[PATCH linux dev-5.4 v1 0/1] hwmon: (pmbus) Add Infineon IR38164, Renesas RAA228006, and TI SN1701022 driver

[Andrew Peng <pengms1@lenovo.com>]

Add the pmbus driver for Infineon IR38164 Voltage Regulator driver.
Add the pmbus driver for Renesas RAA228006 Digital PWM Controller.
Add the pmbus driver for TI SN1701022 driver.

Signed-off-by: Andrew Peng <pengms1@lenovo.com>
Signed-off-by: Derek Lin <dlin23@lenovo.com>
Signed-off-by: Yonghui Liu <liuyh21@lenovo.com>
---
v1: initial version

 drivers/hwmon/pmbus/Kconfig     |  25 ++++++++
 drivers/hwmon/pmbus/Makefile    |   3 +
 drivers/hwmon/pmbus/ir38164.c   |  72 +++++++++++++++++++++++
 drivers/hwmon/pmbus/raa228006.c | 127 ++++++++++++++++++++++++++++++++++++++++
 drivers/hwmon/pmbus/sn1701022.c |  80 +++++++++++++++++++++++++
 5 files changed, 307 insertions(+)
 create mode 100644 drivers/hwmon/pmbus/ir38164.c
 create mode 100644 drivers/hwmon/pmbus/raa228006.c
 create mode 100644 drivers/hwmon/pmbus/sn1701022.c

diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 6106263..2312b58 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -73,6 +73,15 @@ config SENSORS_IR38064
 	  This driver can also be built as a module. If so, the module will
 	  be called ir38064.
 
+config SENSORS_IR38164
+	tristate "Infineon IR38164"
+	help
+	  If you say yes here you get hardware monitoring support for Infineon
+	  IR38164.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called ir38164.
+
 config SENSORS_IRPS5401
 	tristate "Infineon IRPS5401"
 	help
@@ -230,4 +239,20 @@ config SENSORS_ZL6100
 	  This driver can also be built as a module. If so, the module will
 	  be called zl6100.
 
