NCT1008 temperature sensor driver

Replace the PM-only driver for NCT1008 with a new version written by
Varun Wadekar and Dmitriy Gruzman.  Add a callback to an alarm
function specified in the board platform data.

Change-Id: Ib429533930ee75af3402d24b0bc286da9f6ee67b
Signed-off-by: Todd Poynor <toddpoynor@google.com>

Rebase-Id: R50bf7691d332dd562e3ef125095c7cca7ccc3abf

1 files changed, 30 insertions, 44 deletions

diff --git a/include/linux/nct1008.h b/include/linux/nct1008.h
index c6b396246..d65693507 100644
--- a/include/linux/nct1008.h
+++ b/include/linux/nct1008.h
@@ -1,54 +1,40 @@
 /*
- * Copyright (C) 2010 Motorola, Inc.
+ * include/linux/nct1008.h
+ *
+ * NCT1008, temperature monitoring device from ON Semiconductors
+ *
+ * Copyright (c) 2010, NVIDIA Corporation.
  *
  * 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.
+ * 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.
+ * 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
+ * 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.
  */
 
-#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
+#ifndef _LINUX_NCT1008_H
+#define _LINUX_NCT1008_H
 
-#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
+#include <linux/types.h>
 
-#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
+struct nct1008_platform_data {
+        bool supported_hwrev;
+        bool ext_range;
+        u8 conv_rate;
+        u8 offset;
+        u8 hysteresis;
+        u8 shutdown_ext_limit;
+        u8 shutdown_local_limit;
+        u8 throttling_ext_limit;
+        void (*alarm_fn)(bool raised);
+};
 
-#endif  /* _LINUX_NCT1008_H__ */
+#endif /* _LINUX_NCT1008_H */