From dcee767667f44ed0d40a3debf507a3ba027a1994 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.cirrus.com>
Date: Wed, 17 Nov 2021 13:22:56 +0000
Subject: [PATCH] firmware: cs_dsp: Add support for rev 2 coefficient files
Git-commit: dcee767667f44ed0d40a3debf507a3ba027a1994
Patch-mainline: v5.17-rc1
References: bsc#1203699

Add support for the revision 2 coefficient file, this format is
identical to revision 1 and was simply added by accident to some
firmware. However unfortunately many firmwares have leaked into
production using this and as such driver support really needs to
be added for it.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20211117132300.1290-6-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/firmware/cirrus/cs_dsp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/firmware/cirrus/cs_dsp.c b/drivers/firmware/cirrus/cs_dsp.c
index 3d21574f3a44..62ba4ebbf11f 100644
--- a/drivers/firmware/cirrus/cs_dsp.c
+++ b/drivers/firmware/cirrus/cs_dsp.c
@@ -1990,6 +1990,7 @@ static int cs_dsp_load_coeff(struct cs_dsp *dsp, const struct firmware *firmware
 
 	switch (be32_to_cpu(hdr->rev) & 0xff) {
 	case 1:
+	case 2:
 		break;
 	default:
 		cs_dsp_err(dsp, "%s: Unsupported coefficient file format %d\n",
-- 
2.35.3