Unverified Commit 58a972ef authored Nov 11, 2019 by Keyon Jie Committed by Mark Brown Nov 12, 2019

ASoC: SOF: PM: add check before setting d0_substate



Add check before seeting d0_substate and return success if Audio DSP is
already in the target substate.

Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191111223343.19986-3-pierre-louis.bossart@linux.intel.com


Signed-off-by: Mark Brown <broonie@kernel.org>

parent 74b4dd04

sound/soc/sof/pm.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -416,6 +416,9 @@ int snd_sof_set_d0_substate(struct snd_sof_dev *sdev,
		{
		int ret;

		if (sdev->d0_substate == d0_substate)
		return 0;

		/* do platform specific set_state */
		ret = snd_sof_dsp_set_power_state(sdev, d0_substate);
		if (ret < 0)

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