On Tue, Jun 15, 2021 at 11:49:31AM +0200, Claudius Heine wrote: > +static int aic32x4_tas2505_spkdrv_putvol(struct snd_kcontrol *kcontrol, > + struct snd_ctl_elem_value *ucontrol) > +{ > + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); > + struct soc_mixer_control *mc = > + (struct soc_mixer_control *)kcontrol->private_value; > + u8 val; > + > + val = (ucontrol->value.integer.value[0] & 0x7f); > + val = mc->invert ? mc->max - val : val; > + val = (val < 0) ? 0 : val; > + snd_soc_component_write(component, TAS2505_SPKVOL1, val); > + > + return 0; > +} Controls should return a boolean indicating if they changed their value when written. Other than the hard coded register what's device specific here? It looks like a normal control with a maximum value, it is unclear why this is being open coded. > + SOC_DOUBLE_R_S_TLV("HP Driver Gain Playback Volume", AIC32X4_HPLGAIN, > + AIC32X4_HPLGAIN, 0, -0x6, 0x1d, 5, 0, > + tlv_driver_gain), Drop the Gain. See control-names.rst.
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