From: Hui Wang <hui.wang@xxxxxxxxxxxxx>
On some Lenovo and HP laptops, if both codec driver and SOF driver
are in runtime suspend mode, we plug a headset to the audio jack,
the headphone could be detected but Mic couldn't.
That is because when plugging, the headphone triggers a unsol event
first, and about 0.7s later (on the Lenovo X1 Carbon 7th), the Mic
triggers a unsol event. But if the codec driver enters runtime suspend
within 0.7s, the Mic can't trigger the unsol event.
If we don't set autosuspend_delay to a non-zero value for the hda codec
driver, it will enter runtime suspend immediately after the headphone
triggers the unsol event.
Follow the sequence of legacy hda driver and set a autosuspend delay
of 1sec after card registration (refer to pci/hda/hda_intel.c and
pci/hda/hda_codec.c).
Signed-off-by: Hui Wang <hui.wang@xxxxxxxxxxxxx>
Co-developed-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
Signed-off-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
Co-developed-by: Jaska Uimonen <jaska.uimonen@xxxxxxxxxxxxxxx>
Signed-off-by: Jaska Uimonen <jaska.uimonen@xxxxxxxxxxxxxxx>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Reviewed-by: Clarex Zhou <clarex.zhou@xxxxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
sound/soc/intel/boards/skl_hda_dsp_generic.c | 29 +++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/sound/soc/intel/boards/skl_hda_dsp_generic.c b/sound/soc/intel/boards/skl_hda_dsp_generic.c
index 3be764299ab0..64197b010e7d 100644
--- a/sound/soc/intel/boards/skl_hda_dsp_generic.c
+++ b/sound/soc/intel/boards/skl_hda_dsp_generic.c
@@ -113,6 +113,8 @@ static char hda_soc_components[30];
#define IDISP_ROUTE_COUNT (IDISP_DAI_COUNT * 2)
#define IDISP_CODEC_MASK 0x4
+#define HDA_CODEC_AUTOSUSPEND_DELAY_MS 1000
+
static int skl_hda_fill_card_info(struct snd_soc_acpi_mach_params *mach_params)
{
struct snd_soc_card *card = &hda_soc_card;
@@ -168,6 +170,27 @@ static int skl_hda_fill_card_info(struct snd_soc_acpi_mach_params *mach_params)
return 0;
}
+static void skl_set_hda_codec_autosuspend_delay(struct snd_soc_card *card)
+{
+ struct snd_soc_pcm_runtime *rtd =
+ list_first_entry(&card->rtd_list,
+ struct snd_soc_pcm_runtime, list);
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct hdac_hda_priv *hda_pvt;
+
+ if (!codec_dai)
+ return;
+
+ /*
+ * all codecs are on the same bus, so it's sufficient
+ * to lookup the first runtime and its codec, and set
+ * power save defaults for all codecs on the bus
+ */
+ hda_pvt = snd_soc_component_get_drvdata(codec_dai->component);
+ snd_hda_set_power_save(hda_pvt->codec.bus,
+ HDA_CODEC_AUTOSUSPEND_DELAY_MS);
+}
+
static int skl_hda_audio_probe(struct platform_device *pdev)
{
struct snd_soc_acpi_mach *mach;
@@ -206,7 +229,11 @@ static int skl_hda_audio_probe(struct platform_device *pdev)
hda_soc_card.components = hda_soc_components;
}
- return devm_snd_soc_register_card(&pdev->dev, &hda_soc_card);
+ ret = devm_snd_soc_register_card(&pdev->dev, &hda_soc_card);
+ if (!ret)
+ skl_set_hda_codec_autosuspend_delay(&hda_soc_card);
+
+ return ret;
}
static struct platform_driver skl_hda_audio = {
--
2.20.1
