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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 06/10] soundwire: add flag to ignore all command/control for mockup devices
Date: Wed, 14 Jul 2021 11:22:05 +0800	[thread overview]
Message-ID: <20210714032209.11284-7-yung-chuan.liao@linux.intel.com> (raw)
In-Reply-To: <20210714032209.11284-1-yung-chuan.liao@linux.intel.com>

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

SoundWire mockup devices don't take part in the command/control
protocol, so all commands will complete with -ENODATA or
Command_Ignored results. With a flag, we can suppress such errors in
the bus management and make it appear as if all read/writes succeed.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
 include/linux/soundwire/sdw.h | 3 +++
 sound/soc/codecs/sdw-mockup.c | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index a48ac3e77301..76ce3f3ac0f2 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -661,6 +661,8 @@ struct sdw_slave_ops {
  * initialized
  * @first_interrupt_done: status flag tracking if the interrupt handling
  * for a Slave happens for the first time after enumeration
+ * @is_mockup_device: status flag used to squelch errors in the command/control
+ * protocol for SoundWire mockup devices
  */
 struct sdw_slave {
 	struct sdw_slave_id id;
@@ -683,6 +685,7 @@ struct sdw_slave {
 	struct completion initialization_complete;
 	u32 unattach_request;
 	bool first_interrupt_done;
+	bool is_mockup_device;
 };
 
 #define dev_to_sdw_dev(_dev) container_of(_dev, struct sdw_slave, dev)
diff --git a/sound/soc/codecs/sdw-mockup.c b/sound/soc/codecs/sdw-mockup.c
index a4f79eb2c69d..8ea13cfa9f8e 100644
--- a/sound/soc/codecs/sdw-mockup.c
+++ b/sound/soc/codecs/sdw-mockup.c
@@ -263,6 +263,8 @@ static int sdw_mockup_sdw_probe(struct sdw_slave *slave,
 	dev_set_drvdata(dev, sdw_mockup);
 	sdw_mockup->slave = slave;
 
+	slave->is_mockup_device = true;
+
 	ret =  devm_snd_soc_register_component(dev,
 					       &snd_soc_sdw_mockup_component,
 					       sdw_mockup_dai,
-- 
2.17.1


  parent reply	other threads:[~2021-07-14  3:22 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-14  3:21 [PATCH 00/10] soundwire/ASoC: add mockup codec support Bard Liao
2021-07-14  3:22 ` [PATCH 01/10] ASoC: codecs: add SoundWire mockup device support Bard Liao
2021-07-14  3:22 ` [PATCH 02/10] ASoC: soc-acpi: cnl: add table for SoundWire mockup devices Bard Liao
2021-07-14  3:22 ` [PATCH 03/10] ASoC: soc-acpi: tgl: " Bard Liao
2021-07-14  3:22 ` [PATCH 04/10] ASoC: Intel: boards: sof_sdw: add SoundWire mockup codecs for tests Bard Liao
2021-07-14  3:22 ` [PATCH 05/10] soundwire: stream: don't abort bank switch on Command_Ignored/-ENODATA Bard Liao
2021-07-14  3:22 ` Bard Liao [this message]
2021-07-14  3:22 ` [PATCH 07/10] soundwire: bus: squelch error returned by mockup devices Bard Liao
2021-07-14  3:22 ` [PATCH 08/10] soundwire: stream: don't program mockup device ports Bard Liao
2021-07-14  3:22 ` [PATCH 09/10] soundwire: cadence: add debugfs interface for PDI loopbacks Bard Liao
2021-07-14  3:22 ` [PATCH 10/10] soundwire: cadence: override PDI configurations to create loopback Bard Liao
2021-07-14 19:33 ` [PATCH 00/10] soundwire/ASoC: add mockup codec support Mark Brown
2021-08-02  5:38   ` Vinod Koul
2021-07-14 19:35 ` (subset) " Mark Brown
2021-07-29  7:07   ` Liao, Bard
2021-08-02  5:39 ` Vinod Koul

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