* [PATCH v11] hwmon:Driver for Delta power supplies Q54SJ108A2
@ 2020-12-09 7:27 xiao.ma
2020-12-11 15:37 ` Guenter Roeck
0 siblings, 1 reply; 2+ messages in thread
From: xiao.ma @ 2020-12-09 7:27 UTC (permalink / raw)
To: Guenter Roeck, Jean Delvare, linux-hwmon, linux-kernel,
xiao.mx.ma, jiajia.feng
From: "xiao.ma" <xiao.mx.ma@deltaww.com>
The driver supports Q54SJ108A2 series modules of Delta.
Standard attributes are in sysfs, and other attributes are in debugfs.
Signed-off-by: xiao.ma <xiao.mx.ma@deltaww.com>
---
Notes:
Patch v2 changelog:
Add delta.rst in Documentation/hwmon.
Tristate "DELTA" in Kconfig is changed to "DELTA_POWER_SUPPLIED".
Modify code: drop the excessive empty lines, correct the comment content, adjust indent, remove extra brackets.
Patch v3 changelog:
Add delta.rst to Documentation/hwmon/index.rst.
Tristate "DELTA_POWER_SUPPLIES" in Kconfig is changed to "Delta Power Supplies".
Patch v4 changelog:
Correct the spelling "Temperature" in the delta.rst.
Add Write_protect when write command VOUT_OV_RESPONSE and IOUT_OC_FAULT_RESPONSE.
Patch v5 changelog:
Add some non-standard attributes in sysfs system.
Patch v6 changelog:
delta.c and delta.rst are renamed to q54sj108a2.c and q54sj108a2.rst.
Add q54sj108a2 to index.rst.
Tristate in Kconfig is changed to "Delta Power Supplies Q54SJ108A2".
The non-standard attributes are added to debugfs.
Patch v7 changelog:
Use standard fuctions bin2hex and hex2bin.
The return of debugfs write is changed to count.
Drop the error checking of debugfs fuctions.
Use probe_new fuction.
Remove the .remove fuction.
Patch v8 changelog:
Use kstrtou8_from_user instead of hex2bin.
Remove included head files which are not used.
Done label in debugfs_read fuction is deleted.
Change email to send the patch.
Patch v9 changelog:
Fix the compile errors and warnings.
Patch v10 changelog:
Fix the reports from checkpatch.
Name of driver is changed to "q54sj108a2".
Patch v11 changelog:
Extend title underline in q54sj108a2.rst.
Documentation/hwmon/index.rst | 1 +
Documentation/hwmon/q54sj108a2.rst | 54 ++++
drivers/hwmon/pmbus/Kconfig | 9 +
drivers/hwmon/pmbus/Makefile | 1 +
drivers/hwmon/pmbus/q54sj108a2.c | 422 +++++++++++++++++++++++++++++
5 files changed, 487 insertions(+)
create mode 100644 Documentation/hwmon/q54sj108a2.rst
create mode 100644 drivers/hwmon/pmbus/q54sj108a2.c
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
index b797db738225..4bb680b3c7ea 100644
--- a/Documentation/hwmon/index.rst
+++ b/Documentation/hwmon/index.rst
@@ -148,6 +148,7 @@ Hardware Monitoring Kernel Drivers
powr1220
pxe1610
pwm-fan
+ q54sj108a2
raspberrypi-hwmon
sch5627
sch5636
diff --git a/Documentation/hwmon/q54sj108a2.rst b/Documentation/hwmon/q54sj108a2.rst
new file mode 100644
index 000000000000..f95d81382a9f
--- /dev/null
+++ b/Documentation/hwmon/q54sj108a2.rst
@@ -0,0 +1,54 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+Kernel driver q54sj108a2
+========================
+
+Supported chips:
+
+ * DELTA Q54SJ108A2NCAH, Q54SJ108A2NCDH, Q54SJ108A2NCPG, Q54SJ108A2NCPH
+
+ Prefix: 'q54sj108a2'
+
+ Addresses scanned: -
+
+ Datasheet: https://filecenter.delta-china.com.cn/products/download/01/0102/datasheet/DS_Q54SJ108A2.pdf
+
+Authors:
+ Xiao.ma <xiao.mx.ma@deltaww.com>
+
+
+Description
+-----------
+
+This driver implements support for DELTA Q54SJ108A2NCAH, Q54SJ108A2NCDH,
+Q54SJ108A2NCPG, and Q54SJ108A2NCPH 1/4 Brick DC/DC Regulated Power Module
+with PMBus support.
+
+The driver is a client driver to the core PMBus driver.
+Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
+
+
+Usage Notes
+-----------
+
+This driver does not auto-detect devices. You will have to instantiate the
+devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
+details.
+
+
+Sysfs entries
+-------------
+
+===================== ===== ==================================================
+curr1_alarm RO Output current alarm
+curr1_input RO Output current
+curr1_label RO 'iout1'
+in1_alarm RO Input voltage alarm
+in1_input RO Input voltage
+in1_label RO 'vin'
+in2_alarm RO Output voltage alarm
+in2_input RO Output voltage
+in2_label RO 'vout1'
+temp1_alarm RO Temperature alarm
+temp1_input RO Chip temperature
+===================== ===== ==================================================
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index a25faf69fce3..01de280820ee 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -229,6 +229,15 @@ config SENSORS_PXE1610
This driver can also be built as a module. If so, the module will
be called pxe1610.
+config SENSORS_Q54SJ108A2
+ tristate "Delta Power Supplies Q54SJ108A2"
+ help
+ If you say yes here you get hardware monitoring support for Delta
+ Q54SJ108A2 series Power Supplies.
+
+ This driver can also be built as a module. If so, the module will
+ be called q54sj108a2.
