Commit graph

164 commits

Author SHA1 Message Date
Linus Torvalds
ab9b9b51ba soundwire updates for 7.3
- Bunch of Intel dmi quirks ghost list handling for Asus Zenbook Duo, Asus
    ROG Zephyrus Duo and Asus Expertbook. Intel Peripheral
    bra_block_alignment handling
  - Cadence library BRA_NumBytes[8] support
  - Qualcomm SCP address paging, bus mclk_freq support. Increase of data
    ports to 17 and driver improvements.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE+vs47OPLdNbVcHzyfBQHDyUjg0cFAmqMd8kACgkQfBQHDyUj
 g0dBjg/+Po6cyEfCuBH88IMxUBrcpjODyRdKDMNdM3MxBxYTJQiJmQPO60OwLOR/
 EGDPDUTqrzDt5HwmalgnyM+gEl7aLknwMAmJoK0gCw9BiO/1RfcXPEmLdoIJtrzG
 r2GnDuGzQBpxP//af7/b3N89eTCI3HKBLCHpYapyqFrhbniKHO9uDYsnBTzgz4NI
 GK6WJU5hqx7n92zvruQZIkHYijhYgkRru566eOBx8sDhO+w9lELHDTm7TmW8Qrwo
 XV1jMlPep9edClwYT9MwfEXe8ICwh0gShM3kWrhdi/i1OeEsT0VCa1NzNh14OOuV
 h4LlT0byLDGvx1zzCeDPEG5ZRqO8wdNwe7/1HeR5VD9Sn0pcEZKDWbzFVsiWTnqG
 /QKGjbylbenKZHfaL5EvnyiWhEXLv2t0qiiSWGbT+qEGa2Jk+IL6vps3Kr6dhNcg
 7KZHs5KAag3DTNAtF/W6n7/Ut9rfz6GI4f7acDSfsHz3gRenLqPQmZeAQLX1rtMR
 /A24EMNWkan2ffxMIGgBigQ6WiAVyuUDQFLr1yefhjIGN3+WTTtE/gGaAn+8xbdd
 o1CBUneoRQ3WtdRCljhBIAfM4HdS1i4GxIdvqrcDu1jmIYLsxs2HJIs24uZOC6Mk
 KgnoJbHsiriJ5CvoM5s6eKBI9jsx6XdT/KsLyHwLvVvSnzczIRM=
 =rjmH
 -----END PGP SIGNATURE-----

Merge tag 'soundwire-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

Pull soundwire updates from Vinod Koul:

 - Intel dmi quirks ghost list handling for Asus Zenbook Duo,
   Asus ROG Zephyrus Duo and Asus Expertbook. Intel Peripheral
   bra_block_alignment handling

 - Cadence library BRA_NumBytes[8] support

 - Qualcomm SCP address paging, bus mclk_freq support. Increase of
   data ports to 17 and driver improvements

* tag 'soundwire-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: dmi-quirks: Disable ghost Realtek on Asus ROG Zephyrus Duo
  soundwire: stream: validate slave port properties
  soundwire: honor clock_reg_supported in the clock scaling check
  soundwire: qcom: set the bus mclk_freq property
  soundwire: dmi-quirks: Disable ghost Realtek on Asus Zenbook Duo
  soundwire: intel_ace2x: handle the max_data_per_frame property
  soundwire: get mipi-sdw-bra-mode-max-data-per-frame property
  soundwire: intel: handle Peripheral bra_block_alignment
  soundwire: Add bra_block_alignment property support
  soundwire: cadence_master: add BRA_NumBytes[8] support
  soundwire: bus.h: repair kernel-doc comments
  soundwire: intel_auxdevice: Add cs42l44 to wake_capable_list
  soundwire: qcom: add SCP address paging support
  soundwire: dmi-quirks: add a global ghost list
  soundwire: dmi-quirks: Disable ghost Realtek on Asus Expertbook
  soundwire: qcom: Allocate sruntime array dynamically
  soundwire: qcom: Fix port exhaustion check in stream_alloc_ports
  dt-bindings: soundwire: qcom: Increase max data ports to 17
2026-08-24 12:16:16 -07:00
Jorijn van der Graaf
b3d2703946 soundwire: honor clock_reg_supported in the clock scaling check
sdw_slave_set_frequency() treats class_id and prop.clock_reg_supported
as equivalent evidence that a slave implements the bus-clock base and
scale registers, but the bank-switch reprogramming path checks class_id
alone, so a class-0 slave that declared the registers never gets the
next-bank scale written there. The registers are SoundWire 1.2, not
SDCA, so a device may well implement them without setting the class
field.

Extend the helper to honor clock_reg_supported, as discussed with
Pierre-Louis in the WCD9378 review. This also makes a link whose
peripherals all declare clock_reg_supported eligible for dynamic clock
scaling in the generic bandwidth allocation, which is what declaring
the registers means.

With the helper extended, sdw_slave_set_frequency()'s open-coded test
computes the same predicate; call the helper there instead, so future
quirks or updates land in one place.

Link: https://lore.kernel.org/all/5717102b-f7ab-42b2-8065-064d94dd2bee@linux.dev/
Link: https://lore.kernel.org/all/6991398d-4ae4-45ee-85d0-3b66462fec1d@linux.dev/
Assisted-by: Claude:claude-fable-5
Signed-off-by: Jorijn van der Graaf <jorijnvdgraaf@catcrafts.net>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Link: https://patch.msgid.link/20260728173542.61146-2-jorijnvdgraaf@catcrafts.net
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-08-06 14:05:54 +05:30
Uwe Kleine-König (The Capable Hub)
995832b2ce Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files)
Replace the #include of <linux/mod_devicetable.h> by the more specific
<linux/device-id/*.h> where applicable. For most cases the include
can be dropped completely, only a few drivers need one or two headers
added.

Acked-by: Danilo Krummrich <dakr@kernel.org>
Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/1a3f2007c5c5dcf555c09a4035ce3ae8ef1b6c49.1782808461.git.u.kleine-koenig@baylibre.com
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
2026-07-03 07:38:17 +02:00
Linus Torvalds
14923571e7 sound fixes for 7.2-rc1
A collection of small bug fixes accumulated over the last week.
 Most are device-specific fixes while there are a few core fixes as
 well.
 
