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Date:   Wed, 25 Nov 2020 14:31:15 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Randy Dunlap <rdunlap@...radead.org>
Cc:     Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Heiko Stuebner <heiko@...ech.de>,
        Xuefeng Li <lixuefeng@...ngson.cn>
Subject: Re: [PATCH] phy/mediatek: Make PHY_MTK_XSPHY depend on HAS_IOMEM and
 OF_ADDRESS to fix build errors

On 11/25/2020 02:27 PM, Chunfeng Yun wrote:
> On Tue, 2020-11-24 at 19:31 -0800, Randy Dunlap wrote:
>> On 11/24/20 6:24 PM, Chunfeng Yun wrote:
>>> Hi Tiezhu,
>>>
>>> On Tue, 2020-11-24 at 17:47 +0800, Tiezhu Yang wrote:
>>>> devm_ioremap_resource() will be not built in lib/devres.c if
>>>> CONFIG_HAS_IOMEM is not set, of_address_to_resource() will be
>>>> not built in drivers/of/address.c if CONFIG_OF_ADDRESS is not
>>>> set, and then there exists two build errors about undefined
>>>> reference to "devm_ioremap_resource" and "of_address_to_resource"
>>>> in phy-mtk-xsphy.c under COMPILE_TEST and CONFIG_PHY_MTK_XSPHY,
>>>> make PHY_MTK_XSPHY depend on HAS_IOMEM and OF_ADDRESS to fix it.
>>>>
>>>> Reported-by: kernel test robot <lkp@...el.com>
>>>> Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
>>>> ---
>>>>   drivers/phy/mediatek/Kconfig | 2 ++
>>>>   1 file changed, 2 insertions(+)
>>>>
>>>> diff --git a/drivers/phy/mediatek/Kconfig b/drivers/phy/mediatek/Kconfig
>>>> index 50c5e93..66df045 100644
>>>> --- a/drivers/phy/mediatek/Kconfig
>>>> +++ b/drivers/phy/mediatek/Kconfig
>>>> @@ -30,6 +30,8 @@ config PHY_MTK_XSPHY
>>>>   	tristate "MediaTek XS-PHY Driver"
>>>>   	depends on ARCH_MEDIATEK || COMPILE_TEST
>>>>   	depends on OF
> Hi Tiezhu,
>
> Would you please help to put OF and OF_ADDRESS into one line as
> following:
> depends on OF && OF_ADDRESS.
>
> Also please help to add them for PHY_MTK_TPHY.
> And change the tile 'phy/mediatek: ...' as 'phy: mediatek: ...'

OK, no problem, I will do it.

Thanks,
Tiezhu

>
> Thank you
>
>
>>>> +	depends on HAS_IOMEM
>>>> +	depends on OF_ADDRESS
>>> Why not add them into deconfig but here? In fact I don't know which way
>>> is better and follow the kernel rule.
>>>
>>> Vinod and Kishon, do you have any suggestion about this?
>> Putting them into a defconfig won't prevent random build errors
>> while putting them here will (or at least should).
> hi Randy,
>
> Got it, thank you
>
>>>>   	select GENERIC_PHY
>>>>   	help
>>>>   	  Enable this to support the SuperSpeedPlus XS-PHY transceiver for
>> The patch LGTM.
>>
>> Acked-by: Randy Dunlap <rdunlap@...radead.org>
>>
>> thanks.

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