From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj2-f12.google.com (mail-pj2-f12.google.com [74.125.227.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D842C3CF69F for ; Sun, 20 Sep 2026 04:56:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.227.140 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789880203; cv=none; b=GWUHa5fpm3r+g0Xof6U9X4gF/WbojhDkXEFvqdf1oUfEl8OJF2vFXyCM4JDL73X0UisHhtzh5AGFfuBVKMtd8Ya0mIE05I14hEhVZz1D8WS9MxlR0Z+XaOCq71VPr204xBn8NEtg6oiudtlLUfn8o9S+ZMqBhW8rLiESqC4zKzA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789880203; c=relaxed/simple; bh=orkI4Wz6NvKsu2dnhAfmTqfm8jAF2sqyShpaRHJbfnA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=WmgN8PBoqA1eUNJPzC4FgeibJHxzmUAMEEflJUtRLSmJgSauXQqjzK7iJaSlS4TPM+nXNXF1L1Uqe5ymsQTT/FUvtRn6AXWg5AUihulG5AQUrYOJkqgmm3JfyHLOzl3RU4CPLK/bYpb7TxVTCysjQBn1v/afFxjJnQERNxJaK40= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=I1O+5BtJ; arc=none smtp.client-ip=74.125.227.140 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="I1O+5BtJ" Received: by mail-pj2-f12.google.com with SMTP id d9443c01a7336-2d747ec6185so12088375ad.0 for ; Sat, 19 Sep 2026 21:56:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1789880201; x=1790485001; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=usgTFYno7+hAzGXo/yfuRjYlJhKU8fYfhaps2/4rD8k=; b=I1O+5BtJGUet+kpfZoO9fYMHVZ9EujvfTncIWpWdLuQL77w5slP+J/UZMNrtPjr0pM LtWPCg91+BwGyPPCQ/KqIUCZtDMK8JeKGPqtlvTBgHxKyR25ZHzu01ah/P+PcbuWInH5 qhxGAHDlRFe0IzAHiRAApKxv2tycfzqnI3gWcUGbTRztidLVeoMPAVx6n1ngYhhakiX7 4+PPkRM8z9DiA/oE6ynGKlL/2pnijbZOEGDh8ygvatMh1AirXclsol5jJ5U/y8/MQzVN RqfYb0pr86OZWux5nUTTpAhdnKfnVZU6dB7DpVYamJwIAlAv+fr4z4KRew0JSmwbP8Y+ koOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1789880201; x=1790485001; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=usgTFYno7+hAzGXo/yfuRjYlJhKU8fYfhaps2/4rD8k=; b=eBiDYzLWvLChu5OG3wQYd1KYr1bJw0xBmygvV4HbmMDdxFFO+fqFcye4NPhnYWW4c5 ymxiriE1nI9j8z8zqF50xk0GO85Jj1oBsDUtgCA8sU8BA7XXc5MzeXuAPWxiE1iVBv+J tO509OExvN/1EbeGnlibavgsSkX2bgHBI9J5Cyau6njy+WmGE0Bav+5uqy4P4xDyWOiq ciEcTKURQOmoIZaYMLXX/OrWmlsf6SjF2BzABbPfWzAfQsn1IiTUnrbv5vPjvnyViAUP HSCPfVK5Zo5A56mb0Fdpm7LxhZHpTMGpl1uHo6wpLAJzLJU0wS+WZy3OqwVZaNbPF78k vzGw== X-Forwarded-Encrypted: i=1; AKwUvBxTHMd1U4nxuGv8QJH5u2HHnPtLc8aucUAR/ZiQPQKTg5ih6r15dpyyg/b8xp/CPuurXyIxw31Y1WTFhiQ=@vger.kernel.org X-Gm-Message-State: AFuF++lm5+MXSZwRaGn/4Atx6zWs3z66X+8okXy4FUi6HQaHDCFwYztX AuMmf4s1Qpv/QNHCApemFf5L6+JPEDI57C5JHknakuMEPUxq1bMaF2G2 X-Gm-Gg: AYBFou3mzNVnNR120AQl6AalovON2H2m94oMVK0MrBJXbZRAf4JhWY71MCoBXKY8kzZ 8deUu+4PSOqsgG0cwvGKmJsuMAQ5Bqpyt4Ur3ZnKhV0tszdgAaljt01M0kuesjExy92OAk+p/sl mzEMOaiWT3+mlz7EhlCXUnQgPs5ADLdTy/RvMGrrFmNf3edkejO/TheIHmGdiDVqR5oOc22AHL7 E/SDWi0Z3W9tgonUzRgHvx3uQDULM8mGLljNGrAV0f//p7gpNbhbRNFh6M/bhl1O00czYN0P16T 59v7hXeEqBScihFwBKmu8JesWEa6vmoV2Oc3+B/f8cnLsSD2GXMMA/Ks+XosxOa0s6pqA1GszPx 4gRej6f5oH5J59CDllICfHjFE86yREr5SrPqTnqEcH7U6zkKLCt/bgzX/PbAEoMi4pIB5l6mSva 6OkRzLY6/lSMCkCNG1ktxFPPJjCcSNOL+GCo5bd/idHh6SG6hS6rpo03CHU25X85pR4TIVvb1+4 UyaJfpXpe1zBe8uSipQvGSyvuNaMvrPxIzs2B/OT4QaM2HCj5ePhVpq7pLP+fJCZ1MBHCramjd0 sg/A5VCmHp8nK8wpdsDrxrBdF08lfgmtNT8u8RhtXcBtme0= X-Received: by 2002:a17:902:e543:b0:2df:39bd:ace2 with SMTP id d9443c01a7336-2df39bdb0a4mr24798825ad.43.1789880201029; Sat, 19 Sep 2026 21:56:41 -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.64.2026.09.19.21.56.