<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/drivers/soundwire, branch v6.14</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>Merge tag 'soundwire-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire</title>
<updated>2025-01-29T22:38:19+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2025-01-29T22:38:19+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=72deda0abee6e705ae71a93f69f55e33be5bca5c'/>
<id>72deda0abee6e705ae71a93f69f55e33be5bca5c</id>
<content type='text'>
Pull soundwire updates from Vinod Koul:

 - SoundWire multi lane support to use multiple lanes if supported

 - Stream handling of DEPREPARED state

 - AMD wake register programming for power off mode

* tag 'soundwire-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: amd: clear wake enable register for power off mode
  soundwire: generic_bandwidth_allocation: count the bandwidth of active streams only
  SoundWire: pass stream to compute_params()
  soundwire: generic_bandwidth_allocation: add lane in sdw_group_params
  soundwire: generic_bandwidth_allocation: select data lane
  soundwire: generic_bandwidth_allocation: check required freq accurately
  soundwire: generic_bandwidth_allocation: correct clk_freq check in sdw_select_row_col
  Soundwire: generic_bandwidth_allocation: set frame shape on fly
  Soundwire: stream: program BUSCLOCK_SCALE
  Soundwire: add sdw_slave_get_scale_index helper
  soundwire: generic_bandwidth_allocation: skip DEPREPARED streams
  soundwire: stream: set DEPREPARED state earlier
  soundwire: add lane_used_bandwidth in struct sdw_bus
  soundwire: mipi_disco: read lane mapping properties from ACPI
  soundwire: add lane field in sdw_port_runtime
  soundwire: bus: Move irq mapping cleanup into devres
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull soundwire updates from Vinod Koul:

 - SoundWire multi lane support to use multiple lanes if supported

 - Stream handling of DEPREPARED state

 - AMD wake register programming for power off mode

* tag 'soundwire-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: amd: clear wake enable register for power off mode
  soundwire: generic_bandwidth_allocation: count the bandwidth of active streams only
  SoundWire: pass stream to compute_params()
  soundwire: generic_bandwidth_allocation: add lane in sdw_group_params
  soundwire: generic_bandwidth_allocation: select data lane
  soundwire: generic_bandwidth_allocation: check required freq accurately
  soundwire: generic_bandwidth_allocation: correct clk_freq check in sdw_select_row_col
  Soundwire: generic_bandwidth_allocation: set frame shape on fly
  Soundwire: stream: program BUSCLOCK_SCALE
  Soundwire: add sdw_slave_get_scale_index helper
  soundwire: generic_bandwidth_allocation: skip DEPREPARED streams
  soundwire: stream: set DEPREPARED state earlier
  soundwire: add lane_used_bandwidth in struct sdw_bus
  soundwire: mipi_disco: read lane mapping properties from ACPI
  soundwire: add lane field in sdw_port_runtime
  soundwire: bus: Move irq mapping cleanup into devres
</pre>
</div>
</content>
</entry>
<entry>
<title>soundwire: amd: clear wake enable register for power off mode</title>
<updated>2024-12-23T06:31:13+00:00</updated>
<author>
<name>Vijendar Mukunda</name>
<email>Vijendar.Mukunda@amd.com</email>
</author>
<published>2024-12-03T09:21:44+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=74148bb59e2064b87eb1715d9eb109adccb75316'/>
<id>74148bb59e2064b87eb1715d9eb109adccb75316</id>
<content type='text'>
As per design for power off mode, clear the wake enable register during
resume sequence.

Signed-off-by: Vijendar Mukunda &lt;Vijendar.Mukunda@amd.com&gt;
Link: https://lore.kernel.org/r/20241203092144.4096986-1-Vijendar.Mukunda@amd.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
As per design for power off mode, clear the wake enable register during
resume sequence.

Signed-off-by: Vijendar Mukunda &lt;Vijendar.Mukunda@amd.com&gt;
Link: https://lore.kernel.org/r/20241203092144.4096986-1-Vijendar.Mukunda@amd.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>soundwire: generic_bandwidth_allocation: count the bandwidth of active streams only</title>
<updated>2024-12-23T06:30:34+00:00</updated>
<author>
<name>Bard Liao</name>
<email>yung-chuan.liao@linux.intel.com</email>
</author>
<published>2024-12-18T08:01:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=25befdf32aa407ac21d8b2aa1257ff666fb783b2'/>
<id>25befdf32aa407ac21d8b2aa1257ff666fb783b2</id>
<content type='text'>
sdw_compute_group_params() should only count payload bandwidth of the
active streams which is in the ENABLED and DISABLED state in the bus.
And add the payload bandwidth of the stream that calls
sdw_compute_group_params() in sdw_prepare_stream().

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Reviewed-by: Péter Ujfalusi &lt;peter.ujfalusi@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-15-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
sdw_compute_group_params() should only count payload bandwidth of the
active streams which is in the ENABLED and DISABLED state in the bus.
And add the payload bandwidth of the stream that calls
sdw_compute_group_params() in sdw_prepare_stream().

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Reviewed-by: Péter Ujfalusi &lt;peter.ujfalusi@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-15-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>SoundWire: pass stream to compute_params()</title>
<updated>2024-12-23T06:30:34+00:00</updated>
<author>
<name>Bard Liao</name>
<email>yung-chuan.liao@linux.intel.com</email>
</author>
<published>2024-12-18T08:01:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=168cdf9cdef232225f6b6c617fd347b4d1c4a7d7'/>
<id>168cdf9cdef232225f6b6c617fd347b4d1c4a7d7</id>
<content type='text'>
The stream parameter will be used in the follow up commit.
No function change.

