[PATCH] ASoC: tas2562: Add support for digital volume control
Dan Murphy
dmurphy at ti.com
Thu Feb 20 19:46:57 CET 2020
Mark
On 2/20/20 12:45 PM, Mark Brown wrote:
> On Thu, Feb 20, 2020 at 11:27:21AM -0600, Dan Murphy wrote:
>
>> + /* Set the Digital volume to -110dB */
>> + ret = snd_soc_component_write(component, TAS2562_DVC_CFG4, 0x00);
>> + if (ret)
>> + return ret;
>> + ret = snd_soc_component_write(component, TAS2562_DVC_CFG3, 0x00);
>> + if (ret)
>> + return ret;
>> + ret = snd_soc_component_write(component, TAS2562_DVC_CFG2, 0x0d);
>> + if (ret)
>> + return ret;
>> + ret = snd_soc_component_write(component, TAS2562_DVC_CFG1, 0x43);
>> + if (ret)
>> + return ret;
> Is there a reason not to use the chip default here? Otherwise this
> looks good.
Chip default is set to 0dB full blast+ 0x40400000. This sets the volume
to -110dB.
I have the values backwards. CFG4 should b 0x43 and CFG3 should be 0x0d
and CFG1&2 should be 0.
I will resend v2 with this fixed.
Dan
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