 Here are the highlights:
 
 ALSA Core:
 - A fix for an uninitialised heap leak in ALSA sequencer core
 - A fix for error handling/resource leak in compress-offload API
 
 USB-audio:
 - A teardown-ordering fix in USB MIDI 2.0 to prevent use-after-free
 - Bounds and length checks for packet data in Native Instruments caiaq
   / Traktor Kontrol input parsers
 - Avoidance of expensive kobject path lookups in DualSense controller
   matches
 - Robustness/memory leak fixes for Qualcomm USB offload driver
 - Focusrite Control Protocol (FCP) NULL-pointer dereference fix and a
   new device quirk (ISA C8X)
 - Device-specific quirks for Yamaha CDS3000 and SC13A
 
 HD-Audio:
 - A bunch of quirks and mute/mic-mute LED fixups for various laptops
   (Acer, Clevo, Lenovo, HP)
 
 ASoC & SoundWire:
 - Avoid failing card registration if the device_link creation fails
 - A workaround for SoundWire randconfig build failures by making
   helper functions static inline
 - Corrected MCLK reference validation for CS530x codecs
 - Clean up of untested, problematic guard() macro replacements in
   Rockchip SAI driver
 - Fix for eDMA maxburst misalignment with channel count in Freescale
   ASRC
 - Miscellaneous hardware-specific fixes (qcom, rt5650, tlv320aic3x,
   tas2781/3)
 
 Others:
 - Bounds and length checks for packet data in Apple iSight
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAmo+mnEOHHRpd2FpQHN1
 c2UuZGUACgkQLtJE4w1nLE92VQ/+ItB+EBTpiba9YQYBrzUzq2R3BiNR/EZjU33G
 UMut1zQYQJ53eMmN8yMYc0GMbtk9dCFUAtRGPyQCNEHS6uFw51t3A4wlcXvIu1Sx
 kQqtyaDQ2jp98J72ms4WtN42o29MjcFmhBBcTb3Kw12T+OVTYYneccsGPsHqCXsZ
 RBjJFpDr0Xo1TfnOy9nt/UNUUIMJEtZ1gGlYBqzQgNoLeYH3+dRKBoX2qVAvhIcL
 FJnSGiDgyLpt6uucPAAeIzGHawQXW4ej7XY4S8cLscsB7mY7VEtPFIMx4bN1QYIO
 Ioj2P9KLG4/KYOV8oRQ6kzYTwtO7St9Kd/+xpU5Divjxf6TqRGlv/hlQCTBBZPLq
 RVUsEiE36UlSuipyruK34KubtVkbqUgUjBiPygFr6cLKb6fc6sjWrK5P8KUtN860
 8q1froUK43gwdVcdmLgrMbFCspE+KUp3xzSDh9tcVq6Ffw+otuuC0cJeVG4j+GOf
 xntsUqlAX6XSudTvTfa1pqvQmynBqvBy4wW9yrRfvEJ6eJqRlT17Sbs6AzpeLE4k
 dpeHlHwHtk5kfEGkYarJ3CEDw1GfHdLfQ6B6lBmCKq6DwnTZbq+lX5C3wB+OXVom
 xn5enCuaygVnXs6RF6DP3KlSvLoCJ09BEehkERxVg1uyVnGkioXXwNU8vdjkj2Qd
 srITNeo=
 =hJ5w
 -----END PGP SIGNATURE-----

Merge tag 'sound-fix-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small bug fixes accumulated over the last week.
  Most are device-specific fixes while there are a few core fixes as
  well.

  Here are the highlights:

  ALSA Core:
   - A fix for an uninitialised heap leak in ALSA sequencer core
   - A fix for error handling/resource leak in compress-offload API

  USB-audio:
   - A teardown-ordering fix in USB MIDI 2.0 to prevent use-after-free
   - Bounds and length checks for packet data in Native Instruments
     caiaq / Traktor Kontrol input parsers
   - Avoidance of expensive kobject path lookups in DualSense controller
     matches
   - Robustness/memory leak fixes for Qualcomm USB offload driver
   - Focusrite Control Protocol (FCP) NULL-pointer dereference fix and a
     new device quirk (ISA C8X)
   - Device-specific quirks for Yamaha CDS3000 and SC13A

  HD-Audio:
   - A bunch of quirks and mute/mic-mute LED fixups for various laptops
     (Acer, Clevo, Lenovo, HP)

  ASoC & SoundWire:
   - Avoid failing card registration if the device_link creation fails
   - A workaround for SoundWire randconfig build failures by making
     helper functions static inline
   - Corrected MCLK reference validation for CS530x codecs
   - Clean up of untested, problematic guard() macro replacements in
     Rockchip SAI driver
   - Fix for eDMA maxburst misalignment with channel count in Freescale
     ASRC
   - Miscellaneous hardware-specific fixes (qcom, rt5650, tlv320aic3x,
     tas2781/3)

  Others:
   - Bounds and length checks for packet data in Apple iSight"

* tag 'sound-fix-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (46 commits)
  ALSA: FCP: Fix NULL pointer dereference in interface lookup
  ALSA: hda/realtek: Update Acer Nitro ANV15-41 quirk to enable mute LED
  ASoC: fsl_asrc_dma: fix eDMA maxburst misalignment with channel count
  ASoC: codecs: pcm512x: only print info once on no sclk
  ASoC: tas2781: Update default register address to TAS2563
  ALSA: firewire: isight: bound the sample count to the packet payload
  ALSA: usb-audio: qcom: Free QMI handle
  ALSA: hda: Add Lenovo Legion 7i 16IAX7 17AA3874 quirk
  ALSA: usb-audio: avoid kobject path lookup in DualSense match
  ALSA: hda/realtek: Add quirk for Acer Nitro ANV15-41
  ASoC: soc-core: Don't fail if device_link could not be created
  ASoC: rockchip: rockchip_sai: #include <linux/platform_device.h> explicitly
  ALSA: seq: Fix uninitialised heap leak in snd_seq_event_dup()
  ASoC: rt5575: Use __le32 for SPI burst write address
  ASoC: tas2783: Update loaded firmware names to linux-firmware 20260519
  ASoC: SDCA: Validate written enum value in ge_put_enum_double()
  ASoC: realtek: Add back local call to sdw_show_ping_status()
  ASoC: ti: Add back local call to sdw_show_ping_status()
  ASoC: max98373: Add back local call to sdw_show_ping_status()
  ASoC: es9356: Add back local call to sdw_show_ping_status()
  ...
2026-06-27 12:15:23 -07:00
Linus Torvalds
240303e47f soundwire updates for 7.2
- Improvements in handling of soundwire groups
  - Additional checks flagged by various tools
  - Intel driver updates for ghost Realtek device handling in firmware and
    adding devices to wake lists
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE+vs47OPLdNbVcHzyfBQHDyUjg0cFAmo6rhwACgkQfBQHDyUj
 g0dYtBAAiEa7b58duDNxl2lf4YlZBqa/MvMfMWVMbW5ZtYd00aokv2QBIEVubb22
 a5l+7T7X5wHA1meS3mrsYktWInjJTe257b3qpwghfhbBkbLnbMs7esmZES03p9eg
 9lcmznhJnWSFddO8/CTch3EALGjmqN1WnCjwCaqjFXeQc36qxWILbEzShKtu88CE
 IU8MAvMyj4TWtklbZh6Y/VKKc+tcah2KgdHmKhv+z/ypiDUH5k5fHORQOsHo+Hxt
 rukFL4hQvdBA1B7//Q6u6Usvu7yKQQRsYQ6ybZi9ZXa7+GJ5BOznfM5fTVU5mQjS
 +xbPH/CMrdDH/HxdoKns72DQvC2n18tAGobS0UiadpTLSWkZ9PypW3VfYUb5Z+Ur
 iWt+plzYXceM8viq3KcmgV07gzTwLXopBWv0iVDP9fEBzVnpJbX/l5+yUwtfabq0
 IJMzSILlKoqwIJgP69rN3SScTm1G3biB6m+Y3GCzeUBbEEQs4JQB6mjkPVvpP7/I
 qp9pz5mQJwVBoInlKzYWlNmAEjWRqmQUoEYU0g35vI7bcWjtbtemFzuDFXkqZMp9
 wk784sXlXOvUoBudBuJFy2OG/tdELarmVj/Pk7U1XNPAzh39nf9tMfQnj9CzOxVR
 trzkPKoR7m65WbuIFt8nlC81JOSunDRBmXvBSzbXvVvdVqd9Vn0=
 =dF8L
 -----END PGP SIGNATURE-----

