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Commit 3f08d7f4 authored by Guenter Roeck's avatar Guenter Roeck
Browse files

hwmon: (pmbus/ltc2978): Add support for LTC2978A 



Detect LTC2978A chip ID. Treat it as LC2978.

Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent c24c407e

Documentation/hwmon/ltc2978

+2 −1
Original line number Diff line number Diff line
@@ -10,10 +10,11 @@ Supported chips: 
    Prefix: 'ltc2977'

    Addresses scanned: -

    Datasheet: http://www.linear.com/product/ltc2977

  * Linear Technology LTC2978

  * Linear Technology LTC2978, LTC2978A

    Prefix: 'ltc2978'

    Addresses scanned: -

    Datasheet: http://www.linear.com/product/ltc2978

    	       http://www.linear.com/product/ltc2978a

  * Linear Technology LTC3880

    Prefix: 'ltc3880'

    Addresses scanned: -

drivers/hwmon/pmbus/ltc2978.c

+3 −1
Original line number Diff line number Diff line
@@ -57,6 +57,7 @@ enum chips { ltc2974, ltc2977, ltc2978, ltc3880, ltc3883 }; 
#define LTC2977_ID			0x0130

#define LTC2978_ID_REV1			0x0121

#define LTC2978_ID_REV2			0x0122

#define LTC2978A_ID			0x0124

#define LTC3880_ID			0x4000

#define LTC3880_ID_MASK			0xff00

#define LTC3883_ID			0x4300
@@ -397,7 +398,8 @@ static int ltc2978_probe(struct i2c_client *client, 
		data->id = ltc2974;

	} else if (chip_id == LTC2977_ID) {

		data->id = ltc2977;

	} else if (chip_id == LTC2978_ID_REV1 || chip_id == LTC2978_ID_REV2) {

	} else if (chip_id == LTC2978_ID_REV1 || chip_id == LTC2978_ID_REV2 ||

		   chip_id == LTC2978A_ID) {

		data->id = ltc2978;

	} else if ((chip_id & LTC3880_ID_MASK) == LTC3880_ID) {

		data->id = ltc3880;