kernel.git/include/sound/soc-card.h, branch linux-rolling-stable

ASoC: Drop snd_soc_*_get_kcontrol_locked()

2024-08-09T12:24:55Z

The recent cleanup in ALSA control core made no difference between snd_ctl_find_id_mixer() and snd_ctl_find_id_mixer_locked(), and the latter is to be dropped. The only user of the left API was ASoC, and that's snd_soc_card_get_kcontrol_locked() and snd_soc_component_get_kcontrol_locked(). This patch drops those functions and rewrites those users to call the variant without locked instead. The test of the API became superfluous, hence dropped as well. As all callers of snd_ctl_find_id_mixer_locked() are gone, snd_ctl_find_id_mixer_locked() is finally dropped, too. Reviewed-by: Mark Brown Signed-off-by: Takashi Iwai Link: https://patch.msgid.link/20240809104234.8488-4-tiwai@suse.de

ASoC: soc-card: Fix missing locking in snd_soc_card_get_kcontrol()

2024-02-23T13:40:06Z

snd_soc_card_get_kcontrol() must be holding a read lock on card->controls_rwsem while walking the controls list. Compare with snd_ctl_find_numid(). The existing function is renamed snd_soc_card_get_kcontrol_locked() so that it can be called from contexts that are already holding card->controls_rwsem (for example, control get/put functions). There are few direct or indirect callers of snd_soc_card_get_kcontrol(), and most are safe. Three require changes, which have been included in this patch: codecs/cs35l45.c: cs35l45_activate_ctl() is called from a control put() function so is changed to call snd_soc_card_get_kcontrol_locked(). codecs/cs35l56.c: cs35l56_sync_asp1_mixer_widgets_with_firmware() is called from control get()/put() functions so is changed to call snd_soc_card_get_kcontrol_locked(). fsl/fsl_xcvr.c: fsl_xcvr_activate_ctl() is called from three places, one of which already holds card->controls_rwsem: 1. fsl_xcvr_mode_put(), a control put function, which will already be holding card->controls_rwsem. 2. fsl_xcvr_startup(), a DAI startup function. 3. fsl_xcvr_shutdown(), a DAI shutdown function. To fix this, fsl_xcvr_activate_ctl() has been changed to call snd_soc_card_get_kcontrol_locked() so that it is safe to call directly from fsl_xcvr_mode_put(). The fsl_xcvr_startup() and fsl_xcvr_shutdown() functions have been changed to take a read lock on card->controls_rsem() around calls to fsl_xcvr_activate_ctl(). While this is not very elegant, it keeps the change small, to avoid this patch creating a large collateral churn in fsl/fsl_xcvr.c. Analysis of other callers of snd_soc_card_get_kcontrol() is that they do not need any changes, they are not holding card->controls_rwsem when they call snd_soc_card_get_kcontrol(). Direct callers of snd_soc_card_get_kcontrol(): fsl/fsl_spdif.c: fsl_spdif_dai_probe() - DAI probe function fsl/fsl_micfil.c: voice_detected_fn() - IRQ handler Indirect callers via soc_component_notify_control(): codecs/cs42l43: cs42l43_mic_shutter() - IRQ handler codecs/cs42l43: cs42l43_spk_shutter() - IRQ handler codecs/ak4118.c: ak4118_irq_handler() - IRQ handler codecs/wm_adsp.c: wm_adsp_write_ctl() - not currently used Indirect callers via snd_soc_limit_volume(): qcom/sc8280xp.c: sc8280xp_snd_init() - DAIlink init function ti/rx51.c: rx51_aic34_init() - DAI init function I don't have hardware to test the fsl/*, qcom/sc828xp.c, ti/rx51.c and ak4118.c changes. Backport note: The fsl/, qcom/, cs35l45, cs35l56 and cs42l43 callers were added since the Fixes commit so won't all be present on older kernels. Signed-off-by: Richard Fitzgerald Fixes: 209c6cdfd283 ("ASoC: soc-card: move snd_soc_card_get_kcontrol() to soc-card") Link: https://lore.kernel.org/r/20240221123710.690224-1-rf@opensource.cirrus.com Signed-off-by: Mark Brown

ASoC: soc.h: convert asoc_xxx() to snd_soc_xxx()