Merge tag 'soundwire-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

Pull soundwire updates from Vinod Koul:

 - Improvements in handling of soundwire groups

 - Additional checks flagged by various tools

 - Intel driver updates for ghost Realtek device handling in firmware
   and adding devices to wake lists

* tag 'soundwire-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: dmi-quirks: Disable ghost Realtek devices
  soundwire: only handle alert events when the peripheral is attached
  soundwire: intel_ace2x: release bpt_stream when close it
  soundwire: intel: Move suspend tracking from trigger to pm suspend
  soundwire: intel_auxdevice: Add es9356 to wake_capable_list
  soundwire: use krealloc_array to prevent integer overflow
  soundwire: increase group->max_size after allocation
  soundwire: fix bug in sdw_add_element_group_count found by syzkaller
  soundwire: don't program SDW_SCP_BUSCLOCK_SCALE on a unattached Peripheral
  soundwire: validate DT compatible before parsing it
  soundwire: intel_auxdevice: Add cs42l43b to wake_capable_list
  soundwire: stream: sdw_stream_remove_slave(): Check stream is valid
2026-06-23 13:58:38 -07:00
Charles Keepax
5714c8359f
soundwire: Move wait for initialisation helper to header
As SoundWire devices tend to enumerate on the bus after probe, drivers
frequently need to wait for the device to initialise from common driver
code. The common system is to split drivers into a core module and then
a module for each communication bus. These two facts tend to cause
Kconfig issues, the issue tends to be when SOUNDWIRE=m and DRIVER_I2C=y,
this usually selects DRIVER=y. The driver code then wants to call
sdw_slave_wait_for_init(), but this results in calling a module function
from built in code. A depends on SOUNDWIRE | !SOUNDWIRE could be added to
the end driver but this seems slightly off as it adds a lot of counter
intuitive depends.

A simpler solution is to make sdw_slave_wait_for_init() a static inline
function. As part of doing this add a check for the slave device being
NULL acknowledging that this is likely called from code that is shared
between control buses. It does require dropping the call to
sdw_show_ping_status() but this can be added back in end drivers that
used it originally.

Currently this is causing rand config issues on RT5682 and will soon
also cause similar problems on cs42l43.

Acked-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20260623101814.24044-2-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-06-23 12:52:30 +01:00
Charles Keepax
5677a551f4
soundwire: Always wait for initialisation of unattached devices
Currently in sdw_slave_wait_for_init() the waiting can be skipped
if unattach_request is not set. Doing so was added in [1] likely
because the core used to do a complete() on the completion so
waiting in the case an unattach hadn't actually happened would
block for the full timeout. However patch [2] updated the core to
use complete_all() which means that the wait_for_completion() will
now simply return if the device is already attached skipping the
completion doesn't add much.

Additionally, unattach_request is only set if the host initiates
a bus reset. However, the host doing a bus reset is not the only
reason a device may be unattached from the bus. Other options
could include the driver probing before the device enumerates, a
sync-loss, or the device itself powering down.

Removing the skip using unattached_request, doesn't cost much in
terms of efficiency and allows the sdw_slave_wait_for_init() helper
to be used outside of runtime resume.

[1] b2bd75f806 ("soundwire: sdw_slave: track unattach_request to handle all init sequences")
[2] c40d6b3249 ("soundwire: fix enumeration completion")

Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20260608102714.2503120-2-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-06-11 20:46:48 +01:00
Bard Liao
38cd651ebc soundwire: only handle alert events when the peripheral is attached
It doesn't make sense to handle an alert event when the peripheral is
not attached. The slave->status could be SDW_SLAVE_ATTACHED or
SDW_SLAVE_ALERT when it is attached on the bus.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Link: https://patch.msgid.link/20260520025720.1999367-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-05-29 12:02:05 +05:30
Charles Keepax
3492e8b494
soundwire: Add a helper function to wait for device initialisation
Add a new helper function to wait for the device to enumerate
and be initialised by the SoundWire core. Most of the SoundWire
drivers have very similar boiler plate code in their runtime
resume, and that boiler plate tends to access various internals
of the SoundWire structs which is a mild layering violation.

Adding a new core helper function greatly eases both of these
issues.

Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20260512103022.1154645-2-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-05-12 19:46:59 +09:00
Cole Leavitt
2c96956fe7 soundwire: bus: demote UNATTACHED state warnings to dev_dbg()
The dev_warn() messages in sdw_handle_slave_status() for UNATTACHED
transitions were added in commit d1b3285570 ("soundwire: bus: add
dev_warn() messages to track UNATTACHED devices") to debug attachment
failures with dynamic debug enabled.

These warnings fire during normal operation -- for example when a codec
driver triggers a hardware reset after firmware download, causing the
device to momentarily go UNATTACHED before re-attaching -- producing
misleading noise on every boot.

Demote the messages to dev_dbg() so they remain available via dynamic
debug for diagnosing real attachment failures without alarming users
during expected initialization sequences.

Fixes: d1b3285570 ("soundwire: bus: add dev_warn() messages to track UNATTACHED devices")
Signed-off-by: Cole Leavitt <cole@unwrap.rs>
Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20260218180210.9263-1-cole@unwrap.rs
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-03-09 08:03:20 +01:00
Bard Liao
fdfa1960ee soundwire: introduce BPT section
Currently we send a BRA message with a start address with continuous
registers in a BPT stream. However, a codec may need to write different
register sections shortly. Introduce a register section in struct
sdw_btp_msg which contain register start address, length, and buffer.
This commit uses only 1 section for each BPT message. And we need to add
up all BPT section length and check if it reach maximum BPT bytes.
No function changes.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Tested-by: Shuming Fan <shumingf@realtek.com>
Link: https://patch.msgid.link/20251021094355.132943-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-12-08 12:37:27 +05:30
Srinivas Kandagatla
2e07017b28
soundwire: bus: add sdw_slave_get_current_bank helper
There has been 2 instances of this helper in codec drivers,
it does not make sense to keep duplicating this part of code.

