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Sat, 19 Sep 2026 21:55:08 -0700 (PDT) Received: from [192.168.2.3] ([2403:581e:d87e:0:fc2d:ed31:e80e:412d]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2ddc17d712dsm16026765ad.64.2026.09.19.21.54.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 19 Sep 2026 21:55:08 -0700 (PDT) From: James Calligeros Subject: [PATCH 00/28] Add speaker and headset jack support for Apple Silicon Macs Date: Sun, 20 Sep 2026 14:53:39 +1000 Message-Id: <20260920-macaudio-v1-0-741cc20a74e5@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-B4-Tracking: v=1; b=H4sIAAAAAAAC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIzMDS0NT3dzE5MTSlMx8XWPjZMNkkzRjA5OURCWg8oKi1LTMCrBR0bEQfnF pUlZqcglIv1JtLQBCLL0xbAAAAA== X-Change-ID: 20260915-macaudio-33c1c4f304da To: =?utf-8?q?Martin_Povi=C5=A1er?= , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sven Peter , Janne Grunau , Neal Gompa , David Rhodes , Richard Fitzgerald , Jaroslav Kysela , Takashi Iwai , Ulf Hansson , Amit Kucheria , "Rafael J. Wysocki" , Lars-Peter Clausen , Vinod Koul , Matthias Brugger , AngeloGioacchino Del Regno , Shenghao Ding , Kevin Lu , Baojun Xu , Sen Wang , James Calligeros , James Schulman Cc: asahi@lists.linux.dev, linux-sound@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, patches@opensource.cirrus.com, Takashi Iwai , linux-mediatek@lists.infradead.org, =?utf-8?q?Martin_Povi=C5=A1er?= , Hector Martin , Sasha Finkelstein X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=6822; i=jcalligeros99@gmail.com; h=from:subject:message-id; bh=CFj0wXW59irlghkyjdPh8VaRRF+k+fzH58xy0dEOiyw=; b=owGbwMvMwCV2xczoYuD3ygTG02pJDFnr06V5yx5xv/43uWvHJDGm6S8k1Samr9oaOf/cZ57DC +f+vDCrvGMiC4MYF4OlmCLLhiYhj9lGbDf7RSr3wsxhZQIZIi3SwAAELAx8uYl5pUY6Rnqm2oZ6 hkY6xjpGDFycAjDVaesZ/vBV8e3vZv5ismfvufyrfV/qHs47e7ivIo4jodXY6gqv0HdGhvfyKuF nzV4Kz+j1nHm94OL6ptkiKne/cl15LKU/zXyRAicA X-Developer-Key: i=jcalligeros99@gmail.com; a=openpgp; fpr=B08212489B3206D98F1479BDD43632D151F77960 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260919_215510_843366_443AA5D2 X-CRM114-Status: GOOD ( 16.92 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Hi folks, This series finalises support for the main audio subsystem on Apple Silicon Macs. It adds a machine driver called macaudio, which is based on an RFC sent many years ago by Martin Povišer[1]. The driver uses the DPCM model to dynamically glue a backend DAI (combination of MCA ports and codecs) to a frontend PCM. While this theoretically allows us to route any backend to any frontend, this is not used in practice; the "Primary" frontend is always used for the headset codec and the "Secondary" is always used for the speakers. The audio subsystem on Apple Silicon Macs is rather complicated. The speaker arrangement is highly variable; some machines have a single mono woofer while others pull together multiple woofers and tweeters into a single stereo pair. The driver also exposes the headset jack's capture PCM. The builtin microphones on equipped Apple Silicon Macs are not handled by this driver as they are connected to the Always-On Processor (not actually always on). Many functions which are handled by firmware on other platforms must be handled by the kernel or userspace. Most notably, speaker protection is handled by speakersafetyd[2], a userspace daemon. The macaudio machine driver facilitates this by exposing a capture PCM from which the voltage and current across each speaker's voice coil can be read. Given that there are absolutely no hardware or firmware level failsafes preventing permanent damage to the fragile speakers found on these machines, the driver also implements a failsafe that will mute and lock the kcontrol of every speaker unless speakersafetyd is running. This (rather large, sorry) series is split up into logical sections: 1. Devicetree binding for the macaudio driver; 2. Minor ALSA/ASoC fixes required to drive the audio subsystem on these machines correctly; 3. Minor ALSA/ASoC API additions to facilitate the driver's integration with speakersafetyd and the insane