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author | Takashi Iwai <tiwai@suse.de> | 2019-11-17 09:53:07 +0100 |
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committer | Takashi Iwai <tiwai@suse.de> | 2019-11-20 19:39:54 +0100 |
commit | fabb26dcd104027b971c018275fe40f2ebe09ae3 (patch) | |
tree | f6428eb1cdc7dbfa009e7d0bb684b0407b491307 /sound/pci/hda | |
parent | ALSA: pcm: Add the support for sync-stop operation (diff) | |
download | linux-dev-fabb26dcd104027b971c018275fe40f2ebe09ae3.tar.xz linux-dev-fabb26dcd104027b971c018275fe40f2ebe09ae3.zip |
ALSA: pcm: Add card sync_irq field
Many PCI and other drivers performs snd_pcm_period_elapsed() simply in
its interrupt handler, so the sync_stop operation is just to call
synchronize_irq(). Instead of putting this call multiple times,
introduce the common card->sync_irq field. When this field is set,
PCM core performs synchronize_irq() for sync-stop operation. Each
driver just needs to copy its local IRQ number to card->sync_irq, and
that's all we need.
Link: https://lore.kernel.org/r/20191117085308.23915-8-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda')
0 files changed, 0 insertions, 0 deletions