From: Krzysztof Kozlowski <krzk@kernel.org>
To: Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Chen Wang <unicorn_wang@outlook.com>,
Inochi Amaoto <inochiama@gmail.com>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>,
linux-sound@vger.kernel.org, devicetree@vger.kernel.org,
sophgo@lists.linux.dev, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org
Subject: Re: [PATCH v2 1/7] dt-bindings: sound: sophgo: add CV1800B I2S/TDM controller binding
Date: Sun, 18 Jan 2026 17:14:04 +0100 [thread overview]
Message-ID: <5248fe03-7e77-4c5d-ad05-e182b3068e66@kernel.org> (raw)
In-Reply-To: <aWzMvqzh-QXWRTWP@anton.local>
On 18/01/2026 13:18, Anton D. Stavinskii wrote:
>>
>> Again, messed constraints.
>>
>>> + items:
>>> + enum: [rx, tx]
>>
>> No, it has to be a specific/fixed list.
>
> Here is the question. Can you please help to understand how to describe
> this properly. The idea is that TDM module is usable even without
> specified dmas. Each TDM can work as clock source, only rx only tx or
> both. I can force to use both channels but the user probably will want
> to not consume all the channels for if it is not needed. DMA can provide
> channels for something else like SPI/I2C/UART etc. I'm asking because
> I'm afraid I will do some mess again here.
If any combination is valid in hardware, then:
minItems: 1
items:
- enum: [rx, tx]
- const: tx
Best regards,
Krzysztof
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linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
WARNING: multiple messages have this Message-ID (diff)
From: Krzysztof Kozlowski <krzk@kernel.org>
To: Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Chen Wang <unicorn_wang@outlook.com>,
Inochi Amaoto <inochiama@gmail.com>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>,
linux-sound@vger.kernel.org, devicetree@vger.kernel.org,
sophgo@lists.linux.dev, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org
Subject: Re: [PATCH v2 1/7] dt-bindings: sound: sophgo: add CV1800B I2S/TDM controller binding
Date: Sun, 18 Jan 2026 17:14:04 +0100 [thread overview]
Message-ID: <5248fe03-7e77-4c5d-ad05-e182b3068e66@kernel.org> (raw)
In-Reply-To: <aWzMvqzh-QXWRTWP@anton.local>
On 18/01/2026 13:18, Anton D. Stavinskii wrote:
>>
>> Again, messed constraints.
>>
>>> + items:
>>> + enum: [rx, tx]
>>
>> No, it has to be a specific/fixed list.
>
> Here is the question. Can you please help to understand how to describe
> this properly. The idea is that TDM module is usable even without
> specified dmas. Each TDM can work as clock source, only rx only tx or
> both. I can force to use both channels but the user probably will want
> to not consume all the channels for if it is not needed. DMA can provide
> channels for something else like SPI/I2C/UART etc. I'm asking because
> I'm afraid I will do some mess again here.
If any combination is valid in hardware, then:
minItems: 1
items:
- enum: [rx, tx]
- const: tx
Best regards,
Krzysztof
next prev parent reply other threads:[~2026-01-18 16:14 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-17 20:18 [PATCH v2 0/7] ASoC: sophgo: add CV1800 I2S controllers support Anton D. Stavinskii
2026-01-17 20:18 ` Anton D. Stavinskii
2026-01-17 20:18 ` [PATCH v2 1/7] dt-bindings: sound: sophgo: add CV1800B I2S/TDM controller binding Anton D. Stavinskii
2026-01-17 20:18 ` Anton D. Stavinskii
2026-01-18 10:14 ` Krzysztof Kozlowski
2026-01-18 10:14 ` Krzysztof Kozlowski
2026-01-18 12:18 ` Anton D. Stavinskii
2026-01-18 12:18 ` Anton D. Stavinskii
2026-01-18 16:14 ` Krzysztof Kozlowski [this message]
2026-01-18 16:14 ` Krzysztof Kozlowski
2026-01-18 17:07 ` Anton D. Stavinskii
2026-01-18 17:07 ` Anton D. Stavinskii
2026-01-18 17:32 ` Krzysztof Kozlowski
2026-01-18 17:32 ` Krzysztof Kozlowski
2026-01-18 17:55 ` Anton D. Stavinskii
2026-01-18 17:55 ` Anton D. Stavinskii
2026-01-17 20:18 ` [PATCH v2 2/7] ASoC: sophgo: add CV1800B I2S/TDM controller driver Anton D. Stavinskii
2026-01-17 20:18 ` Anton D. Stavinskii
2026-01-18 10:20 ` Krzysztof Kozlowski
2026-01-18 10:20 ` Krzysztof Kozlowski
2026-01-18 12:27 ` Anton D. Stavinskii
2026-01-18 12:27 ` Anton D. Stavinskii
2026-01-18 10:29 ` kernel test robot
2026-01-18 10:29 ` kernel test robot
2026-01-18 10:29 ` kernel test robot
2026-01-18 10:29 ` kernel test robot
2026-01-17 20:18 ` [PATCH v2 3/7] dt-bindings: sound: sophgo: add CV1800B internal ADC codec Anton D. Stavinskii
2026-01-17 20:18 ` Anton D. Stavinskii
2026-01-18 10:15 ` Krzysztof Kozlowski
2026-01-18 10:15 ` Krzysztof Kozlowski
2026-01-17 20:18 ` [PATCH v2 4/7] ASoC: sophgo: add CV1800B internal ADC codec driver Anton D. Stavinskii
2026-01-17 20:18 ` Anton D. Stavinskii
2026-01-18 15:14 ` kernel test robot
2026-01-18 15:14 ` kernel test robot
2026-01-17 20:18 ` [PATCH v2 5/7] dt-bindings: sound: sophgo: add CV1800B internal DAC codec Anton D. Stavinskii
2026-01-17 20:18 ` Anton D. Stavinskii
2026-01-18 10:16 ` Krzysztof Kozlowski
2026-01-18 10:16 ` Krzysztof Kozlowski
2026-01-18 12:38 ` Anton D. Stavinskii
2026-01-18 12:38 ` Anton D. Stavinskii
2026-01-17 20:18 ` [PATCH v2 6/7] ASoC: sophgo: add CV1800B internal DAC codec driver Anton D. Stavinskii
2026-01-17 20:18 ` Anton D. Stavinskii
2026-01-17 20:18 ` [PATCH v2 7/7] riscv: dts: sophgo: dts nodes for i2s tdm modules Anton D. Stavinskii
2026-01-17 20:18 ` Anton D. Stavinskii
2026-01-18 10:16 ` Krzysztof Kozlowski
2026-01-18 10:16 ` Krzysztof Kozlowski
2026-01-18 12:40 ` Anton D. Stavinskii
2026-01-18 12:40 ` Anton D. Stavinskii
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