combinatorics required to cater for such a wide array of possible setups; 4. The machine driver itself; and 5. Devicetree updates for M1 and M2 series machines. Adding the required Devicetree updates for M3 series devices would have bloated this series to an unreasonable size as they are still missing most prerequisite hardware nodes. They will be added in a future series. Regards, James [1] https://lore.kernel.org/asahi/20220606191910.16580-1-povik+lin@cutebit.org/ [2] https://github.com/AsahiLinux/speakersafetyd --- Hector Martin (6): ASoC: cs42l42: Set a faster digital ramp-up rate ASoC: apple: mca: Fix PD link double-frees alsa: pcm: Remove the qos request only if active ALSA: dmaengine: Always terminate DMA when a PCM is closed ALSA: control: Add kcontrol callbacks for lock/unlock ASoC: ops: Export snd_soc_control_matches() James Calligeros (13): ASoC: tas2764: Set up V/ISENSE on codec probe arm64: dts: apple: t8103-j274: Add speaker/headset jack nodes arm64: dts: apple: t8103-j313: Add speaker/headset jack nodes arm64: dts: apple: t8103-j293: Add speaker/headset jack nodes arm64: dts: apple: t8103-j45x: Add headset jack nodes arm64: dts: apple: t8112-j413: Add speaker/headset jack nodes arm64: dts: apple: t8112-j415: Add speaker/headset jack nodes arm64: dts: apple: t8112-j473: Add speaker/headset jack nodes arm64: dts: apple: t8112-j493: Add speaker/headset jack nodes arm64: dts: apple: t600x-j31x: Add speaker/headset jack nodes arm64: dts: apple: t600x-j375: Add speaker/headset jack nodes arm64: dts: apple: t602x-j41x: Add speaker/headset jack nodes arm64: dts: apple: t602x-j47x: Add speaker/headset jack nodes Martin Povišer (9): dt-bindings: sound: Add Apple Macs sound peripherals ASoC: cs42l42: Fix typo ALSA: Support nonatomic dmaengine PCMs ASoC: ops: Move guts out of snd_soc_limit_volume ASoC: ops: Accept patterns in snd_soc_limit_volume ASoC: ops: Introduce 'snd_soc_deactivate_kctl' ASoC: ops: Introduce 'soc_set_enum_kctl' ASoC: card: Let 'fixup_controls' return errors ASoC: apple: Add macaudio machine driver .../bindings/sound/apple,macaudio.yaml | 235 ++++ .../arm64/boot/dts/apple/t6000-j314s.dts | 5 + .../arm64/boot/dts/apple/t6000-j316s.dts | 5 + .../arm64/boot/dts/apple/t6001-j314c.dts | 5 + .../arm64/boot/dts/apple/t6001-j316c.dts | 5 + .../arm64/boot/dts/apple/t6001-j375c.dts | 5 + .../arm64/boot/dts/apple/t6002-j375d.dts | 5 + .../boot/dts/apple/t600x-j314-j316.dtsi | 128 ++ .../arm64/boot/dts/apple/t600x-j375.dtsi | 58 + .../arm64/boot/dts/apple/t6020-j414s.dts | 5 + .../arm64/boot/dts/apple/t6020-j416s.dts | 5 + .../arm64/boot/dts/apple/t6020-j474s.dts | 5 + .../arm64/boot/dts/apple/t6021-j414c.dts | 5 + .../arm64/boot/dts/apple/t6021-j416c.dts | 5 + .../arm64/boot/dts/apple/t6021-j475c.dts | 5 + .../arm64/boot/dts/apple/t6022-j475d.dts | 5 + .../boot/dts/apple/t602x-j414-j416.dtsi | 35 + .../boot/dts/apple/t602x-j474-j475.dtsi | 10 + arch/arm64/boot/dts/apple/t8103-j274.dts | 60 + arch/arm64/boot/dts/apple/t8103-j293.dts | 104 ++ arch/arm64/boot/dts/apple/t8103-j313.dts | 75 ++ arch/arm64/boot/dts/apple/t8103-j456.dts | 33 + arch/arm64/boot/dts/apple/t8103-j457.dts | 33 + arch/arm64/boot/dts/apple/t8112-j413.dts | 101 ++ arch/arm64/boot/dts/apple/t8112-j415.dts | 125 ++ arch/arm64/boot/dts/apple/t8112-j473.dts | 55 + arch/arm64/boot/dts/apple/t8112-j493.dts | 101 ++ include/sound/control.h | 7 + include/sound/cs42l42.h | 4 + include/sound/soc-card.h | 2 +- include/sound/soc.h | 8 +- sound/core/control.c | 16 +- sound/core/pcm_dmaengine.c | 37 +- sound/core/pcm_native.c | 5 +- sound/soc/apple/Kconfig | 19 + sound/soc/apple/Makefile | 4 + sound/soc/apple/macaudio.c | 1729 +++++++++++++++++++++++++ sound/soc/apple/mca.c | 16 +- sound/soc/codecs/cs42l42.c | 12 +- sound/soc/codecs/tas2764.c | 61 +- .../soc/mediatek/mt8188/mt8188-mt6359.c | 4 +- sound/soc/soc-card.c | 12 +- sound/soc/soc-core.c | 5 +- sound/soc/soc-ops.c | 182 ++- 44 files changed, 3268 insertions(+), 73 deletions(-) --- base-commit: 0e5a521109e0d2fb7ac226bd6301ec1facca1c26 change-id: 20260915-macaudio-33c1c4f304da Best regards, -- James Calligeros