linux-kernel - Re: [PATCH V1 4/4] irqchip/loongson-liointc: Add IRQCHIP_SKIP_SET

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Message-ID: <853bc63c-24ec-a004-ea29-1c58f45ca996@loongson.cn>
Date:   Mon, 22 May 2023 17:00:17 +0800
From:   Jianmin Lv <lvjianmin@...ngson.cn>
To:     loongson-kernel@...ts.loongnix.cn
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>, linux-kernel@...r.kernel.org,
        loongarch@...ts.linux.dev,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Huacai Chen <chenhuacai@...ngson.cn>,
        Yinbo Zhu <zhuyinbo@...ngson.cn>
Subject: Re: [PATCH V1 4/4] irqchip/loongson-liointc: Add
 IRQCHIP_SKIP_SET_WAKE flag



On 2023/5/20 下午4:43, Huacai Chen wrote:
> Hi, Jianmin,
> 
> On Sat, May 20, 2023 at 2:38 PM Jianmin Lv <lvjianmin@...ngson.cn> wrote:
>>
>> From: Yinbo Zhu <zhuyinbo@...ngson.cn>
>>
>> Liointc doesn't require specific logic to work with wakeup IRQs,
>> and no irq_set_wake callback is needed. To allow registered IRQs
>> from liointc to be used as a wakeup-source, and ensure irq_set_irq_wake()
>> works well, the flag IRQCHIP_SKIP_SET_WAKE should be added.
> Maybe using LIOINTC instead of Liointc/liointc is better in commit
> message. Except this small issue, for the whole series,
> Reviewed-by: Huacai Chen <chenhuacai@...ngson.cn>
> 
Ok, I'll change it, thanks.

>>
>> Signed-off-by: Yinbo Zhu <zhuyinbo@...ngson.cn>
>> Signed-off-by: Jianmin Lv <lvjianmin@...ngson.cn>
>> ---
>>   drivers/irqchip/irq-loongson-liointc.c | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/irqchip/irq-loongson-liointc.c b/drivers/irqchip/irq-loongson-liointc.c
>> index 9a9c2bf048a3..dbd1ccce0fb2 100644
>> --- a/drivers/irqchip/irq-loongson-liointc.c
>> +++ b/drivers/irqchip/irq-loongson-liointc.c
>> @@ -291,6 +291,7 @@ static int liointc_init(phys_addr_t addr, unsigned long size, int revision,
>>          ct->chip.irq_mask = irq_gc_mask_disable_reg;
>>          ct->chip.irq_mask_ack = irq_gc_mask_disable_reg;
>>          ct->chip.irq_set_type = liointc_set_type;
>> +       ct->chip.flags = IRQCHIP_SKIP_SET_WAKE;
>>
>>          gc->mask_cache = 0;
>>          priv->gc = gc;
>> --
>> 2.31.1
>>
>>
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