diff options
Diffstat (limited to 'drivers/hwmon/pmbus/tps53679.c')
| -rw-r--r-- | drivers/hwmon/pmbus/tps53679.c | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/drivers/hwmon/pmbus/tps53679.c b/drivers/hwmon/pmbus/tps53679.c index ba838fa311c3..81b9d813655a 100644 --- a/drivers/hwmon/pmbus/tps53679.c +++ b/drivers/hwmon/pmbus/tps53679.c @@ -16,11 +16,14 @@ #include "pmbus.h" enum chips { - tps53647, tps53667, tps53679, tps53681, tps53688 + tps53647, tps53667, tps53676, tps53679, tps53681, tps53688 }; #define TPS53647_PAGE_NUM 1 +#define TPS53676_USER_DATA_03 0xb3 +#define TPS53676_MAX_PHASES 7 + #define TPS53679_PROT_VR12_5MV 0x01 /* VR12.0 mode, 5-mV DAC */ #define TPS53679_PROT_VR12_5_10MV 0x02 /* VR12.5 mode, 10-mV DAC */ #define TPS53679_PROT_VR13_10MV 0x04 /* VR13.0 mode, 10-mV DAC */ @@ -143,6 +146,45 @@ static int tps53681_identify(struct i2c_client *client, TPS53681_DEVICE_ID); } +static int tps53676_identify(struct i2c_client *client, + struct pmbus_driver_info *info) +{ + u8 buf[I2C_SMBUS_BLOCK_MAX]; + int phases_a = 0, phases_b = 0; + int i, ret; + + ret = i2c_smbus_read_block_data(client, PMBUS_IC_DEVICE_ID, buf); + if (ret < 0) + return ret; + if (strncmp("TI\x53\x67\x60", buf, 5)) { + dev_err(&client->dev, "Unexpected device ID: %s\n", buf); + return -ENODEV; + } + + ret = i2c_smbus_read_block_data(client, TPS53676_USER_DATA_03, buf); + if (ret < 0) + return ret; + if (ret != 24) + return -EIO; + for (i = 0; i < 2 * TPS53676_MAX_PHASES; i += 2) { + if (buf[i + 1] & 0x80) { + if (buf[i] & 0x08) + phases_b++; + else + phases_a++; + } + } + + info->format[PSC_VOLTAGE_OUT] = linear; + info->pages = 1; + info->phases[0] = phases_a; + if (phases_b > 0) { + info->pages = 2; + info->phases[1] = phases_b; + } + return 0; +} + static int tps53681_read_word_data(struct i2c_client *client, int page, int phase, int reg) { @@ -183,6 +225,7 @@ static struct pmbus_driver_info tps53679_info = { .pfunc[3] = PMBUS_HAVE_IOUT, .pfunc[4] = PMBUS_HAVE_IOUT, .pfunc[5] = PMBUS_HAVE_IOUT, + .pfunc[6] = PMBUS_HAVE_IOUT, }; static int tps53679_probe(struct i2c_client *client) @@ -206,6 +249,9 @@ static int tps53679_probe(struct i2c_client *client) info->pages = TPS53647_PAGE_NUM; info->identify = tps53679_identify; break; + case tps53676: + info->identify = tps53676_identify; + break; case tps53679: case tps53688: info->pages = TPS53679_PAGE_NUM; @@ -225,8 +271,10 @@ static int tps53679_probe(struct i2c_client *client) } static const struct i2c_device_id tps53679_id[] = { + {"bmr474", tps53676}, {"tps53647", tps53647}, {"tps53667", tps53667}, + {"tps53676", tps53676}, {"tps53679", tps53679}, {"tps53681", tps53681}, {"tps53688", tps53688}, @@ -238,6 +286,7 @@ MODULE_DEVICE_TABLE(i2c, tps53679_id); static const struct of_device_id __maybe_unused tps53679_of_match[] = { {.compatible = "ti,tps53647", .data = (void *)tps53647}, {.compatible = "ti,tps53667", .data = (void *)tps53667}, + {.compatible = "ti,tps53676", .data = (void *)tps53676}, {.compatible = "ti,tps53679", .data = (void *)tps53679}, {.compatible = "ti,tps53681", .data = (void *)tps53681}, {.compatible = "ti,tps53688", .data = (void *)tps53688}, @@ -259,3 +308,4 @@ module_i2c_driver(tps53679_driver); MODULE_AUTHOR("Vadim Pasternak <vadimp@mellanox.com>"); MODULE_DESCRIPTION("PMBus driver for Texas Instruments TPS53679"); MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(PMBUS); |