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From: Mohan Kumar <mkumard@nvidia.com>
To: <tiwai@suse.com>, <aplattner@nvidia.com>, <spujar@nvidia.com>
Cc: <alsa-devel@alsa-project.org>, <linux-tegra@vger.kernel.org>,
	<treding@nvidia.com>, <jonathanh@nvidia.com>,
	Mohan Kumar <mkumard@nvidia.com>
Subject: [PATCH 2/2] ALSA: hda/tegra: Program WAKEEN register for Tegra
Date: Tue, 25 Aug 2020 10:54:15 +0530	[thread overview]
Message-ID: <20200825052415.20626-3-mkumard@nvidia.com> (raw)
In-Reply-To: <20200825052415.20626-1-mkumard@nvidia.com>

The WAKEEN bits are used to indicate which bits in the
STATESTS register may cause wake event during the codec
state change request. Configure the WAKEEN register for
the Tegra to detect the wake events.

Signed-off-by: Mohan Kumar <mkumard@nvidia.com>
---
 sound/pci/hda/hda_tegra.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c
index c94553bcca88..70164d1428d4 100644
--- a/sound/pci/hda/hda_tegra.c
+++ b/sound/pci/hda/hda_tegra.c
@@ -179,6 +179,10 @@ static int __maybe_unused hda_tegra_runtime_suspend(struct device *dev)
 	struct hda_tegra *hda = container_of(chip, struct hda_tegra, chip);
 
 	if (chip && chip->running) {
+		/* enable controller wake up event */
+		azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
+			   STATESTS_INT_MASK);
+
 		azx_stop_chip(chip);
 		azx_enter_link_reset(chip);
 	}
@@ -200,6 +204,9 @@ static int __maybe_unused hda_tegra_runtime_resume(struct device *dev)
 	if (chip && chip->running) {
 		hda_tegra_init(hda);
 		azx_init_chip(chip, 1);
+		/* disable controller wake up event*/
+		azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
+			   ~STATESTS_INT_MASK);
 	}
 
 	return 0;
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Mohan Kumar <mkumard@nvidia.com>
To: <tiwai@suse.com>, <aplattner@nvidia.com>, <spujar@nvidia.com>
Cc: linux-tegra@vger.kernel.org, alsa-devel@alsa-project.org,
	treding@nvidia.com, Mohan Kumar <mkumard@nvidia.com>,
	jonathanh@nvidia.com
Subject: [PATCH 2/2] ALSA: hda/tegra: Program WAKEEN register for Tegra
Date: Tue, 25 Aug 2020 10:54:15 +0530	[thread overview]
Message-ID: <20200825052415.20626-3-mkumard@nvidia.com> (raw)
In-Reply-To: <20200825052415.20626-1-mkumard@nvidia.com>

The WAKEEN bits are used to indicate which bits in the
STATESTS register may cause wake event during the codec
state change request. Configure the WAKEEN register for
the Tegra to detect the wake events.

Signed-off-by: Mohan Kumar <mkumard@nvidia.com>
---
 sound/pci/hda/hda_tegra.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c
index c94553bcca88..70164d1428d4 100644
--- a/sound/pci/hda/hda_tegra.c
+++ b/sound/pci/hda/hda_tegra.c
@@ -179,6 +179,10 @@ static int __maybe_unused hda_tegra_runtime_suspend(struct device *dev)
 	struct hda_tegra *hda = container_of(chip, struct hda_tegra, chip);
 
 	if (chip && chip->running) {
+		/* enable controller wake up event */
+		azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
+			   STATESTS_INT_MASK);
+
 		azx_stop_chip(chip);
 		azx_enter_link_reset(chip);
 	}
@@ -200,6 +204,9 @@ static int __maybe_unused hda_tegra_runtime_resume(struct device *dev)
 	if (chip && chip->running) {
 		hda_tegra_init(hda);
 		azx_init_chip(chip, 1);
+		/* disable controller wake up event*/
+		azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
+			   ~STATESTS_INT_MASK);
 	}
 
 	return 0;
-- 
2.17.1


  parent reply	other threads:[~2020-08-25  5:24 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-25  5:24 [PATCH 0/2] Tegra HDA specific fixes Mohan Kumar
2020-08-25  5:24 ` Mohan Kumar
2020-08-25  5:24 ` [PATCH 1/2] ALSA: hda: Fix 2 channel swapping for Tegra Mohan Kumar
2020-08-25  5:24   ` Mohan Kumar
2020-08-25  7:36   ` Takashi Iwai
2020-08-25  7:36     ` Takashi Iwai
2020-08-25  5:24 ` Mohan Kumar [this message]
2020-08-25  5:24   ` [PATCH 2/2] ALSA: hda/tegra: Program WAKEEN register " Mohan Kumar
2020-08-25  7:36   ` Takashi Iwai
2020-08-25  7:36     ` Takashi Iwai
2020-08-25  5:31 ` [PATCH 0/2] Tegra HDA specific fixes Sameer Pujar
2020-08-25  5:31   ` Sameer Pujar

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