[PATCH v5 3/9] drm: verisilicon: add a driver for Verisilicon display controllers

[Thomas Zimmermann]

Am 22.01.26 um 08:37 schrieb Icenowy Zheng:
> 在 2026-01-22星期四的 08:31 +0100，Thomas Zimmermann写道：
>> Hi
>>
>> Am 22.01.26 um 08:06 schrieb Icenowy Zheng:
>>> 在 2026-01-21星期三的 13:56 +0100，Thomas Zimmermann写道：
>>>
>>> =============== 8< =================
>>>>> +
>>>>> +       if (irqs)
>>>>> +               pr_warn("Unknown Verisilicon DC interrupt 0x%x
>>>>> fired!\n", irqs);
>>>> I'd avoid pr_warn() here. This can fill your logs quickly.
>>> Then is pr_warn_once() okay?
>> Yeah, warn_once should be fine.
>>
>>>>> +
>>>>> +       return IRQ_HANDLED;
>>>>> +}
>>> =============== 8< =================
>> Maybe consider returning IRQ_NONE if the (irq) tests succeeds.
> Well, the IRQs are read from the device's register, and the read
> operation automatically ACKs the IRQ, so it sounds more appropriate to
> always return IRQ_HANDLED.

That makes sense.

>
> (Well maybe this function should be made return void, and returning
> IRQ_HANDLED should be done in the caller of this function,
> vs_dc_irq_handler() )
>
> Thanks,
> Icenowy

-- 
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com
GF: Jochen Jaser, Andrew McDonald, Werner Knoblich, (HRB 36809, AG Nürnberg)