diff options
| author | Charles Keepax <ckeepax@opensource.wolfsonmicro.com> | 2016-09-26 10:15:23 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-09-26 09:03:53 -0700 |
| commit | 90d19ba54b428a6bc8cc51ef6c60c6e65e6e2f35 (patch) | |
| tree | 83ac2a0d8f2b78eda69e8c5dc8dfebeb2f80826f | |
| parent | 1fa96f3fdad7cef5d043a502682580d2bc3d5ace (diff) | |
ASoC: wm_adsp: Put DSP into low power state between loading and running
Between when we load the DSP and when it actually starts running put the
core into a lower power state where the memory is retained but nothing
is clocked.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/codecs/wm_adsp.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c index 4188c3763bc3..446f0297733f 100644 --- a/sound/soc/codecs/wm_adsp.c +++ b/sound/soc/codecs/wm_adsp.c @@ -2259,6 +2259,11 @@ static void wm_adsp2_boot_work(struct work_struct *work) mutex_lock(&dsp->pwr_lock); + ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL, + ADSP2_MEM_ENA, ADSP2_MEM_ENA); + if (ret != 0) + goto err_mutex; + ret = wm_adsp2_ena(dsp); if (ret != 0) goto err_mutex; @@ -2282,6 +2287,12 @@ static void wm_adsp2_boot_work(struct work_struct *work) dsp->booted = true; + /* Turn DSP back off until we are ready to run */ + ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL, + ADSP2_SYS_ENA, 0); + if (ret != 0) + goto err_ena; + mutex_unlock(&dsp->pwr_lock); return; @@ -2344,6 +2355,10 @@ int wm_adsp2_event(struct snd_soc_dapm_widget *w, if (!dsp->booted) return -EIO; + ret = wm_adsp2_ena(dsp); + if (ret != 0) + goto err; + /* Sync set controls */ ret = wm_coeff_sync_controls(dsp); if (ret != 0) @@ -2382,7 +2397,8 @@ int wm_adsp2_event(struct snd_soc_dapm_widget *w, dsp->booted = false; regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL, - ADSP2_CORE_ENA | ADSP2_START, 0); + ADSP2_MEM_ENA | ADSP2_CORE_ENA | ADSP2_START, + 0); /* Make sure DMAs are quiesced */ regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0); |