Messages in this thread | | | From | <> | Subject | Re: [PATCH v2 2/2] ASoC: codecs: pcm186x: Fix energysense SLEEP bit | Date | Wed, 20 Feb 2019 10:56:55 +0000 |
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On 19.02.2019 19:06, Andrew F. Davis wrote: > On 2/19/19 10:29 AM, Codrin.Ciubotariu@microchip.com wrote: >> From: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> >> >> The ADCs are sleeping when the SLEEP bit is set and running when it's >> cleared, so the bit should be inverted. >> Tested on pcm1863. >> > > Did this work for you before? Strange it would if reversed, I wonder if > the SLEEP bit is really doing anything here. Can investigate later, for > this patch:
The SLEEP bit seems to work. At least STATE from register 114 says the IP is sleeping. Without this change, if pcm1863 is used as master, I can see BCK and LRCK generated while no sound is played. Once I start an audio stream, the clocks stop.
Thank you for your ACK. I would really appreciate if you could also test it on your side.
Best regards, Codrin
> > Acked-by: Andrew F. Davis <afd@ti.com> > >> Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> >> --- >> >> Changes in v2: >> - none; >> >> sound/soc/codecs/pcm186x.c | 6 +++--- >> 1 file changed, 3 insertions(+), 3 deletions(-) >> >> diff --git a/sound/soc/codecs/pcm186x.c b/sound/soc/codecs/pcm186x.c >> index c36a391fec8a..c5fcc632f670 100644 >> --- a/sound/soc/codecs/pcm186x.c >> +++ b/sound/soc/codecs/pcm186x.c >> @@ -158,7 +158,7 @@ static const struct snd_soc_dapm_widget pcm1863_dapm_widgets[] = { >> * Put the codec into SLEEP mode when not in use, allowing the >> * Energysense mechanism to operate. >> */ >> - SND_SOC_DAPM_ADC("ADC", "HiFi Capture", PCM186X_POWER_CTRL, 1, 0), >> + SND_SOC_DAPM_ADC("ADC", "HiFi Capture", PCM186X_POWER_CTRL, 1, 1), >> }; >> >> static const struct snd_soc_dapm_widget pcm1865_dapm_widgets[] = { >> @@ -184,8 +184,8 @@ static const struct snd_soc_dapm_widget pcm1865_dapm_widgets[] = { >> * Put the codec into SLEEP mode when not in use, allowing the >> * Energysense mechanism to operate. >> */ >> - SND_SOC_DAPM_ADC("ADC1", "HiFi Capture 1", PCM186X_POWER_CTRL, 1, 0), >> - SND_SOC_DAPM_ADC("ADC2", "HiFi Capture 2", PCM186X_POWER_CTRL, 1, 0), >> + SND_SOC_DAPM_ADC("ADC1", "HiFi Capture 1", PCM186X_POWER_CTRL, 1, 1), >> + SND_SOC_DAPM_ADC("ADC2", "HiFi Capture 2", PCM186X_POWER_CTRL, 1, 1), >> }; >> >> static const struct snd_soc_dapm_route pcm1863_dapm_routes[] = { >>
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