* [PATCH v3 2/2] hwmon: pmbus: Add Inspur Power System power supply driver
@ 2019-08-12 2:53 John Wang
2019-08-12 4:21 ` Guenter Roeck
0 siblings, 1 reply; 4+ messages in thread
From: John Wang @ 2019-08-12 2:53 UTC (permalink / raw)
To: jdelvare, linux, corbet, linux-hwmon, linux-doc, linux-kernel,
miltonm, mine260309, duanzhijia01, joel, openbmc
Add the driver to monitor Inspur Power System power supplies
with hwmon over pmbus.
This driver adds sysfs attributes for additional power supply data,
including vendor, model, part_number, serial number,
firmware revision, hardware revision, and psu mode(active/standby).
Signed-off-by: John Wang <wangzqbj@inspur.com>
---
v3:
- Sort kconfig/makefile entries alphabetically
- Remove unnecessary initialization
- Use ATTRIBUTE_GROUPS instead of expanding directly
- Use memscan to avoid reimplementation
v2:
- Fix typos in commit message
- Invert Christmas tree
- Configure device with sysfs attrs, not debugfs entries
- Fix errno in fw_version_read, ENODATA to EPROTO
- Change the print format of fw-version
- Use sysfs_streq instead of strcmp("xxx" "\n", "xxx")
- Document sysfs attributes
---
Documentation/hwmon/inspur-ipsps1.rst | 79 +++++++++
drivers/hwmon/pmbus/Kconfig | 9 +
drivers/hwmon/pmbus/Makefile | 41 ++---
drivers/hwmon/pmbus/inspur-ipsps.c | 226 ++++++++++++++++++++++++++
4 files changed, 335 insertions(+), 20 deletions(-)
create mode 100644 Documentation/hwmon/inspur-ipsps1.rst
create mode 100644 drivers/hwmon/pmbus/inspur-ipsps.c
diff --git a/Documentation/hwmon/inspur-ipsps1.rst b/Documentation/hwmon/inspur-ipsps1.rst
new file mode 100644
index 000000000000..aa19f0ccc8b0
--- /dev/null
+++ b/Documentation/hwmon/inspur-ipsps1.rst
@@ -0,0 +1,79 @@
+Kernel driver inspur-ipsps1
+=======================
+
+Supported chips:
+
+ * Inspur Power System power supply unit
+
+Author: John Wang <wangzqbj@inspur.com>
+
+Description
+-----------
+
+This driver supports Inspur Power System power supplies. This driver
+is a client to the core PMBus driver.
+
+Usage Notes
+-----------
+
+This driver does not auto-detect devices. You will have to instantiate the
+devices explicitly. Please see Documentation/i2c/instantiating-devices for
+details.
+
+Sysfs entries
+-------------
+
+The following attributes are supported:
+
+======================= ======================================================
+curr1_input Measured input current
+curr1_label "iin"
+curr1_max Maximum current
+curr1_max_alarm Current high alarm
+curr2_input Measured output current in mA.
+curr2_label "iout1"
+curr2_crit Critical maximum current
+curr2_crit_alarm Current critical high alarm
+curr2_max Maximum current
+curr2_max_alarm Current high alarm
+
+fan1_alarm Fan 1 warning.
+fan1_fault Fan 1 fault.
+fan1_input Fan 1 speed in RPM.
+
+in1_alarm Input voltage under-voltage alarm.
+in1_input Measured input voltage in mV.
+in1_label "vin"
+in2_input Measured output voltage in mV.
+in2_label "vout1"
+in2_lcrit Critical minimum output voltage
+in2_lcrit_alarm Output voltage critical low alarm
+in2_max Maximum output voltage
+in2_max_alarm Output voltage high alarm
+in2_min Minimum output voltage
+in2_min_alarm Output voltage low alarm
+
+power1_alarm Input fault or alarm.
+power1_input Measured input power in uW.
+power1_label "pin"
+power1_max Input power limit
+power2_max_alarm Output power high alarm
+power2_max Output power limit
+power2_input Measured output power in uW.
+power2_label "pout"
+
+temp[1-3]_input Measured temperature
+temp[1-2]_max Maximum temperature
+temp[1-3]_max_alarm Temperature high alarm
+
+vendor Manufacturer name
+model Product model
+part_number Product part number
+serial_number Product serial number
+fw_version Firmware version
+hw_version Hardware version
+mode Work mode. Can be set to active or
+ standby, when set to standby, PSU will
+ automatically switch between standby
+ and redundancy mode.
+======================= ======================================================
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 30751eb9550a..2370fce6e816 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -46,6 +46,15 @@ config SENSORS_IBM_CFFPS
This driver can also be built as a module. If so, the module will
be called ibm-cffps.
+config SENSORS_INSPUR_IPSPS
+ tristate "INSPUR Power System Power Supply"
+ help
+ If you say yes here you get hardware monitoring support for the INSPUR
+ Power System power supply.
+
+ This driver can also be built as a module. If so, the module will
+ be called inspur-ipsps.
+
config SENSORS_IR35221
tristate "Infineon IR35221"