Lets add a helper sdw_get_current_bank() for codec drivers to use it.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://patch.msgid.link/20250909121954.225833-5-srinivas.kandagatla@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-09-18 22:24:27 +01:00
Charles Keepax
ccb7bb13c0 soundwire: Move handle_nested_irq outside of sdw_dev_lock
The sdw_dev_lock protects the SoundWire driver callbacks against
the probed flag, which is used to skip the callbacks if the
driver gets removed. For more information see commit bd29c00edd
("soundwire: revisit driver bind/unbind and callbacks").

However, this lock is a frequent source of mutex inversions.
Many audio operations eventually hit the hardware resulting in a
SoundWire callback, this means that typically the driver has the
locking order ALSA/ASoC locks -> sdw_dev_lock. Conversely, the IRQ
comes in directly from the SoundWire hardware, but then will often
want to access ALSA/ASoC, such as updating something in DAPM or
an ALSA control. This gives the other lock order sdw_dev_lock ->
ALSA/ASoC locks.

When the IRQ handling was initially added to SoundWire this was
through a callback mechanism. As such it required being covered by
the lock because the callbacks are part of the sdw_driver structure
and are thus present regardless of if the driver is currently
probed.

Since then a newer mechanism using the IRQ framework has been
added, which is currently covered by the same lock but this isn't
actually required. Handlers for the IRQ framework are registered in
probe and should by released during remove, thus the IRQ framework
will have already unbound the IRQ before the slave driver is
removed. Avoid the aforementioned mutex inversion by moving the
handle_nested_irq call outside of the sdw_dev_lock.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20250609143041.495049-3-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-06-09 21:36:07 +05:30
Linus Torvalds
a479ebb269 soundwire updates for 6.16
Couple of small core changes for
  - sdw_assign_device_num() logic simplification, using internal slave id
    for irqs and optimizing computing of port params in specific stream
    states
  - Intel driver updates for ACE3+ microphone privacy status reporting
    and enabling the status in HDA Intel driver
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE+vs47OPLdNbVcHzyfBQHDyUjg0cFAmhBMgcACgkQfBQHDyUj
 g0elyQ/8CqVJ4y6M1i2MgV+efGewspmvzt2WM9a82LA1wzSz668YxEaa50aplWwh
 c2jqqL702zOsbH5gX+H31tDM0wuder9zn5qxQML4JCUbw/Ec7cQSUOeVse+v9Rbg
 Fnb5MdxGXShSnOMjXA+H6JZ4Kt2TF759Q3wd4dmba0VBTIasVtyxW/qhFT997bJp
 SziLBT38dEG3WOBf8I+4qPsDg6NfJtUsn8H3oMJBD4ng8/uTD1BR5GZp3YsyH5X8
 2najQHVUFfGhWM8jLAniBZUBjeAMpGcKHjZxbKiizO3gGrCmetVao3PD1L0WYJP7
 macqODWQ+C3JGuk8aEvrgQ5YZpls/DF1BJDxABmq9u+8IYPFYTKzQdA+YKOmQPGB
 zli+F/GgBT5fCBIDb1UzZxGf5NC/mRN50eTPkd8ZnN2lA+OAsJs6Bnzh8c9BdMqY
 9haG0kY6sgDQVy1f3SSDI+JwAOEecVi6x6jhXKWdc++JyXEL57L3njHeXNA7kd+K
 esDQREVYXZ9Te17g1CL2/uQSWi/nMbPGQ0bPr0Y6CMzbMom1EguUE1FzPpIgct9K
 +3qPs9h6g2zUaUW0CtY1e0WGWUEG/XzBw8OHvTem4320yiSVSnhgF7QTtA4N+nIz
 cH870V3S8enqKU0V6HqDA5kwvfhh1SS8K1wnkRhFGDC3m/nhlRA=
 =izGg
 -----END PGP SIGNATURE-----

Merge tag 'soundwire-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

Pull soundwire updates from Vinod Koul:
 "A couple of small core changes and an Intel driver change:

   - sdw_assign_device_num() logic simplification, using internal slave
     id for irqs and optimizing computing of port params in specific
     stream states

   - Intel driver updates for ACE3+ microphone privacy status reporting
     and enabling the status in HDA Intel driver"

* tag 'soundwire-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: only compute port params in specific stream states
  ASoC: SOF: Intel: hda: Set the mic_privacy flag for soundwire with ACE3+
  soundwire: intel: Add awareness of ACE3+ microphone privacy
  soundwire: bus: Add internal slave ID and use for IRQs
  soundwire: bus: Simplify sdw_assign_device_num()
2025-06-05 08:07:24 -07:00
Charles Keepax
aab12022b0 soundwire: bus: Add internal slave ID and use for IRQs
Currently the SoundWire IRQ code uses the dev_num to create an IRQ
mapping for each slave. However, there is an issue there, the dev_num
is only allocated when the slave enumerates on the bus and enumeration
may happen before or after probe of the slave driver. In the case
enumeration happens after probe of the slave driver then the IRQ
mapping will use dev_num before it is set. This could cause multiple
slaves to use zero as their IRQ mapping.

It is very desirable to have the IRQ mapped before the slave probe
is called, so drivers can do resource allocation in probe as normal. To
solve these issues add an internal ID created for each slave when it is
probed and use that for mapping the IRQ.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Link: https://lore.kernel.org/r/20250429101808.348462-3-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-05-14 12:42:50 +01:00
Charles Keepax
5b1a2927c4 soundwire: bus: Simplify sdw_assign_device_num()
Simplify the code in sdw_assign_device_num(). Remove the new_device
flag which can be simply handled inline and do a bit less shuffling of
dev_num in and out of various variables. This patch should cause no
functional changes.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Link: https://lore.kernel.org/r/20250429101808.348462-2-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-05-14 12:42:50 +01:00
Charles Keepax
fd15594ba7 soundwire: bus: Fix race on the creation of the IRQ domain
The SoundWire IRQ domain needs to be created before any slaves are added
to the bus, such that the domain is always available when needed. Move
the call to sdw_irq_create() before the calls to sdw_acpi_find_slaves()
and sdw_of_find_slaves().

Fixes: 12a95123bf ("soundwire: bus: Allow SoundWire peripherals to register IRQ handlers")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20250409122239.1396489-1-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-04-10 11:58:43 +05:30
Pierre-Louis Bossart
9a756289ac soundwire: bus: add send_async/wait APIs for BPT protocol
Add definitions and helpers for the BPT/BRA protocol. Peripheral
drivers (aka ASoC codec drivers) can use this API to send bulk data
such as firmware or tables. The design intent is however NOT to
directly use this API but to rely on an intermediate regmap layer.

The API is only available when no other audio streams have been
allocated, and only one BTP/BRA stream is allowed per link. To avoid
the addition of yet another lock, the refcount tests are handled in
the stream master_runtime alloc/free routines where the bus_lock is
already held. Another benefit of this approach is that the same
bus_lock is used to handle runtime and port linked lists, which
reduces the potential for misaligned configurations.

In addition to exclusion with audio streams, BPT transfers have a lot
of overhead, specifically registers writes are needed to enable
transport in DP0. Most DMAs don't handle too well very small data sets
and they may have alignment limitations.

