[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/drivers/hwmon/pmbus/ir35221.c b/src/kernel/linux/v4.19/drivers/hwmon/pmbus/ir35221.c
new file mode 100644
index 0000000..977315b
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/hwmon/pmbus/ir35221.c
@@ -0,0 +1,148 @@
+/*
+ * Hardware monitoring driver for IR35221
+ *
+ * Copyright (C) IBM Corporation 2017.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include "pmbus.h"
+
+#define IR35221_MFR_VIN_PEAK 0xc5
+#define IR35221_MFR_VOUT_PEAK 0xc6
+#define IR35221_MFR_IOUT_PEAK 0xc7
+#define IR35221_MFR_TEMP_PEAK 0xc8
+#define IR35221_MFR_VIN_VALLEY 0xc9
+#define IR35221_MFR_VOUT_VALLEY 0xca
+#define IR35221_MFR_IOUT_VALLEY 0xcb
+#define IR35221_MFR_TEMP_VALLEY 0xcc
+
+static int ir35221_read_word_data(struct i2c_client *client, int page, int reg)
+{
+ int ret;
+
+ switch (reg) {
+ case PMBUS_VIRT_READ_VIN_MAX:
+ ret = pmbus_read_word_data(client, page, IR35221_MFR_VIN_PEAK);
+ break;
+ case PMBUS_VIRT_READ_VOUT_MAX:
+ ret = pmbus_read_word_data(client, page, IR35221_MFR_VOUT_PEAK);
+ break;
+ case PMBUS_VIRT_READ_IOUT_MAX:
+ ret = pmbus_read_word_data(client, page, IR35221_MFR_IOUT_PEAK);
+ break;
+ case PMBUS_VIRT_READ_TEMP_MAX:
+ ret = pmbus_read_word_data(client, page, IR35221_MFR_TEMP_PEAK);
+ break;
+ case PMBUS_VIRT_READ_VIN_MIN:
+ ret = pmbus_read_word_data(client, page,
+ IR35221_MFR_VIN_VALLEY);
+ break;
+ case PMBUS_VIRT_READ_VOUT_MIN:
+ ret = pmbus_read_word_data(client, page,
+ IR35221_MFR_VOUT_VALLEY);
+ break;
+ case PMBUS_VIRT_READ_IOUT_MIN:
+ ret = pmbus_read_word_data(client, page,
+ IR35221_MFR_IOUT_VALLEY);
+ break;
+ case PMBUS_VIRT_READ_TEMP_MIN:
+ ret = pmbus_read_word_data(client, page,
+ IR35221_MFR_TEMP_VALLEY);
+ break;
+ default:
+ ret = -ENODATA;
+ break;
+ }
+
+ return ret;
+}
+
+static int ir35221_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;
+
+ 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, "RI", strlen("RI"))) {
+ dev_err(&client->dev, "MFR_ID unrecognised\n");
+ return -ENODEV;
+ }
+
+ ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, buf);
+ if (ret < 0) {
+ dev_err(&client->dev, "Failed to read PMBUS_MFR_MODEL\n");
+ return ret;
+ }
+ if (ret != 2 || !(buf[0] == 0x6c && buf[1] == 0x00)) {
+ dev_err(&client->dev, "MFR_MODEL unrecognised\n");
+ return -ENODEV;
+ }
+
+ info = devm_kzalloc(&client->dev, sizeof(struct pmbus_driver_info),
+ GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ info->read_word_data = ir35221_read_word_data;
+
+ info->pages = 2;
+ info->format[PSC_VOLTAGE_IN] = linear;
+ info->format[PSC_VOLTAGE_OUT] = linear;
+ info->format[PSC_CURRENT_IN] = linear;
+ info->format[PSC_CURRENT_OUT] = linear;
+ info->format[PSC_POWER] = linear;
+ info->format[PSC_TEMPERATURE] = linear;
+
+ info->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;
+ info->func[1] = info->func[0];
+
+ return pmbus_do_probe(client, id, info);
+}
+
+static const struct i2c_device_id ir35221_id[] = {
+ {"ir35221", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, ir35221_id);
+
+static struct i2c_driver ir35221_driver = {
+ .driver = {
+ .name = "ir35221",
+ },
+ .probe = ir35221_probe,
+ .remove = pmbus_do_remove,
+ .id_table = ir35221_id,
+};
+
+module_i2c_driver(ir35221_driver);
+
+MODULE_AUTHOR("Samuel Mendoza-Jonas <sam@mendozajonas.com");
+MODULE_DESCRIPTION("PMBus driver for IR35221");
+MODULE_LICENSE("GPL");