+
config SENSORS_TPS40422
tristate "TI TPS40422"
help
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
index 4c97ad0bd791..a50122cd455b 100644
--- a/drivers/hwmon/pmbus/Makefile
+++ b/drivers/hwmon/pmbus/Makefile
@@ -26,6 +26,7 @@ obj-$(CONFIG_SENSORS_MAX34440) += max34440.o
obj-$(CONFIG_SENSORS_MAX8688) += max8688.o
obj-$(CONFIG_SENSORS_MP2975) += mp2975.o
obj-$(CONFIG_SENSORS_PXE1610) += pxe1610.o
+obj-$(CONFIG_SENSORS_Q54SJ108A2) += q54sj108a2.o
obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o
obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
diff --git a/drivers/hwmon/pmbus/q54sj108a2.c b/drivers/hwmon/pmbus/q54sj108a2.c
new file mode 100644
index 000000000000..cbeb1b1ea60c
--- /dev/null
+++ b/drivers/hwmon/pmbus/q54sj108a2.c
@@ -0,0 +1,422 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Driver for Delta modules, Q54SJ108A2 series 1/4 Brick DC/DC
+ * Regulated Power Module
+ *
+ * Copyright 2020 Delta LLC.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include "pmbus.h"
+
+#define STORE_DEFAULT_ALL 0x11
+#define ERASE_BLACKBOX_DATA 0xD1
+#define READ_HISTORY_EVENT_NUMBER 0xD2
+#define READ_HISTORY_EVENTS 0xE0
+#define SET_HISTORY_EVENT_OFFSET 0xE1
+#define PMBUS_FLASH_KEY_WRITE 0xEC
+
+enum chips {
+ q54sj108a2
+};
+
+enum {
+ Q54SJ108A2_DEBUGFS_OPERATION = 0,
+ Q54SJ108A2_DEBUGFS_CLEARFAULT,
+ Q54SJ108A2_DEBUGFS_WRITEPROTECT,
+ Q54SJ108A2_DEBUGFS_STOREDEFAULT,
+ Q54SJ108A2_DEBUGFS_VOOV_RESPONSE,
+ Q54SJ108A2_DEBUGFS_IOOC_RESPONSE,
+ Q54SJ108A2_DEBUGFS_PMBUS_VERSION,
+ Q54SJ108A2_DEBUGFS_MFR_ID,
+ Q54SJ108A2_DEBUGFS_MFR_MODEL,
+ Q54SJ108A2_DEBUGFS_MFR_REVISION,
+ Q54SJ108A2_DEBUGFS_MFR_LOCATION,
+ Q54SJ108A2_DEBUGFS_BLACKBOX_ERASE,
+ Q54SJ108A2_DEBUGFS_BLACKBOX_READ_OFFSET,
+ Q54SJ108A2_DEBUGFS_BLACKBOX_SET_OFFSET,
+ Q54SJ108A2_DEBUGFS_BLACKBOX_READ,
+ Q54SJ108A2_DEBUGFS_FLASH_KEY,
+ Q54SJ108A2_DEBUGFS_NUM_ENTRIES
+};
+
+struct q54sj108a2_data {
+ enum chips chip;
+ struct i2c_client *client;
+
+ int debugfs_entries[Q54SJ108A2_DEBUGFS_NUM_ENTRIES];
+};
+
+#define to_psu(x, y) container_of((x), struct q54sj108a2_data, debugfs_entries[(y)])
+
+static struct pmbus_driver_info q54sj108a2_info[] = {
+ [q54sj108a2] = {
+ .pages = 1,
+
+ /* Source : Delta Q54SJ108A2 */
+ .format[PSC_TEMPERATURE] = linear,
+ .format[PSC_VOLTAGE_IN] = linear,
+ .format[PSC_CURRENT_OUT] = linear,
+
+ .func[0] = PMBUS_HAVE_VIN |
+ PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
+ PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
+ PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP |
+ PMBUS_HAVE_STATUS_INPUT,
+ },
+};
+
+static ssize_t q54sj108a2_debugfs_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ int rc;
+ int *idxp = file->private_data;
+ int idx = *idxp;
+ struct q54sj108a2_data *psu = to_psu(idxp, idx);
+ char data[I2C_SMBUS_BLOCK_MAX + 2] = { 0 };
+ char data_char[I2C_SMBUS_BLOCK_MAX + 2] = { 0 };
+ char *res;
+
+ switch (idx) {
+ case Q54SJ108A2_DEBUGFS_OPERATION:
+ rc = i2c_smbus_read_byte_data(psu->client, PMBUS_OPERATION);
+ if (rc < 0)
+ return rc;
+
+ rc = snprintf(data, 3, "%02x", rc);
+ break;
+ case Q54SJ108A2_DEBUGFS_WRITEPROTECT:
+ rc = i2c_smbus_read_byte_data(psu->client, PMBUS_WRITE_PROTECT);
+ if (rc < 0)
+ return rc;
+
+ rc = snprintf(data, 3, "%02x", rc);
+ break;
+ case Q54SJ108A2_DEBUGFS_VOOV_RESPONSE:
+ rc = i2c_smbus_read_byte_data(psu->client, PMBUS_VOUT_OV_FAULT_RESPONSE);
+ if (rc < 0)
+ return rc;
+
+ rc = snprintf(data, 3, "%02x", rc);
+ break;
+ case Q54SJ108A2_DEBUGFS_IOOC_RESPONSE:
+ rc = i2c_smbus_read_byte_data(psu->client, PMBUS_IOUT_OC_FAULT_RESPONSE);
+ if (rc < 0)
+ return rc;
+
+ rc = snprintf(data, 3, "%02x", rc);
+ break;
+ case Q54SJ108A2_DEBUGFS_PMBUS_VERSION:
+ rc = i2c_smbus_read_byte_data(psu->client, PMBUS_REVISION);
+ if (rc < 0)
+ return rc;
+
+ rc = snprintf(data, 3, "%02x", rc);
+ break;
+ case Q54SJ108A2_DEBUGFS_MFR_ID:
+ rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_ID, data);
+ if (rc < 0)
+ return rc;
+ break;
+ case Q54SJ108A2_DEBUGFS_MFR_MODEL:
+ rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_MODEL, data);
+ if (rc < 0)
+ return rc;
+ break;
+ case Q54SJ108A2_DEBUGFS_MFR_REVISION:
+ rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_REVISION, data);
