[PATCH dev-5.0] hwmon: (pmbus/ir38064): Add driver for Infineon IR38064 Voltage Regulator
Patrick Venture
venture at google.com
Fri Apr 12 05:45:57 AEST 2019
From: Maxim Sloyko <maxims at google.com>
Add the pmbus driver for the Infineon ir38064 voltage regulator.
Signed-off-by: Maxim Sloyko <maxims at google.com>
Signed-off-by: Patrick Venture <venture at google.com>
---
drivers/hwmon/pmbus/Kconfig | 9 ++++++
drivers/hwmon/pmbus/Makefile | 1 +
drivers/hwmon/pmbus/ir38064.c | 60 +++++++++++++++++++++++++++++++++++
3 files changed, 70 insertions(+)
create mode 100644 drivers/hwmon/pmbus/ir38064.c
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 15c197f1c4c4..b6c228a55da2 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -64,6 +64,15 @@ config SENSORS_ISL68137
This driver can also be built as a module. If so, the module will
be called isl68137.
+config SENSORS_IR38064
+ tristate "Infineon IR38064"
+ help
+ If you say yes here you get hardware monitoring support for Infineon
+ IR38064.
+
+ This driver can also be built as a module. If so, the module will
+ be called ir38064.
+
config SENSORS_LM25066
tristate "National Semiconductor LM25066 and compatibles"
help
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
index 0684b35216da..8ee236b1d986 100644
--- a/drivers/hwmon/pmbus/Makefile
+++ b/drivers/hwmon/pmbus/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_SENSORS_ADM1275) += adm1275.o
obj-$(CONFIG_SENSORS_IBM_CFFPS) += ibm-cffps.o
obj-$(CONFIG_SENSORS_IR35221) += ir35221.o
obj-$(CONFIG_SENSORS_ISL68137) += isl68137.o
+obj-$(CONFIG_SENSORS_IR38064) += ir38064.o
obj-$(CONFIG_SENSORS_LM25066) += lm25066.o
obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o
obj-$(CONFIG_SENSORS_LTC3815) += ltc3815.o
diff --git a/drivers/hwmon/pmbus/ir38064.c b/drivers/hwmon/pmbus/ir38064.c
new file mode 100644
index 000000000000..4b957ebb6fa7
--- /dev/null
+++ b/drivers/hwmon/pmbus/ir38064.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Hardware monitoring driver for Infineon IR38064
+ *
+ * Copyright (c) 2017 Google Inc
+ *
+ */
+
+#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 ir38064_info = {
+ .pages = 1,
+ .format[PSC_VOLTAGE_IN] = linear,
+ .format[PSC_VOLTAGE_OUT] = direct,
+ .format[PSC_CURRENT_OUT] = linear,
+ .format[PSC_POWER] = linear,
+ .format[PSC_TEMPERATURE] = linear,
+ .m[PSC_VOLTAGE_OUT] = 256,
+ .b[PSC_VOLTAGE_OUT] = 0,
+ .R[PSC_VOLTAGE_OUT] = 0,
+ .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 ir38064_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ return pmbus_do_probe(client, id, &ir38064_info);
+}
+
+static const struct i2c_device_id ir38064_id[] = {
+ {"ir38064", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, ir38064_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver ir38064_driver = {
+ .driver = {
+ .name = "ir38064",
+ },
+ .probe = ir38064_probe,
+ .remove = pmbus_do_remove,
+ .id_table = ir38064_id,
+};
+
+module_i2c_driver(ir38064_driver);
+
+MODULE_AUTHOR("Maxim Sloyko <maxims at google.com>");
+MODULE_DESCRIPTION("PMBus driver for Infineon IR38064");
+MODULE_LICENSE("GPL");
--
2.21.0.392.gf8f6787159e-goog
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