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-rw-r--r--drivers/hwmon/pmbus/Kconfig18
-rw-r--r--drivers/hwmon/pmbus/Makefile2
-rw-r--r--drivers/hwmon/pmbus/adm1275.c105
-rw-r--r--drivers/hwmon/pmbus/irps5401.c67
-rw-r--r--drivers/hwmon/pmbus/pxe1610.c139
5 files changed, 330 insertions, 1 deletions
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 30751eb9550a..b6588483fae1 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -64,6 +64,15 @@ config SENSORS_IR38064
This driver can also be built as a module. If so, the module will
be called ir38064.
+config SENSORS_IRPS5401
+ tristate "Infineon IRPS5401"
+ help
+ If you say yes here you get hardware monitoring support for the
+ Infineon IRPS5401 controller.
+
+ This driver can also be built as a module. If so, the module will
+ be called irps5401.
+
config SENSORS_ISL68137
tristate "Intersil ISL68137"
help
@@ -154,6 +163,15 @@ config SENSORS_MAX8688
This driver can also be built as a module. If so, the module will
be called max8688.
+config SENSORS_PXE1610
+ tristate "Infineon PXE1610"
+ help
+ If you say yes here you get hardware monitoring support for Infineon
+ PXE1610.
+
+ This driver can also be built as a module. If so, the module will
+ be called pxe1610.
+
config SENSORS_TPS40422
tristate "TI TPS40422"
help
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
index 2219b9300316..c950ea9a5d00 100644
--- a/drivers/hwmon/pmbus/Makefile
+++ b/drivers/hwmon/pmbus/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_SENSORS_ADM1275) += adm1275.o
obj-$(CONFIG_SENSORS_IBM_CFFPS) += ibm-cffps.o
obj-$(CONFIG_SENSORS_IR35221) += ir35221.o
obj-$(CONFIG_SENSORS_IR38064) += ir38064.o
+obj-$(CONFIG_SENSORS_IRPS5401) += irps5401.o
obj-$(CONFIG_SENSORS_ISL68137) += isl68137.o
obj-$(CONFIG_SENSORS_LM25066) += lm25066.o
obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o
@@ -18,6 +19,7 @@ obj-$(CONFIG_SENSORS_MAX20751) += max20751.o
obj-$(CONFIG_SENSORS_MAX31785) += max31785.o
obj-$(CONFIG_SENSORS_MAX34440) += max34440.o
obj-$(CONFIG_SENSORS_MAX8688) += max8688.o
+obj-$(CONFIG_SENSORS_PXE1610) += pxe1610.o
obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o
obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c
index 82052b6611c9..5caa37fbfc18 100644
--- a/drivers/hwmon/pmbus/adm1275.c
+++ b/drivers/hwmon/pmbus/adm1275.c
@@ -14,6 +14,8 @@
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/bitops.h>
+#include <linux/bitfield.h>
+#include <linux/log2.h>
#include "pmbus.h"
enum chips { adm1075, adm1272, adm1275, adm1276, adm1278, adm1293, adm1294 };
@@ -69,6 +71,18 @@ enum chips { adm1075, adm1272, adm1275, adm1276, adm1278, adm1293, adm1294 };
#define ADM1075_VAUX_OV_WARN BIT(7)
#define ADM1075_VAUX_UV_WARN BIT(6)
+#define ADM1275_VI_AVG_SHIFT 0
+#define ADM1275_VI_AVG_MASK GENMASK(ADM1275_VI_AVG_SHIFT + 2, \
+ ADM1275_VI_AVG_SHIFT)
+#define ADM1275_SAMPLES_AVG_MAX 128
+
+#define ADM1278_PWR_AVG_SHIFT 11
+#define ADM1278_PWR_AVG_MASK GENMASK(ADM1278_PWR_AVG_SHIFT + 2, \
+ ADM1278_PWR_AVG_SHIFT)
+#define ADM1278_VI_AVG_SHIFT 8
+#define ADM1278_VI_AVG_MASK GENMASK(ADM1278_VI_AVG_SHIFT + 2, \
+ ADM1278_VI_AVG_SHIFT)
+
struct adm1275_data {
int id;
bool have_oc_fault;
@@ -80,6 +94,7 @@ struct adm1275_data {
bool have_pin_min;
bool have_pin_max;
bool have_temp_max;
+ bool have_power_sampling;
struct pmbus_driver_info info;
};
@@ -155,6 +170,62 @@ static const struct coefficients adm1293_coefficients[] = {
[18] = { 7658, 0, -3 }, /* power, 21V, irange200 */
};
+static int adm1275_read_pmon_config(const struct adm1275_data *data,
+ struct i2c_client *client, bool is_power)
+{
+ int shift, ret;
+ u16 mask;
+
+ /*
+ * The PMON configuration register is a 16-bit register only on chips
+ * supporting power average sampling. On other chips it is an 8-bit
+ * register.
