a)ti.com> Cc: Bartosz Golaszewski <brgl(a)bgdev.pl> Cc: Russell King <linux(a)armlinux.org.uk> Cc: Mauro Carvalho Chehab <mchehab(a)kernel.org> Cc: Damien Le Moal <damien.lemoal(a)opensource.wdc.com> Cc: Sergey Shtylyov <s.shtylyov(a)omp.ru> Cc: David Lechner <david(a)lechnology.com> Cc: Michael Turquette <mturquette(a)baylibre.com> Cc: Stephen Boyd <sboyd(a)kernel.org> Cc: Dmitry Torokhov <dmitry.torokhov(a)gmail.com> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Marc Zyngier <maz(a)kernel.org> Cc: "Lad, Prabhakar" <prabhakar.csengg(a)gmail.com> Cc: Lee Jones <lee(a)kernel.org> Cc: Alessandro Zummo <a.zummo(a)towertech.it> Cc: Alexandre Belloni <alexandre.belloni(a)bootlin.com> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Cc: Bin Liu <b-liu(a)ti.com> Cc: Peter Ujfalusi <peter.ujfalusi(a)gmail.com> Cc: Liam Girdwood <lgirdwood(a)gmail.com> Cc: Mark Brown <broonie(a)kernel.org> Cc: Jaroslav Kysela <perex(a)perex.cz> Cc: Takashi Iwai <tiwai(a)suse.com> Cc: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com> Cc: Hans Verkuil <hverkuil-cisco(a)xs4all.nl> Cc: Yang Yingliang <yangyingliang(a)huawei.com> Cc: linux-media(a)vger.kernel.org Cc: linux-kernel(a)vger.kernel.org Cc: linux-arm-kernel(a)lists.infradead.org Cc: linux-ide(a)vger.kernel.org Cc: linux-clk(a)vger.kernel.org Cc: linux-input(a)vger.kernel.org Cc: linux-rtc(a)vger.kernel.org Cc: linux-staging(a)lists.linux.dev Cc: linux-usb(a)vger.kernel.org Cc: alsa-devel(a)alsa-project.org .../admin-guide/media/davinci-vpbe.rst | 65 - .../admin-guide/media/platform-cardlist.rst | 1 - .../admin-guide/media/v4l-drivers.rst | 1 - .../media/drivers/davinci-vpbe-devel.rst | 39 - .../driver-api/media/drivers/index.rst | 1 - MAINTAINERS | 1 - arch/arm/Kconfig.debug | 16 +- arch/arm/mach-davinci/Kconfig | 142 -- arch/arm/mach-davinci/Makefile | 18 +- arch/arm/mach-davinci/board-da830-evm.c | 690 ------ arch/arm/mach-davinci/board-da850-evm.c | 1550 -------------- arch/arm/mach-davinci/board-dm355-evm.c | 444 ---- arch/arm/mach-davinci/board-dm355-leopard.c | 278 --- arch/arm/mach-davinci/board-dm365-evm.c | 855 -------- arch/arm/mach-davinci/board-mityomapl138.c | 638 ------ arch/arm/mach-davinci/board-omapl138-hawk.c | 451 ---- arch/arm/mach-davinci/common.h | 7 +- arch/arm/mach-davinci/cputype.h | 53 - arch/arm/mach-davinci/da830.c | 274 --- arch/arm/mach-davinci/da850.c | 400 +--- arch/arm/mach-davinci/da8xx.h | 95 +- arch/arm/mach-davinci/davinci.h | 136 -- arch/arm/mach-davinci/devices-da8xx.c | 1094 ---------- arch/arm/mach-davinci/devices.c | 303 --- arch/arm/mach-davinci/dm355.c | 832 ------- arch/arm/mach-davinci/dm365.c | 1094 ---------- arch/arm/mach-davinci/mux.c | 15 - arch/arm/mach-davinci/serial.c | 92 - arch/arm/mach-davinci/serial.h | 15 - arch/arm/mach-davinci/usb-da8xx.c | 146 -- arch/arm/mach-davinci/usb.c | 87 - drivers/ata/Kconfig | 10 - drivers/ata/Makefile | 1 - drivers/ata/pata_bk3710.c | 380 ---- drivers/clk/davinci/Makefile | 4 - drivers/clk/davinci/pll-dm355.c | 77 - drivers/clk/davinci/pll-dm365.c | 146 -- drivers/clk/davinci/pll.c | 8 - drivers/clk/davinci/pll.h | 5 - drivers/clk/davinci/psc-dm355.c | 89 - drivers/clk/davinci/psc-dm365.c | 111 - drivers/clk/davinci/psc.c | 6 - drivers/clk/davinci/psc.h | 7 - drivers/input/keyboard/Kconfig | 10 - drivers/input/keyboard/Makefile | 1 - drivers/input/keyboard/davinci_keyscan.c | 315 --- drivers/input/misc/Kconfig | 11 - drivers/input/misc/Makefile | 1 - drivers/input/misc/dm355evm_keys.c | 238 --- drivers/irqchip/Kconfig | 5 - drivers/irqchip/Makefile | 1 - drivers/irqchip/irq-davinci-aintc.c | 163 -- drivers/media/platform/ti/davinci/Kconfig | 16 - drivers/media/platform/ti/davinci/Makefile | 3 - drivers/media/platform/ti/davinci/vpbe.c | 840 -------- .../media/platform/ti/davinci/vpbe_display.c | 1510 ------------- drivers/media/platform/ti/davinci/vpbe_osd.c | 1582 -------------- .../media/platform/ti/davinci/vpbe_osd_regs.h | 352 --- drivers/media/platform/ti/davinci/vpbe_venc.c | 676 ------ .../platform/ti/davinci/vpbe_venc_regs.h | 165 -- drivers/media/platform/ti/davinci/vpss.c | 529 ----- drivers/mfd/Kconfig | 13 - drivers/mfd/Makefile | 3 - drivers/mfd/davinci_voicecodec.c | 136 -- drivers/mfd/dm355evm_msp.c | 454 ---- drivers/rtc/Kconfig | 16 - drivers/rtc/Makefile | 2 - drivers/rtc/rtc-davinci.c | 512 ----- drivers/rtc/rtc-dm355evm.c | 151 -- drivers/staging/media/Kconfig | 1 - drivers/staging/media/Makefile | 1 - .../media/deprecated/vpfe_capture/Kconfig | 58 - .../media/deprecated/vpfe_capture/Makefile | 4 - .../media/deprecated/vpfe_capture/TODO | 7 - .../deprecated/vpfe_capture/ccdc_hw_device.h | 80 - .../deprecated/vpfe_capture/dm355_ccdc.c | 934 -------- .../deprecated/vpfe_capture/dm355_ccdc.h | 308 --- .../deprecated/vpfe_capture/dm355_ccdc_regs.h | 297 --- .../deprecated/vpfe_capture/dm644x_ccdc.c | 879 -------- .../deprecated/vpfe_capture/dm644x_ccdc.h | 171 -- .../vpfe_capture/dm644x_ccdc_regs.h | 140 -- .../media/deprecated/vpfe_capture/isif.c | 1127 ---------- .../media/deprecated/vpfe_capture/isif.h | 518 ----- .../media/deprecated/vpfe_capture/isif_regs.h | 256 --- .../deprecated/vpfe_capture/vpfe_capture.c | 1902 ----------------- drivers/usb/musb/Kconfig | 12 - drivers/usb/musb/Makefile | 2 - drivers/usb/musb/cppi_dma.c | 1547 -------------- drivers/usb/musb/davinci.c | 606 ------ drivers/usb/musb/davinci.h | 103 - include/linux/clk/davinci.h | 9 - include/linux/mfd/dm355evm_msp.h | 79 - include/media/davinci/vpbe.h | 184 -- include/media/davinci/vpbe_display.h | 122 -- include/media/davinci/vpbe_osd.h | 382 ---- include/media/davinci/vpbe_types.h | 74 - include/media/davinci/vpbe_venc.h | 37 - include/media/davinci/vpfe_capture.h | 177 -- include/media/davinci/vpss.h | 111 - sound/soc/ti/Kconfig | 40 - sound/soc/ti/Makefile | 2 - sound/soc/ti/davinci-evm.c | 267 +-- sound/soc/ti/davinci-vcif.c | 247 --- 103 files changed, 17 insertions(+), 29049 deletions(-) delete mode 100644 Documentation/admin-guide/media/davinci-vpbe.rst delete mode 100644 Documentation/driver-api/media/drivers/davinci-vpbe-devel.rst delete mode 100644 arch/arm/mach-davinci/board-da830-evm.c delete mode 100644 arch/arm/mach-davinci/board-da850-evm.c delete mode 100644 arch/arm/mach-davinci/board-dm355-evm.c delete mode 100644 arch/arm/mach-davinci/board-dm355-leopard.c delete mode 100644 arch/arm/mach-davinci/board-dm365-evm.c delete mode 100644 