kernel.git/include/sound/hdaudio.h, branch linux-6.8.y

ALSA: mark all struct bus_type as const

2023-12-30T09:10:41Z

Now that the driver core can properly handle constant struct bus_type, move all of the sound subsystem struct bus_type structures as const, placing them into read-only memory which can not be modified at runtime. Note, this fixes a duplicate definition of ac97_bus_type, which somehow was declared extern in a .h file, and then static as a prototype in a .c file, and then properly later on in the same .c file. Amazing that no compiler warning ever showed up for this. Cc: Jaroslav Kysela Cc: Takashi Iwai Cc: Dawei Li Cc: Yu Liao Cc: "Rafael J. Wysocki" Cc: Hans de Goede Cc: linux-sound@vger.kernel.org Signed-off-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/2023121945-immersion-budget-d0aa@gregkh Signed-off-by: Takashi Iwai

ALSA: hda: Drop snd_hdac_calc_stream_format()

2023-11-27T16:28:47Z

There are no users of the function. Acked-by: Mark Brown Signed-off-by: Cezary Rojewski Acked-by: Jaroslav Kysela Link: https://lore.kernel.org/r/20231117120610.1755254-15-cezary.rojewski@intel.com Signed-off-by: Takashi Iwai

ALSA: hda: Upgrade stream-format infrastructure

2023-11-27T16:27:41Z

Introduce a set of functions that ultimately facilite SDxFMT-related calculations in atomic manner: First, introduce snd_pcm_subformat_width() and snd_pcm_hw_params_bits() helpers that separate the base functionality from the HDAudio-specific one. snd_hdac_format_normalize() - format converter. S20_LE, S24_LE and their unsigned and BE friends are invalid from HDAudio perspective but still can be specified as function argument due to compatibility reasons. snd_hdac_stream_format_bits() - obtain just the bits-per-sample value. Does not ignore subformat and msbits parameters. snd_hdac_stream_format() and snd_hdac_spdif_stream_format() - obtain the SDxFMT value given the audio format parameters. The former is stripped away of spdif-related information. Useful for users that do not care about them. Acked-by: Mark Brown Signed-off-by: Cezary Rojewski Acked-by: Jaroslav Kysela Link: https://lore.kernel.org/r/20231117120610.1755254-5-cezary.rojewski@intel.com Signed-off-by: Takashi Iwai

ALSA: hda: Honor subformat when querying PCMs

2023-11-27T16:24:27Z

Update mechanism for querying supported PCMs to allow for granular format selection when container size is 32 bits. Currently always the highest bit depth is selected, regardless of how many actual formats codec in question supports. Acked-by: Mark Brown Co-developed-by: Jaroslav Kysela Signed-off-by: Jaroslav Kysela Signed-off-by: Cezary Rojewski Link: https://lore.kernel.org/r/20231117120610.1755254-3-cezary.rojewski@intel.com Signed-off-by: Takashi Iwai

ALSA: hda: Add code_loading parameter to stream setup

2023-10-06T12:30:39Z

AudioDSP firmware is the one who kicks SDxFIFOS calculation when a stream is decoupled mode. During firmware bring up procedure, there is no firmware running and the code-loading stream is always a decoupled one. So, there is none to trigger the calculation and we end up with false-positive timeout (-110) messages. Signed-off-by: Cezary Rojewski Acked-by: Mark Brown Link: https://lore.kernel.org/r/20231006102857.749143-4-cezary.rojewski@intel.com Signed-off-by: Takashi Iwai

ALSA: hda: Poll SDxFIFOS after programming SDxFMT

2023-10-06T09:11:39Z

Software shall read SDxFIFOS calculated by the hardware and notify if invalid value is programmed before continuing the stream preparation. Signed-off-by: Cezary Rojewski Link: https://lore.kernel.org/r/20230926080623.43927-2-cezary.rojewski@intel.com Signed-off-by: Takashi Iwai