help
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
index 2219b9300316..c4f82f65f2ad 100644
--- a/drivers/hwmon/pmbus/Makefile
+++ b/drivers/hwmon/pmbus/Makefile
@@ -3,23 +3,24 @@
# Makefile for PMBus chip drivers.
#
-obj-$(CONFIG_PMBUS) += pmbus_core.o
-obj-$(CONFIG_SENSORS_PMBUS) += pmbus.o
-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-$(CONFIG_SENSORS_ISL68137) += isl68137.o
-obj-$(CONFIG_SENSORS_LM25066) += lm25066.o
-obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o
-obj-$(CONFIG_SENSORS_LTC3815) += ltc3815.o
-obj-$(CONFIG_SENSORS_MAX16064) += max16064.o
-obj-$(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_TPS40422) += tps40422.o
-obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
-obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
-obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o
-obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o
+obj-$(CONFIG_PMBUS) += pmbus_core.o
+obj-$(CONFIG_SENSORS_PMBUS) += pmbus.o
+obj-$(CONFIG_SENSORS_ADM1275) += adm1275.o
+obj-$(CONFIG_SENSORS_IBM_CFFPS) += ibm-cffps.o
+obj-$(CONFIG_SENSORS_INSPUR_IPSPS) += inspur-ipsps.o
+obj-$(CONFIG_SENSORS_IR35221) += ir35221.o
+obj-$(CONFIG_SENSORS_IR38064) += ir38064.o
+obj-$(CONFIG_SENSORS_ISL68137) += isl68137.o
+obj-$(CONFIG_SENSORS_LM25066) += lm25066.o
+obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o
+obj-$(CONFIG_SENSORS_LTC3815) += ltc3815.o
+obj-$(CONFIG_SENSORS_MAX16064) += max16064.o
+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-$(CONFIG_SENSORS_TPS40422) += tps40422.o
+obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
+obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
+obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o
+obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o
diff --git a/drivers/hwmon/pmbus/inspur-ipsps.c b/drivers/hwmon/pmbus/inspur-ipsps.c
new file mode 100644
index 000000000000..fa981b881a60
--- /dev/null
+++ b/drivers/hwmon/pmbus/inspur-ipsps.c
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2019 Inspur Corp.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/pmbus.h>
+#include <linux/hwmon-sysfs.h>
+
+#include "pmbus.h"
+
+#define IPSPS_REG_VENDOR_ID 0x99
+#define IPSPS_REG_MODEL 0x9A
+#define IPSPS_REG_FW_VERSION 0x9B
+#define IPSPS_REG_PN 0x9C
+#define IPSPS_REG_SN 0x9E
+#define IPSPS_REG_HW_VERSION 0xB0
+#define IPSPS_REG_MODE 0xFC
+
+#define MODE_ACTIVE 0x55
+#define MODE_STANDBY 0x0E
+#define MODE_REDUNDANCY 0x00
+
+#define MODE_ACTIVE_STRING "active"
+#define MODE_STANDBY_STRING "standby"
+#define MODE_REDUNDANCY_STRING "redundancy"
+
+enum ipsps_index {
+ vendor,
+ model,
+ fw_version,
+ part_number,
+ serial_number,
+ hw_version,
+ mode,
+ num_regs,
+};
+
+static const u8 ipsps_regs[num_regs] = {
+ [vendor] = IPSPS_REG_VENDOR_ID,
+ [model] = IPSPS_REG_MODEL,
+ [fw_version] = IPSPS_REG_FW_VERSION,
+ [part_number] = IPSPS_REG_PN,
+ [serial_number] = IPSPS_REG_SN,
+ [hw_version] = IPSPS_REG_HW_VERSION,
+ [mode] = IPSPS_REG_MODE,
+};
+
+static ssize_t ipsps_string_show(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ u8 reg;
+ int rc;
+ char *p;
+ char data[I2C_SMBUS_BLOCK_MAX + 1];
+ struct i2c_client *client = to_i2c_client(dev->parent);
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+
+ reg = ipsps_regs[attr->index];
+ rc = i2c_smbus_read_block_data(client, reg, data);
+ if (rc < 0)
+ return rc;
+
+ /* filled with printable characters, ending with # */
+ p = memscan(data, '#', rc);
+ *p = '\0';
+
+ return snprintf(buf, PAGE_SIZE, "%s\n", data);
+}
+
+static ssize_t ipsps_fw_version_show(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ u8 reg;
+ int rc;
+ u8 data[I2C_SMBUS_BLOCK_MAX] = { 0 };
+ struct i2c_client *client = to_i2c_client(dev->parent);
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+
+ reg = ipsps_regs[attr->index];
+ rc = i2c_smbus_read_block_data(client, reg, data);
+ if (rc < 0)
+ return rc;
+
+ if (rc != 6)
+ return -EPROTO;
+
+ return snprintf(buf, PAGE_SIZE, "%u.%02u%u-%u.%02u\n",
+ data[1], data[2]/* < 100 */, data[3]/*< 10*/,
+ data[4], data[5]/* < 100 */);
+}
+
+static ssize_t ipsps_mode_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ u8 reg;
+ int rc;
+ struct i2c_client *client = to_i2c_client(dev->parent);
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+
+ reg = ipsps_regs[attr->index];
+ rc = i2c_smbus_read_byte_data(client, reg);
+ if (rc < 0)
+ return rc;
+
+ switch (rc) {
+ case MODE_ACTIVE:
+ return snprintf(buf, PAGE_SIZE, "[%s] %s %s\n",
+ MODE_ACTIVE_STRING,
+ MODE_STANDBY_STRING, MODE_REDUNDANCY_STRING);
+ case MODE_STANDBY:
+ return snprintf(buf, PAGE_SIZE, "%s [%s] %s\n",
+ MODE_ACTIVE_STRING,
+ MODE_STANDBY_STRING, MODE_REDUNDANCY_STRING);
+ case MODE_REDUNDANCY:
+ return snprintf(buf, PAGE_SIZE, "%s %s [%s]\n",
+ MODE_ACTIVE_STRING,
+ MODE_STANDBY_STRING, MODE_REDUNDANCY_STRING);
+ default:
+ return snprintf(buf, PAGE_SIZE, "unspecified\n");
+ }
+}
+
+static ssize_t ipsps_mode_store(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ u8 reg;
+ int rc;
+ struct i2c_client *client = to_i2c_client(dev->parent);
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+
+ reg = ipsps_regs[attr->index];
+ if (sysfs_streq(MODE_STANDBY_STRING, buf)) {
+ rc = i2c_smbus_write_byte_data(client, reg,
+ MODE_STANDBY);
+ if (rc < 0)
+ return rc;
+ return count;
+ } else if (sysfs_streq(MODE_ACTIVE_STRING, buf)) {
+ rc = i2c_smbus_write_byte_data(client, reg,
+ MODE_ACTIVE);
+ if (rc < 0)
+ return rc;
+ return count;
+ }
+
+ return -EINVAL;
+}
+
+static SENSOR_DEVICE_ATTR_RO(vendor, ipsps_string, vendor);
+static SENSOR_DEVICE_ATTR_RO(model, ipsps_string, model);
+static SENSOR_DEVICE_ATTR_RO(part_number, ipsps_string, part_number);
+static SENSOR_DEVICE_ATTR_RO(serial_number, ipsps_string, serial_number);
