BMC/Intel-BMC/linux.git/drivers, 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

gpio: aspeed: Add support for reset tolerance

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

Use the new pinconf parameter for state persistence to expose the associated capability of the Aspeed GPIO controller. Signed-off-by: Andrew Jeffery Reviewed-by: Joel Stanley Signed-off-by: Linus Walleij (cherry picked from commit 1b43d26985745901c87e0dca44c9b57896062306) Signed-off-by: Joel Stanley

gpio: gpiolib: Generalise state persistence beyond sleep

2018-01-16T17:54:29+00:00

General support for state persistence is added to gpiolib with the introduction of a new pinconf parameter to propagate the request to hardware. The existing persistence support for sleep is adapted to include hardware support if the GPIO driver provides it. Persistence continues to be enabled by default; in-kernel consumers can opt out, but userspace (currently) does not have a choice. The *_SLEEP_MAY_LOSE_VALUE and *_SLEEP_MAINTAIN_VALUE symbols are renamed, dropping the SLEEP prefix to reflect that the concept is no longer sleep-specific. I feel that renaming to just *_MAY_LOSE_VALUE could initially be misinterpreted, so I've further changed the symbols to *_TRANSITORY and *_PERSISTENT to address this. The sysfs interface is modified only to keep consistency with the chardev interface in enforcing persistence for userspace exports. Signed-off-by: Andrew Jeffery Reviewed-by: Charles Keepax Acked-by: Rob Herring Signed-off-by: Linus Walleij (cherry picked from commit e10f72bf4b3e8885c1915a119141481e7fc45ca8) Signed-off-by: Joel Stanley

gpio: core: Decouple open drain/source flag with active low/high

2018-01-16T17:54:29+00:00

Currently, the GPIO interface is said to Open Drain if it is Single Ended and active LOW. Similarly, it is said as Open Source if it is Single Ended and active HIGH. The active HIGH/LOW is used in the interface for setting the pin state to HIGH or LOW when enabling/disabling the interface. In Open Drain interface, pin is set to HIGH by putting pin in high impedance and LOW by driving to the LOW. In Open Source interface, pin is set to HIGH by driving pin to HIGH and set to LOW by putting pin in high impedance. With above, the Open Drain/Source is unrelated to the active LOW/HIGH in interface. There is interface where the enable/disable of interface is ether active LOW or HIGH but it is Open Drain type. Hence decouple the Open Drain with Single Ended + Active LOW and Open Source with Single Ended + Active HIGH. Adding different flag for the Open Drain/Open Source which is valid only when Single ended flag is enabled. Signed-off-by: Laxman Dewangan Signed-off-by: Linus Walleij (cherry picked from commit 4c0facddb7d88c78c8bd977c16faa647f079ccda) Signed-off-by: Andrew Jeffery Signed-off-by: Joel Stanley

gpiolib: Convert fwnode_get_named_gpiod() to configure GPIO

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

Make fwnode_get_named_gpiod() consistent with the rest of gpiod_get() like API, i.e. configure GPIO pin immediately after request. Besides obvious clean up it will help to configure pins based on firmware provided resources. Reviewed-by: Mika Westerberg Signed-off-by: Andy Shevchenko Signed-off-by: Linus Walleij (cherry picked from commit a264d10ff45c688293d9112fddd8d29c819e0853) Signed-off-by: Andrew Jeffery 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