hwmon: (pmbus) Add support for Maxim MAX16064

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 521f191fcbe36614170611e89ed598d3e43070ad..de91d7d6a38efceae2f9c201ae0b56fe19a284b2 100644 (file)
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -779,6 +779,16 @@ config SENSORS_PMBUS
          This driver can also be built as a module. If so, the module will
          be called pmbus.
 
+config SENSORS_MAX16064
+       tristate "Maxim MAX16064"
+       default n
+       help
+         If you say yes here you get hardware monitoring support for Maxim
+         MAX16064.
+
+         This driver can also be built as a module. If so, the module will
+         be called max16064.
+
 config SENSORS_MAX8688
        tristate "Maxim MAX8688"
        default n

diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index 0e7cf92d1b5674b101b57f67482f024a9e24a361..9788fe248c6842720f74509f199f9179a854898a 100644 (file)
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -117,6 +117,7 @@ obj-$(CONFIG_SENSORS_WM8350)        += wm8350-hwmon.o
 # PMBus drivers
 obj-$(CONFIG_PMBUS)            += pmbus_core.o
 obj-$(CONFIG_SENSORS_PMBUS)    += pmbus.o
+obj-$(CONFIG_SENSORS_MAX16064) += max16064.o
 obj-$(CONFIG_SENSORS_MAX8688)  += max8688.o
 
 ifeq ($(CONFIG_HWMON_DEBUG_CHIP),y)

diff --git a/drivers/hwmon/max16064.c b/drivers/hwmon/max16064.c
new file mode 100644 (file)
index 0000000..1d6d717
--- /dev/null
+++ b/drivers/hwmon/max16064.c
@@ -0,0 +1,91 @@
+/*
+ * Hardware monitoring driver for Maxim MAX16064
+ *
+ * Copyright (c) 2011 Ericsson AB.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include "pmbus.h"
+
+static struct pmbus_driver_info max16064_info = {
+       .pages = 4,
+       .direct[PSC_VOLTAGE_IN] = true,
+       .direct[PSC_VOLTAGE_OUT] = true,
+       .direct[PSC_TEMPERATURE] = true,
+       .m[PSC_VOLTAGE_IN] = 19995,
+       .b[PSC_VOLTAGE_IN] = 0,
+       .R[PSC_VOLTAGE_IN] = -1,
+       .m[PSC_VOLTAGE_OUT] = 19995,
+       .b[PSC_VOLTAGE_OUT] = 0,
+       .R[PSC_VOLTAGE_OUT] = -1,
+       .m[PSC_TEMPERATURE] = -7612,
+       .b[PSC_TEMPERATURE] = 335,
+       .R[PSC_TEMPERATURE] = -3,
+       .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP
+               | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP,
+       .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+       .func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+       .func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+};
+
+static int max16064_probe(struct i2c_client *client,
+                         const struct i2c_device_id *id)
+{
+       return pmbus_do_probe(client, id, &max16064_info);
+}
+
+static int max16064_remove(struct i2c_client *client)
+{
+       return pmbus_do_remove(client);
+}
+
+static const struct i2c_device_id max16064_id[] = {
+       {"max16064", 0},
+       {}
+};
+
+MODULE_DEVICE_TABLE(i2c, max16064_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver max16064_driver = {
+       .driver = {
+                  .name = "max16064",
+                  },
+       .probe = max16064_probe,
+       .remove = max16064_remove,
+       .id_table = max16064_id,
+};
+
+static int __init max16064_init(void)
+{
+       return i2c_add_driver(&max16064_driver);
+}
+
+static void __exit max16064_exit(void)
+{
+       i2c_del_driver(&max16064_driver);
+}
+
+MODULE_AUTHOR("Guenter Roeck");
+MODULE_DESCRIPTION("PMBus driver for Maxim MAX16064");
+MODULE_LICENSE("GPL");
+module_init(max16064_init);
+module_exit(max16064_exit);