+ if (rc < 0)
+ return rc;
+ break;
+ case Q54SJ108A2_DEBUGFS_MFR_LOCATION:
+ rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_LOCATION, data);
+ if (rc < 0)
+ return rc;
+ break;
+ case Q54SJ108A2_DEBUGFS_BLACKBOX_READ_OFFSET:
+ rc = i2c_smbus_read_byte_data(psu->client, READ_HISTORY_EVENT_NUMBER);
+ if (rc < 0)
+ return rc;
+
+ rc = snprintf(data, 3, "%02x", rc);
+ break;
+ case Q54SJ108A2_DEBUGFS_BLACKBOX_READ:
+ rc = i2c_smbus_read_block_data(psu->client, READ_HISTORY_EVENTS, data);
+ if (rc < 0)
+ return rc;
+
+ res = bin2hex(data, data_char, 32);
+ rc = res - data;
+
+ break;
+ case Q54SJ108A2_DEBUGFS_FLASH_KEY:
+ rc = i2c_smbus_read_block_data(psu->client, PMBUS_FLASH_KEY_WRITE, data);
+ if (rc < 0)
+ return rc;
+
+ res = bin2hex(data, data_char, 4);
+ rc = res - data;
+
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ data[rc] = '\n';
+ rc += 2;
+
+ return simple_read_from_buffer(buf, count, ppos, data, rc);
+}
+
+static ssize_t q54sj108a2_debugfs_write(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ u8 flash_key[4];
+ u8 dst_data;
+ ssize_t rc;
+ int *idxp = file->private_data;
+ int idx = *idxp;
+ struct q54sj108a2_data *psu = to_psu(idxp, idx);
+
+ rc = i2c_smbus_write_byte_data(psu->client, PMBUS_WRITE_PROTECT, 0);
+ if (rc)
+ return rc;
+
+ switch (idx) {
+ case Q54SJ108A2_DEBUGFS_OPERATION:
+ rc = kstrtou8_from_user(buf, count, 0, &dst_data);
+ if (rc < 0)
+ return rc;
+
+ rc = i2c_smbus_write_byte_data(psu->client, PMBUS_OPERATION, dst_data);
+ if (rc < 0)
+ return rc;
+
+ break;
+ case Q54SJ108A2_DEBUGFS_CLEARFAULT:
+ rc = i2c_smbus_write_byte(psu->client, PMBUS_CLEAR_FAULTS);
+ if (rc < 0)
+ return rc;
+
+ break;
+ case Q54SJ108A2_DEBUGFS_STOREDEFAULT:
+ flash_key[0] = 0x7E;
+ flash_key[1] = 0x15;
+ flash_key[2] = 0xDC;
+ flash_key[3] = 0x42;
+ rc = i2c_smbus_write_block_data(psu->client, PMBUS_FLASH_KEY_WRITE, 4, flash_key);
+ if (rc < 0)
+ return rc;
+
+ rc = i2c_smbus_write_byte(psu->client, STORE_DEFAULT_ALL);
+ if (rc < 0)
+ return rc;
+
+ break;
+ case Q54SJ108A2_DEBUGFS_VOOV_RESPONSE:
+ rc = kstrtou8_from_user(buf, count, 0, &dst_data);
+ if (rc < 0)
+ return rc;
+
+ rc = i2c_smbus_write_byte_data(psu->client, PMBUS_VOUT_OV_FAULT_RESPONSE, dst_data);
+ if (rc < 0)
+ return rc;
+
+ break;
+ case Q54SJ108A2_DEBUGFS_IOOC_RESPONSE:
+ rc = kstrtou8_from_user(buf, count, 0, &dst_data);
+ if (rc < 0)
+ return rc;
+
+ rc = i2c_smbus_write_byte_data(psu->client, PMBUS_IOUT_OC_FAULT_RESPONSE, dst_data);
+ if (rc < 0)
+ return rc;
+
+ break;
+ case Q54SJ108A2_DEBUGFS_BLACKBOX_ERASE:
+ rc = i2c_smbus_write_byte(psu->client, ERASE_BLACKBOX_DATA);
+ if (rc < 0)
+ return rc;
+
+ break;
+ case Q54SJ108A2_DEBUGFS_BLACKBOX_SET_OFFSET:
+ rc = kstrtou8_from_user(buf, count, 0, &dst_data);
+ if (rc < 0)
+ return rc;
+
+ rc = i2c_smbus_write_byte_data(psu->client, SET_HISTORY_EVENT_OFFSET, dst_data);
+ if (rc < 0)
+ return rc;
+
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return count;
+}
+
+static const struct file_operations q54sj108a2_fops = {
+ .llseek = noop_llseek,
+ .read = q54sj108a2_debugfs_read,
+ .write = q54sj108a2_debugfs_write,
+ .open = simple_open,
+};
+
+static const struct i2c_device_id q54sj108a2_id[] = {
+ { "q54sj108a2", q54sj108a2 },
+ { },
+};
+
+MODULE_DEVICE_TABLE(i2c, q54sj108a2_id);
+
+static int q54sj108a2_probe(struct i2c_client *client)
+{
+ struct device *dev = &client->dev;
+ u8 buf[I2C_SMBUS_BLOCK_MAX + 1];
+ enum chips chip_id;
+ int ret, i;
+ struct dentry *debugfs;
+ struct dentry *q54sj108a2_dir;
+ struct q54sj108a2_data *psu;
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_BYTE_DATA |
+ I2C_FUNC_SMBUS_WORD_DATA |
+ I2C_FUNC_SMBUS_BLOCK_DATA))
+ return -ENODEV;
+
+ if (client->dev.of_node)
+ chip_id = (enum chips)(unsigned long)of_device_get_match_data(dev);
+ else
+ chip_id = i2c_match_id(q54sj108a2_id, client)->driver_data;
+
+ ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, buf);
+ if (ret < 0) {
+ dev_err(&client->dev, "Failed to read Manufacturer ID\n");
+ return ret;
+ }
+ if (ret != 5 || strncmp(buf, "DELTA", 5)) {
+ buf[ret] = '\0';
+ dev_err(dev, "Unsupported Manufacturer ID '%s'\n", buf);
+ return -ENODEV;
+ }
+
+ /*
+ * The chips support reading PMBUS_MFR_MODEL.
