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ASoC: codecs: wm_adsp: Allow wm_adsp to hibernate without stopping DSP

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Some parts do not stop the DSP core before runtime suspend, however,
this leaves the DSP controls enabled and accessible whilst the part is
suspended and the regmap is cache_only.

Add new APIs to allow for the DSP to hibernate when the part is
suspended, and the DSP is not shut down.

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20260224161821.93365-3-sbinding@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Stefan Binding 2026-02-24 16:18:06 +00:00 committed by Mark Brown
parent 73942a6ea2
commit 6394a52c90
2 changed files with 7 additions and 0 deletions
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6
sound/soc/codecs/wm_adsp.c
View File

@ -1100,6 +1100,12 @@ void wm_adsp_stop(struct wm_adsp *dsp)
}
EXPORT_SYMBOL_GPL(wm_adsp_stop);
void wm_adsp_hibernate(struct wm_adsp *dsp, bool hibernate)
{
cs_dsp_hibernate(&dsp->cs_dsp, hibernate);
}
EXPORT_SYMBOL_GPL(wm_adsp_hibernate);
int wm_adsp_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{

1
sound/soc/codecs/wm_adsp.h
View File

@ -103,6 +103,7 @@ irqreturn_t wm_halo_wdt_expire(int irq, void *data);
int wm_adsp_run(struct wm_adsp *dsp);
void wm_adsp_stop(struct wm_adsp *dsp);
void wm_adsp_hibernate(struct wm_adsp *dsp, bool hibernate);
int wm_adsp_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event);