+ */
+ if (data->have_power_sampling) {
+ ret = i2c_smbus_read_word_data(client, ADM1275_PMON_CONFIG);
+ mask = is_power ? ADM1278_PWR_AVG_MASK : ADM1278_VI_AVG_MASK;
+ shift = is_power ? ADM1278_PWR_AVG_SHIFT : ADM1278_VI_AVG_SHIFT;
+ } else {
+ ret = i2c_smbus_read_byte_data(client, ADM1275_PMON_CONFIG);
+ mask = ADM1275_VI_AVG_MASK;
+ shift = ADM1275_VI_AVG_SHIFT;
+ }
+ if (ret < 0)
+ return ret;
+
+ return (ret & mask) >> shift;
+}
+
+static int adm1275_write_pmon_config(const struct adm1275_data *data,
+ struct i2c_client *client,
+ bool is_power, u16 word)
+{
+ int shift, ret;
+ u16 mask;
+
+ if (data->have_power_sampling) {
+ ret = i2c_smbus_read_word_data(client, ADM1275_PMON_CONFIG);
+ mask = is_power ? ADM1278_PWR_AVG_MASK : ADM1278_VI_AVG_MASK;
+ shift = is_power ? ADM1278_PWR_AVG_SHIFT : ADM1278_VI_AVG_SHIFT;
+ } else {
+ ret = i2c_smbus_read_byte_data(client, ADM1275_PMON_CONFIG);
+ mask = ADM1275_VI_AVG_MASK;
+ shift = ADM1275_VI_AVG_SHIFT;
+ }
+ if (ret < 0)
+ return ret;
+
+ word = (ret & ~mask) | ((word << shift) & mask);
+ if (data->have_power_sampling)
+ ret = i2c_smbus_write_word_data(client, ADM1275_PMON_CONFIG,
+ word);
+ else
+ ret = i2c_smbus_write_byte_data(client, ADM1275_PMON_CONFIG,
+ word);
+
+ return ret;
+}
+
static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
{
const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
@@ -233,6 +304,21 @@ static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
if (!data->have_temp_max)
return -ENXIO;
break;
+ case PMBUS_VIRT_POWER_SAMPLES:
+ if (!data->have_power_sampling)
+ return -ENXIO;
+ ret = adm1275_read_pmon_config(data, client, true);
+ if (ret < 0)
+ break;
+ ret = BIT(ret);
+ break;
+ case PMBUS_VIRT_IN_SAMPLES:
+ case PMBUS_VIRT_CURR_SAMPLES:
+ ret = adm1275_read_pmon_config(data, client, false);
+ if (ret < 0)
+ break;
+ ret = BIT(ret);
+ break;
default:
ret = -ENODATA;
break;
@@ -277,6 +363,19 @@ static int adm1275_write_word_data(struct i2c_client *client, int page, int reg,
case PMBUS_VIRT_RESET_TEMP_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1278_PEAK_TEMP, 0);
break;
+ case PMBUS_VIRT_POWER_SAMPLES:
+ if (!data->have_power_sampling)
+ return -ENXIO;
+ word = clamp_val(word, 1, ADM1275_SAMPLES_AVG_MAX);
+ ret = adm1275_write_pmon_config(data, client, true,
+ ilog2(word));
+ break;
+ case PMBUS_VIRT_IN_SAMPLES:
+ case PMBUS_VIRT_CURR_SAMPLES:
+ word = clamp_val(word, 1, ADM1275_SAMPLES_AVG_MAX);
+ ret = adm1275_write_pmon_config(data, client, false,
+ ilog2(word));
+ break;
default:
ret = -ENODATA;
break;
@@ -430,7 +529,8 @@ static int adm1275_probe(struct i2c_client *client,
info->format[PSC_CURRENT_OUT] = direct;
info->format[PSC_POWER] = direct;
info->format[PSC_TEMPERATURE] = direct;
- info->func[0] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT;
+ info->func[0] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
+ PMBUS_HAVE_SAMPLES;
info->read_word_data = adm1275_read_word_data;
info->read_byte_data = adm1275_read_byte_data;
@@ -471,6 +571,7 @@ static int adm1275_probe(struct i2c_client *client,
data->have_vout = true;
data->have_pin_max = true;
data->have_temp_max = true;