+static SENSOR_DEVICE_ATTR_RO(hw_version, ipsps_string, hw_version);
+static SENSOR_DEVICE_ATTR_RO(fw_version, ipsps_fw_version, fw_version);
+static SENSOR_DEVICE_ATTR_RW(mode, ipsps_mode, mode);
+
+static struct attribute *ipsps_attrs[] = {
+ &sensor_dev_attr_vendor.dev_attr.attr,
+ &sensor_dev_attr_model.dev_attr.attr,
+ &sensor_dev_attr_part_number.dev_attr.attr,
+ &sensor_dev_attr_serial_number.dev_attr.attr,
+ &sensor_dev_attr_hw_version.dev_attr.attr,
+ &sensor_dev_attr_fw_version.dev_attr.attr,
+ &sensor_dev_attr_mode.dev_attr.attr,
+ NULL,
+};
+
+ATTRIBUTE_GROUPS(ipsps);
+
+static struct pmbus_driver_info ipsps_info = {
+ .pages = 1,
+ .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT |
+ PMBUS_HAVE_IIN | PMBUS_HAVE_POUT | PMBUS_HAVE_PIN |
+ PMBUS_HAVE_FAN12 | PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 |
+ PMBUS_HAVE_TEMP3 | PMBUS_HAVE_STATUS_VOUT |
+ PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT |
+ PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_STATUS_FAN12,
+ .groups = ipsps_groups,
+};
+
+static struct pmbus_platform_data ipsps_pdata = {
+ .flags = PMBUS_SKIP_STATUS_CHECK,
+};
+
+static int ipsps_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ client->dev.platform_data = &ipsps_pdata;
+ return pmbus_do_probe(client, id, &ipsps_info);
+}
+
+static const struct i2c_device_id ipsps_id[] = {
+ { "inspur_ipsps1", 0 },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, ipsps_id);
+
+static const struct of_device_id ipsps_of_match[] = {
+ { .compatible = "inspur,ipsps1" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, ipsps_of_match);
+
+static struct i2c_driver ipsps_driver = {
+ .driver = {
+ .name = "inspur-ipsps",
+ .of_match_table = ipsps_of_match,
+ },
+ .probe = ipsps_probe,
+ .remove = pmbus_do_remove,
+ .id_table = ipsps_id,
+};
+
+module_i2c_driver(ipsps_driver);
+
+MODULE_AUTHOR("John Wang");
+MODULE_DESCRIPTION("PMBus driver for Inspur Power System power supplies");
+MODULE_LICENSE("GPL");
--
2.17.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH v3 2/2] hwmon: pmbus: Add Inspur Power System power supply driver
2019-08-12 2:53 [PATCH v3 2/2] hwmon: pmbus: Add Inspur Power System power supply driver John Wang
@ 2019-08-12 4:21 ` Guenter Roeck
2019-08-12 4:48 ` John Wang
0 siblings, 1 reply; 4+ messages in thread
From: Guenter Roeck @ 2019-08-12 4:21 UTC (permalink / raw)
To: John Wang, jdelvare, corbet, linux-hwmon, linux-doc,
linux-kernel, miltonm, mine260309, duanzhijia01, joel, openbmc
On 8/11/19 7:53 PM, John Wang wrote:
> Add the driver to monitor Inspur Power System power supplies
> with hwmon over pmbus.
>
> This driver adds sysfs attributes for additional power supply data,
> including vendor, model, part_number, serial number,
> firmware revision, hardware revision, and psu mode(active/standby).
>
> Signed-off-by: John Wang <wangzqbj@inspur.com>
> ---
> v3:
> - Sort kconfig/makefile entries alphabetically
> - Remove unnecessary initialization
> - Use ATTRIBUTE_GROUPS instead of expanding directly
> - Use memscan to avoid reimplementation
> v2:
> - Fix typos in commit message
> - Invert Christmas tree
> - Configure device with sysfs attrs, not debugfs entries
> - Fix errno in fw_version_read, ENODATA to EPROTO
> - Change the print format of fw-version
> - Use sysfs_streq instead of strcmp("xxx" "\n", "xxx")
> - Document sysfs attributes
> ---
> Documentation/hwmon/inspur-ipsps1.rst | 79 +++++++++
> drivers/hwmon/pmbus/Kconfig | 9 +
> drivers/hwmon/pmbus/Makefile | 41 ++---
> drivers/hwmon/pmbus/inspur-ipsps.c | 226 ++++++++++++++++++++++++++
> 4 files changed, 335 insertions(+), 20 deletions(-)
> create mode 100644 Documentation/hwmon/inspur-ipsps1.rst
> create mode 100644 drivers/hwmon/pmbus/inspur-ipsps.c
>
> diff --git a/Documentation/hwmon/inspur-ipsps1.rst b/Documentation/hwmon/inspur-ipsps1.rst
> new file mode 100644
> index 000000000000..aa19f0ccc8b0
> --- /dev/null
> +++ b/Documentation/hwmon/inspur-ipsps1.rst
> @@ -0,0 +1,79 @@
> +Kernel driver inspur-ipsps1
> +=======================
> +
> +Supported chips:
> +
> + * Inspur Power System power supply unit
> +
> +Author: John Wang <wangzqbj@inspur.com>
> +
> +Description
> +-----------
> +
> +This driver supports Inspur Power System power supplies. This driver
> +is a client to the core PMBus driver.
> +
> +Usage Notes
> +-----------
> +
> +This driver does not auto-detect devices. You will have to instantiate the
> +devices explicitly. Please see Documentation/i2c/instantiating-devices for
> +details.
> +
> +Sysfs entries
> +-------------
> +
> +The following attributes are supported:
> +
> +======================= ======================================================
> +curr1_input Measured input current
> +curr1_label "iin"
> +curr1_max Maximum current
> +curr1_max_alarm Current high alarm
> +curr2_input Measured output current in mA.
> +curr2_label "iout1"
> +curr2_crit Critical maximum current
> +curr2_crit_alarm Current critical high alarm
> +curr2_max Maximum current
> +curr2_max_alarm Current high alarm
> +
> +fan1_alarm Fan 1 warning.
> +fan1_fault Fan 1 fault.
> +fan1_input Fan 1 speed in RPM.
> +
> +in1_alarm Input voltage under-voltage alarm.
> +in1_input Measured input voltage in mV.
> +in1_label "vin"
> +in2_input Measured output voltage in mV.
> +in2_label "vout1"
> +in2_lcrit Critical minimum output voltage
> +in2_lcrit_alarm Output voltage critical low alarm
> +in2_max Maximum output voltage
> +in2_max_alarm Output voltage high alarm
> +in2_min Minimum output voltage
> +in2_min_alarm Output voltage low alarm
> +
> +power1_alarm Input fault or alarm.
> +power1_input Measured input power in uW.
> +power1_label "pin"
> +power1_max Input power limit
> +power2_max_alarm Output power high alarm
> +power2_max Output power limit
> +power2_input Measured output power in uW.
