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path: root/sound/pci/hda/cs35l56_hda.c
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2024-08-21ALSA: hda: cs35l56: Don't use the device index as a calibration indexSimon Trimmer
The HDA driver cannot assume that the order that the devices are specified in the cirrus,dev-index matches the order of calibration entries. Only a calibration entry with a matching silicon id will be used. Fixes: cfa43aaa7948 ("ALSA: hda: cs35l56: Apply amp calibration from EFI data") Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com> Link: https://patch.msgid.link/20240821124711.44325-1-simont@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-08-13ALSA: hda: cs35l56: Remove redundant call to hda_cs_dsp_control_remove()Richard Fitzgerald
The driver doesn't create any ALSA controls for firmware controls, so it shouldn't be calling hda_cs_dsp_control_remove(). commit 34e1b1bb7324 ("ALSA: hda: cs35l56: Stop creating ALSA controls for firmware coefficients") removed the call to hda_cs_dsp_add_controls() but didn't remove the call for destroying those controls. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Fixes: 34e1b1bb7324 ("ALSA: hda: cs35l56: Stop creating ALSA controls for firmware coefficients") Link: https://patch.msgid.link/20240813110750.2814-1-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-08-05ALSA: hda: cs35l56: Stop creating ALSA controls for firmware coefficientsSimon Trimmer
A number of laptops have gone to market with old firmware versions that export controls that have since been hidden, but we can't just install a newer firmware because the firmware for each product is customized and qualified by the OEM. The issue is that alsactl save and restore has no idea what controls are good to persist which can lead to misconfiguration. There is no reason that the UCM or user should need to interact with any of the ALSA controls for the firmware coefficients so they can be removed entirely, this also simplifies the driver. Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com> Link: https://patch.msgid.link/20240801143139.34549-1-simont@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-06-18ALSA: hda: cs35l56: Perform firmware download in the backgroundSimon Trimmer
It is possible that during system boot when there multiple devices attempting simultaneous initialization on a slow control bus the download of firmware and tuning data may take a user perceivable amount of time (a slow I2C bus with 4 amps this work could take over 2 seconds). Adopt a pattern used in the ASoC driver and perform this activity in a background thread so that interactive performance is not impaired. The system_long_wq is a parallel workqueue and driver instances will perform their firmware downloads in parallel to make best use of available bus bandwidth. Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com> Link: https://lore.kernel.org/20240618130011.62860-1-simont@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-06-18ALSA: hda: hda_component: Move codec field into the parentSimon Trimmer
There is one codec shared across all of the bound HDA components and a copy is usually stashed in the amp driver so it doesn't need to be in every hda_component. Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/20240617154105.108635-4-simont@opensource.cirrus.com
2024-06-18ALSA: hda: hda_component: Change codecs to use component parent structureSimon Trimmer
Change the hda_component binding APIs to pass the hds_component_parent as the parameter so the array of components can be abstracted. Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/20240617154105.108635-3-simont@opensource.cirrus.com
2024-06-14ALSA: hda: cs35l56: Component should be unbound before deconstructionSimon Trimmer
The interface associated with the hda_component should be deactivated before the driver is deconstructed during removal. Fixes: 73cfbfa9caea ("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier") Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240613133713.75550-2-simont@opensource.cirrus.com
2024-05-31ALSA: hda: cs35l56: Fix lifecycle of codec pointerSimon Trimmer
The codec should be cleared when the amp driver is unbound and when resuming it should be tested to prevent loading firmware into the device and ALSA in a partially configured system state. Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com> Link: https://lore.kernel.org/r/20240531112716.25323-1-simont@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-05-08ALSA: hda: cs35l56: Fix lifetime of cs_dsp instanceRichard Fitzgerald
The cs_dsp instance is initialized in the driver probe() so it should be freed in the driver remove(). Also fix a missing call to cs_dsp_remove() in the error path of cs35l56_hda_common_probe(). The call to cs_dsp_remove() was being done in the component unbind callback cs35l56_hda_unbind(). This meant that if the driver was unbound and then re-bound it would be using an uninitialized cs_dsp instance. It is best to initialize the cs_dsp instance in probe() so that it can return an error if it fails. The component binding API doesn't have any error handling so there's no way to handle a failure if cs_dsp was initialized in the bind. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Fixes: 73cfbfa9caea ("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier") Link: https://lore.kernel.org/r/20240508100811.49514-1-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-04-08ALSA: hda: cs35l56: Exit cache-only after cs35l56_wait_for_firmware_boot()Richard Fitzgerald
