Masayuki Ishikawa 1dc77c2ec5 drivers: audio: Introduce a driver-specific spinlock to cxd56.c
Summary:
- This commit introduces a driver-specific spinlock to cxd56.c
  to improve performance in SMP mode.

Impact:
- cxd56.c in SMP mode only

Testing:
- Tested with nxplayer and nxrecorder with the following configs
- spresense:wifi, spresense:wifi_smp

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
2021-02-15 01:54:44 -08:00
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