BMC/Intel-BMC/linux.git/drivers/hwmon, branch dev-5.8

hwmon: (occ) Add new temperature sensor type

2020-08-06T00:30:33+00:00

The latest version of the On-Chip Controller (OCC) has a different format for the temperature sensor data. Add a new temperature sensor version to handle this data. OpenBMC-Staging-Count: 3 Signed-off-by: Eddie James Signed-off-by: Joel Stanley

hwmon: Add PECI dimmtemp driver

2020-08-06T00:30:33+00:00

This commit adds PECI dimmtemp hwmon driver. OpenBMC-Staging-Count: 3 Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery Signed-off-by: Joel Stanley

hwmon: Add PECI cputemp driver

2020-08-06T00:30:33+00:00

This commit adds PECI cputemp hwmon driver. OpenBMC-Staging-Count: 3 Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery Signed-off-by: Joel Stanley

pmbus (max31785): Wrap all I2C accessors in one-shot failure handlers

2020-08-06T00:30:29+00:00

The MAX31785(A) has shown erratic behaviour across multiple system designs, unexpectedly clock stretching and NAKing transactions. Perform a one-shot retry if necessary for all access attempts. OpenBMC-Staging-Count: 12 Signed-off-by: Andrew Jeffery Tested-by: George Keishing Signed-off-by: Joel Stanley

pmbus (core): One-shot retries for failure to set page

2020-08-06T00:30:29+00:00

Work around the shonky behaviour seen with the MAX31785 where we fail to set the page register in some circumstances. There's no real elegant way to do this. We can propagate the error up, but that forces us to retry the operation way up the call tree in any number of places. It also forces callers to split out pmbus_set_page() from the pmbus_{read,write}_{byte,word}_data() functions in order to differentiate between a failure to set the page and a failure to read a register (that might not exist, in which case an error is anticiptated). OpenBMC-Staging-Count: 12 Cc: Eddie James Cc: Matt Spinler Signed-off-by: Andrew Jeffery Reviewed-by: Eddie James Tested-by: George Keishing Signed-off-by: Joel Stanley

pmbus (core): Use driver callbacks in pmbus_get_fan_rate()

2020-08-06T00:30:29+00:00

The driver may have overridden the pmbus_read_byte_data() callback, so make sure we use that to achieve expected behaviour. This helps in the MAX31785 case where we may need to perform a one-shot retry of transfers in the face of a failure. OpenBMC-Staging-Count: 12 Signed-off-by: Andrew Jeffery Reviewed-by: Eddie James Tested-by: George Keishing Signed-off-by: Joel Stanley

pmbus (max31785): Add support for devicetree configuration

2020-08-06T00:30:29+00:00

OpenBMC-Staging-Count: 12 Signed-off-by: Andrew Jeffery Tested-by: George Keishing Signed-off-by: Joel Stanley

hwmon: (drivetemp) Avoid SCT usage on Toshiba DT01ACA family drives

2020-07-18T15:11:44+00:00

It has been observed that Toshiba DT01ACA family drives have WRITE FPDMA QUEUED command timeouts and sometimes just freeze until power-cycled under heavy write loads when their temperature is getting polled in SCT mode. The SMART mode seems to be fine, though. Let's make sure we don't use SCT mode for these drives then. While only the 3 TB model was actually caught exhibiting the problem let's play safe here to avoid data corruption and extend the ban to the whole family. Fixes: 5b46903d8bf3 ("hwmon: Driver for disk and solid state drives with temperature sensors") Cc: stable@vger.kernel.org Signed-off-by: Maciej S. Szmigiero Link: https://lore.kernel.org/r/0cb2e7022b66c6d21d3f189a12a97878d0e7511b.1595075458.git.mail@maciej.szmigiero.name Signed-off-by: Guenter Roeck

hwmon: (scmi) Fix potential buffer overflow in scmi_hwmon_probe()

2020-07-15T14:08:21+00:00

SMATCH detected a potential buffer overflow in the manipulation of hwmon_attributes array inside the scmi_hwmon_probe function: drivers/hwmon/scmi-hwmon.c:226 scmi_hwmon_probe() error: buffer overflow 'hwmon_attributes' 6 <= 9 Fix it by statically declaring the size of the array as the maximum possible as defined by hwmon_max define. Signed-off-by: Cristian Marussi Reviewed-by: Sudeep Holla Link: https://lore.kernel.org/r/20200715121338.GA18761@e119603-lin.cambridge.arm.com Signed-off-by: Guenter Roeck

hwmon: (nct6775) Accept PECI Calibration as temperature source for NCT6798D

2020-07-14T21:38:50+00:00

Stefan Dietrich reports invalid temperature source messages on Asus Formula XII Z490. nct6775 nct6775.656: Invalid temperature source 28 at index 0, source register 0x100, temp register 0x73 Debugging suggests that temperature source 28 reports the CPU temperature. Let's assume that temperature sources 28 and 29 reflect "PECI Agent {0,1} Calibration", similar to other chips of the series. Reported-by: Stefan Dietrich Cc: Stefan Dietrich Signed-off-by: Guenter Roeck