From patchwork Wed Nov 6 15:05:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: wenliang X-Patchwork-Id: 13865069 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.4]) by smtp.subspace.kernel.org (Postfix) with ESMTP id AB2FB18FDCE; Wed, 6 Nov 2024 15:08:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.4 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730905708; cv=none; b=mjz4nExOtSzwWkSWgeWfvqpP0XKWFhbrR0SlbhzVK43NJy6BH+FjHXm8+lh/k7LHHbsjHnTeCq3JdZ7kN30T5kUpnpFuLLRb0DxBA9bDhaJCYDJ2q98Dk6PHFFnPIguV7m822EUjavECKY4MeH+9GK8FWoStNklc3UIN69e24eo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730905708; c=relaxed/simple; bh=APX+RLEUA5nmLMf40pq30UlMWTDnoMDjYzT8eTcy5kE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DA1xLq9RPiqGiPFWhYsDLUAvTR9t7gSZcx9Gk0Ynr82xAwIewaI1xA1uBK4dUUvQInoeAxjp0T1Pl/0V5Qmzi0Gs3NhWCJKAYBfNcw0mgaGwtBGzPnJragvMdYHYGRIeX8eWYrTXLerhoGYAQ+zkzfcCkBQEOdIMey8QDwZTIAk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=pK3RLiW1; arc=none smtp.client-ip=117.135.210.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="pK3RLiW1" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-ID:MIME-Version; bh=xDdJn eEVOdZSCZGfQpPwB6I96M8lbSPghhlVS+Nvy4o=; b=pK3RLiW1LdPXjD80cPgiq ogljBw6btVNaVqzKFkwHXVmp7ZaSBclSE7AmKQoxtN+q95eGmpnB0K43NWyVrPrS mS3SsAAFkTcCxnvzIqCkq3HMzwFQEhWuFjwGwdn8Htv+6Q4y73I2a6fevs+359/1 0UBVuhRSb6qAbr/eYXEAW0= Received: from 100ask.localdomain (unknown [112.10.131.71]) by gzsmtp4 (Coremail) with SMTP id PygvCgAn76_NhStnn+5rCg--.55144S2; Wed, 06 Nov 2024 23:05:50 +0800 (CST) From: wenliang To: linux@roeck-us.net Cc: wenliang , jdelvare@suse.com, corbet@lwn.net, linux-hwmon@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 1/2] hwmon: (ina226) Add support for SY24655 Date: Wed, 6 Nov 2024 10:05:46 -0500 Message-ID: <20241106150547.2538-1-wenliang202407@163.com> X-Mailer: git-send-email 2.47.0.229.g8f8d6eee53 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: PygvCgAn76_NhStnn+5rCg--.55144S2 X-Coremail-Antispam: 1Uf129KBjvJXoW3CFW7WF4rGFWktrWkGrWfXwb_yoWDtry7pr ZxGa4ftrW8JFyfXr4Dt3yrGr15Awn7ArW8Cr18G34ruF45Aryvkr1Utr18tFWUGrykAF4j qFyktry8Cr1UJrUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0pRIkshUUUUU= X-CM-SenderInfo: xzhqzxhdqjjiisuqlqqrwthudrp/1tbiow2M02cnrJ46YQACsa SY24655: Support for current and voltage detection as well as power calculation. Signed-off-by: wenliang --- ina2xx.rst: Add document content description for SY24655, including datasheet, parameter description, and chip function description. ina2xx.c: Add register addresses unique(SY24655_EIN and SY24655_ACCUM_CONFIG) to SY24655 for data reading and initialization. Add has_power_average in struct ina2xx_config to control average power reading. Add initialization data for SY24655. Initialize the power accumulation register(SY24655_ACCUM_CONFIG) for configuration SY24655. Add a read function to the EIN register(48-bit reading). Documentation/hwmon/ina2xx.rst | 27 +++++++++- drivers/hwmon/Kconfig | 2 +- drivers/hwmon/ina2xx.c | 96 ++++++++++++++++++++++++++++++++-- 3 files changed, 118 insertions(+), 7 deletions(-) diff --git a/Documentation/hwmon/ina2xx.rst b/Documentation/hwmon/ina2xx.rst index 1ce161e6c0bf..a3860aae444c 100644 --- a/Documentation/hwmon/ina2xx.rst +++ b/Documentation/hwmon/ina2xx.rst @@ -63,6 +63,17 @@ Supported chips: https://www.ti.com/ + * Silergy SY24655 + + Prefix: 'sy24655' + + Addresses: I2C 0x40 - 0x4f + + Datasheet: Publicly available at the Silergy