Adds calls to disable regmap cache-only after a successful return from cs35l56_wait_for_firmware_boot(). This is to prepare for a change in the shared ASoC module that will leave regmap in cache-only mode after cs35l56_system_reset(). This is to prevent register accesses going to the hardware while it is rebooting. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://msgid.link/r/20240408101803.43183-3-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2024-03-25ALSA: hda: cs35l56: Set the init_done flag before component_add()Simon Trimmer
Initialization is completed before adding the component as that can start the process of the device binding and trigger actions that check init_done. Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com> Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Fixes: 73cfbfa9caea ("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier") Message-ID: <20240325145510.328378-1-rf@opensource.cirrus.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-03-25ALSA: hda: cs35l56: Raise device name message log levelSimon Trimmer
The system and amplifier names influence which firmware and tuning files are downloaded to the device; log these values to aid end-user system support. Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com> Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Message-ID: <20240325142937.257869-1-rf@opensource.cirrus.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-03-11Merge tag 'asoc-v6.9' of ↵Takashi Iwai
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Updates for v6.9 This has been quite a small release, there's a lot of driver specific cleanups and minor enhancements but hardly anything on the core and only one new driver. Highlights include: - SoundWire support for AMD ACP 6.3 systems. - Support for reporting version information for AVS firmware. - Support DSPless mode for Intel Soundwire systems. - Support for configuring CS35L56 amplifiers using EFI calibration data. - Log which component is being operated on as part of power management trace events. - Support for Microchip SAM9x7, NXP i.MX95 and Qualcomm WCD939x
2024-03-08ALSA: hda: cs35l56: Add support for CS35L54 and CS35L57Simon Trimmer
Add the HID for the CS35L54 and CS35L57 Boosted Smart Amplifiers. These have the same control interface as the CS35L56 so are handled by the cs35l56-hda driver. Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com> Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Message-ID: <20240308135900.603192-3-rf@opensource.cirrus.com>
2024-02-23ALSA: hda: cs35l56: Apply amp calibration from EFI dataRichard Fitzgerald
If there are factory calibration settings in EFI, extract the settings and write them to the firmware calibration controls. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20240223153910.2063698-6-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-01ALSA: hda: cs35l56: Remove unused test stub functionRichard Fitzgerald
Remove an unused stub function that calls a non-existant function. This function was accidentally added as part of commit 2144833e7b41 ("ALSA: hda: cirrus_scodec: Add KUnit test"). It was a relic of an earlier version of the test that should have been removed. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Fixes: 2144833e7b41 ("ALSA: hda: cirrus_scodec: Add KUnit test") Link: https://msgid.link/r/20240129162737.497-19-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-01ALSA: hda: cs35l56: Firmware file must match the version of preloaded firmwareRichard Fitzgerald
Check whether the firmware is already patched. If so, include the firmware version in the firmware file name. If the firmware has already been patched by the BIOS the driver can only replace it if it has control of hard RESET. If the driver cannot replace the firmware, it can still load a wmfw (for ALSA control definitions) and/or a bin (for additional tunings). But these must match the version of firmware that is running on the CS35L56. The firmware is pre-patched if either: - FIRMWARE_MISSING == 0, or - it is a secured CS35L56 (which implies that is was already patched), cs35l56_hw_init() will set preloaded_fw_ver to the (non-zero) firmware version if either of these conditions is true. Normal (unpatched or replaceable firmware): cs35l56-rev-dsp1-misc[-system_name].[wmfw|bin] Preloaded firmware: cs35l56-rev[-s]-VVVVVV-dsp1-misc[-system_name].[wmfw|bin] Where: [-s] is an optional -s added into the name for a secured CS35L56 VVVVVV is the 24-bit firmware version in hexadecimal. Backport note: This won't apply to kernel versions older than v6.6. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Fixes: 73cfbfa9caea ("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier") Link: https://msgid.link/r/20240129162737.497-18-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-01ALSA: hda: cs35l56: Fix filename string field layoutRichard Fitzgerald
Change the filename field layout to: cs35l56-rev[-s]-dsp1-misc[-sub].[wmfw|bin] This is to keep the same firmware file naming scheme as the CS35L56 ASoC driver. This is not a compatibility break because no firmware files have been published. The original field layout matched the ASoC driver, but the way the ASoC driver used the wm_adsp driver config to form this filename was bugged. Fixing the ASoC driver to use the correct wm_adsp config strings means that the 's' flag (to indicate a secured part) has to move to somewhere after the first '-'. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Fixes: 73cfbfa9caea ("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier") Link: https://msgid.link/r/20240129162737.497-17-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-01ALSA: hda: cs35l56: Fix order of searching for firmware filesRichard Fitzgerald
