Merge tag 'hwmon-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "core:
   - Add support for enable attributes to hwmon core
   - Add intrusion templates

  pmbus:
   - Support for Infineon Multi-phase xdpe122 family controllers
   - Support for Intel IMVP9 and AMD 6.25mV modes
   - Support for vid mode detection per page bases
   - Detect if chip is write protected
   - Support for MAX20730, MAX20734, MAX20743, MAX20796, UCD90320,
     TPS53688
   - Various improvements to ibm-cffps driver

  k10temp:
   - Support for additional temperature sensors as well as voltage and
     current telemetry for Zen CPUs

  w83627ehf:
   - Remove support for NCT6775, NCT6776 (they have their own driver)

  New drivers:
   - ADM1177
   - MAX31730
   - Driver for disk and solid state drives with temperature sensors

  Other:
   - pwm-fan: stop fan on shutdown"

* tag 'hwmon-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (35 commits)
  hwmon: (k10temp) Display up to eight sets of CCD temperatures
  hwmon: (k10temp) Add debugfs support
  hwmon: (k10temp) Don't show temperature limits on Ryzen (Zen) CPUs
  hwmon: (k10temp) Show core and SoC current and voltages on Ryzen CPUs
  hwmon: (k10temp) Report temperatures per CPU die
  hmon: (k10temp) Convert to use devm_hwmon_device_register_with_info
  hwmon: (k10temp) Use bitops
  hwmon: (pwm-fan) stop fan on shutdown
  MAINTAINERS: add entry for ADM1177 driver
  dt-binding: hwmon: Add documentation for ADM1177
  hwmon: (adm1177) Add ADM1177 Hot Swap Controller and Digital Power Monitor driver
  docs: hwmon: Include 'xdpe12284.rst' into docs
  hwmon: (pmbus) Add support for Infineon Multi-phase xdpe122 family controllers
  hwmon: (pmbus/tps53679) Extend device list supported by driver
  hwmon: (pmbus/core) Add support for Intel IMVP9 and AMD 6.25mV modes
  hwmon: (pmbus/core) Add support for vid mode detection per page bases
  hwmon: (pmbus/ibm-cffps) Prevent writing on_off_config with bad data
  hwmon: (w83627ehf) Remove set but not used variable 'fan4min'
  hwmon: Driver for disk and solid state drives with temperature sensors
  hwmon: (pmbus/ibm-cffps) Fix the LED behavior when turned off
  ...

1 files changed, 21 insertions, 1 deletions

diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 8470097907bc..d9c17feb7b4a 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -696,7 +696,7 @@ static long pmbus_reg2data_vid(struct pmbus_data *data,
 	long val = sensor->data;
 	long rv = 0;
 
-	switch (data->info->vrm_version) {
+	switch (data->info->vrm_version[sensor->page]) {
 	case vr11:
 		if (val >= 0x02 && val <= 0xb2)
 			rv = DIV_ROUND_CLOSEST(160000 - (val - 2) * 625, 100);
@@ -709,6 +709,14 @@ static long pmbus_reg2data_vid(struct pmbus_data *data,
 		if (val >= 0x01)
 			rv = 500 + (val - 1) * 10;
 		break;
+	case imvp9:
+		if (val >= 0x01)
+			rv = 200 + (val - 1) * 10;
+		break;
+	case amd625mv:
+		if (val >= 0x0 && val <= 0xd8)
+			rv = DIV_ROUND_CLOSEST(155000 - val * 625, 100);
+		break;
 	}
 	return rv;
 }
@@ -1088,6 +1096,9 @@ static struct pmbus_sensor *pmbus_add_sensor(struct pmbus_data *data,
 		snprintf(sensor->name, sizeof(sensor->name), "%s%d",
 			 name, seq);
 
+	if (data->flags & PMBUS_WRITE_PROTECTED)
+		readonly = true;
+
 	sensor->page = page;
 	sensor->reg = reg;
 	sensor->class = class;
@@ -2141,6 +2152,15 @@ static int pmbus_init_common(struct i2c_client *client, struct pmbus_data *data,
 	if (ret >= 0 && (ret & PB_CAPABILITY_ERROR_CHECK))
 		client->flags |= I2C_CLIENT_PEC;
 
+	/*
+	 * Check if the chip is write protected. If it is, we can not clear
+	 * faults, and we should not try it. Also, in that case, writes into
+	 * limit registers need to be disabled.
+	 */
+	ret = i2c_smbus_read_byte_data(client, PMBUS_WRITE_PROTECT);
+	if (ret > 0 && (ret & PB_WP_ANY))
+		data->flags |= PMBUS_WRITE_PROTECTED | PMBUS_SKIP_STATUS_CHECK;
+
 	if (data->info->pages)
 		pmbus_clear_faults(client);
 	else