From fa9c98e4b975bb3192ed6af09d9fa282ed3cd8a0 Mon Sep 17 00:00:00 2001
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Sun, 9 Dec 2018 17:04:19 +0900
Subject: [PATCH] ALSA: fireface: fix reference to wrong register for clock configuration
Git-commit: fa9c98e4b975bb3192ed6af09d9fa282ed3cd8a0
Patch-mainline: v4.20-rc7
References: bsc#1051510

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>

---
 sound/firewire/fireface/ff-protocol-ff400.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/firewire/fireface/ff-protocol-ff400.c b/sound/firewire/fireface/ff-protocol-ff400.c
index 64c3cb0fb926..654a50319198 100644
--- 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 *ff, unsigned int *rate,
 	int err;
 
 	err = snd_fw_transaction(ff->unit, TCODE_READ_QUADLET_REQUEST,
-				 FF400_SYNC_STATUS, &reg, sizeof(reg), 0);
+				 FF400_CLOCK_CONFIG, &reg, sizeof(reg), 0);
 	if (err < 0)
 		return err;
 	data = le32_to_cpu(reg);
-- 
2.19.2