+ */
+ ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, buf);
+ if (ret < 0) {
+ dev_err(dev, "Failed to read Manufacturer Model\n");
+ return ret;
+ }
+ if (ret != 14 || strncmp(buf, "Q54SJ108A2", 10)) {
+ buf[ret] = '\0';
+ dev_err(dev, "Unsupported Manufacturer Model '%s'\n", buf);
+ return -ENODEV;
+ }
+
+ ret = i2c_smbus_read_block_data(client, PMBUS_MFR_REVISION, buf);
+ if (ret < 0) {
+ dev_err(dev, "Failed to read Manufacturer Revision\n");
+ return ret;
+ }
+ if (ret != 4 || buf[0] != 'S') {
+ buf[ret] = '\0';
+ dev_err(dev, "Unsupported Manufacturer Revision '%s'\n", buf);
+ return -ENODEV;
+ }
+
+ ret = pmbus_do_probe(client, &q54sj108a2_info[chip_id]);
+ if (ret)
+ return ret;
+
+ psu = devm_kzalloc(&client->dev, sizeof(*psu), GFP_KERNEL);
+ if (!psu)
+ return 0;
+
+ psu->client = client;
+
+ debugfs = pmbus_get_debugfs_dir(client);
+
+ q54sj108a2_dir = debugfs_create_dir(client->name, debugfs);
+
+ for (i = 0; i < Q54SJ108A2_DEBUGFS_NUM_ENTRIES; ++i)
+ psu->debugfs_entries[i] = i;
+
+ debugfs_create_file("operation", 0644, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_OPERATION],
+ &q54sj108a2_fops);
+ debugfs_create_file("clear_fault", 0200, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_CLEARFAULT],
+ &q54sj108a2_fops);
+ debugfs_create_file("write_protect", 0444, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_WRITEPROTECT],
+ &q54sj108a2_fops);
+ debugfs_create_file("store_default", 0200, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_STOREDEFAULT],
+ &q54sj108a2_fops);
+ debugfs_create_file("vo_ov_response", 0644, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_VOOV_RESPONSE],
+ &q54sj108a2_fops);
+ debugfs_create_file("io_oc_response", 0644, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_IOOC_RESPONSE],
+ &q54sj108a2_fops);
+ debugfs_create_file("pmbus_revision", 0444, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_PMBUS_VERSION],
+ &q54sj108a2_fops);
+ debugfs_create_file("mfr_id", 0444, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_MFR_ID],
+ &q54sj108a2_fops);
+ debugfs_create_file("mfr_model", 0444, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_MFR_MODEL],
+ &q54sj108a2_fops);
+ debugfs_create_file("mfr_revision", 0444, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_MFR_REVISION],
+ &q54sj108a2_fops);
+ debugfs_create_file("mfr_location", 0444, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_MFR_LOCATION],
+ &q54sj108a2_fops);
+ debugfs_create_file("blackbox_erase", 0200, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_BLACKBOX_ERASE],
+ &q54sj108a2_fops);
+ debugfs_create_file("blackbox_read_offset", 0444, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_BLACKBOX_READ_OFFSET],
+ &q54sj108a2_fops);
+ debugfs_create_file("blackbox_set_offset", 0200, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_BLACKBOX_SET_OFFSET],
+ &q54sj108a2_fops);
+ debugfs_create_file("blackbox_read", 0444, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_BLACKBOX_READ],
+ &q54sj108a2_fops);
+ debugfs_create_file("flash_key", 0444, q54sj108a2_dir,
+ &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_FLASH_KEY],
+ &q54sj108a2_fops);
+
+ return 0;
+}
+
+static const struct of_device_id q54sj108a2_of_match[] = {
+ { .compatible = "delta,q54sj108a2", .data = (void *)q54sj108a2 },
+ { },
+};
+
+MODULE_DEVICE_TABLE(of, q54sj108a2_of_match);
+
+static struct i2c_driver q54sj108a2_driver = {
+ .driver = {
+ .name = "q54sj108a2",
+ .of_match_table = q54sj108a2_of_match,
+ },
+ .probe_new = q54sj108a2_probe,
+ .id_table = q54sj108a2_id,
+};
+
+module_i2c_driver(q54sj108a2_driver);
+
+MODULE_AUTHOR("Xiao.Ma <xiao.mx.ma@deltaww.com>");
+MODULE_DESCRIPTION("PMBus driver for Delta Q54SJ108A2 series modules");
+MODULE_LICENSE("GPL");
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v11] hwmon:Driver for Delta power supplies Q54SJ108A2
2020-12-09 7:27 [PATCH v11] hwmon:Driver for Delta power supplies Q54SJ108A2 xiao.ma
@ 2020-12-11 15:37 ` Guenter Roeck
0 siblings, 0 replies; 2+ messages in thread
From: Guenter Roeck @ 2020-12-11 15:37 UTC (permalink / raw)
To: xiao.ma; +Cc: Jean Delvare, linux-hwmon, linux-kernel, xiao.mx.ma, jiajia.feng
On Tue, Dec 08, 2020 at 09:27:50PM -1000, xiao.ma wrote:
> From: "xiao.ma" <xiao.mx.ma@deltaww.com>
>
> The driver supports Q54SJ108A2 series modules of Delta.
> Standard attributes are in sysfs, and other attributes are in debugfs.