website + + https://us1.silergy.com/ + + Author: Lothar Felten Description @@ -85,6 +96,11 @@ bus supply voltage. INA260 is a high or low side current and power monitor with integrated shunt resistor. +The SY24655 is a high- and low-side current shunt and power monitor with an I2C +interface. The SY24655 supports both shunt drop and supply voltage, with +programmable calibration value and conversion times. The SY24655 can also +calculate average power for use in energy conversion. + The shunt value in micro-ohms can be set via platform data or device tree at compile-time or via the shunt_resistor attribute in sysfs at run-time. Please refer to the Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml for bindings @@ -108,8 +124,8 @@ power1_input Power(uW) measurement channel shunt_resistor Shunt resistance(uOhm) channel (not for ina260) ======================= =============================================== -Additional sysfs entries for ina226, ina230, ina231, and ina260 ---------------------------------------------------------------- +Additional sysfs entries for ina226, ina230, ina231, ina260, and sy24655 +------------------------------------------------------------------------ ======================= ==================================================== curr1_lcrit Critical low current @@ -130,6 +146,13 @@ update_interval data conversion time; affects number of samples used to average results for shunt and bus voltages. ======================= ==================================================== +Sysfs entries for sy24655 only +------------------------------ + +======================= ==================================================== +power1_average average power from last reading to the present. +======================= ==================================================== + .. note:: - Configure `shunt_resistor` before configure `power1_crit`, because power diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index cfb4e9314c62..a837b7a1cff4 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -2189,7 +2189,7 @@ config SENSORS_INA2XX select REGMAP_I2C help If you say yes here you get support for INA219, INA220, INA226, - INA230, INA231, and INA260 power monitor chips. + INA230, INA231, INA260, and SY24655 power monitor chips. The INA2xx driver is configured for the default configuration of the part as described in the datasheet. diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c index cecc80a41a97..16fdbc0eb1f9 100644 --- a/drivers/hwmon/ina2xx.c +++ b/drivers/hwmon/ina2xx.c @@ -51,12 +51,19 @@ #define INA226_ALERT_LIMIT 0x07 #define INA226_DIE_ID 0xFF -#define INA2XX_MAX_REGISTERS 8 +/* SY24655 register definitions */ +#define SY24655_EIN 0x0A +#define SY24655_ACCUM_CONFIG 0x0D +#define INA2XX_MAX_REGISTERS 0x0D /* settings - depend on use case */ #define INA219_CONFIG_DEFAULT 0x399F /* PGA=8 */ #define INA226_CONFIG_DEFAULT 0x4527 /* averages=16 */ #define INA260_CONFIG_DEFAULT 0x6527 /* averages=16 */ +#define SY24655_CONFIG_DEFAULT 0x4527 /* averages=16 */ + +/* (only for sy24655) */ +#define SY24655_ACCUM_CONFIG_DEFAULT 0x044C /* continuous mode, clear after read*/ /* worst case is 68.10 ms (~14.6Hz, ina219) */ #define INA2XX_CONVERSION_RATE 15 @@ -97,6 +104,7 @@ static bool ina2xx_writeable_reg(struct device *dev, unsigned int reg) case INA2XX_CALIBRATION: case INA226_MASK_ENABLE: case INA226_ALERT_LIMIT: + case SY24655_ACCUM_CONFIG: return true; default: return false; @@ -127,12 +135,13 @@ static const struct regmap_config ina2xx_regmap_config = { .writeable_reg = ina2xx_writeable_reg, }; -enum ina2xx_ids { ina219, ina226, ina260 }; +enum ina2xx_ids { ina219, ina226, ina260, sy24655 }; struct ina2xx_config { u16 config_default; bool has_alerts; /* chip supports alerts and limits */ bool has_ishunt; /* chip has internal shunt resistor */ + bool has_power_average; /* chip has internal shunt resistor */ int calibration_value; int shunt_div; int bus_voltage_shift; @@ -149,6 +158,7 @@ struct ina2xx_data { long power_lsb_uW; struct mutex config_lock; struct regmap *regmap; + struct i2c_client *client; }; static const struct ina2xx_config ina2xx_config[] = { @@ -161,6 +171,7 @@ static const struct ina2xx_config ina2xx_config[] = { .power_lsb_factor = 20, .has_alerts = false, .has_ishunt = false, + .has_power_average = false, }, [ina226] = { .config_default = INA226_CONFIG_DEFAULT, @@ -171,6 +182,7 @@ static const struct ina2xx_config ina2xx_config[] = { .power_lsb_factor = 25, .has_alerts = true, .has_ishunt = false, + .has_power_average = false, }, [ina260] = { .config_default = INA260_CONFIG_DEFAULT, @@ -180,6 +192,18 @@ static const struct ina2xx_config ina2xx_config[] = { .power_lsb_factor = 8, .has_alerts = true, .has_ishunt = true, + .has_power_average = false, + }, + [sy24655] = { + .config_default = SY24655_CONFIG_DEFAULT, + .calibration_value = 4096, + .shunt_div = 400, + .bus_voltage_shift = 0, + .bus_voltage_lsb = 1250, + .power_lsb_factor = 25, + .has_alerts = true, + .has_ishunt = false, + .has_power_average = true, }, }; @@ -485,6 +509,42 @@ static int ina2xx_in_read(struct device *dev, u32 attr, int channel, long *val) return 0; } +/* + * Configuring the READ_EIN (bit 10) of the ACCUM_CONFIG register to 1 + * can clear accumulator and sample_count after reading the EIN register. + * This way, the average power between the last read and the current + * read can be obtained. By combining with accurate time data from + * outside, the energy consumption during that period can be calculated. + */ +static int sy24655_average_power_read(struct ina2xx_data *data, u8 reg, long *val) +{ + u8 template[6]; + int ret; + long accumulator_24, sample_count; + unsigned int regval; + + /* 48-bit register read */ + ret = i2c_smbus_read_i2c_block_data(data->client, reg, 6, template); + if (ret < 0) + return ret; + if (ret != 6) + return -EIO; + accumulator_24 = ((template[3] << 16) | + (template[4] << 8) | + template[5]); + sample_count = ((template[0] << 16) | + (template[1] << 8) | + template[2]); + if (sample_count <= 0) { + *val = 0; + return 0; + } + + *val = DIV_ROUND_CLOSEST(accumulator_24, sample_count) * data->power_lsb_uW; + + return 0; +} + static int ina2xx_power_read(struct device *dev, u32 attr, long *val) { struct ina2xx_data *data = dev_get_drvdata(dev); @@ -492,6 +552,8 @@ static int ina2xx_power_read(struct device *dev, u32 attr, long *val) switch (attr) { case hwmon_power_input: return ina2xx_read_init(dev, INA2XX_POWER, val); + case hwmon_power_average: + return sy24655_average_power_read(data, SY24655_EIN, val); case hwmon_power_crit: return ina226_alert_limit_read(data, INA226_POWER_OVER_LIMIT_MASK, INA2XX_POWER, val); @@ -651,6 +713,7 @@ static umode_t ina2xx_is_visible(const void *_data, enum hwmon_sensor_types type { const struct ina2xx_data *data = _data; bool has_alerts = data->config->has_alerts; + bool has_power_average = data->config->has_power_average; enum ina2xx_ids