arch/arm/mach-davinci/board-mityomapl138.c delete mode 100644 arch/arm/mach-davinci/board-omapl138-hawk.c delete mode 100644 arch/arm/mach-davinci/davinci.h delete mode 100644 arch/arm/mach-davinci/devices.c delete mode 100644 arch/arm/mach-davinci/dm355.c delete mode 100644 arch/arm/mach-davinci/dm365.c delete mode 100644 arch/arm/mach-davinci/serial.c delete mode 100644 arch/arm/mach-davinci/usb-da8xx.c delete mode 100644 arch/arm/mach-davinci/usb.c delete mode 100644 drivers/ata/pata_bk3710.c delete mode 100644 drivers/clk/davinci/pll-dm355.c delete mode 100644 drivers/clk/davinci/pll-dm365.c delete mode 100644 drivers/clk/davinci/psc-dm355.c delete mode 100644 drivers/clk/davinci/psc-dm365.c delete mode 100644 drivers/input/keyboard/davinci_keyscan.c delete mode 100644 drivers/input/misc/dm355evm_keys.c delete mode 100644 drivers/irqchip/irq-davinci-aintc.c delete mode 100644 drivers/media/platform/ti/davinci/vpbe.c delete mode 100644 drivers/media/platform/ti/davinci/vpbe_display.c delete mode 100644 drivers/media/platform/ti/davinci/vpbe_osd.c delete mode 100644 drivers/media/platform/ti/davinci/vpbe_osd_regs.h delete mode 100644 drivers/media/platform/ti/davinci/vpbe_venc.c delete mode 100644 drivers/media/platform/ti/davinci/vpbe_venc_regs.h delete mode 100644 drivers/media/platform/ti/davinci/vpss.c delete mode 100644 drivers/mfd/davinci_voicecodec.c delete mode 100644 drivers/mfd/dm355evm_msp.c delete mode 100644 drivers/rtc/rtc-davinci.c delete mode 100644 drivers/rtc/rtc-dm355evm.c delete mode 100644 drivers/staging/media/deprecated/vpfe_capture/Kconfig delete mode 100644 drivers/staging/media/deprecated/vpfe_capture/Makefile delete mode 100644 drivers/staging/media/deprecated/vpfe_capture/TODO delete mode 100644 drivers/staging/media/deprecated/vpfe_capture/ccdc_hw_device.h delete mode 100644 drivers/staging/media/deprecated/vpfe_capture/dm355_ccdc.c delete mode 100644 drivers/staging/media/deprecated/vpfe_capture/dm355_ccdc.h delete mode 100644 drivers/staging/media/deprecated/vpfe_capture/dm355_ccdc_regs.h delete mode 100644 drivers/staging/media/deprecated/vpfe_capture/dm644x_ccdc.c delete mode 100644 drivers/staging/media/deprecated/vpfe_capture/dm644x_ccdc.h delete mode 100644 drivers/staging/media/deprecated/vpfe_capture/dm644x_ccdc_regs.h delete mode 100644 drivers/staging/media/deprecated/vpfe_capture/isif.c delete mode 100644 drivers/staging/media/deprecated/vpfe_capture/isif.h delete mode 100644 drivers/staging/media/deprecated/vpfe_capture/isif_regs.h delete mode 100644 drivers/staging/media/deprecated/vpfe_capture/vpfe_capture.c delete mode 100644 drivers/usb/musb/cppi_dma.c delete mode 100644 drivers/usb/musb/davinci.c delete mode 100644 drivers/usb/musb/davinci.h delete mode 100644 include/linux/mfd/dm355evm_msp.h delete mode 100644 include/media/davinci/vpbe.h delete mode 100644 include/media/davinci/vpbe_display.h delete mode 100644 include/media/davinci/vpbe_osd.h delete mode 100644 include/media/davinci/vpbe_types.h delete mode 100644 include/media/davinci/vpbe_venc.h delete mode 100644 include/media/davinci/vpfe_capture.h delete mode 100644 include/media/davinci/vpss.h delete mode 100644 sound/soc/ti/davinci-vcif.c -- 2.29.2

