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linux
PM / devfreq: Limit max_freq with scaling_min_freq
Limit max_freq in devfreq_get_freq_range() with scaling_min_freq to avoid
showing an unreachable freq when reading it.
Use macro clamp to simplify code.
Signed-off-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Link: https://lore.kernel.org/lkml/20250421030020.3108405-3-zhenglifeng1@huawei.com/
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
authored by
Lifeng Zheng
and committed by
Chanwoo Choi
5487f259
914cc799
+2
-5
+2
-5
drivers/devfreq/devfreq.c
+2
-5
drivers/devfreq/devfreq.c
···
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(unsigned long)HZ_PER_KHZ * qos_max_freq);
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/* Apply constraints from OPP interface */
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*min_freq = max(*min_freq, devfreq->scaling_min_freq);
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*max_freq = min(*max_freq, devfreq->scaling_max_freq);
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if (*min_freq > *max_freq)
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*min_freq = *max_freq;
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*max_freq = clamp(*max_freq, devfreq->scaling_min_freq, devfreq->scaling_max_freq);
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*min_freq = clamp(*min_freq, devfreq->scaling_min_freq, *max_freq);
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}
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EXPORT_SYMBOL(devfreq_get_freq_range);
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