The size and alignment requirements are for now not handled by the
core but must be checked by platform-specific drivers.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Tested-by: shumingf@realtek.com
Link: https://lore.kernel.org/r/20250227140615.8147-8-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-03-10 12:31:18 +05:30
Krzysztof Kozlowski
836c8a2edb soundwire: Use str_enable_disable-like helpers
Replace ternary (condition ? "enable" : "disable") syntax with helpers
from string_choices.h because:
1. Simple function call with one argument is easier to read.  Ternary
   operator has three arguments and with wrapping might lead to quite
   long code.
2. Is slightly shorter thus also easier to read.
3. It brings uniformity in the text - same string.
4. Allows deduping by the linker, which results in a smaller binary
   file.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20250114200726.969501-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-02-13 21:54:55 +05:30
Bard Liao
645291cfe5 Soundwire: stream: program BUSCLOCK_SCALE
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 <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20241218080155.102405-8-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-12-23 12:00:33 +05:30
Bard Liao
8f4e3343ed Soundwire: add sdw_slave_get_scale_index helper
Currently, we only set peripheral frequency when the peripheral is
initialized. However, curr_dr_freq may change to get required bandwidth.
For example, curr_dr_freq may increase from 4.8MHz to 9.6MHz when the
4th stream is opened. Add a helper to get the scale index so that we can
get the scale index and program it.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20241218080155.102405-7-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-12-23 12:00:33 +05:30
Shen Lichuan
a54dc8c68a soundwire: Correct some typos in comments
Fixed some confusing spelling errors that were currently identified,
the details are as follows:

-in the code comments:
drivers/soundwire/bus.c:115: enumuration==> enumeration
drivers/soundwire/qcom.c:1176: wil ==> will
drivers/soundwire/sysfs_slave.c:218: highligh ==> highlight

Signed-off-by: Shen Lichuan <shenlichuan@vivo.com>
Link: https://lore.kernel.org/r/20240925081134.10248-1-shenlichuan@vivo.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-10-03 12:46:23 +05:30
Krzysztof Kozlowski
5a4c1f0207 soundwire: bus: simplify by using local slave->prop
The sdw_initialize_slave() function stores 'slave->prop' as local 'prop'
variable, so use it in all applicable places to make code a bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20240620091046.12426-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-06-21 15:26:58 +05:30
Pierre-Louis Bossart
7eca9c722e soundwire: bus: extend base clock checks to 96 MHz
Starting with MeteorLake, the input frequency to the SoundWire IP can
be 96MHz. The existing code is limited to 24MHz, change accordingly
and move branch after the 32MHz case to avoid issues.

While we're at it, reorder the frequencies by increasing order.

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>
Link: https://lore.kernel.org/r/20240326092030.1062802-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-04-05 17:21:03 +05:30
Pierre-Louis Bossart
b3a6809e62 soundwire: bus: don't clear SDCA_CASCADE bit
The SDCA_CASCADE bit is a SoundWire 1.2 addition. It is technically in
the DP0_INT register, but SDCA interrupts shall not be handled as part
of the DP0 interrupt processing.

The existing code has clear comments that we don't want to touch the
SDCA_CASCADE bit, but it's actually cleared due to faulty logic dating
from SoundWire 1.0

In theory clearing this bit should have no effect: a cascade bit
remains set while all ORed status are set, but better safe than sorry.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Chao Song <chao.song@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20240326060021.973501-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-03-28 23:44:04 +05:30
Pierre-Louis Bossart
6543ac13c6 soundwire: bus: introduce controller_id
The existing SoundWire support misses a clear Controller/Manager
hiearchical definition to deal with all variants across SOC vendors.

a) Intel platforms have one controller with 4 or more Managers.
b) AMD platforms have two controllers with one Manager each, but due
to BIOS issues use two different link_id values within the scope of a
single controller.
c) QCOM platforms have one or more controller with one Manager each.

This patch adds a 'controller_id' which can be set by higher
levels. If assigned to -1, the controller_id will be set to the
system-unique IDA-assigned bus->id.

The main change is that the bus->id is no longer used for any device
name, which makes the definition completely predictable and not
dependent on any enumeration order. The bus->id is only used to insert
the Managers in the stream rt context.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/stable/20231017160933.12624-2-pierre-louis.bossart%40linux.intel.com
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20231017160933.12624-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-11-24 12:24:37 +05:30
Linus Torvalds
be47c8e326 soundwire updates for 6.7
- Core has now improved handling of errors for clock stop
  - Support for qcom v2.0.0 status registers and command ignored interrupt
    and more logging for failures
  - DMI quirk for HP Omen machine
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE+vs47OPLdNbVcHzyfBQHDyUjg0cFAmVE6dkACgkQfBQHDyUj
 g0dbnxAAmrvTzuc1hnSz5gjmYjzNbqwdLOCWAfw12V7279ZxFT2XDSZ4KnFinxG8
 QG0mCHCICgW6dt0+Sq3pMRqS1BCMvpz84/3nrA7k7oazDBBPQbcS2MEMJxPgVwh5
 cFBODEca3Xd0Fvu1sXhfabhYP3mfneNG+uDF5IHzN371Bcd1Xcfzpq3mjoU1w+xQ
 m4TH2JnTj+m7WgJfzU9xC10dNpj6sIa/km+1HcTcdT4E/N10BcYsRaQ5sVFPvsYp
 JONf5OEViZOTLV+BGm8v4MjXQgWYgF/XGIsx62YcHsA+LDA56liprafJumuVvTdL
 aE6YrgGnXkf6dSeZ3qeVwGNhhFhszZq1otlJBSlaJTnciESprz/SSc0Z0PIaOMPq
 q/i8UdGoe3YQ2dz2Ee01OwidaE+MliNEHM05iXaWb92zox80acfq2PyLWETuAU/z
 XSZy/JVsjQ5eOUZyjiidgiS7wxZseyYXdCJpxcCDPdZY56X3qKtoinQsjp7Q/X8N
 f39IiP5z16fUAaH3nZXjnfyt1m/fy0AvTH2VL73iS/Fbt1VKszBgiD5fD9EJG2IL
 ZmACTy4MX9m9OKhVnawJKndMGdFNrwmGgxxnvLVK6yDk5LXSEkYw0y5kZo1MVaDl
 MhwBzjhJUERAGRtSXNBwkrgFjEsmcCk5SiKgZYybXYmSttBgc78=
 =28ZO
 -----END PGP SIGNATURE-----

Merge tag 'soundwire-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

Pull soundwire updates from Vinod Koul:

 - Core now has improved handling of errors for clock stop

 - Support for qcom v2.0.0 status registers and command ignored
   interrupt and more logging for failures

 - DMI quirk for HP Omen machine

* tag 'soundwire-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: dmi-quirks: update HP Omen match
  soundwire: bus: improve error handling for clock stop prepare/deprepare
  soundwire: qcom: Log clk_get("iface") failures
  soundwire: qcom: handle command ignored interrupt
  soundwire: qcom: use newer link status tregister on v2.0.0
2023-11-03 19:10:41 -10:00
Pierre-Louis Bossart
ff435da4cc soundwire: bus: improve error handling for clock stop prepare/deprepare
The same logic is used for clock stop prepare and deprepare, and
having different logs for the two steps helps identify problems.

