From 523cb58bc62eaa334e2b0b424637cbcb3b99deea Mon Sep 17 00:00:00 2001 From: V3n3RiX Date: Sat, 7 Jan 2023 11:02:32 +0000 Subject: sys-kernel : reSLOT the kernels, add v6.1 --- .../files/5.10-add-sbtsi_driver.patch | 285 +++++++++++++++++++++ 1 file changed, 285 insertions(+) create mode 100644 sys-kernel/linux-sources-redcore-lts/files/5.10-add-sbtsi_driver.patch (limited to 'sys-kernel/linux-sources-redcore-lts/files/5.10-add-sbtsi_driver.patch') diff --git a/sys-kernel/linux-sources-redcore-lts/files/5.10-add-sbtsi_driver.patch b/sys-kernel/linux-sources-redcore-lts/files/5.10-add-sbtsi_driver.patch new file mode 100644 index 00000000..13035071 --- /dev/null +++ b/sys-kernel/linux-sources-redcore-lts/files/5.10-add-sbtsi_driver.patch @@ -0,0 +1,285 @@ +diff -Naur linux-5.10.2/drivers/hwmon/Kconfig linux-5.10.2-p/drivers/hwmon/Kconfig +--- linux-5.10.2/drivers/hwmon/Kconfig 2020-12-21 13:30:08.000000000 +0100 ++++ linux-5.10.2-p/drivers/hwmon/Kconfig 2020-12-25 13:49:22.911559911 +0100 +@@ -1499,6 +1499,16 @@ + This driver can also be built as a module. If so, the module + will be called sl28cpld-hwmon. + ++config SENSORS_SBTSI ++ tristate "Emulated SB-TSI temperature sensor" ++ depends on I2C ++ help ++ If you say yes here you get support for emulated temperature ++ sensors on AMD SoCs with SB-TSI interface connected to a BMC device. ++ ++ This driver can also be built as a module. If so, the module will ++ be called sbtsi_temp. ++ + config SENSORS_SHT15 + tristate "Sensiron humidity and temperature sensors. SHT15 and compat." + depends on GPIOLIB || COMPILE_TEST +diff -Naur linux-5.10.2/drivers/hwmon/Makefile linux-5.10.2-p/drivers/hwmon/Makefile +--- linux-5.10.2/drivers/hwmon/Makefile 2020-12-21 13:30:08.000000000 +0100 ++++ linux-5.10.2-p/drivers/hwmon/Makefile 2020-12-25 13:49:22.911559911 +0100 +@@ -158,6 +158,7 @@ + obj-$(CONFIG_SENSORS_PWM_FAN) += pwm-fan.o + obj-$(CONFIG_SENSORS_RASPBERRYPI_HWMON) += raspberrypi-hwmon.o + obj-$(CONFIG_SENSORS_S3C) += s3c-hwmon.o ++obj-$(CONFIG_SENSORS_SBTSI) += sbtsi_temp.o + obj-$(CONFIG_SENSORS_SCH56XX_COMMON)+= sch56xx-common.o + obj-$(CONFIG_SENSORS_SCH5627) += sch5627.o + obj-$(CONFIG_SENSORS_SCH5636) += sch5636.o +diff -Naur linux-5.10.2/drivers/hwmon/sbtsi_temp.c linux-5.10.2-p/drivers/hwmon/sbtsi_temp.c +--- linux-5.10.2/drivers/hwmon/sbtsi_temp.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-5.10.2-p/drivers/hwmon/sbtsi_temp.c 2020-12-25 13:49:22.911559911 +0100 +@@ -0,0 +1,250 @@ ++// SPDX-License-Identifier: GPL-2.0-or-later ++/* ++ * sbtsi_temp.c - hwmon driver for a SBI Temperature Sensor Interface (SB-TSI) ++ * compliant AMD SoC temperature device. ++ * ++ * Copyright (c) 2020, Google Inc. ++ * Copyright (c) 2020, Kun Yi ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++/* ++ * SB-TSI registers only support SMBus byte data access. "_INT" registers are ++ * the integer part of a temperature value or limit, and "_DEC" registers are ++ * corresponding decimal parts. ++ */ ++#define SBTSI_REG_TEMP_INT 0x01 /* RO */ ++#define SBTSI_REG_STATUS 