diff options
| author | Viresh Kumar <viresh.kumar@linaro.org> | 2022-05-31 13:24:21 +0530 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2022-07-08 11:27:49 +0530 |
| commit | 69b1af178a3a534da2f20fa0c7356fcbbe8cce1f (patch) | |
| tree | eacea8f3e990c335ccb828414a8822b96beb10cd /drivers/opp | |
| parent | c522ce8a08066b44539e0dd0998b8e3b277a759b (diff) | |
| download | linux-69b1af178a3a534da2f20fa0c7356fcbbe8cce1f.tar.bz2 | |
OPP: Add dev_pm_opp_get_supplies()
We already have an API for getting voltage information for a single
regulator, dev_pm_opp_get_voltage(), but there is nothing available for
multiple regulator case.
This patch adds a new API, dev_pm_opp_get_supplies(), to get all
information related to the supplies for an OPP.
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/opp')
| -rw-r--r-- | drivers/opp/core.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c index 5ecf077b6b17..3a794bff2ba1 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -118,6 +118,31 @@ unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) EXPORT_SYMBOL_GPL(dev_pm_opp_get_voltage); /** + * dev_pm_opp_get_supplies() - Gets the supply information corresponding to an opp + * @opp: opp for which voltage has to be returned for + * @supplies: Placeholder for copying the supply information. + * + * Return: negative error number on failure, 0 otherwise on success after + * setting @supplies. + * + * This can be used for devices with any number of power supplies. The caller + * must ensure the @supplies array must contain space for each regulator. + */ +int dev_pm_opp_get_supplies(struct dev_pm_opp *opp, + struct dev_pm_opp_supply *supplies) +{ + if (IS_ERR_OR_NULL(opp) || !supplies) { + pr_err("%s: Invalid parameters\n", __func__); + return -EINVAL; + } + + memcpy(supplies, opp->supplies, + sizeof(*supplies) * opp->opp_table->regulator_count); + return 0; +} +EXPORT_SYMBOL_GPL(dev_pm_opp_get_supplies); + +/** * dev_pm_opp_get_power() - Gets the power corresponding to an opp * @opp: opp for which power has to be returned for * |