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ASoC: SOF: Intel: do not disable i915 power during probe

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Change HDA probe behaviour slightly so that i915 power is not
turned off if i915 audio codecs are found in the initial probe done
by SOF Intel driver, and power is kept on until HDA codec driver
probe runs.

This will reduce number of mode sets on platforms with low
minimum CDCLK (like GLK) and brings the SOF probe sequence closer
to legacy HDA driver in terms of i915 audio codec power management.

BugLink: https://github.com/thesofproject/linux/issues/1642
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200120160117.29130-3-kai.vehmanen@linux.intel.com
Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kai Vehmanen 2020-01-20 18:01:16 +02:00 committed by Mark Brown
parent 23ee09032d
commit 0c75419a94
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GPG key ID: 24D68B725D5487D0
1 changed files with 2 additions and 1 deletions
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3
sound/soc/sof/intel/hda.c
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@ -380,7 +380,8 @@ static int hda_init_caps(struct snd_sof_dev *sdev)
/* create codec instances */
hda_codec_probe_bus(sdev, hda_codec_use_common_hdmi);
hda_codec_i915_display_power(sdev, false);
if (!HDA_IDISP_CODEC(bus->codec_mask))
hda_codec_i915_display_power(sdev, false);
/*
* we are done probing so decrement link counts