ALSA: hda: Add controller matching macros

2023-07-18T12:22:17Z

Some HDA controllers require additional handling, so there are macros to match them, however those are spread across multiple files. Add them all in one place, so they can be reused. Reviewed-by: Andy Shevchenko Acked-by: Mark Brown Reviewed-by: Cezary Rojewski Signed-off-by: Amadeusz Sławiński Link: https://lore.kernel.org/r/20230717114511.484999-6-amadeuszx.slawinski@linux.intel.com Signed-off-by: Takashi Iwai

ALSA: hda: Workaround for SDnCTL register on loongson

2023-06-07T10:41:21Z

On loongson controller, after calling snd_hdac_stream_updateb() to enable DMA engine, the SDnCTL.STRM will become to zero. We need to access SDnCTL in dword to keep SDnCTL.STRM is not changed. Signed-off-by: Yanteng Si Signed-off-by: Yingkun Meng Acked-by: Huacai Chen Link: https://lore.kernel.org/r/27aeddf5ebbe7c69631cec0e489c1b264be94990.1686128807.git.siyanteng@loongson.cn Signed-off-by: Takashi Iwai

ALSA: hda: Using polling mode for loongson controller by default

2023-06-07T10:37:25Z

On loongson controller, RIRBSTS.RINTFL cannot be cleared, azx_interrupt() is called all the time. We disable RIRB interrupt, and use polling mode by default. Signed-off-by: Yanteng Si Signed-off-by: Yingkun Meng Acked-by: Huacai Chen Link: https://lore.kernel.org/r/d309a75424d438b958d90d797b4f1ba45468e090.1686128807.git.siyanteng@loongson.cn Signed-off-by: Takashi Iwai

Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2023-02-24T20:58:55Z

Pull driver core updates from Greg KH: "Here is the large set of driver core changes for 6.3-rc1. There's a lot of changes this development cycle, most of the work falls into two different categories: - fw_devlink fixes and updates. This has gone through numerous review cycles and lots of review and testing by lots of different devices. Hopefully all should be good now, and Saravana will be keeping a watch for any potential regression on odd embedded systems. - driver core changes to work to make struct bus_type able to be moved into read-only memory (i.e. const) The recent work with Rust has pointed out a number of areas in the driver core where we are passing around and working with structures that really do not have to be dynamic at all, and they should be able to be read-only making things safer overall. This is the contuation of that work (started last release with kobject changes) in moving struct bus_type to be constant. We didn't quite make it for this release, but the remaining patches will be finished up for the release after this one, but the groundwork has been laid for this effort. Other than that we have in here: - debugfs memory leak fixes in some subsystems - error path cleanups and fixes for some never-able-to-be-hit codepaths. - cacheinfo rework and fixes - Other tiny fixes, full details are in the shortlog All of these have been in linux-next for a while with no reported problems" [ Geert Uytterhoeven points out that that last sentence isn't true, and that there's a pending report that has a fix that is queued up - Linus ] * tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (124 commits) debugfs: drop inline constant formatting for ERR_PTR(-ERROR) OPP: fix error checking in opp_migrate_dentry() debugfs: update comment of debugfs_rename() i3c: fix device.h kernel-doc warnings dma-mapping: no need to pass a bus_type into get_arch_dma_ops() driver core: class: move EXPORT_SYMBOL_GPL() lines to the correct place Revert "driver core: add error handling for devtmpfs_create_node()" Revert "devtmpfs: add debug info to handle()" Revert "devtmpfs: remove return value of devtmpfs_delete_node()" driver core: cpu: don't hand-override the uevent bus_type callback. devtmpfs: remove return value of devtmpfs_delete_node() devtmpfs: add debug info to handle() driver core: add error handling for devtmpfs_create_node() driver core: bus: update my copyright notice driver core: bus: add bus_get_dev_root() function driver core: bus: constify bus_unregister() driver core: bus: constify some internal functions driver core: bus: constify bus_get_kset() driver core: bus: constify bus_register/unregister_notifier() driver core: remove private pointer from struct bus_type ...