On Tue, 10 Sep 2019 15:51:52 +0200, Takashi Sakamoto wrote:
2 bytes in MSB of register for clock status is zero during intermediate state after changing status of sampling clock in models of TASCAM FireWire series. The duration of this state differs depending on cases. During the state, it's better to retry reading the register for current status of the clock.
In current implementation, the intermediate state is checked only when getting current sampling transmission frequency, then retry reading. This care is required for the other operations to read the register.
This commit moves the codes of check and retry into helper function commonly used for operations to read the register.
Fixes: e453df44f0d6 ("ALSA: firewire-tascam: add PCM functionality") Cc: stable@vger.kernel.org # v4.4+ Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp
Applied, thanks.
Takashi