linux-kernel - [PATCH v4 2/3] ASoC: SOF: Intel: hda: Modify existing helper to disable WAKEEN

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 13 Jan 2021 02:11:24 +0800
From:   Kai-Heng Feng <kai.heng.feng@...onical.com>
To:     tiwai@...e.com, pierre-louis.bossart@...ux.intel.com,
        lgirdwood@...il.com, ranjani.sridharan@...ux.intel.com,
        kai.vehmanen@...ux.intel.com, daniel.baluta@....com
Cc:     broonie@...nel.org, Kai-Heng Feng <kai.heng.feng@...onical.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Guennadi Liakhovetski <guennadi.liakhovetski@...ux.intel.com>,
        Rander Wang <rander.wang@...el.com>,
        Payal Kshirsagar <payalskshirsagar1234@...il.com>,
        Keyon Jie <yang.jie@...ux.intel.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Marcin Rajwa <marcin.rajwa@...ux.intel.com>,
        Cezary Rojewski <cezary.rojewski@...el.com>,
        Fred Oh <fred.oh@...ux.intel.com>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        Amery Song <chao.song@...el.com>,
        sound-open-firmware@...a-project.org (moderated list:SOUND - SOUND OPEN
        FIRMWARE (SOF) DRIVERS),
        alsa-devel@...a-project.org (moderated list:SOUND - SOC LAYER / DYNAMIC
        AUDIO POWER MANAGEM...), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v4 2/3] ASoC: SOF: Intel: hda: Modify existing helper to disable WAKEEN

Modify hda_codec_jack_wake_enable() to also support disable WAKEEN.
In addition, this patch also moves the WAKEEN disablement call out of
hda_codec_jack_check() into hda_codec_jack_wake_enable().

This is a preparation for next patch.

No functional change intended.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
---
v3 v4:
 No change.
v2:
 Mention it moves the disabling part into another function.

 sound/soc/sof/intel/hda-codec.c | 16 +++++++---------
 sound/soc/sof/intel/hda-dsp.c   |  6 ++++--
 sound/soc/sof/intel/hda.h       |  2 +-
 3 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/sound/soc/sof/intel/hda-codec.c b/sound/soc/sof/intel/hda-codec.c
index df59c79cfdfc..b7e9931ead57 100644
--- a/sound/soc/sof/intel/hda-codec.c
+++ b/sound/soc/sof/intel/hda-codec.c
@@ -63,16 +63,18 @@ static int hda_codec_load_module(struct hda_codec *codec)
 }
 
 /* enable controller wake up event for all codecs with jack connectors */
-void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev)
+void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev, bool enable)
 {
 	struct hda_bus *hbus = sof_to_hbus(sdev);
 	struct hdac_bus *bus = sof_to_bus(sdev);
 	struct hda_codec *codec;
 	unsigned int mask = 0;
 
-	list_for_each_codec(codec, hbus)
-		if (codec->jacktbl.used)
-			mask |= BIT(codec->core.addr);
+	if (enable) {
+		list_for_each_codec(codec, hbus)
+			if (codec->jacktbl.used)
+				mask |= BIT(codec->core.addr);
+	}
 
 	snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, mask);
 }
@@ -81,12 +83,8 @@ void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev)
 void hda_codec_jack_check(struct snd_sof_dev *sdev)
 {
 	struct hda_bus *hbus = sof_to_hbus(sdev);
-	struct hdac_bus *bus = sof_to_bus(sdev);
 	struct hda_codec *codec;
 
-	/* disable controller Wake Up event*/
-	snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, 0);
-
 	list_for_each_codec(codec, hbus)
 		/*
 		 * Wake up all jack-detecting codecs regardless whether an event
@@ -96,7 +94,7 @@ void hda_codec_jack_check(struct snd_sof_dev *sdev)
 			pm_request_resume(&codec->core.dev);
 }
 #else
-void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev) {}
+void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev, bool enable) {}
 void hda_codec_jack_check(struct snd_sof_dev *sdev) {}
 #endif /* CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC */
 EXPORT_SYMBOL_NS(hda_codec_jack_wake_enable, SND_SOC_SOF_HDA_AUDIO_CODEC);
diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c
index 2b001151fe37..7d00107cf3b2 100644
--- a/sound/soc/sof/intel/hda-dsp.c
+++ b/sound/soc/sof/intel/hda-dsp.c
@@ -617,7 +617,7 @@ static int hda_suspend(struct snd_sof_dev *sdev, bool runtime_suspend)
 
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 	if (runtime_suspend)
-		hda_codec_jack_wake_enable(sdev);
+		hda_codec_jack_wake_enable(sdev, true);
 
 	/* power down all hda link */
 	snd_hdac_ext_bus_link_power_down_all(bus);
@@ -683,8 +683,10 @@ static int hda_resume(struct snd_sof_dev *sdev, bool runtime_resume)
 
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 	/* check jack status */
-	if (runtime_resume)
+	if (runtime_resume) {
+		hda_codec_jack_wake_enable(sdev, false);
 		hda_codec_jack_check(sdev);
+	}
 
 	/* turn off the links that were off before suspend */
 	list_for_each_entry(hlink, &bus->hlink_list, list) {
diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h
index 9ec8ae0fd649..a3b6f3e9121c 100644
--- a/sound/soc/sof/intel/hda.h
+++ b/sound/soc/sof/intel/hda.h
@@ -650,7 +650,7 @@ void sof_hda_bus_init(struct hdac_bus *bus, struct device *dev);
  */
 void hda_codec_probe_bus(struct snd_sof_dev *sdev,
 			 bool hda_codec_use_common_hdmi);
-void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev);
+void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev, bool enable);
 void hda_codec_jack_check(struct snd_sof_dev *sdev);
 
 #endif /* CONFIG_SND_SOC_SOF_HDA */
-- 
2.29.2