Takashi Sakamoto 2e21e5b225 ALSA: firewire-tascam: check intermediate state of clock status and retry ... commit e1a00b5b25 upstream. 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: e453df44f0 ("ALSA: firewire-tascam: add PCM functionality") Cc: <stable@vger.kernel.org> # v4.4+ Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20190910135152.29800-3-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-10-05 13:10:00 +02:00
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amdtp-tascam.c	locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()	2017-10-25 11:01:08 +02:00
Makefile	ALSA: firewire-tascam: add support for MIDI functionality	2015-10-12 14:16:18 +02:00
tascam-hwdep.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
tascam-midi.c	ALSA: firewire-tascam: support drain callback for MIDI playback substream	2017-04-14 14:50:43 +02:00
tascam-pcm.c	ALSA: firewire-tascam: handle error code when getting current source of clock	2019-10-05 13:10:00 +02:00
tascam-proc.c	sound: Use octal not symbolic permissions	2018-05-28 11:27:20 +02:00
tascam-stream.c	ALSA: firewire-tascam: check intermediate state of clock status and retry	2019-10-05 13:10:00 +02:00
tascam-transaction.c	locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()	2017-10-25 11:01:08 +02:00
tascam.c	ALSA: firewire-tascam: fix memory leak of private data	2018-09-13 15:14:39 +02:00
tascam.h	ALSA: firewire: remove support for 16 bit PCM samples in playback substream	2017-05-22 16:24:08 +02:00