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authorMohan Kumar <mkumard@nvidia.com>2020-08-25 10:54:15 +0530
committerTakashi Iwai <tiwai@suse.de>2020-08-25 09:32:42 +0200
commit23d63a31d9f44d7daeac0d1fb65c6a73c70e5216 (patch)
treee7ac5edfb3f014991ff94272690ea819fd65cc7c /sound
parent216116eae43963c662eb84729507bad95214ca6b (diff)
ALSA: hda/tegra: Program WAKEEN register for Tegra
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>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/hda_tegra.c7
1 files changed, 7 insertions, 0 deletions
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;