linux-kernel - [PATCH 5.18 155/158] ASoC: SOF: pm: add explicit behavior for ACPI S1 and S2

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Date:   Wed, 27 Jul 2022 18:13:39 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Péter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>
Subject: [PATCH 5.18 155/158] ASoC: SOF: pm: add explicit behavior for ACPI S1 and S2

From: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>

commit a933084558c61cac8c902d2474b39444d87fba46 upstream.

The existing code only deals with S0 and S3, let's start adding S1 and S2.

No functional change.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@...ux.intel.com>
Link: https://lore.kernel.org/r/20220616201818.130802-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 sound/soc/sof/pm.c |   12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

--- a/sound/soc/sof/pm.c
+++ b/sound/soc/sof/pm.c
@@ -327,8 +327,18 @@ int snd_sof_prepare(struct device *dev)
 		return 0;
 
 #if defined(CONFIG_ACPI)
-	if (acpi_target_system_state() == ACPI_STATE_S0)
+	switch (acpi_target_system_state()) {
+	case ACPI_STATE_S0:
 		sdev->system_suspend_target = SOF_SUSPEND_S0IX;
+		break;
+	case ACPI_STATE_S1:
+	case ACPI_STATE_S2:
+	case ACPI_STATE_S3:
+		sdev->system_suspend_target = SOF_SUSPEND_S3;
+		break;
+	default:
+		break;
+	}
 #endif
 
 	return 0;