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>

diff --git a/Documentation/hwmon/jc42 b/Documentation/hwmon/jc42
index a22ecf4..e713375 100644 (file)
--- a/Documentation/hwmon/jc42
+++ b/Documentation/hwmon/jc42
@@ -48,6 +48,12 @@ Supported chips:
     Datasheets:
        http://www.st.com/stonline/products/literature/ds/13447/stts424.pdf
        http://www.st.com/stonline/products/literature/ds/13448/stts424e02.pdf
+  * ST Microelectronics STTS2002, STTS3000
+    Prefix: 'stts2002', 'stts3000'
+    Addresses scanned: I2C 0x18 - 0x1f
+    Datasheets:
+       http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00225278.pdf
+       http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATA_BRIEF/CD00270920.pdf
   * JEDEC JC 42.4 compliant temperature sensor chips
     Prefix: 'jc42'
     Addresses scanned: I2C 0x18 - 0x1f

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 0226040..91a51af 100644 (file)
--- 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 28c09ee..08430ec 100644 (file)
--- 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 },
        { }