+config SENSORS_RAA228006
+	tristate "RAA228006 and compatibles"
+	help
+	  If you say yes here you get hardware monitoring support for RAA228006.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called RAA228006.
+
+config SENSORS_SN1701022
+	tristate "SN1701022"
+	help
+	  If you say yes here you get hardware monitoring support for SN1701022.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called sn1701022.
+
 endif # PMBUS
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
index 03bacfc..ba3aed5 100644
--- a/drivers/hwmon/pmbus/Makefile
+++ b/drivers/hwmon/pmbus/Makefile
@@ -10,6 +10,7 @@ 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-$(CONFIG_SENSORS_IR38164)	+= ir38164.o
 obj-$(CONFIG_SENSORS_IRPS5401)	+= irps5401.o
 obj-$(CONFIG_SENSORS_ISL68137)	+= isl68137.o
 obj-$(CONFIG_SENSORS_LM25066)	+= lm25066.o
@@ -26,3 +27,5 @@ 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-$(CONFIG_SENSORS_RAA228006)	+= raa228006.o
+obj-$(CONFIG_SENSORS_SN1701022)	+= sn1701022.o
diff --git a/drivers/hwmon/pmbus/ir38164.c b/drivers/hwmon/pmbus/ir38164.c
new file mode 100644
index 0000000..db89473
--- /dev/null
+++ b/drivers/hwmon/pmbus/ir38164.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Hardware monitoring driver for Infineon ir38164
+ *
+ * Copyright (C) 2019-present Lenovo
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include "pmbus.h"
+
+static struct pmbus_driver_info ir38164_info = {
+	.pages = 1,
+	.format[PSC_VOLTAGE_IN] = linear,
+	.format[PSC_VOLTAGE_OUT] = linear,
+	.format[PSC_CURRENT_OUT] = linear,
+	.format[PSC_POWER] = linear,
+	.format[PSC_TEMPERATURE] = linear,
+
+	.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
+	    | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP
+	    | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+	    | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
+	    | PMBUS_HAVE_POUT,
+};
+
+static int ir38164_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	return pmbus_do_probe(client, id, &ir38164_info);
+}
+
+static const struct i2c_device_id ir38164_id[] = {
+	{"ir38164", 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, ir38164_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver ir38164_driver = {
+	.driver = {
+		   .name = "ir38164",
+		   },
+	.probe = ir38164_probe,
+	.remove = pmbus_do_remove,
+	.id_table = ir38164_id,
+};
+
+module_i2c_driver(ir38164_driver);
+
+MODULE_AUTHOR("Yonghui Liu <liuyh21@lenovo.com>");
+MODULE_DESCRIPTION("PMBus driver for Infineon ir38164");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/raa228006.c b/drivers/hwmon/pmbus/raa228006.c
new file mode 100644
index 0000000..9aed481
--- /dev/null
+++ b/drivers/hwmon/pmbus/raa228006.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Hardware monitoring driver for raa228006
+ *
+ * Copyright (C) 2019-present Lenovo
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include "pmbus.h"
+
+static int raa228006_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, 0, 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;
+	}
+
+	info = devm_kzalloc(&client->dev, sizeof(struct pmbus_driver_info),
+			    GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	info->format[PSC_VOLTAGE_IN] = direct;
+	info->format[PSC_VOLTAGE_OUT] = direct;
+	info->format[PSC_CURRENT_IN] = direct;
+	info->format[PSC_CURRENT_OUT] = direct;
+	info->format[PSC_POWER] = direct;
+	info->format[PSC_TEMPERATURE] = direct;
+	info->vrm_version = vr13;
+
+	info->m[PSC_VOLTAGE_IN] = 1,
+	info->b[PSC_VOLTAGE_IN] = 0,
+	info->R[PSC_VOLTAGE_IN] = 3,
+
+	info->m[PSC_VOLTAGE_OUT] = 1,
+	info->b[PSC_VOLTAGE_OUT] = 0,
+	info->R[PSC_VOLTAGE_OUT] = 0,
+
+	info->m[PSC_CURRENT_IN] = 1,
+	info->b[PSC_CURRENT_IN] = 0,
+	info->R[PSC_CURRENT_IN] = 1,
+
+	info->m[PSC_CURRENT_OUT] = 1,
+	info->b[PSC_CURRENT_OUT] = 0,
+	info->R[PSC_CURRENT_OUT] = 2,
+
+	info->m[PSC_POWER] = 1,
+	info->b[PSC_POWER] = 0,
+	info->R[PSC_POWER] = 3,
+
+	info->m[PSC_TEMPERATURE] = 1,
+	info->b[PSC_TEMPERATURE] = 0,
+	info->R[PSC_TEMPERATURE] = 3,
+
+	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_TEMP2 | PMBUS_HAVE_TEMP3
+		| PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT
+		| PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP;
+
+	info->pages = id->driver_data;
+
+	return pmbus_do_probe(client, id, info);
+}
+
+static const struct i2c_device_id raa228006_id[] = {
+	{"raa228006", 1},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, raa228006_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver raa228006_driver = {
+	.driver = {
+		   .name = "raa228006",
+		   },
+	.probe = raa228006_probe,
+	.remove = pmbus_do_remove,
+	.id_table = raa228006_id,
+};
+
+module_i2c_driver(raa228006_driver);
+
+MODULE_AUTHOR("Yonghui Liu <liuyh21@lenovo.com>");
+MODULE_DESCRIPTION("PMBus driver for raa228006");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/sn1701022.c b/drivers/hwmon/pmbus/sn1701022.c
new file mode 100644
index 0000000..0ba45ac
--- /dev/null
+++ b/drivers/hwmon/pmbus/sn1701022.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Hardware monitoring driver for sn1701022
+ *
+ * Copyright (C) 2019-present Lenovo
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include "pmbus.h"
+
+static struct pmbus_driver_info sn1701022_info = {
+	.pages = 2,
+	.format[PSC_VOLTAGE_IN] = linear,
+	.format[PSC_VOLTAGE_OUT] = vid,
+	.vrm_version = vr12,
+	.format[PSC_CURRENT_OUT] = linear,
+	.format[PSC_CURRENT_IN] = linear,
+	.format[PSC_POWER] = linear,
+	.format[PSC_TEMPERATURE] = linear,
+
+	.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
+	    | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP
+	    | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+	    | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
+	    | PMBUS_HAVE_POUT,
+
+	.func[1] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
+	    | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP
+	    | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+	    | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
+	    | PMBUS_HAVE_POUT,
+};
+
+static int sn1701022_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	return pmbus_do_probe(client, id, &sn1701022_info);
+}
+
+static const struct i2c_device_id sn1701022_id[] = {
+	{"sn1701022", 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, sn1701022_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver sn1701022_driver = {
+	.driver = {
+		   .name = "sn1701022",
+		   },
+	.probe = sn1701022_probe,
+	.remove = pmbus_do_remove,
+	.id_table = sn1701022_id,
+};
+
+module_i2c_driver(sn1701022_driver);
+
+MODULE_AUTHOR("Yonghui Liu <liuyh21@lenovo.com>");
+MODULE_DESCRIPTION("PMBus driver for  sn1701022");
+MODULE_LICENSE("GPL");
-- 
2.7.4