From patchwork Thu Oct 24 08:30:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wenliang X-Patchwork-Id: 13848506 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.2]) by smtp.subspace.kernel.org (Postfix) with ESMTP id C99391B0F1A; Thu, 24 Oct 2024 08:31:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.2 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729758690; cv=none; b=RgN4WuG+l0ZyGMATiD3lJxPVG9fkMhKCPbVFxquQ4oz2kSJE1npKiENzHKXMbYa3+m/iGPC9S2sArtJbwo0GQNRThbC/XUm4qKDHmunqGFXmkG+eIpAVoXlNj/rsGbbX0wuDuej2/NkLMzE/bndki6m9bG3vrUCjtjZkQPtRrEI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729758690; c=relaxed/simple; bh=FIyL9wTlJVY8UykGGvmUpzDcH1Vwsy+uNN4CYmXaqMo=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=Irv9cqytDSKPYMsix8pEwoMr9NfLyWLK7ZOAILjufggd2+9eIih1wVn4LSFk5HVwKj6H1FZz0AxaYmldOMTaQc/4JBdi8B+KgOTws4HGUac60LwGb3T3soI5JjD+tJ1h6XW/VjCTiuRN24M9OXzFRS/NKAOOwBDcv6DjAoWzcHM= 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=IoeNJWSA; arc=none smtp.client-ip=220.197.31.2 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="IoeNJWSA" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id; bh=9j1jVInBa3aoNuEyXN llBIdcnOIOKZMzOu6HCDyuF2c=; b=IoeNJWSAI/03rHewRsmO3M/rmSAPAhneQy VjkgzmekxjUHBZSvOouuaTGTPdYSFyAGJhk4It4BIzIbSVUow+MFXm4F9ROGcm1w u3LLr0ladIEjzMq2FHmWGZftJtEWRz7i9tCU96pfkNVKNW1Vq+68HJwSk5gSxLtl YosGRgD7M= Received: from 100ask.localdomain (unknown [36.18.166.195]) by gzga-smtp-mtada-g1-0 (Coremail) with SMTP id _____wD3v07CBRpnboiLDA--.18S2; Thu, 24 Oct 2024 16:31:00 +0800 (CST) From: Wenliang To: linux@roeck-us.net Cc: Wenliang , jdelvare@suse.com, linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 1/2] hwmon: modified ina2xx to match SY24655 Date: Thu, 24 Oct 2024 04:30:54 -0400 Message-Id: <20241024083055.82047-1-wenliang202407@163.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <80bfd968-8f12-46b1-9b72-837502ccdb2a@roeck-us.ne> References: <80bfd968-8f12-46b1-9b72-837502ccdb2a@roeck-us.ne> X-CM-TRANSID: _____wD3v07CBRpnboiLDA--.18S2 X-Coremail-Antispam: 1Uf129KBjvJXoW3GF1rWFyUGrW8XrWkJrW7twb_yoWfKF4Upr ZxGa4ftrWUtF9xXr4kt3y5Gr15Awn7ArWUCr18G34ru3W5A34v934Utr10yFWUGrykAFWU tFyktr18Gr1UJrUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0pRS_MwUUUUU= X-CM-SenderInfo: xzhqzxhdqjjiisuqlqqrwthudrp/1tbioxaC02caAfpBuAAAsb Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: v3:Support the SY24655 for current and voltage detection as well as power calculation. SY24655 provides a power accumulator, thus adding the power1_average parameter to output the average power, which can be used to calculate energy; In order to achieve average power, adding extra EIN register and ACCUM_CONFIG register addresses for SY24655. Due to the 48 bit read-only nature of the EIN register, a function has been added specifically for average power reading. Signed-off-by: Wenliang --- Documentation/hwmon/ina2xx.rst | 25 ++++++++- drivers/hwmon/Kconfig | 2 +- drivers/hwmon/ina2xx.c | 97 ++++++++++++++++++++++++++++++++-- 3 files changed, 118 insertions(+), 6 deletions(-) diff --git a/Documentation/hwmon/ina2xx.rst b/Documentation/hwmon/ina2xx.rst index 1ce161e6c0bf..eac8bb1deda0 100644 --- a/Documentation/hwmon/ina2xx.rst +++ b/Documentation/hwmon/ina2xx.rst @@ -63,6 +63,16 @@ 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 +95,11 @@ 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 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 @@ -108,7 +123,7 @@ 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 --------------------------------------------------------------- ======================= ==================================================== @@ -130,6 +145,14 @@ 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 calculate 