diff options
| author | Brandon Wyman <bjwyman@gmail.com> | 2021-10-04 17:43:39 +0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2021-10-12 17:22:41 +0300 |
| commit | 8a5cfcfa9445987719b1f82b7bcabe5eb27187cf (patch) | |
| tree | cecc23cb3d63d523ee95cfb68bc18300017992d4 | |
| parent | a111ec399c60a860209205a9e303b4d4a9274968 (diff) | |
| download | linux-8a5cfcfa9445987719b1f82b7bcabe5eb27187cf.tar.xz | |
hwmon: (pmbus/ibm-cffps) Use MFR_ID to choose version
There are multiple power supplies that will indicate
CFFPS_CCIN_VERSION_1, use the manufacturer ID to determine if it should
be treated as version cffps1 or version cffps2.
Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
Link: https://lore.kernel.org/r/20211004144339.2634330-2-bjwyman@gmail.com
[groeck: Fixed continuation line alignment]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| -rw-r--r-- | drivers/hwmon/pmbus/ibm-cffps.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/hwmon/pmbus/ibm-cffps.c b/drivers/hwmon/pmbus/ibm-cffps.c index 226a60aea298..e3294a1a54bb 100644 --- a/drivers/hwmon/pmbus/ibm-cffps.c +++ b/drivers/hwmon/pmbus/ibm-cffps.c @@ -508,16 +508,27 @@ static int ibm_cffps_probe(struct i2c_client *client) u16 ccin_revision = 0; u16 ccin_version = CFFPS_CCIN_VERSION_1; int ccin = i2c_smbus_read_word_swapped(client, CFFPS_CCIN_CMD); + char mfg_id[I2C_SMBUS_BLOCK_MAX + 2] = { 0 }; if (ccin > 0) { ccin_revision = FIELD_GET(CFFPS_CCIN_REVISION, ccin); ccin_version = FIELD_GET(CFFPS_CCIN_VERSION, ccin); } + rc = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, mfg_id); + if (rc < 0) { + dev_err(&client->dev, "Failed to read Manufacturer ID\n"); + return rc; + } + switch (ccin_version) { default: case CFFPS_CCIN_VERSION_1: - vs = cffps1; + if ((strncmp(mfg_id, "ACBE", 4) == 0) || + (strncmp(mfg_id, "ARTE", 4) == 0)) + vs = cffps1; + else + vs = cffps2; break; case CFFPS_CCIN_VERSION_2: vs = cffps2; |