From 24f08b3aa5a5e42977c5a1d711d5cb7d9adbd94d Mon Sep 17 00:00:00 2001
From: Bard Liao <yung-chuan.liao@linux.intel.com>
Date: Wed, 14 Jul 2021 11:22:07 +0800
Subject: [PATCH] soundwire: stream: don't program mockup device ports
Git-commit: 24f08b3aa5a5e42977c5a1d711d5cb7d9adbd94d
Patch-mainline: v5.15-rc1
References: bsc#1192354
Mockup devices don't take part in command/control operations and their
virtual ports shall not be programmed.
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Link: https://lore.kernel.org/r/20210714032209.11284-9-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/soundwire/stream.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index d84aaf115c13..5d4f6b308ef7 100644
--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -133,6 +133,9 @@ static int sdw_program_slave_port_params(struct sdw_bus *bus,
int ret;
u8 wbuf;
+ if (s_rt->slave->is_mockup_device)
+ return 0;
+
dpn_prop = sdw_get_slave_dpn_prop(s_rt->slave,
s_rt->direction,
t_params->port_num);
--
2.26.2