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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2018-09-03 16:49:37 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-09-03 16:10:40 +0100 |
| commit | 3edd79cf5a44b12dbb13bc320f5788aed6562b36 (patch) | |
| tree | 113e6648b42a65f5eab03fdf69227f4ca27707f3 /drivers/regulator | |
| parent | ef394f3fbecbe61d69450ad8cf0fa8f713c8ce8f (diff) | |
| download | linux-3edd79cf5a44b12dbb13bc320f5788aed6562b36.tar.gz linux-3edd79cf5a44b12dbb13bc320f5788aed6562b36.tar.bz2 linux-3edd79cf5a44b12dbb13bc320f5788aed6562b36.zip | |
regulator: Fix 'do-nothing' value for regulators without suspend state
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 <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/core.c | 2 | ||||
| -rw-r--r-- | drivers/regulator/of_regulator.c | 2 |
2 files changed, 1 insertions, 3 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index bb1324f93143..90215f57270f 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -3161,7 +3161,7 @@ static inline int regulator_suspend_toggle(struct regulator_dev *rdev, if (!rstate->changeable) return -EPERM; - rstate->enabled = en; + rstate->enabled = (en) ? ENABLE_IN_SUSPEND : DISABLE_IN_SUSPEND; return 0; } diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index 638f17d4c848..210fc20f7de7 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -213,8 +213,6 @@ static void of_get_regulation_constraints(struct device_node *np, else if (of_property_read_bool(suspend_np, "regulator-off-in-suspend")) suspend_state->enabled = DISABLE_IN_SUSPEND; - else - suspend_state->enabled = DO_NOTHING_IN_SUSPEND; if (!of_property_read_u32(np, "regulator-suspend-min-microvolt", &pval)) |