Check for the cases of system-specific bin file without a wmfw before falling back to looking for a generic wmfw. All system-specific options should be tried before falling back to loading a generic wmfw/bin. With the original code, the presence of a fallback generic wmfw on the filesystem would prevent using a system-specific tuning with a ROM firmware. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Fixes: 73cfbfa9caea ("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier") Link: https://msgid.link/r/20240129162737.497-16-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-01ALSA: hda: cs35l56: Initialize all ASP1 registersRichard Fitzgerald
Add ASP1_FRAME_CONTROL1, ASP1_FRAME_CONTROL5 and the ASP1_TX?_INPUT registers to the sequence used to initialize the ASP configuration. Write this sequence to the cache and directly to the registers to ensure that they match. A system-specific firmware can patch these registers to values that are not the silicon default, so that the CS35L56 boots already in the configuration used by Windows or by "driverless" Windows setups such as factory tuning. These may not match how Linux is configuring the HDA codec. And anyway on Linux the ALSA controls are used to configure routing options. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Fixes: 73cfbfa9caea ("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier") Link: https://msgid.link/r/20240129162737.497-10-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-19Merge branch 'for-linus' into for-nextTakashi Iwai
For applying HD-audio EPROBE_DEFER series cleanly. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-09-19ALSA: hda: cs35l56: Use the new RUNTIME_PM_OPS() macroRichard Fitzgerald
Use RUNTIME_PM_OPS() instead of the old SET_RUNTIME_PM_OPS(). This means we don't need __maybe_unused on the functions. Fixes: 73cfbfa9caea ("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier") Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230919081153.19793-1-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-09-18ALSA: hda: cirrus_scodec: Add KUnit testRichard Fitzgerald
Add a KUnit test for cirrus_scodec_get_speaker_id(). It is impractical to have enough hardware with every possible permutation of speaker id. So use a test harness to test all theoretically supported options. The test harness consists of: - a mock GPIO controller. - a mock struct device to represent the scodec driver - software nodes to provide the fwnode info that would normally come from ACPI. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230918095129.440-3-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-09-18ALSA: hda: cs35l56: Add support for speaker idRichard Fitzgerald
Add handling of the "spk-id-gpios" _DSD property. If present, the value indicated by the GPIOs is appended to the subsystem-id part of the firmware name to load the appropriate tunings for that speaker. Some manufacturers use multiple sources of speakers, which need different tunings for best performance. On these models the type of speaker fitted is indicated by the values of one or more GPIOs. The number formed by the GPIOs identifies the tuning required. The speaker ID is only used in combination with a _SUB identifier because the value is only meaningful if the exact model is known. The code to get the speaker ID value has been implemented as a new library so that the cs35l41_hda driver can be switched in future to share common code. This library can be extended for other common functionality shared by Cirrus Logic amp drivers. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230918095129.440-2-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-09-15ALSA: hda: cs35l56: Fix missing RESET GPIO if _SUB is missingRichard Fitzgerald
In cs35l56_hda_read_acpi() do not return if ACPI _SUB is missing. A missing _SUB means that the driver cannot load a system-specific firmware, because the firmware is identified by the _SUB. But it can fallback to a generic firmware. Unfortunately this was being handled by immediately returning 0, which would skip the remaining ACPI configuration in cs35l56_hda_read_acpi() and so it would not get the RESET GPIO. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Fixes: 73cfbfa9caea ("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier") Link: https://lore.kernel.org/r/20230914152525.20829-1-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-09-14ALSA: hda: cs35l56: Don't 'return ret' if ret is always zeroRichard Fitzgerald
The final return in cs35l56_hda_posture_get() was returning the value of 'ret', but ret is always zero at this point. So this can be a simple 'return 0'. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230914140852.7112-1-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-09-12ALSA: hda: cs35l56: Call pm_runtime_dont_use_autosuspend()Richard Fitzgerald
Driver remove() must call pm_runtime_dont_use_autosuspend(). Drivers that call pm_runtime_use_autosuspend() must disable it in driver remove(). Unfortunately until recently this was only mentioned in 1 line in a 900+ line document so most people hadn't noticed this. It has only recently been added to the kerneldoc of pm_runtime_use_autosuspend(). Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Fixes: 73cfbfa9caea ("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier") Link: https://lore.kernel.org/r/20230908101223.2656901-1-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-01ALSA: hda/cs35l56: Reject I2C alias addressesRichard Fitzgerald
The ACPI nodes for CS35L56 can contain an extra I2CSerialBusV2 that is not a real device, it is an alias address. This alias address will not be in the cirrus,dev-index array, so reject any instantions with a device address not found in the array. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230731165726.7940-10-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-01ALSA: hda/cs35l56: Fail if .bin not found and firmware not patchedRichard Fitzgerald