+ data->have_power_sampling = true;
coefficients = adm1272_coefficients;
vindex = (config & ADM1275_VRANGE) ? 1 : 0;
@@ -556,6 +657,7 @@ static int adm1275_probe(struct i2c_client *client,
data->have_vout = true;
data->have_pin_max = true;
data->have_temp_max = true;
+ data->have_power_sampling = true;
coefficients = adm1278_coefficients;
vindex = 0;
@@ -591,6 +693,7 @@ static int adm1275_probe(struct i2c_client *client,
data->have_pin_min = true;
data->have_pin_max = true;
data->have_mfr_vaux_status = true;
+ data->have_power_sampling = true;
coefficients = adm1293_coefficients;
diff --git a/drivers/hwmon/pmbus/irps5401.c b/drivers/hwmon/pmbus/irps5401.c
new file mode 100644
index 000000000000..d37daa001fb3
--- /dev/null
+++ b/drivers/hwmon/pmbus/irps5401.c
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Hardware monitoring driver for the Infineon IRPS5401M PMIC.
+ *
+ * Copyright (c) 2019 SED Systems, a division of Calian Ltd.
+ *
+ * The device supports VOUT_PEAK, IOUT_PEAK, and TEMPERATURE_PEAK, however
+ * this driver does not currently support them.
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include "pmbus.h"
+
+#define IRPS5401_SW_FUNC (PMBUS_HAVE_VIN | PMBUS_HAVE_IIN | \
+ PMBUS_HAVE_STATUS_INPUT | \
+ PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | \
+ PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | \
+ PMBUS_HAVE_PIN | PMBUS_HAVE_POUT | \
+ PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP)
+
+#define IRPS5401_LDO_FUNC (PMBUS_HAVE_VIN | \
+ PMBUS_HAVE_STATUS_INPUT | \
+ PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | \
+ PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | \
+ PMBUS_HAVE_PIN | PMBUS_HAVE_POUT | \
+ PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP)
+
+static struct pmbus_driver_info irps5401_info = {
+ .pages = 5,
+ .func[0] = IRPS5401_SW_FUNC,
+ .func[1] = IRPS5401_SW_FUNC,
+ .func[2] = IRPS5401_SW_FUNC,
+ .func[3] = IRPS5401_SW_FUNC,
+ .func[4] = IRPS5401_LDO_FUNC,
+};
+
+static int irps5401_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ return pmbus_do_probe(client, id, &irps5401_info);
+}
+
+static const struct i2c_device_id irps5401_id[] = {
+ {"irps5401", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, irps5401_id);
+
+static struct i2c_driver irps5401_driver = {
+ .driver = {
+ .name = "irps5401",
+ },
+ .probe = irps5401_probe,
+ .remove = pmbus_do_remove,
+ .id_table = irps5401_id,
+};
+
+module_i2c_driver(irps5401_driver);
+
+MODULE_AUTHOR("Robert Hancock");
+MODULE_DESCRIPTION("PMBus driver for Infineon IRPS5401");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/pxe1610.c b/drivers/hwmon/pmbus/pxe1610.c
new file mode 100644
index 000000000000..ebe3f023f840
--- /dev/null
+++ b/drivers/hwmon/pmbus/pxe1610.c
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Hardware monitoring driver for Infineon PXE1610
+ *
+ * Copyright (c) 2019 Facebook Inc
+ *
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include "pmbus.h"
+
+#define PXE1610_NUM_PAGES 3
+
+/* Identify chip parameters. */
+static int pxe1610_identify(struct i2c_client *client,
+ struct pmbus_driver_info *info)
+{
+ if (pmbus_check_byte_register(client, 0, PMBUS_VOUT_MODE)) {
+ u8 vout_mode;
+ int ret;
+
+ /* Read the register with VOUT scaling value.*/
+ ret = pmbus_read_byte_data(client, 0, PMBUS_VOUT_MODE);
+ if (ret < 0)
+ return ret;
+
+ vout_mode = ret & GENMASK(4, 0);
+
+ switch (vout_mode) {
+ case 1:
+ info->vrm_version = vr12;
+ break;
+ case 2:
+ info->vrm_version = vr13;
+ break;
+ default:
+ return -ENODEV;
+ }
+ }
+
+ return 0;
+}
+
+static struct pmbus_driver_info pxe1610_info = {
+ .pages = PXE1610_NUM_PAGES,
+ .format[PSC_VOLTAGE_IN] = linear,
+ .format[PSC_VOLTAGE_OUT] = vid,
+ .format[PSC_CURRENT_IN] = linear,
+ .format[PSC_CURRENT_OUT] = linear,
+ .format[PSC_TEMPERATURE] = linear,
+ .format[PSC_POWER] = linear,
+ .func[0] = PMBUS_HAVE_VIN
+ | PMBUS_HAVE_VOUT | PMBUS_HAVE_IIN
+ | PMBUS_HAVE_IOUT | PMBUS_HAVE_PIN
+ | PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP
+ | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT
+ | PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP,
+ .func[1] = PMBUS_HAVE_VIN
+ | PMBUS_HAVE_VOUT | PMBUS_HAVE_IIN
+ | PMBUS_HAVE_IOUT | PMBUS_HAVE_PIN
+ | PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP
+ | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT
+ | PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP,
+ .func[2] = PMBUS_HAVE_VIN
+ | PMBUS_HAVE_VOUT | PMBUS_HAVE_IIN
+ | PMBUS_HAVE_IOUT | PMBUS_HAVE_PIN
+ | PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP
+ | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT
+ | PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP,
+ .identify = pxe1610_identify,
+};
+
+static int pxe1610_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct pmbus_driver_info *info;
+ u8 buf[I2C_SMBUS_BLOCK_MAX];
+ int ret;
+
+ if (!i2c_check_functionality(
+ client->adapter,
+ I2C_FUNC_SMBUS_READ_BYTE_DATA
+ | I2C_FUNC_SMBUS_READ_WORD_DATA
+ | I2C_FUNC_SMBUS_READ_BLOCK_DATA))
+ return -ENODEV;
+
+ /*
+ * By default this device doesn't boot to page 0, so set page 0
+ * to access all pmbus registers.
+ */
+ i2c_smbus_write_byte_data(client, PMBUS_PAGE, 0);
+
+ /* Read Manufacturer id */
+ ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, buf);
+ if (ret < 0) {
+ dev_err(&client->dev, "Failed to read PMBUS_MFR_ID\n");
+ return ret;
+ }
+ if (ret != 2 || strncmp(buf, "XP", 2)) {
+ dev_err(&client->dev, "MFR_ID unrecognized\n");
+ return -ENODEV;
+ }
+
+ info = devm_kmemdup(&client->dev, &pxe1610_info,
+ sizeof(struct pmbus_driver_info),
+ GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ return pmbus_do_probe(client, id, info);
+}
+
+static const struct i2c_device_id pxe1610_id[] = {
+ {"pxe1610", 0},
+ {"pxe1110", 0},
+ {"pxm1310", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, pxe1610_id);
+
+static struct i2c_driver pxe1610_driver = {
+ .driver = {
+ .name = "pxe1610",
+ },
+ .probe = pxe1610_probe,
+ .remove = pmbus_do_remove,
+ .id_table = pxe1610_id,
+};
+
+module_i2c_driver(pxe1610_driver);
+
+MODULE_AUTHOR("Vijay Khemka <vijaykhemka@fb.com>");
+MODULE_DESCRIPTION("PMBus driver for Infineon PXE1610, PXE1110 and PXM1310");
+MODULE_LICENSE("GPL");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.