> +power2_label "pout"
> +
> +temp[1-3]_input Measured temperature
> +temp[1-2]_max Maximum temperature
> +temp[1-3]_max_alarm Temperature high alarm
> +
> +vendor Manufacturer name
> +model Product model
> +part_number Product part number
> +serial_number Product serial number
> +fw_version Firmware version
> +hw_version Hardware version
> +mode Work mode. Can be set to active or
> + standby, when set to standby, PSU will
> + automatically switch between standby
> + and redundancy mode.
> +======================= ======================================================
> diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
> index 30751eb9550a..2370fce6e816 100644
> --- a/drivers/hwmon/pmbus/Kconfig
> +++ b/drivers/hwmon/pmbus/Kconfig
> @@ -46,6 +46,15 @@ config SENSORS_IBM_CFFPS
> This driver can also be built as a module. If so, the module will
> be called ibm-cffps.
>
> +config SENSORS_INSPUR_IPSPS
> + tristate "INSPUR Power System Power Supply"
> + help
> + If you say yes here you get hardware monitoring support for the INSPUR
> + Power System power supply.
> +
> + This driver can also be built as a module. If so, the module will
> + be called inspur-ipsps.
> +
> config SENSORS_IR35221
> tristate "Infineon IR35221"
> help
> diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
> index 2219b9300316..c4f82f65f2ad 100644
> --- a/drivers/hwmon/pmbus/Makefile
> +++ b/drivers/hwmon/pmbus/Makefile
> @@ -3,23 +3,24 @@
> # Makefile for PMBus chip drivers.
> #
>
> -obj-$(CONFIG_PMBUS) += pmbus_core.o
> -obj-$(CONFIG_SENSORS_PMBUS) += pmbus.o
> -obj-$(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_ISL68137) += isl68137.o
> -obj-$(CONFIG_SENSORS_LM25066) += lm25066.o
> -obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o
> -obj-$(CONFIG_SENSORS_LTC3815) += ltc3815.o
> -obj-$(CONFIG_SENSORS_MAX16064) += max16064.o
> -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-$(CONFIG_SENSORS_TPS40422) += tps40422.o
> -obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
> -obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
> -obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o
> -obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o
> +obj-$(CONFIG_PMBUS) += pmbus_core.o
> +obj-$(CONFIG_SENSORS_PMBUS) += pmbus.o
> +obj-$(CONFIG_SENSORS_ADM1275) += adm1275.o
> +obj-$(CONFIG_SENSORS_IBM_CFFPS) += ibm-cffps.o
> +obj-$(CONFIG_SENSORS_INSPUR_IPSPS) += inspur-ipsps.o
> +obj-$(CONFIG_SENSORS_IR35221) += ir35221.o
> +obj-$(CONFIG_SENSORS_IR38064) += ir38064.o
> +obj-$(CONFIG_SENSORS_ISL68137) += isl68137.o
> +obj-$(CONFIG_SENSORS_LM25066) += lm25066.o
> +obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o
> +obj-$(CONFIG_SENSORS_LTC3815) += ltc3815.o
> +obj-$(CONFIG_SENSORS_MAX16064) += max16064.o
> +obj-$(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_TPS40422) += tps40422.o
> +obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
> +obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
> +obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o
> +obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o
Are you serious ? I am not going to accept this.
Guenter
> diff --git a/drivers/hwmon/pmbus/inspur-ipsps.c b/drivers/hwmon/pmbus/inspur-ipsps.c
> new file mode 100644
> index 000000000000..fa981b881a60
> --- /dev/null
> +++ b/drivers/hwmon/pmbus/inspur-ipsps.c
> @@ -0,0 +1,226 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Copyright 2019 Inspur Corp.
> + */
> +
> +#include <linux/debugfs.h>
> +#include <linux/device.h>
> +#include <linux/fs.h>
> +#include <linux/i2c.h>
> +#include <linux/module.h>
> +#include <linux/pmbus.h>
> +#include <linux/hwmon-sysfs.h>
> +
> +#include "pmbus.h"
> +
> +#define IPSPS_REG_VENDOR_ID 0x99
> +#define IPSPS_REG_MODEL 0x9A
> +#define IPSPS_REG_FW_VERSION 0x9B
> +#define IPSPS_REG_PN 0x9C
> +#define IPSPS_REG_SN 0x9E
> +#define IPSPS_REG_HW_VERSION 0xB0
> +#define IPSPS_REG_MODE 0xFC
> +
> +#define MODE_ACTIVE 0x55
> +#define MODE_STANDBY 0x0E
> +#define MODE_REDUNDANCY 0x00
> +
> +#define MODE_ACTIVE_STRING "active"
> +#define MODE_STANDBY_STRING "standby"
> +#define MODE_REDUNDANCY_STRING "redundancy"
> +
> +enum ipsps_index {
> + vendor,
> + model,
> + fw_version,
> + part_number,
> + serial_number,
> + hw_version,
> + mode,
> + num_regs,
> +};
> +
> +static const u8 ipsps_regs[num_regs] = {
> + [vendor] = IPSPS_REG_VENDOR_ID,
> + [model] = IPSPS_REG_MODEL,
> + [fw_version] = IPSPS_REG_FW_VERSION,
> + [part_number] = IPSPS_REG_PN,
> + [serial_number] = IPSPS_REG_SN,
> + [hw_version] = IPSPS_REG_HW_VERSION,
> + [mode] = IPSPS_REG_MODE,
> +};
> +
> +static ssize_t ipsps_string_show(struct device *dev,
> + struct device_attribute *devattr,
> + char *buf)
> +{
> + u8 reg;
> + int rc;
> + char *p;
> + char data[I2C_SMBUS_BLOCK_MAX + 1];
> + struct i2c_client *client = to_i2c_client(dev->parent);
> + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
> +
> + reg = ipsps_regs[attr->index];
> + rc = i2c_smbus_read_block_data(client, reg, data);
> + if (rc < 0)
> + return rc;
> +
> + /* filled with printable characters, ending with # */
> + p = memscan(data, '#', rc);
> + *p = '\0';
> +
> + return snprintf(buf, PAGE_SIZE, "%s\n", data);
> +}
> +
> +static ssize_t ipsps_fw_version_show(struct device *dev,
