diff options
| author | Viresh Kumar <viresh.kumar@linaro.org> | 2018-12-11 16:32:47 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-12 19:47:08 +0100 |
| commit | a1ea1fb46fbf1b10f32c445aff558a6a9686691e (patch) | |
| tree | 6e49cb6b98aee17d5a283e76d1ddba0538aafceb /drivers/opp | |
| parent | 4c67633d4756a98087331614671d99788af12887 (diff) | |
| download | linux-stable-a1ea1fb46fbf1b10f32c445aff558a6a9686691e.tar.gz linux-stable-a1ea1fb46fbf1b10f32c445aff558a6a9686691e.tar.bz2 linux-stable-a1ea1fb46fbf1b10f32c445aff558a6a9686691e.zip | |
OPP: Use opp_table->regulators to verify no regulator case
[ Upstream commit 90e3577b5feb42bac1269e16bb3d2bdd8f6df40f ]
The value of opp_table->regulator_count is not very consistent right now
and it may end up being 0 while we do have a "opp-microvolt" property in
the OPP table. It was kept that way as we used to check if any
regulators are set with the OPP core for a device or not using value of
regulator_count.
Lets use opp_table->regulators for that purpose as the meaning of
regulator_count is going to change in the later patches.
Reported-by: Quentin Perret <quentin.perret@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/opp')
| -rw-r--r-- | drivers/opp/core.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c index 31ff03dbeb83..f3433bf47b10 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -191,12 +191,12 @@ unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev) if (IS_ERR(opp_table)) return 0; - count = opp_table->regulator_count; - /* Regulator may not be required for the device */ - if (!count) + if (!opp_table->regulators) goto put_opp_table; + count = opp_table->regulator_count; + uV = kmalloc_array(count, sizeof(*uV), GFP_KERNEL); if (!uV) goto put_opp_table; @@ -976,6 +976,9 @@ static bool _opp_supported_by_regulators(struct dev_pm_opp *opp, struct regulator *reg; int i; + if (!opp_table->regulators) + return true; + for (i = 0; i < opp_table->regulator_count; i++) { reg = opp_table->regulators[i]; @@ -1263,7 +1266,7 @@ static int _allocate_set_opp_data(struct opp_table *opp_table) struct dev_pm_set_opp_data *data; int len, count = opp_table->regulator_count; - if (WARN_ON(!count)) + if (WARN_ON(!opp_table->regulators)) return -EINVAL; /* space for set_opp_data */ |