From: Krzysztof Kozlowski <krzk@kernel.org>
To: Zhang Yi <zhangyi@everest-semi.com>
Cc: alsa-devel@alsa-project.org, broonie@kernel.org,
conor+dt@kernel.org, devicetree@vger.kernel.org,
krzk+dt@kernel.org, robh@kernel.org, tiwai@suse.com
Subject: Re: [PATCH 7/7] ASoC: dt-bindings: ES8389: Add members about HPF and clock
Date: Mon, 15 Jun 2026 11:57:13 +0200 [thread overview]
Message-ID: <241d0fab-26ea-4c06-9928-e256f2cc5d1c@kernel.org> (raw)
In-Reply-To: <20260615060744.18775-1-zhangyi@everest-semi.com>
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
next prev parent reply other threads:[~2026-06-15 9:57 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-09 3:06 [PATCH 0/7] ASoC: codecs: ES8389: Modify the ES8389 driver Zhang Yi
2026-06-09 3:06 ` [PATCH 1/7] ASoC: codecs: ES8389: Modify volatile_register Zhang Yi
2026-06-09 3:17 ` sashiko-bot
2026-06-09 3:06 ` [PATCH 2/7] ASoC: codecs: ES8389: Fix the issue about mclk_src Zhang Yi
2026-06-09 3:20 ` sashiko-bot
2026-06-09 7:34 ` Krzysztof Kozlowski
2026-06-10 10:06 ` Zhang Yi
2026-06-13 7:33 ` Krzysztof Kozlowski
2026-06-15 6:06 ` Zhang Yi
2026-06-09 3:06 ` [PATCH 3/7] ASoC: codecs: ES8389: Modify the clock table Zhang Yi
2026-06-09 3:19 ` sashiko-bot
2026-06-09 3:06 ` [PATCH 4/7] ASoC: codecs: ES8389: Modify the initial configuration Zhang Yi
2026-06-09 3:13 ` sashiko-bot
2026-06-09 3:06 ` [PATCH 5/7] ASoC: codecs: ES8389: Add private members related to HPF Zhang Yi
2026-06-09 3:06 ` [PATCH 6/7] ASoC: codecs: ES8389: Add INPUTL MUX and INPUTR MUX Zhang Yi
2026-06-09 3:21 ` sashiko-bot
2026-06-09 3:06 ` [PATCH 7/7] ASoC: dt-bindings: ES8389: Add members about HPF and clock Zhang Yi
2026-06-09 7:33 ` Krzysztof Kozlowski
2026-06-10 9:58 ` Zhang Yi
2026-06-13 7:37 ` Krzysztof Kozlowski
2026-06-15 6:07 ` Zhang Yi
2026-06-15 9:57 ` Krzysztof Kozlowski [this message]
2026-06-15 10:14 ` Zhang Yi
2026-06-15 10:58 ` Krzysztof Kozlowski
-- strict thread matches above, loose matches on Subject: below --
2026-06-09 7:17 [PATCH 0/7] ASoC: codecs: ES8389: Modify the ES8389 driver Zhang Yi
2026-06-09 7:17 ` [PATCH 7/7] ASoC: dt-bindings: ES8389: Add members about HPF and clock Zhang Yi
2026-06-10 8:53 ` Krzysztof Kozlowski
2026-06-10 9:12 zhangyi
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