0x02 /* RO */ ++#define SBTSI_REG_CONFIG 0x03 /* RO */ ++#define SBTSI_REG_TEMP_HIGH_INT 0x07 /* RW */ ++#define SBTSI_REG_TEMP_LOW_INT 0x08 /* RW */ ++#define SBTSI_REG_TEMP_DEC 0x10 /* RW */ ++#define SBTSI_REG_TEMP_HIGH_DEC 0x13 /* RW */ ++#define SBTSI_REG_TEMP_LOW_DEC 0x14 /* RW */ ++ ++#define SBTSI_CONFIG_READ_ORDER_SHIFT 5 ++ ++#define SBTSI_TEMP_MIN 0 ++#define SBTSI_TEMP_MAX 255875 ++ ++/* Each client has this additional data */ ++struct sbtsi_data { ++ struct i2c_client *client; ++ struct mutex lock; ++}; ++ ++/* ++ * From SB-TSI spec: CPU temperature readings and limit registers encode the ++ * temperature in increments of 0.125 from 0 to 255.875. The "high byte" ++ * register encodes the base-2 of the integer portion, and the upper 3 bits of ++ * the "low byte" encode in base-2 the decimal portion. ++ * ++ * e.g. INT=0x19, DEC=0x20 represents 25.125 degrees Celsius ++ * ++ * Therefore temperature in millidegree Celsius = ++ * (INT + DEC / 256) * 1000 = (INT * 8 + DEC / 32) * 125 ++ */ ++static inline int sbtsi_reg_to_mc(s32 integer, s32 decimal) ++{ ++ return ((integer << 3) + (decimal >> 5)) * 125; ++} ++ ++/* ++ * Inversely, given temperature in millidegree Celsius ++ * INT = (TEMP / 125) / 8 ++ * DEC = ((TEMP / 125) % 8) * 32 ++ * Caller have to make sure temp doesn't exceed 255875, the max valid value. ++ */ ++static inline void sbtsi_mc_to_reg(s32 temp, u8 *integer, u8 *decimal) ++{ ++ temp /= 125; ++ *integer = temp >> 3; ++ *decimal = (temp & 0x7) << 5; ++} ++ ++static int sbtsi_read(struct device *dev, enum hwmon_sensor_types type, ++ u32 attr, int channel, long *val) ++{ ++ struct sbtsi_data *data = dev_get_drvdata(dev); ++ s32 temp_int, temp_dec; ++ int err; ++ ++ switch (attr) { ++ case hwmon_temp_input: ++ /* ++ * ReadOrder bit specifies the reading order of integer and ++ * decimal part of CPU temp for atomic reads. If bit == 0, ++ * reading integer part triggers latching of the decimal part, ++ * so integer part should be read first. If bit == 1, read ++ * order should be reversed. ++ */ ++ err = i2c_smbus_read_byte_data(data->client, SBTSI_REG_CONFIG); ++ if (err < 0) ++ return err; ++ ++ mutex_lock(&data->lock); ++ if (err & BIT(SBTSI_CONFIG_READ_ORDER_SHIFT)) { ++ temp_dec = i2c_smbus_read_byte_data(data->client, SBTSI_REG_TEMP_DEC); ++ temp_int = i2c_smbus_read_byte_data(data->client, SBTSI_REG_TEMP_INT); ++ } else { ++ temp_int = i2c_smbus_read_byte_data(data->client, SBTSI_REG_TEMP_INT); ++ temp_dec = i2c_smbus_read_byte_data(data->client, SBTSI_REG_TEMP_DEC); ++ } ++ mutex_unlock(&data->lock); ++ break; ++ case hwmon_temp_max: ++ mutex_lock(&data->lock); ++ temp_int = i2c_smbus_read_byte_data(data->client, SBTSI_REG_TEMP_HIGH_INT); ++ temp_dec = i2c_smbus_read_byte_data(data->client, SBTSI_REG_TEMP_HIGH_DEC); ++ mutex_unlock(&data->lock); ++ break; ++ case hwmon_temp_min: ++ mutex_lock(&data->lock); ++ temp_int = i2c_smbus_read_byte_data(data->client, SBTSI_REG_TEMP_LOW_INT); ++ temp_dec = i2c_smbus_read_byte_data(data->client, SBTSI_REG_TEMP_LOW_DEC); ++ mutex_unlock(&data->lock); ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ ++ if (temp_int < 0) ++ return temp_int; ++ if (temp_dec < 0) ++ return temp_dec; ++ ++ *val = sbtsi_reg_to_mc(temp_int, temp_dec); ++ ++ return 0; ++} ++ ++static int sbtsi_write(struct device *dev, enum hwmon_sensor_types type, ++ u32 attr, int channel, long val) ++{ ++ struct sbtsi_data *data = dev_get_drvdata(dev); ++ int reg_int, reg_dec, err; ++ u8 temp_int, temp_dec; ++ ++ switch (attr) { ++ case hwmon_temp_max: ++ reg_int = SBTSI_REG_TEMP_HIGH_INT; ++ reg_dec = SBTSI_REG_TEMP_HIGH_DEC; ++ break; ++ case hwmon_temp_min: ++ reg_int = SBTSI_REG_TEMP_LOW_INT; ++ reg_dec = SBTSI_REG_TEMP_LOW_DEC; ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ val = clamp_val(val, SBTSI_TEMP_MIN, SBTSI_TEMP_MAX); ++ sbtsi_mc_to_reg(val, &temp_int, &temp_dec); ++ ++ mutex_lock(&data->lock); ++ err = i2c_smbus_write_byte_data(data->client, reg_int, temp_int); ++ if (err) ++ goto exit; ++ ++ err = i2c_smbus_write_byte_data(data->client, reg_dec, temp_dec); ++exit: ++ mutex_unlock(&data->lock); ++ return err; ++} ++ ++static umode_t sbtsi_is_visible(const void *data, ++ enum hwmon_sensor_types type, ++ u32 attr, int channel) ++{ ++ switch (type) { ++ case hwmon_temp: ++ switch (attr) { ++ case hwmon_temp_input: ++ return 0444; ++ case hwmon_temp_min: ++ return 0644; ++ case hwmon_temp_max: ++ return 0644; ++ } ++ break; ++ default: ++ break; ++ } ++ return 0; ++} ++ ++static const struct hwmon_channel_info *sbtsi_info[] = { ++ HWMON_CHANNEL_INFO(chip, HWMON_C_REGISTER_TZ), ++ HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX), ++ NULL ++}; ++ ++static const struct hwmon_ops sbtsi_hwmon_ops = { ++ .is_visible = sbtsi_is_visible, ++ .read = sbtsi_read, ++ .write = sbtsi_write, ++}; ++ ++static const struct hwmon_chip_info sbtsi_chip_info = { ++ .ops = &sbtsi_hwmon_ops, ++ .info = sbtsi_info, ++}; ++ ++static int sbtsi_probe(struct i2c_client *client, ++ const struct i2c_device_id *id) ++{ ++ struct device *dev = &client->dev; ++ struct device *hwmon_dev; ++ struct sbtsi_data *data; ++ ++ data = devm_kzalloc(dev, sizeof(struct sbtsi_data), GFP_KERNEL); ++ if (!data) ++ return -ENOMEM; ++ ++ data->client = client; ++ mutex_init(&data->lock); ++ ++ hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, data, &sbtsi_chip_info, ++ NULL); ++ ++ return PTR_ERR_OR_ZERO(hwmon_dev); ++} ++ ++static const struct i2c_device_id sbtsi_id[] = { ++ {"sbtsi", 0}, ++ {} ++}; ++MODULE_DEVICE_TABLE(i2c, sbtsi_id); ++ ++static const struct of_device_id __maybe_unused sbtsi_of_match[] = { ++ { ++ .compatible = "amd,sbtsi", ++ }, ++ { }, ++}; ++MODULE_DEVICE_TABLE(of, sbtsi_of_match); ++ ++static struct i2c_driver sbtsi_driver = { ++ .class = I2C_CLASS_HWMON, ++ .driver = { ++ .name = "sbtsi", ++ .of_match_table = of_match_ptr(sbtsi_of_match), ++ }, ++ .probe = sbtsi_probe, ++ .id_table = sbtsi_id, ++}; ++ ++module_i2c_driver(sbtsi_driver); ++ ++MODULE_AUTHOR("Kun Yi "); ++MODULE_DESCRIPTION("Hwmon driver for AMD SB-TSI emulated sensor"); ++MODULE_LICENSE("GPL"); -- cgit v1.2.3