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Reviewed-by: Péter Ujfalusi &lt;peter.ujfalusi@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-14-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The stream parameter will be used in the follow up commit.
No function change.

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Reviewed-by: Péter Ujfalusi &lt;peter.ujfalusi@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-14-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>soundwire: generic_bandwidth_allocation: add lane in sdw_group_params</title>
<updated>2024-12-23T06:30:34+00:00</updated>
<author>
<name>Bard Liao</name>
<email>yung-chuan.liao@linux.intel.com</email>
</author>
<published>2024-12-18T08:01:53+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=366fd59fb894e3d3605de9eeb856e92221ff9d48'/>
<id>366fd59fb894e3d3605de9eeb856e92221ff9d48</id>
<content type='text'>
All active streams with the same parameters are grouped together and the
params are stored in the sdw_group struct. We compute the required
bandwidth for each group. However, each lane has individual bandwidth.
Therefore, we should separate different lanes in different params groups.
Add lane variable to separate params groups.

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-13-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
All active streams with the same parameters are grouped together and the
params are stored in the sdw_group struct. We compute the required
bandwidth for each group. However, each lane has individual bandwidth.
Therefore, we should separate different lanes in different params groups.
Add lane variable to separate params groups.

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-13-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>soundwire: generic_bandwidth_allocation: select data lane</title>
<updated>2024-12-23T06:30:33+00:00</updated>
<author>
<name>Bard Liao</name>
<email>yung-chuan.liao@linux.intel.com</email>
</author>
<published>2024-12-18T08:01:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=7a30292ffa2a048271755fdf9364e11343315271'/>
<id>7a30292ffa2a048271755fdf9364e11343315271</id>
<content type='text'>
If a peripheral supports multi-lane, we can use data lane x to extend
the bandwidth. The patch suggests to select data lane x where x &gt; 0
when bandwidth is not enough on data lane 0.

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-12-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
If a peripheral supports multi-lane, we can use data lane x to extend
the bandwidth. The patch suggests to select data lane x where x &gt; 0
when bandwidth is not enough on data lane 0.

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-12-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>soundwire: generic_bandwidth_allocation: check required freq accurately</title>
<updated>2024-12-23T06:30:33+00:00</updated>
<author>
<name>Bard Liao</name>
<email>yung-chuan.liao@linux.intel.com</email>
</author>
<published>2024-12-18T08:01:51+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=4a7927d54d2c819029e70f6efa768085b90bfc34'/>
<id>4a7927d54d2c819029e70f6efa768085b90bfc34</id>
<content type='text'>
Currently, we check curr_dr_freq roughly by "if (curr_dr_freq &lt;=
bus-&gt;params.bandwidth)" in sdw_compute_bus_params() and check it
accurately in sdw_select_row_col(). It works if we only support one
freq. But, we need to check it accurately in sdw_select_row_col() to
give it a chance to use a higher freq or use multi-lane.

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-11-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Currently, we check curr_dr_freq roughly by "if (curr_dr_freq &lt;=
bus-&gt;params.bandwidth)" in sdw_compute_bus_params() and check it
accurately in sdw_select_row_col(). It works if we only support one
freq. But, we need to check it accurately in sdw_select_row_col() to
give it a chance to use a higher freq or use multi-lane.

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-11-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>soundwire: generic_bandwidth_allocation: correct clk_freq check in sdw_select_row_col</title>
<updated>2024-12-23T06:30:33+00:00</updated>
<author>
<name>Bard Liao</name>
<email>yung-chuan.liao@linux.intel.com</email>
</author>
<published>2024-12-18T08:01:50+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=cf44ae3d3282572480d760199cc8d6c7c61006cf'/>
<id>cf44ae3d3282572480d760199cc8d6c7c61006cf</id>
<content type='text'>
The bits in Column 0 of Rows 0 to 47 are for control word and cannot be
used for audio. In practice, entire Column 0 is skipped.

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-10-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The bits in Column 0 of Rows 0 to 47 are for control word and cannot be
used for audio. In practice, entire Column 0 is skipped.

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-10-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Soundwire: generic_bandwidth_allocation: set frame shape on fly</title>
<updated>2024-12-23T06:30:33+00:00</updated>
<author>
<name>Bard Liao</name>
<email>yung-chuan.liao@linux.intel.com</email>
</author>
<published>2024-12-18T08:01:49+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=3ddd303f4725b66d418998ca21cddbe9f31bb8aa'/>
<id>3ddd303f4725b66d418998ca21cddbe9f31bb8aa</id>
<content type='text'>
We need to recalculate frame shape when sdw bus clock is changed.
And need to make sure all Peripherals connected to the Manager support
dynamic clock change.

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-9-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
We need to recalculate frame shape when sdw bus clock is changed.
And need to make sure all Peripherals connected to the Manager support
dynamic clock change.

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-9-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Soundwire: stream: program BUSCLOCK_SCALE</title>
<updated>2024-12-23T06:30:33+00:00</updated>
<author>
<name>Bard Liao</name>
<email>yung-chuan.liao@linux.intel.com</email>
</author>
<published>2024-12-18T08:01:48+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=645291cfe5e52cce9571d73542476bec1d79ce26'/>
<id>645291cfe5e52cce9571d73542476bec1d79ce26</id>
<content type='text'>
We need to program bus clock scale to adjust the bus clock if current
bus clock doesn't fit the bandwidth.

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-8-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
We need to program bus clock scale to adjust the bus clock if current
bus clock doesn't fit the bandwidth.

Signed-off-by: Bard Liao &lt;yung-chuan.liao@linux.intel.com&gt;
Reviewed-by: Ranjani Sridharan &lt;ranjani.sridharan@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20241218080155.102405-8-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
