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ALSA: hda/tegra: Program WAKEEN register for Tegra 

[ Upstream commit 23d63a31d9 ]

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>
5.4-rM2-2.2.x-imx-squashed
Mohan Kumar 2020-08-25 10:54:15 +05:30 committed by Greg Kroah-Hartman
parent ad360686fc
commit bcdbb7c8c7
1 changed files with 7 additions and 0 deletions
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7
sound/pci/hda/hda_tegra.c
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@ -169,6 +169,10 @@ static int __maybe_unused hda_tegra_runtime_suspend(struct device *dev)
struct hdac_bus *bus = azx_bus(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);
synchronize_irq(bus->irq);
azx_enter_link_reset(chip);
@ -191,6 +195,9 @@ 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;