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 19 Sep 2026 21:56:40 -0700 (PDT) From: James Calligeros Date: Sun, 20 Sep 2026 14:53:49 +1000 Subject: [PATCH 10/28] ASoC: ops: Accept patterns in snd_soc_limit_volume Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20260920-macaudio-v1-10-741cc20a74e5@gmail.com> References: <20260920-macaudio-v1-0-741cc20a74e5@gmail.com> In-Reply-To: <20260920-macaudio-v1-0-741cc20a74e5@gmail.com> 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 X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2816; i=jcalligeros99@gmail.com; h=from:subject:message-id; bh=giyxcaB7oPKDW7kHY6FxQFJhi2IQzFYLV+w/nh4sO8E=; b=owGbwMvMwCV2xczoYuD3ygTG02pJDFnr0xV+HF2p1seUK7lhz+75Sy6XKnK6zLlreVYmbF3Bm QOajkLxHRNZGMS4GCzFFFk2NAl5zDZiu9kvUrkXZg4rE8gQaZEGBiBgYeDLTcwrNdIx0jPVNtQz NNIx1jFi4OIUgKleG8TI8CqdbbN2+S/VoCAT3nVMDvGZ86ZkRsz6OD1eZoq/ovrURYwMV95umc5 m67PbWbG0nuv1Qp6aIJtzX5z1bYVeT724eGMZPwA= X-Developer-Key: i=jcalligeros99@gmail.com; a=openpgp; fpr=B08212489B3206D98F1479BDD43632D151F77960 From: Martin Povišer In snd_soc_limit_volume, instead of looking up a single control by name, also understand wildcard-starting patterns like '* Amp Gain Volume' to touch many controls at one. Signed-off-by: Martin Povišer Signed-off-by: James Calligeros --- sound/soc/soc-ops.c | 51 ++++++++++++++++++++++--- 1 file changed, 45 insertions(+), 6 deletions(-) diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c index e572b05840b4..2f91ee7946bb 100644 --- a/sound/soc/soc-ops.c +++ b/sound/soc/soc-ops.c @@ -403,6 +403,29 @@ int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, } EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx); +static bool soc_control_matches(struct snd_kcontrol *kctl, + const char *pattern) +{ + const char *name = kctl->id.name; + + if (pattern[0] == '*') { + int namelen; + int patternlen; + + pattern++; + if (pattern[0] == ' ') + pattern++; + + namelen = strlen(name); + patternlen = strlen(pattern); + + if (namelen > patternlen) + name += namelen - patternlen; + } + + return !strcmp(name, pattern); +} + static int snd_soc_clip_to_platform_max(struct snd_kcontrol *kctl) { struct soc_mixer_control *mc = (struct soc_mixer_control *)kctl->private_value; @@ -445,31 +468,47 @@ static int soc_limit_volume(struct snd_kcontrol *kctl, int max) } /** - * snd_soc_limit_volume - Set new limit to an existing volume control. + * snd_soc_limit_volume - Set new limit to existing volume controls. * * @card: where to look for the control - * @name: Name of the control + * @name: name pattern * @max: new maximum limit * - * Return 0 for success, else error. + * Finds controls matching the given name (which can be either a name + * verbatim, or a pattern starting with the wildcard '*') and sets + * a platform volume limit on them. + * + * Return number of matching controls on success, else error. At least + * one control needs to match the pattern. */ int snd_soc_limit_volume(struct snd_soc_card *card, const char *name, int max) { struct snd_kcontrol *kctl; + int hits = 0; + int ret; /* Sanity check for name */ if (unlikely(!name)) return -EINVAL; - kctl = snd_soc_card_get_kcontrol(card, name); - if (!kctl) { + list_for_each_entry(kctl, &card->snd_card->controls, list) { + if (!soc_control_matches(kctl, name)) + continue; + + ret = soc_limit_volume(kctl, max); + if (ret < 0) + return ret; + hits++; + } + + if (!hits) { /* Some cards blindly add limits for multiple variants. */ dev_dbg(card->dev, "Volume limit for unknown control '%s'\n", name); return -EINVAL; } - return soc_limit_volume(kctl, max); + return hits; } EXPORT_SYMBOL_GPL(snd_soc_limit_volume); -- 2.55.0