> + struct device_attribute *devattr,
> + char *buf)
> +{
> + u8 reg;
> + int rc;
> + u8 data[I2C_SMBUS_BLOCK_MAX] = { 0 };
> + struct i2c_client *client = to_i2c_client(dev->parent);
> + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
> +
> + reg = ipsps_regs[attr->index];
> + rc = i2c_smbus_read_block_data(client, reg, data);
> + if (rc < 0)
> + return rc;
> +
> + if (rc != 6)
> + return -EPROTO;
> +
> + return snprintf(buf, PAGE_SIZE, "%u.%02u%u-%u.%02u\n",
> + data[1], data[2]/* < 100 */, data[3]/*< 10*/,
> + data[4], data[5]/* < 100 */);
> +}
> +
> +static ssize_t ipsps_mode_show(struct device *dev,
> + struct device_attribute *devattr, char *buf)
> +{
> + u8 reg;
> + int rc;
> + struct i2c_client *client = to_i2c_client(dev->parent);
> + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
> +
> + reg = ipsps_regs[attr->index];
> + rc = i2c_smbus_read_byte_data(client, reg);
> + if (rc < 0)
> + return rc;
> +
> + switch (rc) {
> + case MODE_ACTIVE:
> + return snprintf(buf, PAGE_SIZE, "[%s] %s %s\n",
> + MODE_ACTIVE_STRING,
> + MODE_STANDBY_STRING, MODE_REDUNDANCY_STRING);
> + case MODE_STANDBY:
> + return snprintf(buf, PAGE_SIZE, "%s [%s] %s\n",
> + MODE_ACTIVE_STRING,
> + MODE_STANDBY_STRING, MODE_REDUNDANCY_STRING);
> + case MODE_REDUNDANCY:
> + return snprintf(buf, PAGE_SIZE, "%s %s [%s]\n",
> + MODE_ACTIVE_STRING,
> + MODE_STANDBY_STRING, MODE_REDUNDANCY_STRING);
> + default:
> + return snprintf(buf, PAGE_SIZE, "unspecified\n");
> + }
> +}
> +
> +static ssize_t ipsps_mode_store(struct device *dev,
> + struct device_attribute *devattr,
> + const char *buf, size_t count)
> +{
> + u8 reg;
> + int rc;
> + struct i2c_client *client = to_i2c_client(dev->parent);
> + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
> +
> + reg = ipsps_regs[attr->index];
> + if (sysfs_streq(MODE_STANDBY_STRING, buf)) {
> + rc = i2c_smbus_write_byte_data(client, reg,
> + MODE_STANDBY);
> + if (rc < 0)
> + return rc;
> + return count;
> + } else if (sysfs_streq(MODE_ACTIVE_STRING, buf)) {
> + rc = i2c_smbus_write_byte_data(client, reg,
> + MODE_ACTIVE);
> + if (rc < 0)
> + return rc;
> + return count;
> + }
> +
> + return -EINVAL;
> +}
> +
> +static SENSOR_DEVICE_ATTR_RO(vendor, ipsps_string, vendor);
> +static SENSOR_DEVICE_ATTR_RO(model, ipsps_string, model);
> +static SENSOR_DEVICE_ATTR_RO(part_number, ipsps_string, part_number);
> +static SENSOR_DEVICE_ATTR_RO(serial_number, ipsps_string, serial_number);
> +static SENSOR_DEVICE_ATTR_RO(hw_version, ipsps_string, hw_version);
> +static SENSOR_DEVICE_ATTR_RO(fw_version, ipsps_fw_version, fw_version);
> +static SENSOR_DEVICE_ATTR_RW(mode, ipsps_mode, mode);
> +
> +static struct attribute *ipsps_attrs[] = {
> + &sensor_dev_attr_vendor.dev_attr.attr,
> + &sensor_dev_attr_model.dev_attr.attr,
> + &sensor_dev_attr_part_number.dev_attr.attr,
> + &sensor_dev_attr_serial_number.dev_attr.attr,
> + &sensor_dev_attr_hw_version.dev_attr.attr,
> + &sensor_dev_attr_fw_version.dev_attr.attr,
> + &sensor_dev_attr_mode.dev_attr.attr,
> + NULL,
> +};
> +
> +ATTRIBUTE_GROUPS(ipsps);
> +
> +static struct pmbus_driver_info ipsps_info = {
> + .pages = 1,
> + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT |
> + PMBUS_HAVE_IIN | PMBUS_HAVE_POUT | PMBUS_HAVE_PIN |
> + PMBUS_HAVE_FAN12 | PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 |
> + PMBUS_HAVE_TEMP3 | PMBUS_HAVE_STATUS_VOUT |
> + PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT |
> + PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_STATUS_FAN12,
> + .groups = ipsps_groups,
> +};
> +
> +static struct pmbus_platform_data ipsps_pdata = {
> + .flags = PMBUS_SKIP_STATUS_CHECK,
> +};
> +
> +static int ipsps_probe(struct i2c_client *client,
> + const struct i2c_device_id *id)
> +{
> + client->dev.platform_data = &ipsps_pdata;
> + return pmbus_do_probe(client, id, &ipsps_info);
> +}
> +
> +static const struct i2c_device_id ipsps_id[] = {
> + { "inspur_ipsps1", 0 },
> + {}
> +};
> +MODULE_DEVICE_TABLE(i2c, ipsps_id);
> +
> +static const struct of_device_id ipsps_of_match[] = {
> + { .compatible = "inspur,ipsps1" },
> + {}
> +};
> +MODULE_DEVICE_TABLE(of, ipsps_of_match);
> +
> +static struct i2c_driver ipsps_driver = {
> + .driver = {
> + .name = "inspur-ipsps",
> + .of_match_table = ipsps_of_match,
> + },
> + .probe = ipsps_probe,
> + .remove = pmbus_do_remove,
> + .id_table = ipsps_id,
> +};
> +
> +module_i2c_driver(ipsps_driver);
> +
> +MODULE_AUTHOR("John Wang");
> +MODULE_DESCRIPTION("PMBus driver for Inspur Power System power supplies");
> +MODULE_LICENSE("GPL");
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH v3 2/2] hwmon: pmbus: Add Inspur Power System power supply driver
2019-08-12 4:21 ` Guenter Roeck
@ 2019-08-12 4:48 ` John Wang
2019-08-12 19:33 ` Guenter Roeck
0 siblings, 1 reply; 4+ messages in thread
From: John Wang @ 2019-08-12 4:48 UTC (permalink / raw)
To: Guenter Roeck
Cc: jdelvare, corbet, linux-hwmon, linux-doc, linux-kernel, miltonm,
Yu Lei, duanzhijia01, Joel Stanley, OpenBMC Maillist
On Mon, Aug 12, 2019 at 12:21 PM Guenter Roeck <linux@roeck-us.net> wrote:
>
> On 8/11/19 7:53 PM, John Wang wrote:
> > Add the driver to monitor Inspur Power System power supplies
> > with hwmon over pmbus.
