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From: Takashi Iwai <tiwai@suse.de>
To: alsa-devel@alsa-project.org
Subject: [alsa-devel] [PATCH 1/3] ALSA: hda/ca0132 - Keep power on during processing DSP response
Date: Fri, 13 Dec 2019 09:51:09 +0100
Message-ID: <20191213085111.22855-2-tiwai@suse.de> (raw)
In-Reply-To: <20191213085111.22855-1-tiwai@suse.de>

We need to keep power on while processing the DSP response via unsol
event.  Each snd_hda_codec_read() call does the power management, so
it should work normally, but still it's safer to keep the power up for
the whole function.

Fixes: a73d511c4867 ("ALSA: hda/ca0132: Add unsol handler for DSP and jack detection")
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_ca0132.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index b7a1abb3e231..c3d34ff3d9ec 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -7588,12 +7588,14 @@ static void ca0132_process_dsp_response(struct hda_codec *codec,
 	struct ca0132_spec *spec = codec->spec;
 
 	codec_dbg(codec, "ca0132_process_dsp_response\n");
+	snd_hda_power_up_pm(codec);
 	if (spec->wait_scp) {
 		if (dspio_get_response_data(codec) >= 0)
 			spec->wait_scp = 0;
 	}
 
 	dspio_clear_response_queue(codec);
+	snd_hda_power_down_pm(codec);
 }
 
 static void hp_callback(struct hda_codec *codec, struct hda_jack_callback *cb)
-- 
2.16.4

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Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-13  8:51 [alsa-devel] [PATCH 0/3] ALSA: hda/ca0132 - Small fixes Takashi Iwai
2019-12-13  8:51 ` Takashi Iwai [this message]
2019-12-13  8:51 ` [alsa-devel] [PATCH 2/3] ALSA: hda/ca0132 - Avoid endless loop Takashi Iwai
2019-12-13  8:51 ` [alsa-devel] [PATCH 3/3] ALSA: hda/ca0132 - Fix work handling in delayed HP detection Takashi Iwai

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