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Message-ID: <7fdc00e1-0a93-43a6-8fb6-c447ad8aef64@linaro.org>
Date: Tue, 23 Jan 2024 09:39:57 +0100
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Subject: Re: [PATCH v4 7/8] arm64: dts: exynos: gs101: define USI8 with I2C
 configuration
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To: Tudor Ambarus <tudor.ambarus@linaro.org>, peter.griffin@linaro.org,
 mturquette@baylibre.com, sboyd@kernel.org, robh+dt@kernel.org,
 krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org
Cc: andi.shyti@kernel.org, alim.akhtar@samsung.com, s.nawrocki@samsung.com,
 tomasz.figa@gmail.com, cw00.choi@samsung.com,
 linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org,
 linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
 linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,
 andre.draszik@linaro.org, semen.protsenko@linaro.org,
 willmcvicker@google.com, kernel-team@android.com
References: <20240119111132.1290455-1-tudor.ambarus@linaro.org>
 <20240119111132.1290455-8-tudor.ambarus@linaro.org>
 <9d12f4f9-1892-48f3-b8d1-8f59788cc91d@linaro.org>
 <6ddbf20c-6929-4cb0-9fdb-570cc7170b9c@linaro.org>
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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In-Reply-To: <6ddbf20c-6929-4cb0-9fdb-570cc7170b9c@linaro.org>
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On 23/01/2024 09:34, Tudor Ambarus wrote:
> 
> 
> On 1/23/24 07:52, Krzysztof Kozlowski wrote:
>> On 19/01/2024 12:11, Tudor Ambarus wrote:
>>> USI8 I2C is used to communicate with an eeprom found on the battery
>>> connector. Define USI8 in I2C configuration.
>>>
>>> USI8 CONFIG register comes with a 0x0 reset value, meaning that USI8
>>> doesn't have a default protocol (I2C, SPI, UART) at reset. Thus the
>>> selection of the protocol is intentionally left for the board dts file.
>>
>> ... and dropped, because this patch does not build:
>> https://krzk.eu/#/builders/29/builds/3869
>> and I missed weird dependency mentioned in cover letter:
>>
>> "This patch set shall be queued after the cmu_misc clock name fixes from:"
>>
>> Sorry, this cannot work like that. DTS for new features cannot build
>> depend on driver changes.
> 
> No worries. What shall I do so that you re-consider the dropped patches?
> I'm not yet familiar with your release management, but I guess that if
> you submit your "fixes-clk" branch for integration into v6.8-rc2, and
> then merge v6.8-rc2 into your "next/dt64", you'll then be able to queue
> the dropped patches as well.

It is nothing specific to my release management but years old rule: DTS
branch cannot contain driver commits. It is nothing new, discussed on
mailing lists for various SoC architectures many times.

However I don't fully understand why that dependency - except patch hunk
context - exists. You shouldn't have such dependency.

Best regards,
Krzysztof