chip = data->chip; switch (type) { @@ -668,6 +731,11 @@ static umode_t ina2xx_is_visible(const void *_data, enum hwmon_sensor_types type if (has_alerts) return 0444; break; + case hwmon_power_average: + if (has_power_average) + return 0444; + break; + return 0444; default: break; } @@ -734,7 +802,8 @@ static const struct hwmon_channel_info * const ina2xx_info[] = { HWMON_CHANNEL_INFO(curr, HWMON_C_INPUT | HWMON_C_CRIT | HWMON_C_CRIT_ALARM | HWMON_C_LCRIT | HWMON_C_LCRIT_ALARM), HWMON_CHANNEL_INFO(power, - HWMON_P_INPUT | HWMON_P_CRIT | HWMON_P_CRIT_ALARM), + HWMON_P_INPUT | HWMON_P_CRIT | HWMON_P_CRIT_ALARM | + HWMON_P_AVERAGE), NULL }; @@ -839,6 +908,19 @@ static int ina2xx_init(struct device *dev, struct ina2xx_data *data) INA226_ALERT_LATCH_ENABLE | FIELD_PREP(INA226_ALERT_POLARITY, active_high)); } + if (data->config->has_power_average) { + if (data->chip == sy24655) { + /* + * Initialize the power accumulation method to continuous + * mode and clear the EIN register after each read of the + * EIN register + */ + ret = regmap_write(regmap, SY24655_ACCUM_CONFIG, + SY24655_ACCUM_CONFIG_DEFAULT); + if (ret < 0) + return ret; + } + } if (data->config->has_ishunt) return 0; @@ -868,6 +950,7 @@ static int ina2xx_probe(struct i2c_client *client) return -ENOMEM; /* set the device type */ + data->client = client; data->config = &ina2xx_config[chip]; data->chip = chip; mutex_init(&data->config_lock); @@ -906,6 +989,7 @@ static const struct i2c_device_id ina2xx_id[] = { { "ina230", ina226 }, { "ina231", ina226 }, { "ina260", ina260 }, + { "sy24655", sy24655 }, { } }; MODULE_DEVICE_TABLE(i2c, ina2xx_id); @@ -935,7 +1019,11 @@ static const struct of_device_id __maybe_unused ina2xx_of_match[] = { .compatible = "ti,ina260", .data = (void *)ina260 }, - { }, + { + .compatible = "silergy,sy24655", + .data = (void *)sy24655 + }, + { } }; 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Wed, 06 Nov 2024 23:05:54 +0800 (CST) From: wenliang To: linux@roeck-us.net Cc: wenliang , jdelvare@suse.com, linux-hwmon@vger.kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Conor Dooley Subject: [PATCH v3 2/2] dt-bindings: Add SY24655 to ina2xx devicetree bindings Date: Wed, 6 Nov 2024 10:05:47 -0500 Message-ID: <20241106150547.2538-2-wenliang202407@163.com> X-Mailer: git-send-email 2.47.0.229.g8f8d6eee53 In-Reply-To: <20241106150547.2538-1-wenliang202407@163.com> References: <20241106150547.2538-1-wenliang202407@163.com> Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: PygvCgAn76_NhStnn+5rCg--.55144S3 X-Coremail-Antispam: 1Uf129KBjvdXoWrZFyUJrW8tFy5tryrJr47Arb_yoWfAwcEgF WxA3WUXFZ8JFyYgr4qv3yxXryFyw1IkF4kCw1UCrZ5Aws5Zrs0ga4kG3s8CryUXay3uw13 ua1kX3yqqrnFkjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7sRNmiiDUUUUU== X-CM-SenderInfo: xzhqzxhdqjjiisuqlqqrwthudrp/1tbiRx6P02crflpf+QAAsL SY24655 is similar to INA226. Its supply voltage and pin definitions are therefore the same. Compared to INA226, SY24655 has two additional registers for configuring and calculating average power. Signed-off-by: wenliang Acked-by: Conor Dooley --- Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml b/Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml index 6ae961732e6b..05a9cb36cd82 100644 --- a/Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml +++ b/Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml @@ -20,6 +20,7 @@ description: | properties: compatible: enum: + - silergy,sy24655 - ti,ina209 - ti,ina219 - ti,ina220