xref: /kernel/linux/linux-5.10/Documentation/ABI/testing/sysfs-bus-soundwire-slave (revision 8c2ecf20)

What:		/sys/bus/soundwire/devices/sdw:.../status
		/sys/bus/soundwire/devices/sdw:.../device_number

Date:		September 2020

Contact:	Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
		Bard Liao <yung-chuan.liao@linux.intel.com>
		Vinod Koul <vkoul@kernel.org>

Description:	SoundWire Slave status

		These properties report the Slave status, e.g. if it
		is UNATTACHED or not, and in the latter case show the
		device_number. This status information is useful to
		detect devices exposed by platform firmware but not
		physically present on the bus, and conversely devices
		not exposed in platform firmware but enumerated.

What:		/sys/bus/soundwire/devices/sdw:.../dev-properties/mipi_revision
		/sys/bus/soundwire/devices/sdw:.../dev-properties/wake_capable
		/sys/bus/soundwire/devices/sdw:.../dev-properties/test_mode_capable
		/sys/bus/soundwire/devices/sdw:.../dev-properties/clk_stop_mode1
		/sys/bus/soundwire/devices/sdw:.../dev-properties/simple_clk_stop_capable
		/sys/bus/soundwire/devices/sdw:.../dev-properties/clk_stop_timeout
		/sys/bus/soundwire/devices/sdw:.../dev-properties/ch_prep_timeout
		/sys/bus/soundwire/devices/sdw:.../dev-properties/reset_behave
		/sys/bus/soundwire/devices/sdw:.../dev-properties/high_PHY_capable
		/sys/bus/soundwire/devices/sdw:.../dev-properties/paging_support
		/sys/bus/soundwire/devices/sdw:.../dev-properties/bank_delay_support
		/sys/bus/soundwire/devices/sdw:.../dev-properties/p15_behave
		/sys/bus/soundwire/devices/sdw:.../dev-properties/master_count
		/sys/bus/soundwire/devices/sdw:.../dev-properties/source_ports
		/sys/bus/soundwire/devices/sdw:.../dev-properties/sink_ports

Date:		May 2020

Contact:	Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
		Bard Liao <yung-chuan.liao@linux.intel.com>
		Vinod Koul <vkoul@kernel.org>

Description:	SoundWire Slave DisCo properties.
		These properties are defined by MIPI DisCo Specification
		for SoundWire. They define various properties of the
		SoundWire Slave and are used by the bus to configure
		the Slave


What:		/sys/bus/soundwire/devices/sdw:.../dp0/max_word
		/sys/bus/soundwire/devices/sdw:.../dp0/min_word
		/sys/bus/soundwire/devices/sdw:.../dp0/words
		/sys/bus/soundwire/devices/sdw:.../dp0/BRA_flow_controlled
		/sys/bus/soundwire/devices/sdw:.../dp0/simple_ch_prep_sm
		/sys/bus/soundwire/devices/sdw:.../dp0/imp_def_interrupts

Date:		May 2020

Contact:	Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
		Bard Liao <yung-chuan.liao@linux.intel.com>
		Vinod Koul <vkoul@kernel.org>

Description:	SoundWire Slave Data Port-0 DisCo properties.
		These properties are defined by MIPI DisCo Specification
		for the SoundWire. They define various properties of the
		Data port 0 are used by the bus to configure the Data Port 0.


What:		/sys/bus/soundwire/devices/sdw:.../dpN_src/max_word
		/sys/bus/soundwire/devices/sdw:.../dpN_src/min_word
		/sys/bus/soundwire/devices/sdw:.../dpN_src/words
		/sys/bus/soundwire/devices/sdw:.../dpN_src/type
		/sys/bus/soundwire/devices/sdw:.../dpN_src/max_grouping
		/sys/bus/soundwire/devices/sdw:.../dpN_src/simple_ch_prep_sm
		/sys/bus/soundwire/devices/sdw:.../dpN_src/ch_prep_timeout
		/sys/bus/soundwire/devices/sdw:.../dpN_src/imp_def_interrupts
		/sys/bus/soundwire/devices/sdw:.../dpN_src/min_ch
		/sys/bus/soundwire/devices/sdw:.../dpN_src/max_ch
		/sys/bus/soundwire/devices/sdw:.../dpN_src/channels
		/sys/bus/soundwire/devices/sdw:.../dpN_src/ch_combinations
		/sys/bus/soundwire/devices/sdw:.../dpN_src/max_async_buffer
		/sys/bus/soundwire/devices/sdw:.../dpN_src/block_pack_mode
		/sys/bus/soundwire/devices/sdw:.../dpN_src/port_encoding

		/sys/bus/soundwire/devices/sdw:.../dpN_sink/max_word
		/sys/bus/soundwire/devices/sdw:.../dpN_sink/min_word
		/sys/bus/soundwire/devices/sdw:.../dpN_sink/words
		/sys/bus/soundwire/devices/sdw:.../dpN_sink/type
		/sys/bus/soundwire/devices/sdw:.../dpN_sink/max_grouping
		/sys/bus/soundwire/devices/sdw:.../dpN_sink/simple_ch_prep_sm
		/sys/bus/soundwire/devices/sdw:.../dpN_sink/ch_prep_timeout
		/sys/bus/soundwire/devices/sdw:.../dpN_sink/imp_def_interrupts
		/sys/bus/soundwire/devices/sdw:.../dpN_sink/min_ch
		/sys/bus/soundwire/devices/sdw:.../dpN_sink/max_ch
		/sys/bus/soundwire/devices/sdw:.../dpN_sink/channels
		/sys/bus/soundwire/devices/sdw:.../dpN_sink/ch_combinations
		/sys/bus/soundwire/devices/sdw:.../dpN_sink/max_async_buffer
		/sys/bus/soundwire/devices/sdw:.../dpN_sink/block_pack_mode
		/sys/bus/soundwire/devices/sdw:.../dpN_sink/port_encoding

Date:		May 2020

Contact:	Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
		Bard Liao <yung-chuan.liao@linux.intel.com>
		Vinod Koul <vkoul@kernel.org>

Description:	SoundWire Slave Data Source/Sink Port-N DisCo properties.
		These properties are defined by MIPI DisCo Specification
		for SoundWire. They define various properties of the
		Source/Sink Data port N and are used by the bus to configure
		the Data Port N.