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 64fefb22ecee..48b446c366f2 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -2178,7 +2178,7 @@ 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..9270af69ef6f 100644 --- a/drivers/hwmon/ina2xx.c +++ b/drivers/hwmon/ina2xx.c @@ -51,12 +51,20 @@ #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 @@ -84,6 +92,8 @@ #define INA226_ALERT_CONFIG_MASK GENMASK(15, 10) #define INA226_ALERT_FUNCTION_FLAG BIT(4) +#define SY24655_EIN_OVERFLOW_FLAG BIT(6) + /* * Both bus voltage and shunt voltage conversion times for ina226 are set * to 0b0100 on POR, which translates to 2200 microseconds in total. @@ -97,6 +107,7 @@ 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; @@ -127,7 +138,7 @@ 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; @@ -149,6 +160,8 @@ 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[] = { @@ -181,6 +194,16 @@ static const struct ina2xx_config ina2xx_config[] = { .has_alerts = true, .has_ishunt = true, }, + [sy24655] = { + .config_default = SY24655_CONFIG_DEFAULT, + .calibration_value = 2048, + .shunt_div = 400, + .bus_voltage_shift = 0, + .bus_voltage_lsb = 1250, + .power_lsb_factor = 25, + .has_alerts = false, + .has_ishunt = false, + }, }; /* @@ -485,6 +508,49 @@ 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; + + ret = regmap_read_bypassed(data->regmap, INA226_MASK_ENABLE, ®val); + if (ret) + return ret; + + if (regval & SY24655_EIN_OVERFLOW_FLAG) + return -ENOMEM; + + /* 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 +558,8 @@ 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); @@ -702,6 +770,8 @@ static umode_t ina2xx_is_visible(const void *_data, enum hwmon_sensor_types type if (has_alerts) return 0444; break; + case hwmon_power_average: + return 0444; default: break; } @@ -734,7 +804,8 @@ 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 }; @@ -840,6 +911,18 @@ static int ina2xx_init(struct device *dev, struct ina2xx_data *data) FIELD_PREP(INA226_ALERT_POLARITY, active_high)); } + 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 +951,7 @@ 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 +990,7 @@ static const struct i2c_device_id ina2xx_id[] = { { "ina230", ina226 }, { "ina231", ina226 }, { "ina260", ina260 }, + { "sy24655", sy24655 }, { } }; MODULE_DEVICE_TABLE(i2c, ina2xx_id); @@ -935,7 +1020,11 @@ 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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Thu, 24 Oct 2024 16:31:05 +0800 (CST) From: Wenliang To: linux@roeck-us.net Cc: Wenliang , jdelvare@suse.com, linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, robh@kernel.org, conor+dt@kernel.org, krzk+dt@kernel.org Subject: [PATCH v3 2/2] dt-bindings: modified ina2xx to match SY24655 Date: Thu, 24 Oct 2024 04:30:55 -0400 Message-Id: <20241024083055.82047-2-wenliang202407@163.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20241024083055.82047-1-wenliang202407@163.com> References: <80bfd968-8f12-46b1-9b72-837502ccdb2a@roeck-us.ne> <20241024083055.82047-1-wenliang202407@163.com> X-CM-TRANSID: _____wD3v07CBRpnboiLDA--.18S3 X-Coremail-Antispam: 1Uf129KBjvdXoWrtr1Dtw1kJrykXF1rAFy3XFb_yoWfAwcEga 1xAw1UXrZ8JFyYgr4qy397JryFyw1SkF4kAw1jkrZ3Aw4rZrZ0ga4kJ3s0kry8Xay3uF13 uws5X3yjqrsrGjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7sR_oGQDUUUUU== X-CM-SenderInfo: xzhqzxhdqjjiisuqlqqrwthudrp/1tbiowmC02caAfpCAAAAs- Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Adding Silergy's sy24655 as an adapter chip for Ina2xx drivers. Because it is similar to INA226, the supply voltage and pin definitions are the same. It also supports IIC communication, with only two additional registers added 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