ALSA: hda/tegra: Program WAKEEN register for Tegra (23d63a31) · Commits · 戴 / test

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>

sound/pci/hda/hda_tegra.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -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;

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