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PM / devfreq: Set scaling_max_freq to max on OPP notifier error

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[ Upstream commit e7cc792d00049c874010b398a27c3cc7bc8fef34 ]

The devfreq_notifier_call functions will update scaling_min_freq and
scaling_max_freq when the OPP table is updated.

If fetching the maximum frequency fails then scaling_max_freq remains
set to zero which is confusing. Set to ULONG_MAX instead so we don't
need special handling for this case in other places.

Signed-off-by: Leonard Crestez <[email protected]>
Reviewed-by: Matthias Kaehlcke <[email protected]>
Reviewed-by: Chanwoo Choi <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
This commit is contained in:
Leonard Crestez 2019-10-31 23:34:19 +02:00 • committed by Greg Kroah-Hartman
commit 43894f3ae3
1 changed files with 3 additions and 1 deletions
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4
drivers/devfreq/devfreq.c
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@ -560,8 +560,10 @@ static int devfreq_notifier_call(struct notifier_block *nb, unsigned long type,
goto out;
devfreq->scaling_max_freq = find_available_max_freq(devfreq);
if (!devfreq->scaling_max_freq)
if (!devfreq->scaling_max_freq) {
devfreq->scaling_max_freq = ULONG_MAX;
goto out;
}
err = update_devfreq(devfreq);