In addition, when the "NotFinished" bit remains set, the error
handling is not quite right:

a) for the clock stop prepare, the error is handled at the caller
level, and the error is ignored: there's no good reason to prevent the
pm_runtime suspend from happening. Throwing an error that is later
ignored is confusing.

b) for the clock stop deprepare, the error is ignored in bus.c and a
dev_warn() log shown. Throwing an error is also alarming users for no
good reason.

For both cases, demoting the error to dev_dbg() makes more sense.

Link: https://github.com/thesofproject/linux/issues/4619
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20231013010812.114216-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-10-16 16:47:36 +05:30
Charles Keepax
3b6c4a11bf soundwire: bus: Make IRQ handling conditionally built
SoundWire has provisions for a simple callback for the IRQ handling so
has no hard dependency on IRQ_DOMAIN, but the recent addition of IRQ
handling was causing builds without IRQ_DOMAIN to fail. Resolve this by
moving the IRQ handling into its own file and only add it to the build
when IRQ_DOMAIN is included in the kernel.

Fixes: 12a95123bf ("soundwire: bus: Allow SoundWire peripherals to register IRQ handlers")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202309150522.MoKeF4jx-lkp@intel.com/
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230920160401.854052-1-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-09-21 11:31:33 +02:00
Linus Torvalds
6e32dfcccf soundwire updates for 6.6
- Core support for soundwire device number allocation
  - intel driver updates for adding hw_params for DAI ops, hybrid number
    allocation and power managemnt callback updates
  - DT header include changes for subsystem
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE+vs47OPLdNbVcHzyfBQHDyUjg0cFAmT0vxoACgkQfBQHDyUj
 g0f/Lg/8CHWdjQzNJVOoJIqY+mFjIKT+QtyRZSpdaQIFYcQF4xcd6v6/rEJzLjgg
 bMlJ+Icwe19sIq2Yhq69kcecCD5/Arx3tqo2WAwcUF5NykFVQnO/FO+qZYdNM8A9
 ohI8+1ZM1qyrC0YocpiUUINOek0MVeLf4wBFFiJMZRVNNMpCH7LrOcs+vH8bLKYn
 i03dXc/sbM0QyBnfsjnu02wbaq84pFOlbkLJYn21cFoiqryMAXjNXRIpuJ35T5BX
 iXgHHhVX4vWgOszLM83BhKQnSCemNb4y24ablm9gtVBMpNg2yAyHL0qpAk9nFhGn
 vVZIup8OVpfziW6O48BBA7HWMBA0fRL8Iz80oH8ZoAAfRl32QGKal37jUaOL7ycO
 +kMNbJq85v0NDRnUiHeUAY/X5gnnRZpbCLzWxpp3ohx8W0mQctQRFoArhITV7O0Q
 38RNfe89Fq6f9poz56tj+d8d/zLx0VzLqPjiuP89HeeOboIjkGtNRfU1z/V9Wh2G
 8Fr77rwSAo+wghlFpHE8S9gkyLvMiVeEdNEHskQod7ZvAD2YrfHPLENOW7L0rpGw
 Eurl+bby1hqgsvA6gQqUQt2xeumeLYelttZYcmMGhPLo7RTYbTckwh6CO2iomNL/
 noCtG/mNbR78pOKIab4VWoLcOzFfJ3qCpdOLzYBQYphxJo2oj50=
 =4w8N
 -----END PGP SIGNATURE-----

Merge tag 'soundwire-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

Pull soundwire updates from Vinod Koul:
 "Device numbering and intel driver changes are main features:

   - Core support for soundwire device number allocation

   - intel driver updates for adding hw_params for DAI ops, hybrid
     number allocation and power managemnt callback updates

   - DT header include changes for subsystem"

* tag 'soundwire-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: intel_ace2x: add DAI hw_params/prepare/hw_free callbacks
  soundwire: intel_auxdevice: add hybrid IDA-based device_number allocation
  soundwire: bus: add callbacks for device_number allocation
  soundwire: extend parameters of new_peripheral_assigned() callback
  soundWire: intel_auxdevice: resume 'sdw-master' on startup and system resume
  soundwire: intel_auxdevice: enable pm_runtime earlier on startup
  soundwire: Explicitly include correct DT includes
2023-09-03 10:20:57 -07:00
Mark Brown
038e0da7ba Immutable branch between MFD, Pinctrl and soundwire due for the v6.6 merge window
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEdrbJNaO+IJqU8IdIUa+KL4f8d2EFAmTfkKAACgkQUa+KL4f8
 d2FwzxAArqA6/pebr+19TNvv6hFuUxpbR57jr0XM4YzPNvBJs/iEk1wfdGTkOdFG
 NSWVGDIE4aY62mwehq0AEfYQVrTzKcAuMJZgOeg0lzReBYMhn6WuyCc192L7tgRA
 H3bm2oQcSVXiNGXvKoTr9fDckBf5Ta9OcoVmf48YFQXvwv+vuO/kS77JuVkLZxwH
 yycmLxD7PJlvikj8ITsg8pzj/xLhCpHziLsyMjQpgvr7hRPG+f5W0Dq9vNONI5IL
 YU810I2Dp+bU5YGAElGTrSwHnI2FrCUlrcR88ukGPN9rBn84TcmypWsetMR83juo
 zcn6AfUp6WuhaQxs06tTzsNc9cQpKjtjYojTZ1OYYsC7eOhlF3ifQLEiqVJbfY0W
 8BN1e3QDf59ZwXAUJJKrV37yHc9/uuGVerc7dzkng0f2OHosNWzLNyy7LiOb80dD
 Hp/yGxXXyiASGjswSaxqbu67TuEPWKuoceW0wRS9/ExZx+cPvEzdTzdCWYej7cDH
 UmJup/J053htC1k/vos+0SRezqeuXvHXDRuwP9Lnhdct9eeDiGFn920S9d2DVjgR
 PImk+O9dTnOVehNY7+I9tqBK9dM3AolH/jbEQQ6VkIfm2clewBy+1M0SohWIBW/E
 4iQbtPkVXwGHI9Lp+6pP4exhA58FQCDL4KoUkchWsokF9zTM/eM=
 =Sb7O
 -----END PGP SIGNATURE-----
gpgsig -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmTfnlEACgkQJNaLcl1U
 h9BD2Af/au+JWxg2p6BOe2KLaqsVbWsijBMWaoAz3XRsiTow5MEfo0I4jSsw9wQw
 YYxJ++VFlydheP+VpPC7At6dqz5BGbk/5uG9Vh4AAwgnVL/OCNJqT54jJ5RV4lh6
 zWh4xXa8enKfKGuWRbCbCpYIOEvzwFaHYe4V1axbiAJYunTaRcBvEyJXeaSQGKXr
 uI7kTef/h1j+HWgGVkm8ODTf/YfXpuH9myysDBYcIlb4I6Daphtk70M1IdbyepXo
 khTV9r3Weof2tUajRYUuiegaEW3UFU/tEP87/UVKZ5k6eef7O77evqdWRWcYhMfw
 E8oCacS26cGGGL7ynj+XxmV5po7dJw==
 =xI4n
 -----END PGP SIGNATURE-----

mfd: Immutable branch between MFD, Pinctrl and soundwire due for the v6.6 merge window

