BMC/Intel-BMC/linux.git/drivers/hwmon, branch dev-4.10

hwmon: (w83773g) Fix fault detection and reporting

2018-01-17T20:55:08+00:00

Smatch reports: drivers/hwmon/w83773g.c:105 get_fault() warn: shift has higher precedence than mask Code analysis shows that the code is indeed wrong. Fix it, and while we are at it, drop unnecessary typecast. OpenBMC-Staging-Count: 1 Fixes: 86a10c802362 ("hwmon: Add W83773G driver") Cc: Lei YU Reviewed-by: Lei YU Signed-off-by: Guenter Roeck Signed-off-by: Joel Stanley

hwmon: Add W83773G driver

2018-01-17T20:55:05+00:00

Nuvoton W83773G is a hardware monitor IC providing one local temperature and two remote temperature sensors. OpenBMC-Staging-Count: 1 Signed-off-by: Lei YU Signed-off-by: Guenter Roeck Signed-off-by: Joel Stanley

hwmon: (pmbus/ir35221) Remove unnecessary scaling

2018-01-16T17:54:30+00:00

The ir35221 datasheet describes specific scaling factors for a number of commands which the current driver applies when reading. However now that the ir35221 has been tested on machines with more easily verifiable readings these descriptions have turned out to be superfluous and reading each command according to the linear format is sufficient. OpenBMC-Staging-Count: 1 Signed-off-by: Samuel Mendoza-Jonas Signed-off-by: Joel Stanley

hwmon (occ): Fix integer overflow in multiplication

2018-01-16T17:54:30+00:00

Power values were overflowing INT_MAX when being converted to microwatts, even though the storage was sufficiently large (unsigned 64 bit). Change literals to unsigned long long. Also change tmep storage to u32 to avoid overflows at 65000 millidegrees. OpenBMC-Staging-Count: 1 Signed-off-by: Edward A. James Signed-off-by: Joel Stanley

hwmon (pmbus): cffps: Add led class device for power supply fault led

2018-01-16T17:54:28+00:00

This power supply device doesn't correctly manage it's own fault led. Add an led class device and register it so that userspace can manage power supply fault led as necessary. OpenBMC-Staging-Count: 1 Signed-off-by: Eddie James Signed-off-by: Joel Stanley

hwmon: (pmbus) cffps: Add debugfs entries

2018-01-16T17:54:28+00:00

Add debugfs entries for additional power supply data, including part number, serial number, FRU number, firmware revision, ccin, and the input history of the power supply. The input history is 10 minutes of input power data in the form of twenty 30-second packets. Each packet contains average and maximum power for that 30 second period. OpenBMC-Staging-Count: 1 Signed-off-by: Edward A. James [groeck: Fixed endianness problem] Signed-off-by: Guenter Roeck Signed-off-by: Joel Stanley

hwmon: (pmbus) cffps: Add PMBUS_SKIP_STATUS_CHECK

2018-01-16T17:54:27+00:00

This power supply device regularly fails to read VOUT_MODE due to the CML bit going high. This results in an incorrect exponent used for the voltage data, and therefore the power supply reports incorrect voltage. Work around this by setting the pmbus flag to skip the CML check. OpenBMC-Staging-Count: 1 Signed-off-by: Eddie James Fixes: f69316d62c70 ("hwmon: (pmbus) Add IBM Common Form Factor (CFF) ...") Signed-off-by: Guenter Roeck Signed-off-by: Joel Stanley

hwmon: (pmbus) Export pmbus device debugfs directory entry

2018-01-16T17:54:27+00:00

Pmbus client drivers, if they want to use debugfs, should use the same root directory as the pmbus debugfs entries are using. Therefore, export the device dentry for the pmbus client. OpenBMC-Staging-Count: 1 Signed-off-by: Edward A. James Signed-off-by: Guenter Roeck Signed-off-by: Joel Stanley

hwmon: (pmbus/core) Prevent unintentional setting of page to 0xFF

2018-01-16T17:54:26+00:00

The pmbus core may call read/write word data functions with a page value of -1, intending to perform the operation without setting the page. However, the read/write word data functions accept only unsigned 8-bit page numbers, and therefore cannot check for negative page number to avoid setting the page. This results in setting the page number to 0xFF. This may result in errors or undefined behavior of some devices (specifically the ir35221, which allows the page to be set to 0xFF, but some subsequent operations to read registers may fail). Switch the pmbus_set_page page parameter to an integer and perform the check for negative page there. Make read/write functions consistent in accepting an integer page number parameter. OpenBMC-Staging-Count: 1 Signed-off-by: Edward A. James Signed-off-by: Joel Stanley

pmbus: core: Switch PAGE failure dev_warn() to dev_dbg() for serenity

2017-10-30T03:28:17+00:00

Reduce kernel log spam from PMBus core failing a PAGE command to the MAX37185 (and any other device). It's a hardware-design or driver related fault, and is not anything the user can fix. Therefore reduce it from warn to debug. OpenBMC-Staging-Count: 1 Signed-off-by: Andrew Jeffery Acked-by: Andrew Geissler