hwmon: (lm75) Add support for GMT G751 chip

This was tested on a NETGEAR ReadyNAS 2120 device (Marvell Armada XP
based board, via DT).

Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
index ad6a738..c98e5a2 100644 (file)
--- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt
+++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
@@ -35,6 +35,7 @@ fsl,mc13892           MC13892: Power Management Integrated Circuit (PMIC) for i.MX35/51
 fsl,mma8450            MMA8450Q: Xtrinsic Low-power, 3-axis Xtrinsic Accelerometer
 fsl,mpr121             MPR121: Proximity Capacitive Touch Sensor Controller
 fsl,sgtl5000           SGTL5000: Ultra Low-Power Audio Codec
+gmt,g751               G751: Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface
 infineon,slb9635tt     Infineon SLB9635 (Soft-) I2C TPM (old protocol, max 100khz)
 infineon,slb9645tt     Infineon SLB9645 I2C TPM (new protocol, max 400khz)
 maxim,ds1050           5 Bit Programmable, Pulse-Width Modulator

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index b3ab9d4..52d548f 100644 (file)
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -656,6 +656,7 @@ config SENSORS_LM75
 
                - Analog Devices ADT75
                - Dallas Semiconductor DS75, DS1775 and DS7505
+               - Global Mixed-mode Technology (GMT) G751
                - Maxim MAX6625 and MAX6626
                - Microchip MCP980x
                - National Semiconductor LM75, LM75A

diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index c03b490..7e3ef13 100644 (file)
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -39,6 +39,7 @@ enum lm75_type {              /* keep sorted in alphabetical order */
        ds1775,
        ds75,
        ds7505,
+       g751,
        lm75,
        lm75a,
        max6625,
@@ -208,6 +209,7 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
                data->resolution = 12;
                data->sample_time = HZ / 4;
                break;
+       case g751:
        case lm75:
        case lm75a:
                data->resolution = 9;
@@ -296,6 +298,7 @@ static const struct i2c_device_id lm75_ids[] = {
        { "ds1775", ds1775, },
        { "ds75", ds75, },
        { "ds7505", ds7505, },
+       { "g751", g751, },
        { "lm75", lm75, },
        { "lm75a", lm75a, },
        { "max6625", max6625, },