> >
> > This driver adds sysfs attributes for additional power supply data,
> > including vendor, model, part_number, serial number,
> > firmware revision, hardware revision, and psu mode(active/standby).
> >
> > Signed-off-by: John Wang <wangzqbj@inspur.com>
> > ---
> > v3:
> > - Sort kconfig/makefile entries alphabetically
> > - Remove unnecessary initialization
> > - Use ATTRIBUTE_GROUPS instead of expanding directly
> > - Use memscan to avoid reimplementation
> > v2:
> > - Fix typos in commit message
> > - Invert Christmas tree
> > - Configure device with sysfs attrs, not debugfs entries
> > - Fix errno in fw_version_read, ENODATA to EPROTO
> > - Change the print format of fw-version
> > - Use sysfs_streq instead of strcmp("xxx" "\n", "xxx")
> > - Document sysfs attributes
> > ---
> > Documentation/hwmon/inspur-ipsps1.rst | 79 +++++++++
> > drivers/hwmon/pmbus/Kconfig | 9 +
> > drivers/hwmon/pmbus/Makefile | 41 ++---
> > drivers/hwmon/pmbus/inspur-ipsps.c | 226 ++++++++++++++++++++++++++
> > 4 files changed, 335 insertions(+), 20 deletions(-)
> > create mode 100644 Documentation/hwmon/inspur-ipsps1.rst
> > create mode 100644 drivers/hwmon/pmbus/inspur-ipsps.c
> >
> > diff --git a/Documentation/hwmon/inspur-ipsps1.rst b/Documentation/hwmon/inspur-ipsps1.rst
> > new file mode 100644
> > index 000000000000..aa19f0ccc8b0
> > --- /dev/null
> > +++ b/Documentation/hwmon/inspur-ipsps1.rst
> > @@ -0,0 +1,79 @@
> > +Kernel driver inspur-ipsps1
> > +=======================
> > +
> > +Supported chips:
> > +
> > + * Inspur Power System power supply unit
> > +
> > +Author: John Wang <wangzqbj@inspur.com>
> > +
> > +Description
> > +-----------
> > +
> > +This driver supports Inspur Power System power supplies. This driver
> > +is a client to the core PMBus driver.
> > +
> > +Usage Notes
> > +-----------
> > +
> > +This driver does not auto-detect devices. You will have to instantiate the
> > +devices explicitly. Please see Documentation/i2c/instantiating-devices for
> > +details.
> > +
> > +Sysfs entries
> > +-------------
> > +
> > +The following attributes are supported:
> > +
> > +======================= ======================================================
> > +curr1_input Measured input current
> > +curr1_label "iin"
> > +curr1_max Maximum current
> > +curr1_max_alarm Current high alarm
> > +curr2_input Measured output current in mA.
> > +curr2_label "iout1"
> > +curr2_crit Critical maximum current
> > +curr2_crit_alarm Current critical high alarm
> > +curr2_max Maximum current
> > +curr2_max_alarm Current high alarm
> > +
> > +fan1_alarm Fan 1 warning.
> > +fan1_fault Fan 1 fault.
> > +fan1_input Fan 1 speed in RPM.
> > +
> > +in1_alarm Input voltage under-voltage alarm.
> > +in1_input Measured input voltage in mV.
> > +in1_label "vin"
> > +in2_input Measured output voltage in mV.
> > +in2_label "vout1"
> > +in2_lcrit Critical minimum output voltage
> > +in2_lcrit_alarm Output voltage critical low alarm
> > +in2_max Maximum output voltage
> > +in2_max_alarm Output voltage high alarm
> > +in2_min Minimum output voltage
> > +in2_min_alarm Output voltage low alarm
> > +
> > +power1_alarm Input fault or alarm.
> > +power1_input Measured input power in uW.
> > +power1_label "pin"
> > +power1_max Input power limit
> > +power2_max_alarm Output power high alarm
> > +power2_max Output power limit
> > +power2_input Measured output power in uW.
> > +power2_label "pout"
> > +
> > +temp[1-3]_input Measured temperature
> > +temp[1-2]_max Maximum temperature
> > +temp[1-3]_max_alarm Temperature high alarm
> > +
> > +vendor Manufacturer name
> > +model Product model
> > +part_number Product part number
> > +serial_number Product serial number
> > +fw_version Firmware version
> > +hw_version Hardware version
> > +mode Work mode. Can be set to active or
> > + standby, when set to standby, PSU will
> > + automatically switch between standby
> > + and redundancy mode.
> > +======================= ======================================================
> > diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
> > index 30751eb9550a..2370fce6e816 100644
> > --- a/drivers/hwmon/pmbus/Kconfig
> > +++ b/drivers/hwmon/pmbus/Kconfig
> > @@ -46,6 +46,15 @@ config SENSORS_IBM_CFFPS
> > This driver can also be built as a module. If so, the module will
> > be called ibm-cffps.
> >
> > +config SENSORS_INSPUR_IPSPS
> > + tristate "INSPUR Power System Power Supply"
> > + help
> > + If you say yes here you get hardware monitoring support for the INSPUR
> > + Power System power supply.
> > +
> > + This driver can also be built as a module. If so, the module will
> > + be called inspur-ipsps.
> > +
> > config SENSORS_IR35221
> > tristate "Infineon IR35221"
> > help
> > diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
> > index 2219b9300316..c4f82f65f2ad 100644
> > --- a/drivers/hwmon/pmbus/Makefile
> > +++ b/drivers/hwmon/pmbus/Makefile
> > @@ -3,23 +3,24 @@
> > # Makefile for PMBus chip drivers.
