[v4,0/5] hwmon: (ina3221) Implement PM runtime to save power

Message

Nicolin Chen Oct. 25, 2018, 11:51 p.m. UTC

This series patches implement PM runtime feature in the ina3221 hwmon
driver (PATCH-5). However, PATCH-[1:4] are required to make sure that
the PM runtime feature would be functional and safe.

Changelog
v3->v4:
 * Added generic pm runtime functions to hwmon class (PATCH-1)
 * Updated to pass pm pointer via _with_info API (PATCH-5)
v2->v3:
 * Dropped timeout dev_err messages as it's indicated in errno (PATCH-4)
 * Improved a dev_err message and comments (PATCH-5)
v1->v2:
 * Added device pointer check (PATCH-1)
 * Returned 0 for alert flags (PATCH-2)
 * Moved CVRF polling to data read routine (PATCH-4)
 * Bypassed i2c_client->dev in suspend/resume() (PATCH-5)

Nicolin Chen (5):
  hwmon: (core) Add pm_runtime to hwmon class
  hwmon: (ina3221) Check channel status for alarms attribute read
  hwmon: (ina3221) Serialize sysfs ABI accesses
  hwmon: (ina3221) Make sure data is ready before reading
  hwmon: (ina3221) Add PM runtime support

 drivers/hwmon/hwmon.c   |  24 ++++
 drivers/hwmon/ina3221.c | 290 ++++++++++++++++++++++++++++++----------
 include/linux/hwmon.h   |   2 +
 3 files changed, 245 insertions(+), 71 deletions(-)