linux-kernel - Re: [PATCH V3] ata: pata_pxa: Use platform_get

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Date:   Wed, 9 Mar 2022 12:00:03 +0300
From:   Sergey Shtylyov <s.shtylyov@....ru>
To:     Sergei Shtylyov <sergei.shtylyov@...il.com>,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        <cgel.zte@...il.com>
CC:     <chi.minghao@....com.cn>, <linux-ide@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <zealci@....com.cn>
Subject: Re: [PATCH V3] ata: pata_pxa: Use platform_get_irq() to get the
 interrupt

On 09.03.2022 11:55, Sergei Shtylyov wrote:

>>> From: Minghao Chi <chi.minghao@....com.cn>
>>>
>>> platform_get_resource(pdev, IORESOURCE_IRQ, ..) relies on static
>>> allocation of IRQ resources in DT core code, this causes an issue
>>> when using hierarchical interrupt domains using "interrupts" property
>>> in the node as this bypasses the hierarchical setup and messes up the
>>> irq chaining.
>>>
>>> In preparation for removal of static setup of IRQ resource from DT core
>>> code use platform_get_irq().
>>>
>>> v1->v2:
>>>      - Use more specific in the subject: ata: pata_pxa:
>>>      - Switch to returning 'irq'
>>> v2->v3:
>>>      - drop the unlikely()
>>
>> Looks good. FYI, the changelog above should be placed under the "---"
>> after your Signed-off-by so that it does not stay as part of the commit
>> message. No need to resend, I will remove this when applying.
>>
>> Sergey,
>>
>> Review OK ?
> 
>     Yes.

    Ugh, replied from the wrong account. I had provided my Reviewed-by: tag 
already...

>     Although, strictly speaking, we still need to check for IRQ0 as well...

    The platform_get_irq() patch preventing IRQ0 hasn't landed still...

MBR, Sergey