> > #
> >
> > -obj-$(CONFIG_PMBUS) += pmbus_core.o
> > -obj-$(CONFIG_SENSORS_PMBUS) += pmbus.o
> > -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-$(CONFIG_SENSORS_ISL68137) += isl68137.o
> > -obj-$(CONFIG_SENSORS_LM25066) += lm25066.o
> > -obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o
> > -obj-$(CONFIG_SENSORS_LTC3815) += ltc3815.o
> > -obj-$(CONFIG_SENSORS_MAX16064) += max16064.o
> > -obj-$(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_TPS40422) += tps40422.o
> > -obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
> > -obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
> > -obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o
> > -obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o
> > +obj-$(CONFIG_PMBUS) += pmbus_core.o
> > +obj-$(CONFIG_SENSORS_PMBUS) += pmbus.o
> > +obj-$(CONFIG_SENSORS_ADM1275) += adm1275.o
> > +obj-$(CONFIG_SENSORS_IBM_CFFPS) += ibm-cffps.o
> > +obj-$(CONFIG_SENSORS_INSPUR_IPSPS) += inspur-ipsps.o
> > +obj-$(CONFIG_SENSORS_IR35221) += ir35221.o
> > +obj-$(CONFIG_SENSORS_IR38064) += ir38064.o
> > +obj-$(CONFIG_SENSORS_ISL68137) += isl68137.o
> > +obj-$(CONFIG_SENSORS_LM25066) += lm25066.o
> > +obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o
> > +obj-$(CONFIG_SENSORS_LTC3815) += ltc3815.o
> > +obj-$(CONFIG_SENSORS_MAX16064) += max16064.o
> > +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-$(CONFIG_SENSORS_TPS40422) += tps40422.o
> > +obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
> > +obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
> > +obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o
> > +obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o
>
> Are you serious ? I am not going to accept this.
Sorry for this commit.
I just want to add SENSORS_INSPUR_IPSPS to the makefile in
alphabetical order. But this will make the makefile look less tidy, so
I added a tab to adjust.
So I should
1. Add SENSOR_INSPUR_IPSPS to the end of the file
2. Add SENSOR_INSPUR_IPSPS in alphabetical order, without additional tab
3. other suggestions
Please let me know which one is better?
Thanks for your review.
>
> Guenter
>
> > diff --git a/drivers/hwmon/pmbus/inspur-ipsps.c b/drivers/hwmon/pmbus/inspur-ipsps.c
> > new file mode 100644
> > index 000000000000..fa981b881a60
> > --- /dev/null
> > +++ b/drivers/hwmon/pmbus/inspur-ipsps.c
> > @@ -0,0 +1,226 @@
> > +// SPDX-License-Identifier: GPL-2.0-or-later
> > +/*
> > + * Copyright 2019 Inspur Corp.
> > + */
> > +
> > +#include <linux/debugfs.h>
> > +#include <linux/device.h>
> > +#include <linux/fs.h>
> > +#include <linux/i2c.h>
> > +#include <linux/module.h>
> > +#include <linux/pmbus.h>
> > +#include <linux/hwmon-sysfs.h>
> > +
> > +#include "pmbus.h"
> > +
> > +#define IPSPS_REG_VENDOR_ID 0x99
> > +#define IPSPS_REG_MODEL 0x9A
> > +#define IPSPS_REG_FW_VERSION 0x9B
> > +#define IPSPS_REG_PN 0x9C
> > +#define IPSPS_REG_SN 0x9E
> > +#define IPSPS_REG_HW_VERSION 0xB0
> > +#define IPSPS_REG_MODE 0xFC
> > +
> > +#define MODE_ACTIVE 0x55
> > +#define MODE_STANDBY 0x0E
> > +#define MODE_REDUNDANCY 0x00
> > +
> > +#define MODE_ACTIVE_STRING "active"
> > +#define MODE_STANDBY_STRING "standby"
> > +#define MODE_REDUNDANCY_STRING "redundancy"
> > +
> > +enum ipsps_index {
> > + vendor,
> > + model,
> > + fw_version,
> > + part_number,
> > + serial_number,
> > + hw_version,
> > + mode,
> > + num_regs,
> > +};
> > +
> > +static const u8 ipsps_regs[num_regs] = {
> > + [vendor] = IPSPS_REG_VENDOR_ID,
> > + [model] = IPSPS_REG_MODEL,
> > + [fw_version] = IPSPS_REG_FW_VERSION,
> > + [part_number] = IPSPS_REG_PN,
> > + [serial_number] = IPSPS_REG_SN,
> > + [hw_version] = IPSPS_REG_HW_VERSION,
> > + [mode] = IPSPS_REG_MODE,
> > +};
> > +
> > +static ssize_t ipsps_string_show(struct device *dev,
> > + struct device_attribute *devattr,
> > + char *buf)
> > +{
> > + u8 reg;
> > + int rc;
> > + char *p;
> > + char data[I2C_SMBUS_BLOCK_MAX + 1];
> > + struct i2c_client *client = to_i2c_client(dev->parent);
> > + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
> > +
> > + reg = ipsps_regs[attr->index];
> > + rc = i2c_smbus_read_block_data(client, reg, data);
> > + if (rc < 0)
> > + return rc;
> > +
> > + /* filled with printable characters, ending with # */
> > + p = memscan(data, '#', rc);
> > + *p = '\0';
> > +
> > + return snprintf(buf, PAGE_SIZE, "%s\n", data);
> > +}
> > +
> > +static ssize_t ipsps_fw_version_show(struct device *dev,
> > + struct device_attribute *devattr,
> > + char *buf)
> > +{
> > + u8 reg;
> > + int rc;
> > + u8 data[I2C_SMBUS_BLOCK_MAX] = { 0 };
> > + struct i2c_client *client = to_i2c_client(dev->parent);
> > + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
> > +
> > + reg = ipsps_regs[attr->index];
> > + rc = i2c_smbus_read_block_data(client, reg, data);
> > + if (rc < 0)
> > + return rc;
> > +
> > + if (rc != 6)
> > + return -EPROTO;
> > +
> > + return snprintf(buf, PAGE_SIZE, "%u.%02u%u-%u.%02u\n",
> > + data[1], data[2]/* < 100 */, data[3]/*< 10*/,
> > + data[4], data[5]/* < 100 */);
> > +}
> > +
> > +static ssize_t ipsps_mode_show(struct device *dev,
> > + struct device_attribute *devattr, char *buf)
> > +{
> > + u8 reg;
> > + int rc;
