kernel/linux.git/drivers/regulator/core.c, branch linux-4.20.y

Merge tag 'bd71847-support' into regulator-4.20

2018-09-28T14:07:30+00:00

regulator/mfd: Support for the ROHM BD71847 This adds support for the BD71847 which touches both MFD and regulator. There's a few other bits and pieces included as some dependency patches had already been applied so would've required rebasing.

regulator: Support regulators where voltage ranges are selectable

2018-09-28T13:57:03+00:00

For example ROHM BD71837 and ROHM BD71847 Power management ICs have regulators which provide multiple linear ranges. Ranges can be selected by individual non contagious bit in vsel register. Add regmap helper functions for selecting ranges. Signed-off-by: Matti Vaittinen Signed-off-by: Mark Brown

regulator: fix crash caused by null driver data

2018-09-20T16:04:51+00:00

dev_set_drvdata() needs to be called before device_register() exposes device to userspace. Otherwise kernel crashes after it gets null pointer from dev_get_drvdata() when userspace tries to access sysfs entries. [Removed backtrace for length -- broonie] Signed-off-by: Yu Zhao Signed-off-by: Mark Brown Cc: stable@vger.kernel.org

regulator: fix kernel-doc for regulator_suspend()

2018-09-04T15:57:23+00:00

Fix kernel-doc warning: ../drivers/regulator/core.c:4479: warning: Excess function parameter 'state' description in 'regulator_suspend' Signed-off-by: Randy Dunlap Cc: Liam Girdwood Cc: Mark Brown Signed-off-by: Mark Brown

regulator: Fix useless O^2 complexity in suspend/resume

2018-09-03T15:11:04+00:00

regulator_pm_ops with regulator_suspend and regulator_resume functions are assigned to every regulator device registered in the system, so there is no need to iterate over all again in them. Replace class_for_each_device() construction with direct operation on the rdev embedded in the given regulator device. This saves a lots of useless operations in suspend and resume paths. Fixes: f7efad10b5c4: regulator: add PM suspend and resume hooks Signed-off-by: Marek Szyprowski Signed-off-by: Mark Brown

regulator: Fix 'do-nothing' value for regulators without suspend state

2018-09-03T15:10:40+00:00

Some regulators don't have all states defined and in such cases regulator core should not assume anything. However in current implementation of of_get_regulation_constraints() DO_NOTHING_IN_SUSPEND enable value was set only for regulators which had suspend node defined, otherwise the default 0 value was used, what means DISABLE_IN_SUSPEND. This lead to broken system suspend/resume on boards, which had simple regulator constraints definition (without suspend state nodes). To avoid further mismatches between the default and uninitialized values of the suspend enabled/disabled states, change the values of the them, so default '0' means DO_NOTHING_IN_SUSPEND. Fixes: 72069f9957a1: regulator: leave one item to record whether regulator is enabled Signed-off-by: Marek Szyprowski Signed-off-by: Mark Brown Cc: stable@vger.kernel.org

regulator: core: Add locking to debugfs regulator_summary

2018-08-28T20:10:23+00:00

Most functions that access the rdev lock the rdev mutex before looking at data. ...but not the code that implements the debugfs regulator_summary. It probably should though, so let's do it. Note: this fixes no known issues. The problem was found only by code inspection. Signed-off-by: Douglas Anderson Signed-off-by: Mark Brown

regulator: core: Add consumer-requested load in regulator_summary

2018-08-28T20:10:21+00:00

It's handy to see the load requested by a regulator consumer in the regulator_summary. Add it. Signed-off-by: Douglas Anderson Signed-off-by: Mark Brown

regulator: core: Add the opmode to regulator_summary

2018-08-28T20:10:20+00:00

It's handy to know what opmode a regulator has been configured to in the summary. Add it. Signed-off-by: Douglas Anderson Signed-off-by: Mark Brown

regulator: core: Link consumer with regulator driver

2018-07-05T17:55:20+00:00

Add a device link between the consumer and the driver so that the consumer is not suspended before the driver. The goal is to avoid implementing suspend_late ops in regulator drivers. Signed-off-by: pascal paillet Signed-off-by: Mark Brown