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From:   Bard Liao <yung-chuan.liao@linux.intel.com>
To:     alsa-devel@alsa-project.org, vkoul@kernel.org
Cc:     vinod.koul@linaro.org, linux-kernel@vger.kernel.org, tiwai@suse.de,
        broonie@kernel.org, gregkh@linuxfoundation.org,
        srinivas.kandagatla@linaro.org,
        pierre-louis.bossart@linux.intel.com, sanyog.r.kale@intel.com,
        bard.liao@intel.com
Subject: [PATCH 08/10] soundwire: stream: don't program mockup device ports
Date:   Wed, 14 Jul 2021 11:22:07 +0800
Message-Id: <20210714032209.11284-9-yung-chuan.liao@linux.intel.com>
In-Reply-To: <20210714032209.11284-1-yung-chuan.liao@linux.intel.com>
References: <20210714032209.11284-1-yung-chuan.liao@linux.intel.com>
Precedence: bulk

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>
---
 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);
-- 
2.17.1