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| author |   Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2021-08-12 18:19:40 -0500 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2021-08-13 13:16:16 +0100 |
| commit | 246dd4287dfbaaddc1511c744893621814618bc8 (patch) | |
| tree | ebce905ec6497c0ca4a45125cf1aa5ed733e07a1 /sound/soc/sof/intel/Kconfig | |
| parent | ASoC: SOF: Intel: simplify logic for DMI_L1 handling (diff) | |
| download | linux-246dd4287dfbaaddc1511c744893621814618bc8.tar.xz linux-246dd4287dfbaaddc1511c744893621814618bc8.zip | |
ASoC: SOF: Intel: make DMI L1 selection more robust
Exposing the DMI L1 configuration as a kernel Kconfig option was in
hindsight a really bad idea. It led to several errors reported by
distributions which selected it by mistake.
The Kconfig is now replaced with a kernel parameter. Since DMI L1
entry is incompatible with pause on a capture stream, the latter is
disabled when the kernel parameter is set.
Experimental results show an increased residency in higher C states
and a significant decrease of system power consumption for "work from
home" usages such as VoIP calls.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20210812231940.172547-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/intel/Kconfig')
| -rw-r--r-- | sound/soc/sof/intel/Kconfig | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/sound/soc/sof/intel/Kconfig b/sound/soc/sof/intel/Kconfig index ef8cf95b0edc..88b6176af021 100644 --- a/sound/soc/sof/intel/Kconfig +++ b/sound/soc/sof/intel/Kconfig @@ -249,16 +249,6 @@ config SND_SOC_SOF_HDA_PROBES Say Y if you want to enable probes. If unsure, select "N". -config SND_SOC_SOF_HDA_ALWAYS_ENABLE_DMI_L1 - bool "SOF Intel-HDA enable DMI Link L1" - help - This option enables DMI L1 for both playback and capture - and disables known workarounds for specific HDAudio platforms. - Only use to look into power optimizations on platforms not - affected by DMI L1 issues. This option is not recommended. - Say Y if you want to enable DMI Link L1. - If unsure, select "N". - endif ## SND_SOC_SOF_HDA_COMMON config SND_SOC_SOF_HDA_LINK_BASELINE |