2023-09-25T12:16:13Z

ASoC is using 2 type of prefix (asoc_xxx() vs snd_soc_xxx()), but there is no particular reason about that [1]. To reduce confusing, standarding these to snd_soc_xxx() is sensible. This patch adds asoc_xxx() macro to keep compatible for a while. It will be removed if all drivers were switched to new style. Link: https://lore.kernel.org/r/87h6td3hus.wl-kuninori.morimoto.gx@renesas.com [1] Signed-off-by: Kuninori Morimoto Link: https://lore.kernel.org/r/87fs3ks26i.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown

ASoC: soc-card: Add storage for PCI SSID

2023-09-12T17:53:47Z

Add members to struct snd_soc_card to store the PCI subsystem ID (SSID) of the soundcard. The PCI specification provides two registers to store a vendor-specific SSID that can be read by drivers to uniquely identify a particular "soundcard". This is defined in the PCI specification to distinguish products that use the same silicon (and therefore have the same silicon ID) so that product-specific differences can be applied. PCI only defines 0xFFFF as an invalid value. 0x0000 is not defined as invalid. So the usual pattern of zero-filling the struct and then assuming a zero value unset will not work. A flag is included to indicate when the SSID information has been filled in. Unlike DMI information, which has a free-format entirely up to the vendor, the PCI SSID has a strictly defined format and a registry of vendor IDs. It is usual in Windows drivers that the SSID is used as the sole identifier of the specific end-product and the Windows driver contains tables mapping that to information about the hardware setup, rather than using ACPI properties. This SSID is important information for ASoC components that need to apply hardware-specific configuration on PCI-based systems. As the SSID is a generic part of the PCI specification and is treated as identifying the "soundcard", it is reasonable to include this information in struct snd_soc_card, instead of components inventing their own custom ways to pass this information around. Signed-off-by: Richard Fitzgerald Reviewed-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20230912163207.3498161-2-rf@opensource.cirrus.com Signed-off-by: Mark Brown

ASoC: add snd_soc_card_mutex_lock/unlock()

2023-04-17T11:57:26Z

ASoC need to use card->mutex with _INIT or _RUNTIME, but there is no helper function for it. This patch adds its helper function and use it. Because people might misunderstand that _init() is mutex initialization, this patch renames _INIT to _ROOT and adds new snd_soc_card_mutex_lock_root() for it. Signed-off-by: Kuninori Morimoto Link: https://lore.kernel.org/r/87a5zlx3tw.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown

ASoC: Introduce 'fixup_controls' card method

2022-06-10T12:32:20Z

The new method is called just before the card is registered, providing an opportune time for machine-level drivers to do some final controls amending: deactivating individual controls or obtaining control references for later use. Some controls can be created by DAPM after 'late_probe' has been called, hence the need for this new method. Signed-off-by: Martin Povišer Link: https://lore.kernel.org/r/20220606191910.16580-5-povik+lin@cutebit.org Signed-off-by: Mark Brown

ASoC: soc-card: Create jack kcontrol without pins

2022-04-14T16:37:21Z

snd_soc_card_jack_new() allowed to create jack kcontrol without pins, but did not create kcontrols. The jack would not have kcontrols if pins were not going to be added. This renames the old snd_soc_card_jack_new() to snd_soc_card_jack_new_pins() for use when pins are provided or will be added later. The new snd_soc_card_jack_new() appropriately creates a jack for use without pins and adds a kcontrol. Signed-off-by: Akihiko Odaki Link: https://lore.kernel.org/r/20220408041114.6024-1-akihiko.odaki@gmail.com Signed-off-by: Mark Brown

ASoC: soc-card: add snd_soc_card_remove_dai_link()

2020-05-30T01:11:42Z

Card related function should be implemented at soc-card now. This patch adds it. Signed-off-by: Kuninori Morimoto Reviewed-by: Ranjani Sridharan Link: https://lore.kernel.org/r/87mu5szv2h.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown

ASoC: soc-card: add snd_soc_card_add_dai_link()

2020-05-30T01:11:41Z

Card related function should be implemented at soc-card now. This patch adds it. This patch adds missing return when error case. Signed-off-by: Kuninori Morimoto Reviewed-by: Ranjani Sridharan Link: https://lore.kernel.org/r/87o8q8zv2m.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown

ASoC: soc-card: add snd_soc_card_set_bias_level_post()

2020-05-30T01:11:40Z

Card related function should be implemented at soc-card now. This patch adds it. Signed-off-by: Kuninori Morimoto Reviewed-by: Ranjani Sridharan Link: https://lore.kernel.org/r/87pnaozv2s.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown