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Link: https://lore.kernel.org/r/c56177fdf046d80e0dec6031c4139cb4e8c39d31.1583136624.git.mchehab+huawei@kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
25 lines
1,003 B
ReStructuredText
25 lines
1,003 B
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0
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==========================
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Link Power Managent Policy
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==========================
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This parameter allows the user to set the link (interface) power management.
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There are 3 possible options:
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===================== =====================================================
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Value Effect
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===================== =====================================================
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min_power Tell the controller to try to make the link use the
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least possible power when possible. This may
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sacrifice some performance due to increased latency
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when coming out of lower power states.
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max_performance Generally, this means no power management. Tell
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the controller to have performance be a priority
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over power management.
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medium_power Tell the controller to enter a lower power state
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when possible, but do not enter the lowest power
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state, thus improving latency over min_power setting.
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===================== =====================================================
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