From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f172.google.com (mail-pl1-f172.google.com [209.85.214.172]) (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 0E61943AA4 for ; Sat, 15 Feb 2025 00:04:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739577871; cv=none; b=LEhfMs2KvpGYzZTeZpqPUyb6w0Z5r36o4KoMZTe2Cpm0hlmImFLbkiiuRuLWt1ocDjvyHpi+xV/Qg53wcvmlbH427JscRSgh+I+AeiTLKIUlbXPGpcC4qOWlfTUGl/Z1wzx80CMXLKk1B4wFV8PETCgqtJCJFpEaWmgZ4el3dXs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739577871; c=relaxed/simple; bh=pIT8fa7AikE5hQoNF7uQQTf0quqyppsCvMu4hB34kEc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=LGx76S7UQehVx8jA5j27Rx+i2+9C5n5bDON3qMrd3s2JIJIuqjDhiUEB2L/oKsLaVQBPVvdI5KlxP0XdJb+ymyDjp5Av1Igm1hw/g0jMJPny5VNWD4u9hC+uon21M8IEJCKVTvEzCV7ekHAlrUuaoYR9rdDDIh8rJ2/4LCMKnmw= 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=He2v/wD1; arc=none smtp.client-ip=209.85.214.172 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="He2v/wD1" Received: by mail-pl1-f172.google.com with SMTP id d9443c01a7336-220bff984a0so46097755ad.3 for ; Fri, 14 Feb 2025 16:04:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1739577869; x=1740182669; darn=lists.linux.dev; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=MCWqE63NtboLaDF6y6v1iT2JtwVZeKCpz8kd6RHpgE8=; b=He2v/wD1JB0DTf8jR3qD56cJvMan/758Pu3P/jem32qwp2E4XRkh4/Q0W3D0sMv9Da wwm+RPdyblg0H0sLRwujbB3BBH+PS5bZcMUOhICC3Al+FUDo+QRKMol31eP5VGekgSlr NSFlcmkxqjgQapwlm+QsfmatKjQCkic8nPGNB5TrzxUuMpt1Jh10RZe44n1WW0g0bLNt eVmAyb29X6lq9TX/0g7LTEnkU2cmlTRAwsia0l8nGOqddFr81OHndOrlAsNJzIuecR4P R6laGgBp65IAC0dZnHJJOu1eshCyiKHRmZGJzKrb5mD0Y3KwM//KjxpJ4DX6K4FsnzOQ 8uBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1739577869; x=1740182669; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=MCWqE63NtboLaDF6y6v1iT2JtwVZeKCpz8kd6RHpgE8=; b=iYPTf6izsM4HVf0BSSW9XeL4pkueveLfsNp2lWQHn0ktPxThMRQbd8S7r3diWO9epj culpLibmM+03paCpGb5n1Vzd6u3RZwADZzkIA0VUcq/3n3pXRkju+2TUEC0nlpcXXCAM zFHQ33mcsHGlGNsl1/Emq8BgdpyY51bLCY+6WsDGVtvBAUYOrj8hGUUwWW38op8PwWf7 KhuO/+fFAxQB2gBpzLYQdGPCaL8x1QGdf91zLTXiBNZUBantfFpNAWH2Dbz2PfigSgfI 11x5jZnDbNxv+nEaCXnxjqA75ZKEaeeqR7nFbU2yZNy6S2glthci80P+VMnf7bOgPdUM EiHw== X-Forwarded-Encrypted: i=1; AJvYcCXZo/GJOlJe0rVX3DY9v/GAkry5U0iPpMRae8inZD8V7esLWJ11D4RHxWutf5J3G3llpOqhcQ==@lists.linux.dev X-Gm-Message-State: AOJu0Yz5Cf8Mw3HVIkbqd4d8zwFhrR8GFcTyml/9IUg6cX1YrGz67yZL bdOnXbVgCPpSzSde4KNoDasTGcHsn9Con5kKJhJKAVYcj9awS95Q X-Gm-Gg: ASbGncuBHpGoY11x+frWYjLdAmZzUZXn++65QpfWA7fklztVVHN6PZ2HpB3/vWHSxp3 w7n4chHErUTWkacIxMHGbdHnzLwWiHXaJHPTRxsZUDY3A80lxQP923OWiBn4T3UcDn7NyXYm70B TFRrNba/nCuYsDsTs4BmzRQg/0nGLX/kibrn7hayyJo1u5zpLRbpU71iNUP0rxmKdZc9txqEDQn H5LMXzc++SLrtAKj5I+3dWMqLjTk7Pgw8PBuVEFt3A6n3Z9KiJgpumrVxzQ98/xNsDj03nO10US 0eh7tyEHqrLmLS51KEoeAqRXpoHFEvL6sR0jzwwgpSVZRINOOmVRmJ6VDxmxB/yLFVHM2Bp2llr A8b5ud9tU6w== X-Google-Smtp-Source: AGHT+IFzYjLPU53Ebp4mx4orGbzMQ0X4WS3WUntmgSSj9qzkpka8VWRb3IebUhrznWCYrQjGNWVL5g== X-Received: by 2002:a17:902:ecc6:b0:21f:617a:f1b2 with SMTP id d9443c01a7336-221040bf7e5mr16193365ad.46.1739577869208; Fri, 14 Feb 2025 16:04:29 -0800 (PST) Received: from [192.168.2.3] (2403-580a-80ed-0-4835-5a07-49e7-f115.ip6.aussiebb.net. [2403:580a:80ed:0:4835:5a07:49e7:f115]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-220f26ea127sm15071155ad.96.2025.02.14.16.04.