linux-kernel - Re: [PATCH v2 0/5] arm64: dts: exynos8895: Add cmu, mct, serial_0/1 and spi

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Message-ID: <8e6810f2-366a-4c52-8406-79ea3970b530@gmail.com>
Date: Sat, 26 Oct 2024 14:59:56 +0300
From: Ivaylo Ivanov <ivo.ivanov.ivanov1@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, Andi Shyti
 <andi.shyti@...nel.org>, Mark Brown <broonie@...nel.org>,
 Alim Akhtar <alim.akhtar@...sung.com>, Rob Herring <robh@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Daniel Lezcano <daniel.lezcano@...aro.org>,
 Thomas Gleixner <tglx@...utronix.de>
Cc: linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/5] arm64: dts: exynos8895: Add cmu, mct, serial_0/1
 and spi_0/1




On 10/26/24 14:53, Krzysztof Kozlowski wrote:
> On 23/10/2024 11:17, Ivaylo Ivanov wrote:
>> Hey folks,
>>
>> This patchset adds device tree nodes for multiple clock management unit
>> blocks, MCT, SPI and UART for Exynos8895.
>>
>> Exynos8895 uses USIv1 for most of its serial buses, except a few that
>> have been implemented in this series. Support for USIv1 and HSI2C will
>> be added in the future.
>>
>> This patchset is dependent on [1] and [2], which add driver support for
>> CMU and UART.
>>
>> [1] https://lore.kernel.org/all/20241023090136.537395-1-ivo.ivanov.ivanov1@gmail.com/
> I cannot merge driver changes into DTS. Are you sure you have driver
> dependency?
>
>> [2] https://lore.kernel.org/all/20241023090902.538040-1-ivo.ivanov.ivanov1@gmail.com/
> I cannot merge this either. This is serial tree.
>
> Maybe you these are not really dependencies? What is here depending on
> what, specifically? What prevents me from applying it?

The specified patchsets add driver functionality, as well as bindings,
for serial and clocks. This patchset makes 8895's device tree a user
of them. I guess it's not really a dependency, as 8895 devices should
still function without the driver compatibles merged, but there's gonna
be missing bindings.

Best regards, Ivo.

> Best regards,
> Krzysztof
>