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Message-ID: <31e2a67a-c046-9501-80de-e754ed450195@linaro.org>
Date:   Wed, 8 Mar 2023 09:37:40 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     zhuyinbo <zhuyinbo@...ngson.cn>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org
Cc:     Jianmin Lv <lvjianmin@...ngson.cn>,
        Liu Peibao <liupeibao@...ngson.cn>, wanghongliang@...ngson.cn,
        loongson-kernel@...ts.loongnix.cn
Subject: Re: [PATCH v13 1/2] dt-bindings: clock: add loongson-2 boot clock
 index

On 08/03/2023 02:35, zhuyinbo wrote:
> 
> 在 2023/3/7 下午8:47, Krzysztof Kozlowski 写道:
>> On 07/03/2023 12:50, Yinbo Zhu wrote:
>>> The Loongson-2 boot clock was used to spi and lio peripheral and
>>> this patch was to add boot clock index number.
>>>
>>> Signed-off-by: Yinbo Zhu <zhuyinbo@...ngson.cn>
>>> ---
>> This is v13? Where is the changelog then?
> 
> in fact, this is a new patch(v1),   but another clock driver patch in 
> this series had send as v13 and need depend on
> 
> this patch so set current patch as v13.

This should be explained in changelog.

> 
>>
>>
>>>   include/dt-bindings/clock/loongson,ls2k-clk.h | 25 ++++++++++---------
>>>   1 file changed, 13 insertions(+), 12 deletions(-)
>>>
>>> diff --git a/include/dt-bindings/clock/loongson,ls2k-clk.h b/include/dt-bindings/clock/loongson,ls2k-clk.h
>>> index db1e27e792ff1..e86804365e506 100644
>>> --- a/include/dt-bindings/clock/loongson,ls2k-clk.h
>>> +++ b/include/dt-bindings/clock/loongson,ls2k-clk.h
>>> @@ -13,17 +13,18 @@
>>>   #define LOONGSON2_DC_PLL				3
>>>   #define LOONGSON2_PIX0_PLL				4
>>>   #define LOONGSON2_PIX1_PLL				5
>>> -#define LOONGSON2_NODE_CLK				6
>>> -#define LOONGSON2_HDA_CLK				7
>>> -#define LOONGSON2_GPU_CLK				8
>>> -#define LOONGSON2_DDR_CLK				9
>>> -#define LOONGSON2_GMAC_CLK				10
>>> -#define LOONGSON2_DC_CLK				11
>>> -#define LOONGSON2_APB_CLK				12
>>> -#define LOONGSON2_USB_CLK				13
>>> -#define LOONGSON2_SATA_CLK				14
>>> -#define LOONGSON2_PIX0_CLK				15
>>> -#define LOONGSON2_PIX1_CLK				16
>>> -#define LOONGSON2_CLK_END				17
>>> +#define LOONGSON2_BOOT_CLK				6
>> That's an ABI break and commit msg does not explain it.
> you meaning is that need add a explanation in commit msg that why

You need good explanation to break the ABI. I don't understand the
commit msg, but anyway I could not find there justification for ABI
break. If you do not have good justification, don't break the ABI,



Best regards,
Krzysztof

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