diff options
author | V3n3RiX <venerix@koprulu.sector> | 2024-01-14 11:59:53 +0000 |
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committer | V3n3RiX <venerix@koprulu.sector> | 2024-01-14 11:59:53 +0000 |
commit | 31ca89a7fa300f61fc4251adae7b984c5a24b5d5 (patch) | |
tree | fca510e169784eac425d1368dde7ac6e68819720 /sys-kernel/linux-sources-redcore-lts/files/5.10-add-sbtsi_driver.patch | |
parent | be3e67a7b521167bee216707bba9a9c9a0e2f9a5 (diff) |
sys-kernel/linux-{image,sources}-redcore-lts : drop v5.10
Diffstat (limited to 'sys-kernel/linux-sources-redcore-lts/files/5.10-add-sbtsi_driver.patch')
-rw-r--r-- | sys-kernel/linux-sources-redcore-lts/files/5.10-add-sbtsi_driver.patch | 285 |
1 files changed, 0 insertions, 285 deletions
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 deleted file mode 100644 index 13035071..00000000 --- a/sys-kernel/linux-sources-redcore-lts/files/5.10-add-sbtsi_driver.patch +++ /dev/null @@ -1,285 +0,0 @@ -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 <kunyi@google.com> -+ */ -+ -+#include <linux/err.h> -+#include <linux/i2c.h> -+#include <linux/init.h> -+#include <linux/hwmon.h> -+#include <linux/module.h> -+#include <linux/mutex.h> -+#include <linux/of_device.h> -+#include <linux/of.h> -+ -+/* -+ * 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 <kunyi@google.com>"); -+MODULE_DESCRIPTION("Hwmon driver for AMD SB-TSI emulated sensor"); -+MODULE_LICENSE("GPL"); |