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opp: Reorder the code for !target_freq case 

Reorder the code a bit to make it more readable. Add additional comment
as well.

Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Clément Péron <peron.clem@gmail.com>
Tested-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Viresh Kumar 2020-05-15 12:37:24 +05:30
parent 0430b1d570
commit b23dfa3543
1 changed files with 10 additions and 4 deletions
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14
drivers/opp/core.c
View File

@ -817,15 +817,21 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
}
if (unlikely(!target_freq)) {
if (opp_table->required_opp_tables) {
ret = _set_required_opps(dev, opp_table, NULL);
} else if (!_get_opp_count(opp_table)) {
/*
* Some drivers need to support cases where some platforms may
* have OPP table for the device, while others don't and
* opp_set_rate() just needs to behave like clk_set_rate().
*/
if (!_get_opp_count(opp_table))
return 0;
} else {
if (!opp_table->required_opp_tables) {
dev_err(dev, "target frequency can't be 0\n");
ret = -EINVAL;
goto put_opp_table;
}
ret = _set_required_opps(dev, opp_table, NULL);
goto put_opp_table;
}