On Tue, Nov 24, 2020 at 06:23:13PM +0100, Lukas F. Hartmann wrote:

The WM8960 DAC has a "DAC Slope" switch that can toggle between two different output filter curves. This patch adds support for it.

Signed-off-by: Lukas F. Hartmann <lukas@mntre.com> --- +static int wm8960_put_dacslope(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); + unsigned int val = ucontrol->value.integer.value[0]; + + if (val > 1) + return -EINVAL; + + wm8960->dacslope = val; + + return snd_soc_component_update_bits(component, WM8960_DACCTL1, + 0x2, val<<1);

Is the DAC Slope switch not in DACCTL2? Thanks, Charles