hwmon: (lm75) Add Atmel AT30TS74 support

commit c851b715d38de0c262a63de16ad954ed39b47aca upstream.

Atmel (now Microchip) AT30TS74 is an LM75 compatible sensor. Add it.

Signed-off-by: Peter Rosin <peda@axentia.se>
Link: https://lore.kernel.org/r/9494dfbc-f506-3e94-501d-6760c487c93d@axentia.se
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 09effe7..996cdc1 100644 (file)
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1222,6 +1222,7 @@ config SENSORS_LM75
          temperature sensor chip, with models including:
 
                - Analog Devices ADT75
+               - Atmel (now Microchip) AT30TS74
                - Dallas Semiconductor DS75, DS1775 and DS7505
                - Global Mixed-mode Technology (GMT) G751
                - Maxim MAX6625 and MAX6626

diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index afdbb63..66dc826 100644 (file)
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -26,6 +26,7 @@
 
 enum lm75_type {               /* keep sorted in alphabetical order */
        adt75,
+       at30ts74,
        ds1775,
        ds75,
        ds7505,
@@ -128,6 +129,14 @@ static const struct lm75_params device_params[] = {
                .default_resolution = 12,
                .default_sample_time = MSEC_PER_SEC / 10,
        },
+       [at30ts74] = {
+               .set_mask = 3 << 5,     /* 12-bit mode*/
+               .default_resolution = 12,
+               .default_sample_time = 200,
+               .num_sample_times = 4,
+               .sample_times = (unsigned int []){ 25, 50, 100, 200 },
+               .resolutions = (u8 []) {9, 10, 11, 12 },
+       },
        [ds1775] = {
                .clr_mask = 3 << 5,
                .set_mask = 2 << 5,     /* 11-bit mode */
@@ -645,6 +654,7 @@ static int lm75_probe(struct i2c_client *client)
 
 static const struct i2c_device_id lm75_ids[] = {
        { "adt75", adt75, },
+       { "at30ts74", at30ts74, },
        { "ds1775", ds1775, },
        { "ds75", ds75, },
        { "ds7505", ds7505, },
@@ -681,6 +691,10 @@ static const struct of_device_id __maybe_unused lm75_of_match[] = {
                .data = (void *)adt75
        },
        {
+               .compatible = "atmel,at30ts74",
+               .data = (void *)at30ts74
+       },
+       {
                .compatible = "dallas,ds1775",
                .data = (void *)ds1775
        },