[F/G/Unstable/OEM-5.6] [PATCH 3/3] UBUNTU: SAUCE: ALSA: hda: fix jack detection with Realtek codecs when in D3

[Kai-Heng Feng]

From: Kai Vehmanen <kai.vehmanen at linux.intel.com>

BugLink: https://bugs.launchpad.net/bugs/1899586

In case HDA controller becomes active, but codec is runtime suspended,
jack detection is not successful and no interrupt is raised. This has
been observed with multiple Realtek codecs and HDA controllers from
different vendors. Bug does not occur if both codec and controller are
active, or both are in suspend. Bug can be easily hit on desktop systems
with no built-in speaker.

The problem can be fixed by powering up the codec once after every
controller runtime resume. Even if codec goes back to suspend later, the
jack detection will continue to work. Add a flag to 'hda_codec' to
describe codecs that require this flow from the controller driver.
Modify __azx_runtime_resume() to use pm_request_resume() to make the
intent clearer.

Mark all Realtek codecs with the new forced_resume flag.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=209379
Cc: Kailang Yang <kailang at realtek.com>
Co-developed-by: Kai-Heng Feng <kai.heng.feng at canonical.com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng at canonical.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen at linux.intel.com>
Cc: <stable at vger.kernel.org>
Link: https://lore.kernel.org/r/20201012102704.794423-1-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai at suse.de>
(cherry picked from commit a6e7d0a4bdb02a7a3ffe0b44aaa8842b7efdd056 git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git master)
Signed-off-by: Kai-Heng Feng <kai.heng.feng at canonical.com>
---
 include/sound/hda_codec.h     |  1 +
 sound/pci/hda/hda_intel.c     | 14 ++++++++------
 sound/pci/hda/patch_realtek.c |  1 +
 3 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/include/sound/hda_codec.h b/include/sound/hda_codec.h
index 225154a4f2ed..b4d112e40ae7 100644
--- a/include/sound/hda_codec.h
+++ b/include/sound/hda_codec.h
@@ -253,6 +253,7 @@ struct hda_codec {
 	unsigned int force_pin_prefix:1; /* Add location prefix */
 	unsigned int link_down_at_suspend:1; /* link down at runtime suspend */
 	unsigned int relaxed_resume:1;	/* don't resume forcibly for jack */
+	unsigned int forced_resume:1; /* forced resume for jack */
 	unsigned int mst_no_extra_pcms:1; /* no backup PCMs for DP-MST */
 
 #ifdef CONFIG_PM
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 35c7d5bad1bc..16c66aa4d381 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1002,12 +1002,14 @@ static void __azx_runtime_resume(struct azx *chip, bool from_rt)
 	azx_init_pci(chip);
 	hda_intel_init_chip(chip, true);
 
-	if (status && from_rt) {
-		list_for_each_codec(codec, &chip->bus)
-			if (!codec->relaxed_resume &&
-			    (status & (1 << codec->addr)))
-				schedule_delayed_work(&codec->jackpoll_work,
-						      codec->jackpoll_interval);
+	if (from_rt) {
+		list_for_each_codec(codec, &chip->bus) {
+			if (codec->relaxed_resume)
+				continue;
+
+			if (codec->forced_resume || (status & (1 << codec->addr)))
+				pm_request_resume(hda_codec_dev(codec));
+		}
 	}
 
 	/* power down again for link-controlled chips */
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index b44219859d82..9b635ae01b6c 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1150,6 +1150,7 @@ static int alc_alloc_spec(struct hda_codec *codec, hda_nid_t mixer_nid)
 	codec->single_adc_amp = 1;
 	/* FIXME: do we need this for all Realtek codec models? */
 	codec->spdif_status_reset = 1;
+	codec->forced_resume = 1;
 	codec->patch_ops = alc_patch_ops;
 
 	err = alc_codec_rename_from_preset(codec);
-- 
2.17.1