Re: [PATCH v2 09/10] drm/ofdrm: Add per-model device function

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Hello Michal,

On 7/26/22 16:40, Michal Suchánek wrote:
> Hello,
> 
> On Tue, Jul 26, 2022 at 03:38:37PM +0200, Javier Martinez Canillas wrote:
>> On 7/20/22 16:27, Thomas Zimmermann wrote:
>>> Add a per-model device-function structure in preparation of adding
>>> color-management support. Detection of the individual models has been
>>> taken from fbdev's offb.
>>>
>>> Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
>>> ---
>>
>> Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
>>
>> [...]
>>
>>> +static bool is_avivo(__be32 vendor, __be32 device)
>>> +{
>>> +	/* This will match most R5xx */
>>> +	return (vendor == 0x1002) &&
>>> +	       ((device >= 0x7100 && device < 0x7800) || (device >= 0x9400));
>>> +}
>>
>> Maybe add some constant macros to not have these magic numbers ?
> 
> This is based on the existing fbdev implementation's magic numbers:
> 
> drivers/video/fbdev/offb.c:                 ((*did >= 0x7100 && *did < 0x7800) ||
>

Ah, I see. Then we might have to go with the magic numbers...
 
> Of course, it would be great if somebody knowledgeable could clarify
> those.
>

Indeed.

-- 
Best regards,

Javier Martinez Canillas
Linux Engineering
Red Hat




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