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hwmon: (jc42) Add support for Microchip MCP9808 temperature sensor

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MCP9808 is not officially compliant to JC-42, similar to MCP9804,
but its registers are compatible to JC-42.

Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Cc: Daniel Baluta <daniel.baluta@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Alison Schofield 2016-06-27 17:23:27 -07:00 committed by Guenter Roeck
parent 9ad0df1ada
commit a31887dc9b
3 changed files with 8 additions and 3 deletions
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3
Documentation/hwmon/jc42
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@ -18,10 +18,11 @@ Supported chips:
* Maxim MAX6604 * Maxim MAX6604
Datasheets: Datasheets:
http://datasheets.maxim-ic.com/en/ds/MAX6604.pdf http://datasheets.maxim-ic.com/en/ds/MAX6604.pdf
* Microchip MCP9804, MCP9805, MCP98242, MCP98243, MCP98244, MCP9843 * Microchip MCP9804, MCP9805, MCP9808, MCP98242, MCP98243, MCP98244, MCP9843
Datasheets: Datasheets:
http://ww1.microchip.com/downloads/en/DeviceDoc/22203C.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/22203C.pdf
http://ww1.microchip.com/downloads/en/DeviceDoc/21977b.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/21977b.pdf
http://ww1.microchip.com/downloads/en/DeviceDoc/25095A.pdf
http://ww1.microchip.com/downloads/en/DeviceDoc/21996a.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/21996a.pdf
http://ww1.microchip.com/downloads/en/DeviceDoc/22153c.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/22153c.pdf
http://ww1.microchip.com/downloads/en/DeviceDoc/22327A.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/22327A.pdf

4
drivers/hwmon/Kconfig
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@ -645,8 +645,8 @@ config SENSORS_JC42
temperature sensors, which are used on many DDR3 memory modules for temperature sensors, which are used on many DDR3 memory modules for
mobile devices and servers. Support will include, but not be limited mobile devices and servers. Support will include, but not be limited
to, ADT7408, AT30TS00, CAT34TS02, CAT6095, MAX6604, MCP9804, MCP9805, to, ADT7408, AT30TS00, CAT34TS02, CAT6095, MAX6604, MCP9804, MCP9805,
MCP98242, MCP98243, MCP98244, MCP9843, SE97, SE98, STTS424(E), MCP9808, MCP98242, MCP98243, MCP98244, MCP9843, SE97, SE98,
STTS2002, STTS3000, TSE2002, TSE2004, TS3000, and TS3001. STTS424(E), STTS2002, STTS3000, TSE2002, TSE2004, TS3000, and TS3001.
This driver can also be built as a module. If so, the module This driver can also be built as a module. If so, the module
will be called jc42. will be called jc42.

4
drivers/hwmon/jc42.c
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@ -104,6 +104,9 @@ static const unsigned short normal_i2c[] = {
#define MCP9804_DEVID 0x0200 #define MCP9804_DEVID 0x0200
#define MCP9804_DEVID_MASK 0xfffc #define MCP9804_DEVID_MASK 0xfffc
#define MCP9808_DEVID 0x0400
#define MCP9808_DEVID_MASK 0xfffc
#define MCP98242_DEVID 0x2000 #define MCP98242_DEVID 0x2000
#define MCP98242_DEVID_MASK 0xfffc #define MCP98242_DEVID_MASK 0xfffc
@ -160,6 +163,7 @@ static struct jc42_chips jc42_chips[] = {
{ IDT_MANID, TS3001_DEVID, TS3001_DEVID_MASK }, { IDT_MANID, TS3001_DEVID, TS3001_DEVID_MASK },
{ MAX_MANID, MAX6604_DEVID, MAX6604_DEVID_MASK }, { MAX_MANID, MAX6604_DEVID, MAX6604_DEVID_MASK },
{ MCP_MANID, MCP9804_DEVID, MCP9804_DEVID_MASK }, { MCP_MANID, MCP9804_DEVID, MCP9804_DEVID_MASK },
{ MCP_MANID, MCP9808_DEVID, MCP9808_DEVID_MASK },
{ MCP_MANID, MCP98242_DEVID, MCP98242_DEVID_MASK }, { MCP_MANID, MCP98242_DEVID, MCP98242_DEVID_MASK },
{ MCP_MANID, MCP98243_DEVID, MCP98243_DEVID_MASK }, { MCP_MANID, MCP98243_DEVID, MCP98243_DEVID_MASK },
{ MCP_MANID, MCP98244_DEVID, MCP98244_DEVID_MASK }, { MCP_MANID, MCP98244_DEVID, MCP98244_DEVID_MASK },