>
> Signed-off-by: xiao.ma <xiao.mx.ma@deltaww.com>
> ---
>
> Notes:
> Patch v2 changelog:
> Add delta.rst in Documentation/hwmon.
> Tristate "DELTA" in Kconfig is changed to "DELTA_POWER_SUPPLIED".
> Modify code: drop the excessive empty lines, correct the comment content, adjust indent, remove extra brackets.
> Patch v3 changelog:
> Add delta.rst to Documentation/hwmon/index.rst.
> Tristate "DELTA_POWER_SUPPLIES" in Kconfig is changed to "Delta Power Supplies".
> Patch v4 changelog:
> Correct the spelling "Temperature" in the delta.rst.
> Add Write_protect when write command VOUT_OV_RESPONSE and IOUT_OC_FAULT_RESPONSE.
> Patch v5 changelog:
> Add some non-standard attributes in sysfs system.
> Patch v6 changelog:
> delta.c and delta.rst are renamed to q54sj108a2.c and q54sj108a2.rst.
> Add q54sj108a2 to index.rst.
> Tristate in Kconfig is changed to "Delta Power Supplies Q54SJ108A2".
> The non-standard attributes are added to debugfs.
> Patch v7 changelog:
> Use standard fuctions bin2hex and hex2bin.
> The return of debugfs write is changed to count.
> Drop the error checking of debugfs fuctions.
> Use probe_new fuction.
> Remove the .remove fuction.
> Patch v8 changelog:
> Use kstrtou8_from_user instead of hex2bin.
> Remove included head files which are not used.
> Done label in debugfs_read fuction is deleted.
> Change email to send the patch.
> Patch v9 changelog:
> Fix the compile errors and warnings.
> Patch v10 changelog:
> Fix the reports from checkpatch.
> Name of driver is changed to "q54sj108a2".
> Patch v11 changelog:
> Extend title underline in q54sj108a2.rst.
I already applied the driver, and the fix for this problem
in a separate patch.
Guenter
>
> Documentation/hwmon/index.rst | 1 +
> Documentation/hwmon/q54sj108a2.rst | 54 ++++
> drivers/hwmon/pmbus/Kconfig | 9 +
> drivers/hwmon/pmbus/Makefile | 1 +
> drivers/hwmon/pmbus/q54sj108a2.c | 422 +++++++++++++++++++++++++++++
> 5 files changed, 487 insertions(+)
> create mode 100644 Documentation/hwmon/q54sj108a2.rst
> create mode 100644 drivers/hwmon/pmbus/q54sj108a2.c
>
> diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
> index b797db738225..4bb680b3c7ea 100644
> --- a/Documentation/hwmon/index.rst
> +++ b/Documentation/hwmon/index.rst
> @@ -148,6 +148,7 @@ Hardware Monitoring Kernel Drivers
> powr1220
> pxe1610
> pwm-fan
> + q54sj108a2
> raspberrypi-hwmon
> sch5627
> sch5636
> diff --git a/Documentation/hwmon/q54sj108a2.rst b/Documentation/hwmon/q54sj108a2.rst
> new file mode 100644
> index 000000000000..f95d81382a9f
> --- /dev/null
> +++ b/Documentation/hwmon/q54sj108a2.rst
> @@ -0,0 +1,54 @@
> +.. SPDX-License-Identifier: GPL-2.0-or-later
> +
> +Kernel driver q54sj108a2
> +========================
> +
> +Supported chips:
> +
> + * DELTA Q54SJ108A2NCAH, Q54SJ108A2NCDH, Q54SJ108A2NCPG, Q54SJ108A2NCPH
> +
> + Prefix: 'q54sj108a2'
> +
> + Addresses scanned: -
> +
> + Datasheet: https://filecenter.delta-china.com.cn/products/download/01/0102/datasheet/DS_Q54SJ108A2.pdf
> +
> +Authors:
> + Xiao.ma <xiao.mx.ma@deltaww.com>
> +
> +
> +Description
> +-----------
> +
> +This driver implements support for DELTA Q54SJ108A2NCAH, Q54SJ108A2NCDH,
> +Q54SJ108A2NCPG, and Q54SJ108A2NCPH 1/4 Brick DC/DC Regulated Power Module
> +with PMBus support.
> +
> +The driver is a client driver to the core PMBus driver.
> +Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
> +
> +
> +Usage Notes
> +-----------
> +
> +This driver does not auto-detect devices. You will have to instantiate the
> +devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
> +details.
> +
> +
> +Sysfs entries
> +-------------
> +
> +===================== ===== ==================================================
> +curr1_alarm RO Output current alarm
> +curr1_input RO Output current
> +curr1_label RO 'iout1'
> +in1_alarm RO Input voltage alarm
> +in1_input RO Input voltage
> +in1_label RO 'vin'
> +in2_alarm RO Output voltage alarm
> +in2_input RO Output voltage
> +in2_label RO 'vout1'
> +temp1_alarm RO Temperature alarm
> +temp1_input RO Chip temperature
> +===================== ===== ==================================================
> diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
> index a25faf69fce3..01de280820ee 100644
> --- a/drivers/hwmon/pmbus/Kconfig
> +++ b/drivers/hwmon/pmbus/Kconfig
> @@ -229,6 +229,15 @@ config SENSORS_PXE1610
> This driver can also be built as a module. If so, the module will
> be called pxe1610.
>
> +config SENSORS_Q54SJ108A2
> + tristate "Delta Power Supplies Q54SJ108A2"
> + help
> + If you say yes here you get hardware monitoring support for Delta
> + Q54SJ108A2 series Power Supplies.
> +
> + This driver can also be built as a module. If so, the module will
> + be called q54sj108a2.
