[PATCH v5 2/3] drm/tidss: Update infrastructure to support K3 DSS cut-down versions

[Devarsh Thakkar]

Hi Tomi

On 03/05/25 14:14, Tomi Valkeinen wrote:
> On 02/05/2025 14:52, Devarsh Thakkar wrote:

>> Hi,
>>
>>
<snip>
>> Ok I see what you mean to say.....although functionally it is working
>> fine but from readability point of view it is confusing since both
>> functions use same argument name i.e hw_plane in two different contexts.
>> In that case, I would propose to use hw_id as arg name for all
>> dispc_k3_vid* functions, will that be okay ?
> 
> I'd prefer to have all the dispc functions take the same kind of index.
> 

Why? Even all dispc functions are not named with same prefix.
1) dispc_vid* functions act on VID* base directly and here plane
indexing would be w.r.t which VID* base we are using e.g VID vs VIDL
2) dispc_k3_vid* functions act on common region bits which are related
to VID pipelines and plane indexing would signify vid base w.r.t common
register space i.e. COMMON_VID_IRQ0 vs COMMON_VID_IRQ1.

As they both act on different register base and refer it in different
contexts (VID* base vs COMMON_VID* base)  and have also been named
differently anyway, I feel it is okay and legitimate to use hw_id for
dispc_k3_vid* functions (which would signify vid* indexing w.r.t common
region) and hw_plane for dispc_vid* functions (which would signify vid*
base w.r.t VID* regions mapped in device-tree).

Regards
Devarsh

>  Tomi
>