Merge tag 'ib-mfd-pinctrl-soundwire-v6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into tmp

Immutable branch between MFD, Pinctrl and soundwire due for the v6.6 merge window
2023-08-18 17:37:08 +01:00
Lucas Tanure
12a95123bf soundwire: bus: Allow SoundWire peripherals to register IRQ handlers
Currently the in-band alerts for SoundWire peripherals can only
be communicated to the driver through the interrupt_callback
function. This however is slightly inconvenient for devices that wish
to share IRQ handling code between SoundWire and I2C/SPI, the later
would normally register an IRQ handler with the IRQ subsystem. However
there is no reason the SoundWire in-band IRQs can not also be
communicated as an actual IRQ to the driver.

Add support for SoundWire peripherals to register a normal IRQ
handler to receive SoundWire in-band alerts, allowing code to be
shared across control buses. Note that we allow users to use both the
interrupt_callback and the IRQ handler, this is useful for devices
which must clear additional chip specific SoundWire registers that are
not a part of the normal IRQ flow, or the SoundWire specification.

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230804104602.395892-2-ckeepax@opensource.cirrus.com
Signed-off-by: Lee Jones <lee@kernel.org>
2023-08-17 12:06:11 +01:00
Pierre-Louis Bossart
39d80b0e5f soundwire: bus: add callbacks for device_number allocation
Rather than add logic in the core for vendor-specific usages, add
callbacks for vendor-specific device_number allocation and release.

This patch only moves the existing IDA-based allocator used only by
Intel to the intel_auxdevice.c file and does not change the
functionality. Follow-up patches will extend the behavior by modifying
the Intel callbacks.

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>
Link: https://lore.kernel.org/r/20230731091333.3593132-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-08-11 07:59:25 +01:00
Pierre-Louis Bossart
23afc82fb2 soundwire: extend parameters of new_peripheral_assigned() callback
The parameters are only the bus and the device number, manager ops may
need additional details on the type of peripheral connected, such as
whether it is wake-capable or not.

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>
Link: https://lore.kernel.org/r/20230731091333.3593132-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-08-11 07:59:25 +01:00
Johan Hovold
c40d6b3249 soundwire: fix enumeration completion
The soundwire subsystem uses two completion structures that allow
drivers to wait for soundwire device to become enumerated on the bus and
initialised by their drivers, respectively.

The code implementing the signalling is currently broken as it does not
signal all current and future waiters and also uses the wrong
reinitialisation function, which can potentially lead to memory
corruption if there are still waiters on the queue.

Not signalling future waiters specifically breaks sound card probe
deferrals as codec drivers can not tell that the soundwire device is
already attached when being reprobed. Some codec runtime PM
implementations suffer from similar problems as waiting for enumeration
during resume can also timeout despite the device already having been
enumerated.

Fixes: fb9469e54f ("soundwire: bus: fix race condition with enumeration_complete signaling")
Fixes: a90def0681 ("soundwire: bus: fix race condition with initialization_complete signaling")
Cc: stable@vger.kernel.org      # 5.7
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Rander Wang <rander.wang@linux.intel.com>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230705123018.30903-2-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-07-12 22:30:15 +05:30
Richard Fitzgerald
256a9978eb soundwire: bus: Prevent lockdep asserts when stream has multiple buses
Give the bus_lock and msg_lock of each bus a different unique key
so that it is possible to acquire the locks of multiple buses
without lockdep asserting a possible deadlock.

Using mutex_init() to initialize a mutex gives all those mutexes
the same lock class. Lockdep checking treats it as an error to
attempt to take a mutex while already holding a mutex of the same
class. This causes a lockdep assert when sdw_acquire_bus_lock()
attempts to lock multiple buses, and when do_bank_switch() takes
multiple msg_lock.

[  138.697350] WARNING: possible recursive locking detected
[  138.697366] 6.3.0-test #1 Tainted: G            E
[  138.697380] --------------------------------------------
[  138.697394] play/903 is trying to acquire lock:
[  138.697409] ffff99b8c41aa8c8 (&bus->bus_lock){+.+.}-{3:3}, at:
sdw_prepare_stream+0x52/0x2e0
[  138.697443]
               but task is already holding lock:
[  138.697468] ffff99b8c41af8c8 (&bus->bus_lock){+.+.}-{3:3}, at:
sdw_prepare_stream+0x52/0x2e0
[  138.697493]
               other info that might help us debug this:
[  138.697521]  Possible unsafe locking scenario:

[  138.697540]        CPU0
[  138.697550]        ----
[  138.697559]   lock(&bus->bus_lock);
[  138.697570]   lock(&bus->bus_lock);
[  138.697581]
                *** DEADLOCK ***

Giving each mutex a unique key allows multiple to be held
without triggering a lockdep assert. But note that it does not
allow them to be taken in one order then a different order.
If two mutexes are taken in the order A, B then they must
always be taken in that order otherwise they could deadlock.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230615141208.679011-1-rf@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-06-21 16:31:44 +05:30
Pierre-Louis Bossart
6bac0d8d1b soundwire: bus: add new manager callback to deal with peripheral enumeration
When a peripheral reports as ATTACHED, the manager may need to follow
a programming sequence, e.g. to assign DMA resources and/or assign a
command queue for that peripheral.

This patch adds an optional callback, which will be invoked every time
the peripheral attaches. This might be overkill in some scenarios, and
one could argue that this should be invoked only on the first
attachment. The bus does not however track this first attachment with
any existing state-mirroring variable, and using dev_num_sticky would
not work across suspend-resume cycles.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20230515071042.2038-20-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-05-27 16:06:46 +05:30
Charles Keepax
9420c9719f soundwire: bus: Don't filter slave alerts
It makes sense to have only a single point responsible for ensuring
that all currently pending IRQs are handled. The current code in
sdw_handle_slave_alerts confusingly splits this process in two.  This
code will loop until the asserted IRQs are cleared but it will only
handle IRQs that were already asserted when it was called. This
means the caller must also loop (either manually, or through its IRQ
mechanism) until the IRQs are all handled. It makes sense to either do
all the looping in sdw_handle_slave_alerts or do no looping there and
let the host controller repeatedly call it until things are handled.

There are realistically two sensible host controllers, those that
will generate an IRQ when the alert status changes and those
that will generate an IRQ continuously whilst the alert status
is high. The current code will work fine for the second of those
systems but not the first with out additional looping in the host
controller.  Removing the code that filters out new IRQs whilst
the handler is running enables both types of host controller to be
supported and simplifies the code. The code will still only loop up to
SDW_READ_INTR_CLEAR_RETRY times, so it shouldn't be possible for it to
get completely stuck handling IRQs forever, and if you are generating
IRQs faster than you can handle them you likely have bigger problems
anyway.