> +
> config SENSORS_TPS40422
> tristate "TI TPS40422"
> help
> diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
> index 4c97ad0bd791..a50122cd455b 100644
> --- a/drivers/hwmon/pmbus/Makefile
> +++ b/drivers/hwmon/pmbus/Makefile
> @@ -26,6 +26,7 @@ obj-$(CONFIG_SENSORS_MAX34440) += max34440.o
> obj-$(CONFIG_SENSORS_MAX8688) += max8688.o
> obj-$(CONFIG_SENSORS_MP2975) += mp2975.o
> obj-$(CONFIG_SENSORS_PXE1610) += pxe1610.o
> +obj-$(CONFIG_SENSORS_Q54SJ108A2) += q54sj108a2.o
> obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o
> obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
> obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
> diff --git a/drivers/hwmon/pmbus/q54sj108a2.c b/drivers/hwmon/pmbus/q54sj108a2.c
> new file mode 100644
> index 000000000000..cbeb1b1ea60c
> --- /dev/null
> +++ b/drivers/hwmon/pmbus/q54sj108a2.c
> @@ -0,0 +1,422 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Driver for Delta modules, Q54SJ108A2 series 1/4 Brick DC/DC
> + * Regulated Power Module
> + *
> + * Copyright 2020 Delta LLC.
> + */
> +
> +#include <linux/debugfs.h>
> +#include <linux/i2c.h>
> +#include <linux/module.h>
> +#include <linux/of_device.h>
> +#include "pmbus.h"
> +
> +#define STORE_DEFAULT_ALL 0x11
> +#define ERASE_BLACKBOX_DATA 0xD1
> +#define READ_HISTORY_EVENT_NUMBER 0xD2
> +#define READ_HISTORY_EVENTS 0xE0
> +#define SET_HISTORY_EVENT_OFFSET 0xE1
> +#define PMBUS_FLASH_KEY_WRITE 0xEC
> +
> +enum chips {
> + q54sj108a2
> +};
> +
> +enum {
> + Q54SJ108A2_DEBUGFS_OPERATION = 0,
> + Q54SJ108A2_DEBUGFS_CLEARFAULT,
> + Q54SJ108A2_DEBUGFS_WRITEPROTECT,
> + Q54SJ108A2_DEBUGFS_STOREDEFAULT,
> + Q54SJ108A2_DEBUGFS_VOOV_RESPONSE,
> + Q54SJ108A2_DEBUGFS_IOOC_RESPONSE,
> + Q54SJ108A2_DEBUGFS_PMBUS_VERSION,
> + Q54SJ108A2_DEBUGFS_MFR_ID,
> + Q54SJ108A2_DEBUGFS_MFR_MODEL,
> + Q54SJ108A2_DEBUGFS_MFR_REVISION,
> + Q54SJ108A2_DEBUGFS_MFR_LOCATION,
> + Q54SJ108A2_DEBUGFS_BLACKBOX_ERASE,
> + Q54SJ108A2_DEBUGFS_BLACKBOX_READ_OFFSET,
> + Q54SJ108A2_DEBUGFS_BLACKBOX_SET_OFFSET,
> + Q54SJ108A2_DEBUGFS_BLACKBOX_READ,
> + Q54SJ108A2_DEBUGFS_FLASH_KEY,
> + Q54SJ108A2_DEBUGFS_NUM_ENTRIES
> +};
> +
> +struct q54sj108a2_data {
> + enum chips chip;
> + struct i2c_client *client;
> +
> + int debugfs_entries[Q54SJ108A2_DEBUGFS_NUM_ENTRIES];
> +};
> +
> +#define to_psu(x, y) container_of((x), struct q54sj108a2_data, debugfs_entries[(y)])
> +
> +static struct pmbus_driver_info q54sj108a2_info[] = {
> + [q54sj108a2] = {
> + .pages = 1,
> +
> + /* Source : Delta Q54SJ108A2 */
> + .format[PSC_TEMPERATURE] = linear,
> + .format[PSC_VOLTAGE_IN] = linear,
> + .format[PSC_CURRENT_OUT] = linear,
> +
> + .func[0] = PMBUS_HAVE_VIN |
> + PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
> + PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
> + PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP |
> + PMBUS_HAVE_STATUS_INPUT,
> + },
> +};
> +
> +static ssize_t q54sj108a2_debugfs_read(struct file *file, char __user *buf,
> + size_t count, loff_t *ppos)
> +{
> + int rc;
> + int *idxp = file->private_data;
> + int idx = *idxp;
> + struct q54sj108a2_data *psu = to_psu(idxp, idx);
> + char data[I2C_SMBUS_BLOCK_MAX + 2] = { 0 };
> + char data_char[I2C_SMBUS_BLOCK_MAX + 2] = { 0 };
> + char *res;
> +
> + switch (idx) {
> + case Q54SJ108A2_DEBUGFS_OPERATION:
> + rc = i2c_smbus_read_byte_data(psu->client, PMBUS_OPERATION);
> + if (rc < 0)
> + return rc;
> +
> + rc = snprintf(data, 3, "%02x", rc);
> + break;
> + case Q54SJ108A2_DEBUGFS_WRITEPROTECT:
> + rc = i2c_smbus_read_byte_data(psu->client, PMBUS_WRITE_PROTECT);
> + if (rc < 0)
> + return rc;
> +
> + rc = snprintf(data, 3, "%02x", rc);
> + break;
> + case Q54SJ108A2_DEBUGFS_VOOV_RESPONSE:
> + rc = i2c_smbus_read_byte_data(psu->client, PMBUS_VOUT_OV_FAULT_RESPONSE);
> + if (rc < 0)
> + return rc;
> +
> + rc = snprintf(data, 3, "%02x", rc);
> + break;
> + case Q54SJ108A2_DEBUGFS_IOOC_RESPONSE:
> + rc = i2c_smbus_read_byte_data(psu->client, PMBUS_IOUT_OC_FAULT_RESPONSE);
> + if (rc < 0)
> + return rc;
> +
> + rc = snprintf(data, 3, "%02x", rc);
> + break;
> + case Q54SJ108A2_DEBUGFS_PMBUS_VERSION:
> + rc = i2c_smbus_read_byte_data(psu->client, PMBUS_REVISION);
> + if (rc < 0)
> + return rc;
> +
> + rc = snprintf(data, 3, "%02x", rc);
> + break;
> + case Q54SJ108A2_DEBUGFS_MFR_ID:
> + rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_ID, data);
> + if (rc < 0)
> + return rc;
> + break;
> + case Q54SJ108A2_DEBUGFS_MFR_MODEL:
> + rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_MODEL, data);
> + if (rc < 0)
> + return rc;
> + break;
> + case Q54SJ108A2_DEBUGFS_MFR_REVISION:
> + rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_REVISION, data);
> + if (rc < 0)
> + return rc;
> + break;
> + case Q54SJ108A2_DEBUGFS_MFR_LOCATION:
> + rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_LOCATION, data);
> + if (rc < 0)
> + return rc;
> + break;
> + case Q54SJ108A2_DEBUGFS_BLACKBOX_READ_OFFSET:
> + rc = i2c_smbus_read_byte_data(psu->client, READ_HISTORY_EVENT_NUMBER);
> + if (rc < 0)
> + return rc;
> +
> + rc = snprintf(data, 3, "%02x", rc);
> + break;
> + case Q54SJ108A2_DEBUGFS_BLACKBOX_READ:
> + rc = i2c_smbus_read_block_data(psu->client, READ_HISTORY_EVENTS, data);
> + if (rc < 0)
> + return rc;
> +
> + res = bin2hex(data, data_char, 32);
> + rc = res - data;
> +
> + break;
> + case Q54SJ108A2_DEBUGFS_FLASH_KEY:
> + rc = i2c_smbus_read_block_data(psu->client, PMBUS_FLASH_KEY_WRITE, data);
> + if (rc < 0)
> + return rc;
> +
> + res = bin2hex(data, data_char, 4);
> + rc = res - data;
> +
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + data[rc] = '\n';
> + rc += 2;
> +
> + return simple_read_from_buffer(buf, count, ppos, data, rc);
> +}
> +
> +static ssize_t q54sj108a2_debugfs_write(struct file *file, const char __user *buf,
> + size_t count, loff_t *ppos)
> +{
> + u8 flash_key[4];
> + u8 dst_data;
> + ssize_t rc;
> + int *idxp = file->private_data;
> + int idx = *idxp;
> + struct q54sj108a2_data *psu = to_psu(idxp, idx);
> +
> + rc = i2c_smbus_write_byte_data(psu->client, PMBUS_WRITE_PROTECT, 0);
> + if (rc)
> + return rc;
> +
> + switch (idx) {
> + case Q54SJ108A2_DEBUGFS_OPERATION:
> + rc = kstrtou8_from_user(buf, count, 0, &dst_data);
> + if (rc < 0)
> + return rc;
> +
> + rc = i2c_smbus_write_byte_data(psu->client, PMBUS_OPERATION, dst_data);
> + if (rc < 0)
> + return rc;
> +
> + break;
> + case Q54SJ108A2_DEBUGFS_CLEARFAULT:
> + rc = i2c_smbus_write_byte(psu->client, PMBUS_CLEAR_FAULTS);
> + if (rc < 0)
> + return rc;
> +
> + break;
> + case Q54SJ108A2_DEBUGFS_STOREDEFAULT:
> + flash_key[0] = 0x7E;
> + flash_key[1] = 0x15;
> + flash_key[2] = 0xDC;
> + flash_key[3] = 0x42;
> + rc = i2c_smbus_write_block_data(psu->client, PMBUS_FLASH_KEY_WRITE, 4, flash_key);
> + if (rc < 0)
> + return rc;
> +
> + rc = i2c_smbus_write_byte(psu->client, STORE_DEFAULT_ALL);
> + if (rc < 0)
> + return rc;
> +
> + break;
> + case Q54SJ108A2_DEBUGFS_VOOV_RESPONSE:
> + rc = kstrtou8_from_user(buf, count, 0, &dst_data);
> + if (rc < 0)
> + return rc;
> +
> + rc = i2c_smbus_write_byte_data(psu->client, PMBUS_VOUT_OV_FAULT_RESPONSE, dst_data);
> + if (rc < 0)
> + return rc;
> +
> + break;
> + case Q54SJ108A2_DEBUGFS_IOOC_RESPONSE:
> + rc = kstrtou8_from_user(buf, count, 0, &dst_data);
> + if (rc < 0)
> + return rc;
> +
> + rc = i2c_smbus_write_byte_data(psu->client, PMBUS_IOUT_OC_FAULT_RESPONSE, dst_data);
> + if (rc < 0)
> + return rc;
> +
> + break;
> + case Q54SJ108A2_DEBUGFS_BLACKBOX_ERASE:
> + rc = i2c_smbus_write_byte(psu->client, ERASE_BLACKBOX_DATA);
> + if (rc < 0)
> + return rc;
> +
> + break;
> + case Q54SJ108A2_DEBUGFS_BLACKBOX_SET_OFFSET:
> + rc = kstrtou8_from_user(buf, count, 0, &dst_data);
> + if (rc < 0)
> + return rc;
> +
> + rc = i2c_smbus_write_byte_data(psu->client, SET_HISTORY_EVENT_OFFSET, dst_data);
> + if (rc < 0)
> + return rc;
> +
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + return count;
> +}
> +
> +static const struct file_operations q54sj108a2_fops = {
> + .llseek = noop_llseek,
> + .read = q54sj108a2_debugfs_read,
> + .write = q54sj108a2_debugfs_write,
> + .open = simple_open,
> +};
> +
> +static const struct i2c_device_id q54sj108a2_id[] = {
> + { "q54sj108a2", q54sj108a2 },
> + { },
> +};
> +
> +MODULE_DEVICE_TABLE(i2c, q54sj108a2_id);
> +
> +static int q54sj108a2_probe(struct i2c_client *client)
> +{
> + struct device *dev = &client->dev;
> + u8 buf[I2C_SMBUS_BLOCK_MAX + 1];
> + enum chips chip_id;
> + int ret, i;
> + struct dentry *debugfs;
> + struct dentry *q54sj108a2_dir;
> + struct q54sj108a2_data *psu;
> +
> + if (!i2c_check_functionality(client->adapter,
> + I2C_FUNC_SMBUS_BYTE_DATA |
> + I2C_FUNC_SMBUS_WORD_DATA |
> + I2C_FUNC_SMBUS_BLOCK_DATA))
> + return -ENODEV;
> +
> + if (client->dev.of_node)
> + chip_id = (enum chips)(unsigned long)of_device_get_match_data(dev);
> + else
> + chip_id = i2c_match_id(q54sj108a2_id, client)->driver_data;
> +
> + ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, buf);
> + if (ret < 0) {
> + dev_err(&client->dev, "Failed to read Manufacturer ID\n");
> + return ret;
> + }
> + if (ret != 5 || strncmp(buf, "DELTA", 5)) {
> + buf[ret] = '\0';
> + dev_err(dev, "Unsupported Manufacturer ID '%s'\n", buf);
> + return -ENODEV;
> + }
> +
> + /*
> + * The chips support reading PMBUS_MFR_MODEL.