> > + struct i2c_client *client = to_i2c_client(dev->parent);
> > + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
> > +
> > + reg = ipsps_regs[attr->index];
> > + rc = i2c_smbus_read_byte_data(client, reg);
> > + if (rc < 0)
> > + return rc;
> > +
> > + switch (rc) {
> > + case MODE_ACTIVE:
> > + return snprintf(buf, PAGE_SIZE, "[%s] %s %s\n",
> > + MODE_ACTIVE_STRING,
> > + MODE_STANDBY_STRING, MODE_REDUNDANCY_STRING);
> > + case MODE_STANDBY:
> > + return snprintf(buf, PAGE_SIZE, "%s [%s] %s\n",
> > + MODE_ACTIVE_STRING,
> > + MODE_STANDBY_STRING, MODE_REDUNDANCY_STRING);
> > + case MODE_REDUNDANCY:
> > + return snprintf(buf, PAGE_SIZE, "%s %s [%s]\n",
> > + MODE_ACTIVE_STRING,
> > + MODE_STANDBY_STRING, MODE_REDUNDANCY_STRING);
> > + default:
> > + return snprintf(buf, PAGE_SIZE, "unspecified\n");
> > + }
> > +}
> > +
> > +static ssize_t ipsps_mode_store(struct device *dev,
> > + struct device_attribute *devattr,
> > + const char *buf, size_t count)
> > +{
> > + u8 reg;
> > + int rc;
> > + struct i2c_client *client = to_i2c_client(dev->parent);
> > + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
> > +
> > + reg = ipsps_regs[attr->index];
> > + if (sysfs_streq(MODE_STANDBY_STRING, buf)) {
> > + rc = i2c_smbus_write_byte_data(client, reg,
> > + MODE_STANDBY);
> > + if (rc < 0)
> > + return rc;
> > + return count;
> > + } else if (sysfs_streq(MODE_ACTIVE_STRING, buf)) {
> > + rc = i2c_smbus_write_byte_data(client, reg,
> > + MODE_ACTIVE);
> > + if (rc < 0)
> > + return rc;
> > + return count;
> > + }
> > +
> > + return -EINVAL;
> > +}
> > +
> > +static SENSOR_DEVICE_ATTR_RO(vendor, ipsps_string, vendor);
> > +static SENSOR_DEVICE_ATTR_RO(model, ipsps_string, model);
> > +static SENSOR_DEVICE_ATTR_RO(part_number, ipsps_string, part_number);
> > +static SENSOR_DEVICE_ATTR_RO(serial_number, ipsps_string, serial_number);
> > +static SENSOR_DEVICE_ATTR_RO(hw_version, ipsps_string, hw_version);
> > +static SENSOR_DEVICE_ATTR_RO(fw_version, ipsps_fw_version, fw_version);
> > +static SENSOR_DEVICE_ATTR_RW(mode, ipsps_mode, mode);
> > +
> > +static struct attribute *ipsps_attrs[] = {
> > + &sensor_dev_attr_vendor.dev_attr.attr,
> > + &sensor_dev_attr_model.dev_attr.attr,
> > + &sensor_dev_attr_part_number.dev_attr.attr,
> > + &sensor_dev_attr_serial_number.dev_attr.attr,
> > + &sensor_dev_attr_hw_version.dev_attr.attr,
> > + &sensor_dev_attr_fw_version.dev_attr.attr,
> > + &sensor_dev_attr_mode.dev_attr.attr,
> > + NULL,
> > +};
> > +
> > +ATTRIBUTE_GROUPS(ipsps);
> > +
> > +static struct pmbus_driver_info ipsps_info = {
> > + .pages = 1,
> > + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT |
> > + PMBUS_HAVE_IIN | PMBUS_HAVE_POUT | PMBUS_HAVE_PIN |
> > + PMBUS_HAVE_FAN12 | PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 |
> > + PMBUS_HAVE_TEMP3 | PMBUS_HAVE_STATUS_VOUT |
> > + PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT |
> > + PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_STATUS_FAN12,
> > + .groups = ipsps_groups,
> > +};
> > +
> > +static struct pmbus_platform_data ipsps_pdata = {
> > + .flags = PMBUS_SKIP_STATUS_CHECK,
> > +};
> > +
> > +static int ipsps_probe(struct i2c_client *client,
> > + const struct i2c_device_id *id)
> > +{
> > + client->dev.platform_data = &ipsps_pdata;
> > + return pmbus_do_probe(client, id, &ipsps_info);
> > +}
> > +
> > +static const struct i2c_device_id ipsps_id[] = {
> > + { "inspur_ipsps1", 0 },
> > + {}
> > +};
> > +MODULE_DEVICE_TABLE(i2c, ipsps_id);
> > +
> > +static const struct of_device_id ipsps_of_match[] = {
> > + { .compatible = "inspur,ipsps1" },
> > + {}
> > +};
> > +MODULE_DEVICE_TABLE(of, ipsps_of_match);
> > +
> > +static struct i2c_driver ipsps_driver = {
> > + .driver = {
> > + .name = "inspur-ipsps",
> > + .of_match_table = ipsps_of_match,
> > + },
> > + .probe = ipsps_probe,
> > + .remove = pmbus_do_remove,
> > + .id_table = ipsps_id,
> > +};
> > +
> > +module_i2c_driver(ipsps_driver);
> > +
> > +MODULE_AUTHOR("John Wang");
> > +MODULE_DESCRIPTION("PMBus driver for Inspur Power System power supplies");
> > +MODULE_LICENSE("GPL");
> >
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH v3 2/2] hwmon: pmbus: Add Inspur Power System power supply driver
2019-08-12 4:48 ` John Wang
@ 2019-08-12 19:33 ` Guenter Roeck
0 siblings, 0 replies; 4+ messages in thread
From: Guenter Roeck @ 2019-08-12 19:33 UTC (permalink / raw)
To: John Wang
Cc: jdelvare, corbet, linux-hwmon, linux-doc, linux-kernel, miltonm,
Yu Lei, duanzhijia01, Joel Stanley, OpenBMC Maillist
On Mon, Aug 12, 2019 at 12:48:34PM +0800, John Wang wrote:
>
> So I should
>
> 1. Add SENSOR_INSPUR_IPSPS to the end of the file
> 2. Add SENSOR_INSPUR_IPSPS in alphabetical order, without additional tab
> 3. other suggestions
>
I would suggest 2). Just use a space before += instead of a tab.
Guenter
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2019-08-12 19:33 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-08-12 2:53 [PATCH v3 2/2] hwmon: pmbus: Add Inspur Power System power supply driver John Wang
2019-08-12 4:21 ` Guenter Roeck
2019-08-12 4:48 ` John Wang
2019-08-12 19:33 ` Guenter Roeck
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