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[2403:580a:80ed:0:4835:5a07:49e7:f115]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-ae1ee4febb2sm787325a12.51.2025.02.18.00.37.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Feb 2025 00:37:51 -0800 (PST) From: James Calligeros Date: Tue, 18 Feb 2025 18:35:49 +1000 Subject: [PATCH v2 15/29] ASoC: tas2764: Export 'die_temp' to sysfs Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250218-apple-codec-changes-v2-15-932760fd7e07@gmail.com> References: <20250218-apple-codec-changes-v2-0-932760fd7e07@gmail.com> In-Reply-To: <20250218-apple-codec-changes-v2-0-932760fd7e07@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 , Jean Delvare , Guenter Roeck 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, linux-hwmon@vger.kernel.org, Neal Gompa , James Calligeros X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=3446; i=jcalligeros99@gmail.com; h=from:subject:message-id; bh=0a0HOe+ABXU9bHydNnLXso1NNutXczT0PDufOAOyGk0=; b=owGbwMvMwCV2xczoYuD3ygTG02pJDOlb3BKZ6i+4XXd6NP3wvjWxOwpXJwUt+aC/ar3yyptco psCDSTdO0pZGMS4GGTFFFk2NAl5zDZiu9kvUrkXZg4rE8gQBi5OAZgI3w5Ghm8e+xeuSdrCK2/m wtLw5VUKq2rAHRkv20XOvy8+4xE12cTwP8X914z2/zFHJzHeumMbsr21MrlG7LPMkZ4vU0Xmxmc zcwEA 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 subtracting the value in the register by 93. Reviewed-by: Neal Gompa Signed-off-by: Martin Povišer Signed-off-by: James Calligeros --- sound/soc/codecs/tas2764.c | 45 +++++++++++++++++++++++++ sound/soc/codecs/tas2764.h | 3 ++ 2 files changed, 48 insertions(+) diff --git a/sound/soc/codecs/tas2764.c b/sound/soc/codecs/tas2764.c index 13c7ab7ee1f7a9e1224804de034466ef8bc1bf06..b0d016f85f7fd57bec36b33db5e8c2bd242b5b94 100644 --- a/sound/soc/codecs/tas2764.c +++ b/sound/soc/codecs/tas2764.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -571,6 +572,39 @@ static int tas2764_apply_init_quirks(struct tas2764_priv *tas2764) return 0; } +static int tas2764_read_die_temp(struct tas2764_priv *tas2764, int *result) +{ + int ret; + + ret = snd_soc_component_read(tas2764->component, TAS2764_TEMP); + if (ret < 0) + return ret; + *result = ret - 93; + return 0; +} + +static ssize_t die_temp_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct tas2764_priv *tas2764 = i2c_get_clientdata(to_i2c_client(dev)); + int ret, temp; + + ret = tas2764_read_die_temp(tas2764, &temp); + + if (ret < 0) + return ret; + + return sysfs_emit(buf, "%d C\n", temp); +} + +static DEVICE_ATTR_RO(die_temp); + +static struct attribute *tas2764_sysfs_attrs[] = { + &dev_attr_die_temp.attr, + NULL +}; +ATTRIBUTE_GROUPS(tas2764_sysfs); + static int tas2764_codec_probe(struct snd_soc_component *component) { struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component); @@ -664,9 +698,19 @@ static int tas2764_codec_probe(struct snd_soc_component *component) return ret; } + ret = sysfs_create_groups(&component->dev->kobj, tas2764_sysfs_groups); + + if (ret < 0) + return ret; + return 0; } +static void tas2764_codec_remove(struct snd_soc_component *component) +{ + sysfs_remove_groups(&component->dev->kobj, tas2764_sysfs_groups); +} + static DECLARE_TLV_DB_SCALE(tas2764_digital_tlv, 1100, 50, 0); static DECLARE_TLV_DB_SCALE(tas2764_playback_volume, -10050, 50, 1); @@ -698,6 +742,7 @@ static const struct snd_kcontrol_new tas2764_snd_controls[] = { static const struct snd_soc_component_driver soc_component_driver_tas2764 = { .probe = tas2764_codec_probe, + .remove = tas2764_codec_remove, .suspend = tas2764_codec_suspend, .resume = tas2764_codec_resume, .controls = tas2764_snd_controls, diff --git a/sound/soc/codecs/tas2764.h b/sound/soc/codecs/tas2764.h index 00296b8b1f7584e7520bd6ed749a09681f16ea09..786d81eb5b1e71bad094ef94e4b56e8f7c910285 100644 --- a/sound/soc/codecs/tas2764.h +++ b/sound/soc/codecs/tas2764.h @@ -111,6 +111,9 @@ #define TAS2764_INT_LTCH3 TAS2764_REG(0x0, 0x50) #define TAS2764_INT_LTCH4 TAS2764_REG(0x0, 0x51) +/* Readout Registers */ +#define TAS2764_TEMP TAS2764_REG(0x0, 0x56) + /* Clock/IRQ Settings */ #define TAS2764_INT_CLK_CFG TAS2764_REG(0x0, 0x5c) #define TAS2764_INT_CLK_CFG_IRQZ_CLR BIT(2)