> + */
> + ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, buf);
> + if (ret < 0) {
> + dev_err(dev, "Failed to read Manufacturer Model\n");
> + return ret;
> + }
> + if (ret != 14 || strncmp(buf, "Q54SJ108A2", 10)) {
> + buf[ret] = '\0';
> + dev_err(dev, "Unsupported Manufacturer Model '%s'\n", buf);
> + return -ENODEV;
> + }
> +
> + ret = i2c_smbus_read_block_data(client, PMBUS_MFR_REVISION, buf);
> + if (ret < 0) {
> + dev_err(dev, "Failed to read Manufacturer Revision\n");
> + return ret;
> + }
> + if (ret != 4 || buf[0] != 'S') {
> + buf[ret] = '\0';
> + dev_err(dev, "Unsupported Manufacturer Revision '%s'\n", buf);
> + return -ENODEV;
> + }
> +
> + ret = pmbus_do_probe(client, &q54sj108a2_info[chip_id]);
> + if (ret)
> + return ret;
> +
> + psu = devm_kzalloc(&client->dev, sizeof(*psu), GFP_KERNEL);
> + if (!psu)
> + return 0;
> +
> + psu->client = client;
> +
> + debugfs = pmbus_get_debugfs_dir(client);
> +
> + q54sj108a2_dir = debugfs_create_dir(client->name, debugfs);
> +
> + for (i = 0; i < Q54SJ108A2_DEBUGFS_NUM_ENTRIES; ++i)
> + psu->debugfs_entries[i] = i;
> +
> + debugfs_create_file("operation", 0644, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_OPERATION],
> + &q54sj108a2_fops);
> + debugfs_create_file("clear_fault", 0200, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_CLEARFAULT],
> + &q54sj108a2_fops);
> + debugfs_create_file("write_protect", 0444, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_WRITEPROTECT],
> + &q54sj108a2_fops);
> + debugfs_create_file("store_default", 0200, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_STOREDEFAULT],
> + &q54sj108a2_fops);
> + debugfs_create_file("vo_ov_response", 0644, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_VOOV_RESPONSE],
> + &q54sj108a2_fops);
> + debugfs_create_file("io_oc_response", 0644, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_IOOC_RESPONSE],
> + &q54sj108a2_fops);
> + debugfs_create_file("pmbus_revision", 0444, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_PMBUS_VERSION],
> + &q54sj108a2_fops);
> + debugfs_create_file("mfr_id", 0444, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_MFR_ID],
> + &q54sj108a2_fops);
> + debugfs_create_file("mfr_model", 0444, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_MFR_MODEL],
> + &q54sj108a2_fops);
> + debugfs_create_file("mfr_revision", 0444, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_MFR_REVISION],
> + &q54sj108a2_fops);
> + debugfs_create_file("mfr_location", 0444, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_MFR_LOCATION],
> + &q54sj108a2_fops);
> + debugfs_create_file("blackbox_erase", 0200, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_BLACKBOX_ERASE],
> + &q54sj108a2_fops);
> + debugfs_create_file("blackbox_read_offset", 0444, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_BLACKBOX_READ_OFFSET],
> + &q54sj108a2_fops);
> + debugfs_create_file("blackbox_set_offset", 0200, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_BLACKBOX_SET_OFFSET],
> + &q54sj108a2_fops);
> + debugfs_create_file("blackbox_read", 0444, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_BLACKBOX_READ],
> + &q54sj108a2_fops);
> + debugfs_create_file("flash_key", 0444, q54sj108a2_dir,
> + &psu->debugfs_entries[Q54SJ108A2_DEBUGFS_FLASH_KEY],
> + &q54sj108a2_fops);
> +
> + return 0;
> +}
> +
> +static const struct of_device_id q54sj108a2_of_match[] = {
> + { .compatible = "delta,q54sj108a2", .data = (void *)q54sj108a2 },
> + { },
> +};
> +
> +MODULE_DEVICE_TABLE(of, q54sj108a2_of_match);
> +
> +static struct i2c_driver q54sj108a2_driver = {
> + .driver = {
> + .name = "q54sj108a2",
> + .of_match_table = q54sj108a2_of_match,
> + },
> + .probe_new = q54sj108a2_probe,
> + .id_table = q54sj108a2_id,
> +};
> +
> +module_i2c_driver(q54sj108a2_driver);
> +
> +MODULE_AUTHOR("Xiao.Ma <xiao.mx.ma@deltaww.com>");
> +MODULE_DESCRIPTION("PMBus driver for Delta Q54SJ108A2 series modules");
> +MODULE_LICENSE("GPL");
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2020-12-11 16:33 UTC | newest]
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2020-12-09 7:27 [PATCH v11] hwmon:Driver for Delta power supplies Q54SJ108A2 xiao.ma
2020-12-11 15:37 ` Guenter Roeck
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