4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Takashi Sakamoto o-takashi@sakamocchi.jp
commit fa9c98e4b975bb3192ed6af09d9fa282ed3cd8a0 upstream.
In an initial commit, 'SYNC_STATUS' register is referred to get clock configuration, however this is wrong, according to my local note at hand for reverse-engineering about packet dump. It should be 'CLOCK_CONFIG' register. Actually, ff400_dump_clock_config() is correctly programmed.
This commit fixes the bug.
Cc: stable@vger.kernel.org # v4.12+ Fixes: 76fdb3a9e13a ('ALSA: fireface: add support for Fireface 400') Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- sound/firewire/fireface/ff-protocol-ff400.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/sound/firewire/fireface/ff-protocol-ff400.c +++ b/sound/firewire/fireface/ff-protocol-ff400.c @@ -30,7 +30,7 @@ static int ff400_get_clock(struct snd_ff int err;
err = snd_fw_transaction(ff->unit, TCODE_READ_QUADLET_REQUEST, - FF400_SYNC_STATUS, ®, sizeof(reg), 0); + FF400_CLOCK_CONFIG, ®, sizeof(reg), 0); if (err < 0) return err; data = le32_to_cpu(reg);