ASoC: wm_adsp: Add wm_adsp_start() and wm_adsp_stop()

Separate the functionality of wm_adsp_event() into two exported
functions wm_adsp_start() and wm_adsp_stop().

This allows the codec driver to start and stop the DSP outside of a
DAPM widget.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20240223153910.2063698-2-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index 36ea0dcdc7ab0033eb48e393d783e4f7d4df9854..e451c009f2d99980bab20dd5d4c55cc26bd73cd5 100644 (file)
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -1092,27 +1092,36 @@ static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp)
        dsp->fatal_error = false;
 }
 
+int wm_adsp_run(struct wm_adsp *dsp)
+{
+       flush_work(&dsp->boot_work);
+
+       return cs_dsp_run(&dsp->cs_dsp);
+}
+EXPORT_SYMBOL_GPL(wm_adsp_run);
+
+void wm_adsp_stop(struct wm_adsp *dsp)
+{
+       cs_dsp_stop(&dsp->cs_dsp);
+}
+EXPORT_SYMBOL_GPL(wm_adsp_stop);
+
 int wm_adsp_event(struct snd_soc_dapm_widget *w,
                  struct snd_kcontrol *kcontrol, int event)
 {
        struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
        struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
        struct wm_adsp *dsp = &dsps[w->shift];
-       int ret = 0;
 
        switch (event) {
        case SND_SOC_DAPM_POST_PMU:
-               flush_work(&dsp->boot_work);
-               ret = cs_dsp_run(&dsp->cs_dsp);
-               break;
+               return wm_adsp_run(dsp);
        case SND_SOC_DAPM_PRE_PMD:
-               cs_dsp_stop(&dsp->cs_dsp);
-               break;
+               wm_adsp_stop(dsp);
+               return 0;
        default:
-               break;
+               return 0;
        }
-
-       return ret;
 }
 EXPORT_SYMBOL_GPL(wm_adsp_event);
 

diff --git a/sound/soc/codecs/wm_adsp.h b/sound/soc/codecs/wm_adsp.h
index 067d807a7ca82d262685591226620abd75de64bd..e53dfcf1f78ff77e5bad89e9e1aef3bb34db242d 100644 (file)
--- a/sound/soc/codecs/wm_adsp.h
+++ b/sound/soc/codecs/wm_adsp.h
@@ -98,6 +98,8 @@ irqreturn_t wm_adsp2_bus_error(int irq, void *data);
 irqreturn_t wm_halo_bus_error(int irq, void *data);
 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);
 int wm_adsp_event(struct snd_soc_dapm_widget *w,
                  struct snd_kcontrol *kcontrol, int event);