Messages in this thread | | | Date | Fri, 29 Oct 2021 18:03:25 +0100 | From | Mark Brown <> | Subject | Re: [PATCH] ASoC: cs42l42: Add control for audio slow-start switch |
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On Fri, Oct 29, 2021 at 05:13:05PM +0100, Richard Fitzgerald wrote: > +static int cs42l42_slow_start_put(struct snd_kcontrol *kcontrol, > + struct snd_ctl_elem_value *ucontrol) > +{ > + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); > + u8 val; > + > + /* all bits of SLOW_START_EN much change together */ > + switch (ucontrol->value.integer.value[0]) { > + case 0: > + val = 0; > + break; > + case 1: > + val = CS42L42_SLOW_START_EN_MASK; > + break; > + default: > + return -EINVAL; > + } > + > + snd_soc_component_update_bits(component, CS42L42_SLOW_START_ENABLE, > + CS42L42_SLOW_START_EN_MASK, val); > + > + return 0;
This should return 1 if the value changed. [unhandled content-type:application/pgp-signature] | |