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| author | Mohan Kumar <mkumard@nvidia.com> | 2020-02-06 15:40:53 +0530 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-02-06 11:46:18 +0100 |
| commit | 6d011d5057ff88ee556c000ac6fe0be23bdfcd72 (patch) | |
| tree | 2b953164dce6f5f982dab4a2956e5a91029b4bcd /sound/core | |
| parent | f2adbae0cb20c8eaf06914b2187043ea944b0aff (diff) | |
| download | linux-6d011d5057ff88ee556c000ac6fe0be23bdfcd72.tar.gz linux-6d011d5057ff88ee556c000ac6fe0be23bdfcd72.tar.bz2 linux-6d011d5057ff88ee556c000ac6fe0be23bdfcd72.zip | |
ALSA: hda: Clear RIRB status before reading WP
RIRB interrupt status getting cleared after the write pointer is read
causes a race condition, where last response(s) into RIRB may remain
unserviced by IRQ, eventually causing azx_rirb_get_response to fall
back to polling mode. Clearing the RIRB interrupt status ahead of
write pointer access ensures that this condition is avoided.
Signed-off-by: Mohan Kumar <mkumard@nvidia.com>
Signed-off-by: Viswanath L <viswanathl@nvidia.com>
Link: https://lore.kernel.org/r/1580983853-351-1-git-send-email-viswanathl@nvidia.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core')
0 files changed, 0 insertions, 0 deletions