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>

diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c
index c94553b..70164d1 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;