--- /dev/null
+/*
+ * Copyright (C) 2010 Motorola, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307, USA
+ */
+
+#include <linux/i2c.h>
+#include <linux/irq.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/nct1008.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/uaccess.h>
+
+#define NCT_BIT_CONFIG_RUN_STOP 6
+
+struct nct1008_data {
+ struct i2c_client *client;
+};
+
+static uint32_t nct1008_debug;
+module_param_named(temp_debug, nct1008_debug, uint, 0664);
+
+static int nct1008_run(struct nct1008_data *nct, u8 run)
+{
+ int err;
+ u8 rd_val;
+ u8 wr_val;
+
+ rd_val = i2c_smbus_read_byte_data(nct->client, NCT_CONFIG_RD);
+ if (rd_val < 0) {
+ pr_err("%s: config register read fail: %d\n", __func__, rd_val);
+ return rd_val;
+ }
+
+ if (nct1008_debug)
+ pr_info("%s: Previous config is 0x%02x\n", __func__, rd_val);
+
+ if (run)
+ wr_val = rd_val & ~(1 << NCT_BIT_CONFIG_RUN_STOP);
+ else
+ wr_val = rd_val | (1 << NCT_BIT_CONFIG_RUN_STOP);
+ err = i2c_smbus_write_byte_data(nct->client, NCT_CONFIG_WR, wr_val);
+ if (err)
+ pr_err("%s: setting RUN/STOP failed: %d\n", __func__, err);
+
+ return err;
+}
+
+static int nct1008_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct nct1008_data *nct;
+
+ nct = kzalloc(sizeof(struct nct1008_data), GFP_KERNEL);
+ if (nct == NULL)
+ return -ENOMEM;
+
+ nct->client = client;
+ i2c_set_clientdata(client, nct);
+
+ return 0;
+}
+
+static int nct1008_remove(struct i2c_client *client)
+{
+ struct nct1008_data *nct = i2c_get_clientdata(client);
+
+ kfree(nct);
+ return 0;
+}
+
+static int nct1008_suspend(struct i2c_client *client, pm_message_t mesg)
+{
+ struct nct1008_data *nct = i2c_get_clientdata(client);
+
+ if (nct1008_debug)
+ pr_info("%s: Suspending\n", __func__);
+
+ return nct1008_run(nct, 0);
+}
+
+static int nct1008_resume(struct i2c_client *client)
+{
+ struct nct1008_data *nct = i2c_get_clientdata(client);
+
+ if (nct1008_debug)
+ pr_info("%s: Resuming\n", __func__);
+
+ return nct1008_run(nct, 1);
+}
+
+static const struct i2c_device_id nct1008_id[] = {
+ {"nct1008", 0},
+ {}
+};
+
+static struct i2c_driver nct1008_i2c_driver = {
+ .probe = nct1008_probe,
+ .remove = nct1008_remove,
+ .suspend = nct1008_suspend,
+ .resume = nct1008_resume,
+ .id_table = nct1008_id,
+ .driver = {
+ .name = "nct1008",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init nct1008_init(void)
+{
+ return i2c_add_driver(&nct1008_i2c_driver);
+}
+
+static void __exit nct1008_exit(void)
+{
+ i2c_del_driver(&nct1008_i2c_driver);
+}
+
+module_init(nct1008_init);
+module_exit(nct1008_exit);
+
+MODULE_DESCRIPTION("Temperature sensor driver for OnSemi NCT1008");
+MODULE_AUTHOR("Motorola");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Copyright (C) 2010 Motorola, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307, USA
+ */
+
+#ifndef _LINUX_NCT1008_H__
+#define _LINUX_NCT1008_H__
+
+/* NCT1008 Read Only Registers */
+#define NCT_LOCAL_TEMP_RD 0x00
+#define NCT_EXT_TEMP_HIGH_RD 0x01
+#define NCT_EXT_TEMP_LOW_RD 0x10
+#define NCT_STATUS_RD 0x02
+
+/* NCT1008 Control Registers */
+#define NCT_CONFIG_RD 0x03
+#define NCT_CONFIG_WR 0x09
+#define NCT_CONV_RATE_RD 0x04
+#define NCT_CONV_RATE_WR 0x0A
+
+/* NCT1008 Limit Registers */
+#define NCT_LOCAL_TEMP_HIGH_LIMIT_RD 0x05
+#define NCT_LOCAL_TEMP_LOW_LIMIT_RD 0x06
+#define NCT_LOCAL_TEMP_HIGH_LIMIT_WR 0x0B
+#define NCT_LOCAL_TEMP_LOW_LIMIT_WR 0x0C
+
+#define NCT_EXT_TEMP_HIGH_LIMIT_HBYTE_RD 0x07
+#define NCT_EXT_TEMP_LOW_LIMIT_HBYTE_RD 0x08
+#define NCT_EXT_TEMP_HIGH_LIMIT_HBYTE_WR 0x0D
+#define NCT_EXT_TEMP_LOW_LIMIT_HBYTE_WR 0x0E
+#define NCT_EXT_TEMP_HIGH_LIMIT_LBYTE_RDWR 0x13
+#define NCT_EXT_TEMP_LOW_LIMIT_LBYTE_RDWR 0x14
+#define NCT_EXT_THERM_LIMIT 0x19
+#define NCT_LOCAL_THERM_LIMIT 0x20
+
+#define NCT_EXT_TEMP_OFFSET_HIGH_RDWR 0x11
+#define NCT_EXT_TEMP_OFFSET_LOW_RDWR 0x12
+#define NCT_THERM_HYST 0x21
+#define NCT_CONSEC_ALERT 0x22
+
+#endif /* _LINUX_NCT1008_H__ */