Re: [PATCH 7/7] ASoC: dt-bindings: ES8389: Add members about HPF and clock
Krzysztof Kozlowski <[email protected]> Mon, 15 Jun 2026 11:57:13 +0200
| Newsgroups | org.alsa-project.alsa-devel,org.kernel.vger.linux-devicetree |
|---|---|
| Message-ID | <[email protected]> |
On 15/06/2026 08:07, Zhang Yi wrote: >>>>> + $ref: /schemas/types.yaml#/definitions/flag >>>>> + description: >>>>> + Indicates that SCLK is used as the internal clock. >>>> >>>> And what happens with mclk in such case? Is it still wired? >>> >>> Yes, setting mclk-from-sclk does not affect the MCLK connection. >> >> I am asking about wiring of the device. If MCLK is used from SCLK, but >> SCLK is used as the internal clock, then how can you still have MCLK >> connected? > > If MCLK is derived from SCLK, whether the 'MCLK' pin on the device is > connected or not has no effect on operation. If MCLK is connected, why would you derive it from SCLK? That's the point - your clocks property already might be telling everything needed here. > >>>>> + >>>>> + everest,hpfl: >>>>> + $ref: /schemas/types.yaml#/definitions/uint8 >>>>> + description: >>>>> + the HPF value of ADCL. >>>> >>>> Is HPF value in dB? If so, use proper unit suffix and proper units. >>> >>> No, the values here correspond to the values in the registers. >>> The value is not in dB >> >> What are the meanings of the register values? > > The value of everest,hpfl is equal to the value of the corresponding register, > not the cutoff frequency of the HPF. You keep avoiding answers. I don't want you to encode standard units as register values. Best regards, Krzysztof