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From: Krzysztof Kozlowski <krzk@kernel.org>
To: 郑豪威 <zhenghaowei@loongson.cn>
Cc: gregkh@linuxfoundation.org, jirislaby@kernel.org,
	robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
	chenhuacai@kernel.org, kernel@xen0n.name, p.zabel@pengutronix.de,
	linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
	devicetree@vger.kernel.org, loongarch@lists.linux.dev
Subject: Re: [PATCH v3 3/3] LoongArch: Update dts to support Loongson UART driver.
Date: Mon, 26 Aug 2024 10:18:21 +0200	[thread overview]
Message-ID: <51f564ea-9507-40b4-a943-23bdd330e6d6@kernel.org> (raw)
In-Reply-To: <fb0ddbe0-8613-40ac-a3fb-9e544c50088d@loongson.cn>

On 26/08/2024 08:54, 郑豪威 wrote:
> 
> 在 2024/8/26 14:00, Krzysztof Kozlowski 写道:
>> On Mon, Aug 26, 2024 at 10:47:05AM +0800,zhenghaowei@loongson.cn wrote:
>>> From: Haowei Zheng<zhenghaowei@loongson.cn>
>>>
>>> Change to use the Loongson UART driver for Loongson-2K2000,
>>> Loongson-2K1000 and Loongson-2K0500.
>> Why?
>>
>> That's what commit msg should explain.  This is not bisectable and
>> breaks users without any reasonable need/explanation.
>>
>> Best regards,
>> Krzysztof
> 
> I got it, and I will provide detailed explanations like this:
> 
> We have provided separate UART drivers for ls2k0500,  ls2k1000, and
> 
> ls2k2000, which solves the issue of the full-featured serial port being
> 
> unusable. Additionally, we have implemented fractional division
> 
> functionality for ls2k2000.

You still break the users. Explain the problem you are fixing. NAK.

Best regards,
Krzysztof


      reply	other threads:[~2024-08-26  8:18 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-26  2:47 [PATCH v3 0/3] uart: Introduce uart driver for the Loongson family chips zhenghaowei
2024-08-26  2:47 ` [PATCH v3 1/3] dt-bindings: serial: Add Loongson UART controller zhenghaowei
2024-08-26  5:59   ` Krzysztof Kozlowski
2024-08-26  6:54     ` 郑豪威
2024-08-26  8:17       ` Krzysztof Kozlowski
2024-08-26  2:47 ` [PATCH v3 2/3] tty: serial: 8250: Add loongson uart driver support zhenghaowei
2024-08-26  2:47 ` [PATCH v3 3/3] LoongArch: Update dts to support Loongson UART driver zhenghaowei
2024-08-26  6:00   ` Krzysztof Kozlowski
2024-08-26  6:54     ` 郑豪威
2024-08-26  8:18       ` Krzysztof Kozlowski [this message]

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