hwmon: (jc42) Add support for ST Microelectronics STTS2002 and STTS3000

These are fully compatible with Jedec JC 42.4 as far as I can see.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@vger.kernel.org # 3.0+
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>

2 files changed, 12 insertions, 1 deletions

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 02260406b9e4..91a51aff5363 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -498,7 +498,8 @@ config SENSORS_JC42
           temperature sensors, which are used on many DDR3 memory modules for
           mobile devices and servers.  Support will include, but not be limited
           to, ADT7408, CAT34TS02, CAT6095, MAX6604, MCP9805, MCP98242, MCP98243,
-          MCP9843, SE97, SE98, STTS424(E), TSE2002B3, and TS3000B3.
+          MCP9843, SE97, SE98, STTS424(E), STTS2002, STTS3000, TSE2002B3, and
+          TS3000B3.
 
           This driver can also be built as a module.  If so, the module
           will be called jc42.
diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c
index 28c09eead36b..08430ecb306a 100644
--- a/drivers/hwmon/jc42.c
+++ b/drivers/hwmon/jc42.c
@@ -113,6 +113,12 @@ static const unsigned short normal_i2c[] = {
 #define STTS424E_DEVID          0x0000
 #define STTS424E_DEVID_MASK     0xfffe
 
+#define STTS2002_DEVID          0x0300
+#define STTS2002_DEVID_MASK     0xffff
+
+#define STTS3000_DEVID          0x0200
+#define STTS3000_DEVID_MASK     0xffff
+
 static u16 jc42_hysteresis[] = { 0, 1500, 3000, 6000 };
 
 struct jc42_chips {
@@ -133,6 +139,8 @@ static struct jc42_chips jc42_chips[] = {
         { NXP_MANID, SE98_DEVID, SE98_DEVID_MASK },
         { STM_MANID, STTS424_DEVID, STTS424_DEVID_MASK },
         { STM_MANID, STTS424E_DEVID, STTS424E_DEVID_MASK },
+        { STM_MANID, STTS2002_DEVID, STTS2002_DEVID_MASK },
+        { STM_MANID, STTS3000_DEVID, STTS3000_DEVID_MASK },
 };
 
 /* Each client has this additional data */
@@ -171,6 +179,8 @@ static const struct i2c_device_id jc42_id[] = {
         { "se97b", 0 },
         { "se98", 0 },
         { "stts424", 0 },
+        { "stts2002", 0 },
+        { "stts3000", 0 },
         { "tse2002b3", 0 },
         { "ts3000b3", 0 },
         { }