A tuning patch is always needed to enable the ASP audio port. If the BIOS did not patch the firmware, then it is mandatory to have a .bin file. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230731165726.7940-9-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-01ALSA: hda/cs35l56: Do not download firmware over existing RAM firmwareRichard Fitzgerald
A RAM firmware can only be downloaded if the CS35L56 is currently running from ROM firmware. The driver must not try to overwrite the RAM if the CS35L56 is already running from that RAM. Firmware can be downloaded in these two cases: - The BIOS has already patched the firmware (secured mode). In this case the firmware files will only contain tunings that are safe to overwrite. - The CS35L56 is running the built-in ROM firmware. After a RAM firmware has been downloaded it can only be cleared by hard resetting CS35L56. Some systems only hard-reset during power-on and do not give the driver control of hard reset. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230731165726.7940-8-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-01ALSA: hda/cs35l56: cs_dsp_power_down() on cs35l56_hda_fw_load() error pathRichard Fitzgerald
If cs35l56_hda_fw_load() successfully called cs_dsp_power_up() the error path must balance that with a call to cs_dsp_power_down(). Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230731165726.7940-7-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-01ALSA: hda/cs35l56: Call cs_dsp_power_down() before calling cs_dsp_remove()Richard Fitzgerald
In cs35l56_hda_unbind() cs_dsp_power_down() must be called to cleanup before calling cs_dsp_remove cs_dsp_remove(). Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230731165726.7940-6-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-01ALSA: hda/cs35l56: Always power-up and start cs_dspRichard Fitzgerald
Always call cs_dsp_power_up() and cs_dsp_run() in cs35l56_hda_fw_load() even if there aren't any firmware files to download. Also, if there aren't any firmware files to download there is no need to do cs35l56_firmware_shutdown() and cs35l56_system_reset(). If there aren't any firmware files there's no need to write anything to the CS35L56 registers to make it work - it will already be running the ROM firmware. So it's not strictly necessary to start cs_dsp. But it's perfectly ok to call cs_dsp_power_up() and cs_dsp_run() without downloading any firmware. This avoids having to support a state where audio is playing but cs_dsp is not running. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230731165726.7940-5-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-01ALSA: hda/cs35l56: Call cs_dsp_power_down() before reloading firmwareRichard Fitzgerald
When firmware is reloaded after a system resume cs_dsp_power_down() should be called before calling cs_dsp_power_up(). The fw_patched flag should also be cleared and only set again if the firmware download succeeded. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230731165726.7940-4-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-01ALSA: hda/cs35l56: Do not mark cache dirty after REINITRichard Fitzgerald
Only call regcache_mark_dirty() in cs35l56_hda_fw_load() if the CS35L56 was SYSTEM_RESET. recache_mark_dirty() changes the behaviour of regcache_sync() to write out cache values that are not the default value, and skip cache values that are the default. AUDIO_REINIT does not reset the registers. regcache_mark_dirty() after AUDIO_REINIT could cause the regcache_sync() to sync registers incorrectly because it will assume that all registers have reset to default. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230731165726.7940-3-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-01ALSA: hda/cs35l56: Complete firmware reboot before calling cs_dsp_run()Richard Fitzgerald
Move the call to cs_dsp_run() in cs35l56_hda_fw_load() so that it is after the CS35L56 has been reset/reinit'd and the regmap cache has been synced. cs_dsp_run() syncs up ALSA control cache values with the DSP memory so this must not be done until the firmware has reinitialized. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230731165726.7940-2-rf@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-07-27ALSA: hda/cs35l56: Do some clean up on probe errorDan Carpenter
Smatch complains that this return should be a goto: sound/pci/hda/cs35l56_hda.c:910 cs35l56_hda_common_probe() warn: missing unwind goto? The goto error disables cansleep so that seems reasonable. Fixes: 73cfbfa9caea ("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/465160f4-b7cf-41d5-931e-d6c9e68fa3c7@moroto.mountain Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-07-23ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifierSimon Trimmer
Add a driver for the Cirrus Logic CS35L56 amplifier. This uses the same component binding API as the CS35L41 driver. This is not a standalone HDA device; it provides control of the CS35L56 for systems that use a combination of an HDA codec and CS35L56 amplifiers with audio routed through the HDA codec. The CS35L56 combines a high-performance mono audio amplifier, Class-H tracking inductive boost converter, Halo Core(TM) DSP and a DC-DC boost converter supporting Class-H tracking. Control interfaces are I2C or SPI through the standard Linux I2C or SPI bus framework. Most chip functionality is controlled by on-board ROM firmware that is always running. Firmware patches can be applied by the driver in the form of a .wmfw file (firmware patch) and/or a .bin file (system tuning). Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com> Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20230721132120.5523-12-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>