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 Feb 2025 16:04:28 -0800 (PST) From: James Calligeros Date: Sat, 15 Feb 2025 10:02:44 +1000 Subject: [PATCH 11/27] ASoC: tas2770: Export 'die_temp' to sysfs Precedence: bulk X-Mailing-List: asahi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20250215-apple-codec-changes-v1-11-723569b21b19@gmail.com> References: <20250215-apple-codec-changes-v1-0-723569b21b19@gmail.com> In-Reply-To: <20250215-apple-codec-changes-v1-0-723569b21b19@gmail.com> To: Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Shenghao Ding , Kevin Lu , Baojun Xu , Dan Murphy , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shi Fu Cc: Alyssa Rosenzweig , =?utf-8?q?Martin_Povi=C5=A1er?= , Hector Martin , linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, asahi@lists.linux.dev, James Calligeros X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=3064; i=jcalligeros99@gmail.com; h=from:subject:message-id; bh=fru2c8FvUJxKC1tULT0SmQ2VuwwPHfRZtkjpK3J6OcE=; b=owGbwMvMwCV2xczoYuD3ygTG02pJDOnrb25TL/T4fO240YGOXIeakAqmtyxG52YdWzNF+IOs5 EKzrJ7EjlIWBjEuBlkxRZYNTUIes43YbvaLVO6FmcPKBDKEgYtTACYSrsDw32en6bkDQfkXdl1W uMa6QPe0w04jR965F74daG7by+DxIo6R4Sfjm+mG0kKHNuQ2LZ1YFnIjMPz/vUOpSWd/CCTPXXX OkhEA X-Developer-Key: i=jcalligeros99@gmail.com; a=openpgp; fpr=B08212489B3206D98F1479BDD43632D151F77960 From: Martin Povišer Export a file for the readout of die temperature measurements. As per the datasheet, the temperature can be calculated by dividing the register value by 16 and then subtracting 93. Signed-off-by: Martin Povišer Signed-off-by: James Calligeros --- sound/soc/codecs/tas2770.c | 57 +++++++++++++++++++++++++ 1 file changed, 57 insertions(+) diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c index 35a4d5a4a3e0cf4f71f81fd59f44f075c59cdbc1..9f3588ec117bb8ed0a6f2bbe5d7dc422862f052b 100644 --- a/sound/soc/codecs/tas2770.c +++ b/sound/soc/codecs/tas2770.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -491,6 +492,51 @@ static struct snd_soc_dai_driver tas2770_dai_driver[] = { }, }; +static int tas2770_read_die_temp(struct tas2770_priv *tas2770, int *result) +{ + int ret, reading; + + ret = snd_soc_component_read(tas2770->component, TAS2770_TEMP_MSB); + if (ret < 0) + return ret; + reading = ret << 4; + + ret = snd_soc_component_read(tas2770->component, TAS2770_TEMP_LSB); + if (ret < 0) + return ret; + reading |= ret >> 4; + + /* + * As per datasheet: divide register by 16 and subtract 93. We don't + * want to divide just yet though. + */ + *result = reading - (93 * 16); + return 0; +} + +static ssize_t die_temp_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct tas2770_priv *tas2770 = i2c_get_clientdata(to_i2c_client(dev)); + int ret, temp; + + ret = tas2770_read_die_temp(tas2770, &temp); + + if (ret < 0) + return ret; + + return sysfs_emit(buf, "%d.%03d C\n", temp / 16, + (temp * 1000 / 16) % 1000); +} + +static DEVICE_ATTR_RO(die_temp); + +static struct attribute *tas2770_sysfs_attrs[] = { + &dev_attr_die_temp.attr, + NULL +}; +ATTRIBUTE_GROUPS(tas2770_sysfs); + static const struct regmap_config tas2770_i2c_regmap; static int tas2770_codec_probe(struct snd_soc_component *component) @@ -517,9 +563,19 @@ static int tas2770_codec_probe(struct snd_soc_component *component) return ret; } + ret = sysfs_create_groups(&component->dev->kobj, tas2770_sysfs_groups); + + if (ret < 0) + return ret; + return 0; } +static void tas2770_codec_remove(struct snd_soc_component *component) +{ + sysfs_remove_groups(&component->dev->kobj, tas2770_sysfs_groups); +} + static DECLARE_TLV_DB_SCALE(tas2770_digital_tlv, 1100, 50, 0); static DECLARE_TLV_DB_SCALE(tas2770_playback_volume, -12750, 50, 0); @@ -532,6 +588,7 @@ static const struct snd_kcontrol_new tas2770_snd_controls[] = { static const struct snd_soc_component_driver soc_component_driver_tas2770 = { .probe = tas2770_codec_probe, + .remove = tas2770_codec_remove, .suspend = tas2770_codec_suspend, .resume = tas2770_codec_resume, .controls = tas2770_snd_controls, -- 2.48.1