This fixes an issue on the Cadence SoundWire IP, which only generates
IRQs on an alert status change, where an alert which arrives whilst
another alert is being handled will never be handled and will block
all future alerts from being handled.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230418140650.297279-1-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-05-08 13:03:20 +05:30
Richard Fitzgerald
e953796251 soundwire: bus: Fix unbalanced pm_runtime_put() causing usage count underflow
This reverts commit
443a98e649 ("soundwire: bus: use pm_runtime_resume_and_get()")

Change calls to pm_runtime_resume_and_get() back to pm_runtime_get_sync().
This fixes a usage count underrun caused by doing a pm_runtime_put() even
though pm_runtime_resume_and_get() returned an error.

The three affected functions ignore -EACCES error from trying to get
pm_runtime, and carry on, including a put at the end of the function.
But pm_runtime_resume_and_get() does not increment the usage count if it
returns an error. So in the -EACCES case you must not call
pm_runtime_put().

The documentation for pm_runtime_get_sync() says:
 "Consider using pm_runtime_resume_and_get() ...  as this is likely to
 result in cleaner code."

In this case I don't think it results in cleaner code because the
pm_runtime_put() at the end of the function would have to be conditional on
the return value from pm_runtime_resume_and_get() at the top of the
function.

pm_runtime_get_sync() doesn't have this problem because it always
increments the count, so always needs a put. The code can just flow through
and do the pm_runtime_put() unconditionally.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230406134640.8582-1-rf@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-04-12 15:34:40 +05:30
Charles Keepax
d005ea713d soundwire: bus: Update sdw_nread/nwrite_no_pm to handle page boundaries
Currently issuing a sdw_nread/nwrite_no_pm across a page boundary
will silently fail to write correctly as nothing updates the page
registers, meaning the same page of the chip will get rewritten
with each successive page of data.

As the sdw_msg structure contains page information it seems
reasonable that a single sdw_msg should always be within one
page. It is also mostly simpler to handle the paging at the
bus level rather than each master having to handle it in their
xfer_msg callback.

As such add handling to the bus code to split up a transfer into
multiple sdw_msg's when they go across page boundaries.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230322164948.566962-3-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-04-12 15:30:37 +05:30
Charles Keepax
d94e1e01c7 soundwire: bus: Update kernel doc for no_pm functions
The kernel doc should really have been updated when the no_pm versions
of the sdw_write/read functions were exported in commits:

commit 167790abb9 ("soundwire: export sdw_write/read_no_pm functions")
commit 62dc9f3f2f ("soundwire: bus: export sdw_nwrite_no_pm and
                      sdw_nread_no_pm functions")

Add the missing kernel doc.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230322164948.566962-2-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-04-12 15:30:37 +05:30
Charles Keepax
ff9608c32e soundwire: bus: Remove now outdated comments on no_pm IO
Things have moved more towards end drivers using the no_pm versions of
the IO functions. See commits:

commit 167790abb9 ("soundwire: export sdw_write/read_no_pm functions")
commit 62dc9f3f2f ("soundwire: bus: export sdw_nwrite_no_pm and
                      sdw_nread_no_pm functions")

As such this comment is now misleading, so remove it.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230322164948.566962-1-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-04-12 15:30:37 +05:30
Pierre-Louis Bossart
66f95de7c1 soundwire: cadence: further simplify low-level xfer_msg_defer() callback
The message pointer is already stored in the bus->defer structure, not
need to pass it as an argument.

Suggested-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20230119073211.85979-5-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-01-31 20:01:52 +05:30
Pierre-Louis Bossart
dd0b9619a2 soundwire: cadence: use directly bus sdw_defer structure
Copying the bus sdw_defer structure into the Cadence internals leads
to using stale pointers and kernel oopses on errors. It's just simpler
and safer to use the bus sdw_defer structure directly.

Link: https://github.com/thesofproject/linux/issues/4056
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20230119073211.85979-4-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-01-31 19:59:21 +05:30
Pierre-Louis Bossart
45cb70f999 soundwire: bus: remove sdw_defer argument in sdw_transfer_defer()
There's no point in passing an argument that is a pointer to a bus
member. We can directly get the member and do an indirection when
needed.

This is a first step before simplifying the hardware-specific
callbacks further.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20230119073211.85979-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-01-31 19:57:17 +05:30
Richard Fitzgerald
c8a0d6b256 soundwire: bus: Don't zero page registers after every transaction
Zeroing the page registers at the end of every paged transaction is just
overhead (40% overhead on a 1-register access, 25% on a 4-register
transaction). According to the spec a peripheral that supports paging
should only use the values in the page registers if the address is paged
(address bit 15 set). The core SoundWire code always writes the page
registers at the start of a paged transaction so there will never be a
transaction that uses the stale values from a previous paged transaction.

For peripherals that need large amounts of data to be transferred, for
example firmware or filter coefficients, the overhead of page register
zeroing can become quite significant.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230123164949.245898-2-rf@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-01-31 17:36:13 +05:30
Charles Keepax
545c365185 soundwire: stream: Move remaining register accesses over to no_pm
There is no need to play with the runtime reference everytime a register
is accessed. All the remaining "pm" style register accesses trace back
to 4 functions:

sdw_prepare_stream
sdw_deprepare_stream
sdw_enable_stream
sdw_disable_stream

Any sensible implementation will need to hold a runtime reference
across all those functions, it makes no sense to be allowing the
device/bus to suspend whilst streams are being prepared/enabled. And
certainly in the case of the all existing users, they all call these
functions from hw_params/prepare/trigger/hw_free callbacks in ALSA,
which will have already runtime resumed all the audio devices
associated during the open callback.

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221125142028.1118618-5-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-01-09 21:46:27 +05:30
Simon Trimmer
62dc9f3f2f soundwire: bus: export sdw_nwrite_no_pm and sdw_nread_no_pm functions
The commit 167790abb9 ("soundwire: export sdw_write/read_no_pm
functions") exposed the single byte no_pm versions of the IO functions
that can be used without touching PM, export the multi byte no_pm
versions for the same reason.

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221125142028.1118618-2-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-01-09 21:46:27 +05:30
Pierre-Louis Bossart
ffa1726589 soundwire: enable optional clock registers for SoundWire 1.2 devices
The bus supports the mandatory clock registers for SDCA devices, these
registers can also be optionally supported by SoundWire 1.2 devices
that don't follow the SDCA class specification.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221118025807.534863-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-01-09 21:37:40 +05:30
Pierre-Louis Bossart
be505ba8fe ASoC/soundwire: remove is_sdca boolean property
The Device_ID registers already tell us if a device supports the SDCA
specification or not, in hindsight we never needed a property when the
information is reported by both hardware and ACPI.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221118025807.534863-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-01-09 21:37:40 +05:30