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missing sound on kernel-5.15
by chihhao chen 11 Nov '22

11 Nov '22

I am testing many headsets on Android platform with different kernel versions. On kernel-5.10, calling sequence for playback is 1. snd_usb_hw_params -> set highest sampling rate, no SAMPLING_FREQ_CONTROL USB request sent in this stage 2. snd_pcm_release 3. snd_usb_hw_params -> set proper sampling rate, still no SAMPLING_FREQ_CONTROL USB request 4. snd_usb_pcm_parepare -> in configure_endpoint SAMPLING_FREQ_CONTROL USB request was sent on USB bus With the same calling sequence, a slightly behavior change on kernel- 5.15 is 1. snd_usb_hw_params -> set highest sampling rate, SAMPLING_FREQ_CONTROL USB request was sent on USB bus 2. snd_pcm_release 3. snd_usb_hw_params -> set proper sampling rate, SAMPLING_FREQ_CONTROL USB request was sent too (because configure_endpoint was moved to snd_usb_hw_params function) 4. snd_usb_pcm_parepare -> no SAMPLING_FREQ_CONTROL USB request because of USB EP flag check I checked all USB packets and confirmed audio data output was correct. But there may be missing sound problem for the first sound with many headsets (for example Samsung headset). I found this issue is related to two-times sampling rate set request. (I tried to forcibly skip first USB request, everything became okay.) So do you guys know why configure_endpoint was moved to snd_usb_hw_params? Or could you provide patch for this problem? Many thanks Chihhao

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[PATCH] soundwire: intel: Initialize clock stop timeout
by Bard Liao 10 Nov '22

10 Nov '22

From: Sjoerd Simons <sjoerd(a)collabora.com> The bus->clk_stop_timeout member is only initialized to a non-zero value during the codec driver probe. This can lead to corner cases where this value remains pegged at zero when the bus suspends, which results in an endless loop in sdw_bus_wait_for_clk_prep_deprep(). Corner cases include configurations with no codecs described in the firmware, or delays in probing codec drivers. Initializing the default timeout to the smallest non-zero value avoid this problem and allows for the existing logic to be preserved: the bus->clk_stop_timeout is set as the maximum required by all codecs connected on the bus. Fixes: 1f2dcf3a154ac ("soundwire: intel: set dev_num_ida_min") Signed-off-by: Sjoerd Simons <sjoerd(a)collabora.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> Reviewed-by: Chao Song <chao.song(a)intel.com> Signed-off-by: Bard Liao <yung-chuan.liao(a)linux.intel.com> --- drivers/soundwire/intel.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index 25ec9c272239..78d35bb4852c 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -1311,6 +1311,7 @@ static int intel_link_probe(struct auxiliary_device *auxdev, bus->link_id = auxdev->id; bus->dev_num_ida_min = INTEL_DEV_NUM_IDA_MIN; + bus->clk_stop_timeout = 1; sdw_cdns_probe(cdns); -- 2.25.1

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