linux-kernel - Re: [PATCH v3 3/3] LoongArch: Update dts to support Loongson UART driver.

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Message-ID: <fb0ddbe0-8613-40ac-a3fb-9e544c50088d@loongson.cn>
Date: Mon, 26 Aug 2024 14:54:59 +0800
From: 郑豪威 <zhenghaowei@...ngson.cn>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: gregkh@...uxfoundation.org, jirislaby@...nel.org, robh@...nel.org,
 krzk+dt@...nel.org, conor+dt@...nel.org, chenhuacai@...nel.org,
 kernel@...0n.name, p.zabel@...gutronix.de, linux-serial@...r.kernel.org,
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 loongarch@...ts.linux.dev
Subject: Re: [PATCH v3 3/3] LoongArch: Update dts to support Loongson UART
 driver.

在 2024/8/26 14:00, Krzysztof Kozlowski 写道:
> On Mon, Aug 26, 2024 at 10:47:05AM +0800,zhenghaowei@...ngson.cn wrote:
>> From: Haowei Zheng<zhenghaowei@...ngson.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.

Best regards,

Haowei Zheng