ALSA: hda/tegra: Program WAKEEN register for Tegra

[ Upstream commit 23d63a31d9f44d7daeac0d1fb65c6a73c70e5216 ]

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>
Acked-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/20200825052415.20626-3-mkumard@nvidia.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c
index 0cc5fad1af8a90a71e32563317e440bf3b5198e3..ae40ca3f29837769f17d39d1d8975b84d8f6ff4e 100644 (file)
--- 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;