From 1952d79a0d2635c9130a48a598dd2f1eea70c45b Mon Sep 17 00:00:00 2001 From: Eddie James Date: Thu, 19 Dec 2019 14:50:06 -0600 Subject: [PATCH] hwmon: (pmbus/ibm-cffps) Add the VMON property for version 2 Version 2 of the PSU supports reading an auxiliary voltage. Use the pmbus VMON property and associated virtual register to read it. Signed-off-by: Eddie James Link: https://lore.kernel.org/r/1576788607-13567-3-git-send-email-eajames@linux.ibm.com Signed-off-by: Guenter Roeck --- drivers/hwmon/pmbus/ibm-cffps.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/hwmon/pmbus/ibm-cffps.c b/drivers/hwmon/pmbus/ibm-cffps.c index a564be9b013c..b37faf1440d2 100644 --- a/drivers/hwmon/pmbus/ibm-cffps.c +++ b/drivers/hwmon/pmbus/ibm-cffps.c @@ -28,6 +28,7 @@ #define CFFPS1_FW_NUM_BYTES 4 #define CFFPS2_FW_NUM_WORDS 3 #define CFFPS_SYS_CONFIG_CMD 0xDA +#define CFFPS_12VCS_VOUT_CMD 0xDE #define CFFPS_INPUT_HISTORY_CMD 0xD6 #define CFFPS_INPUT_HISTORY_SIZE 100 @@ -350,6 +351,9 @@ static int ibm_cffps_read_word_data(struct i2c_client *client, int page, if (mfr & CFFPS_MFR_PS_KILL) rc |= PB_STATUS_OFF; break; + case PMBUS_VIRT_READ_VMON: + rc = pmbus_read_word_data(client, page, CFFPS_12VCS_VOUT_CMD); + break; default: rc = -ENODATA; break; @@ -453,7 +457,7 @@ static struct pmbus_driver_info ibm_cffps_info[] = { PMBUS_HAVE_TEMP2 | PMBUS_HAVE_TEMP3 | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP | - PMBUS_HAVE_STATUS_FAN12, + PMBUS_HAVE_STATUS_FAN12 | PMBUS_HAVE_VMON, .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT | PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 | PMBUS_HAVE_TEMP3 | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT,