lkml.org 
[lkml]   [2020]   [Apr]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [RFC PATCH v10 6/9] media: tegra: Add Tegra210 Video input driver
From
Date
26.04.2020 05:10, Dmitry Osipenko пишет:
> 26.04.2020 04:43, Sowjanya Komatineni пишет:
> ...
>>> It looks to me that at least all those hardcoded HW format IDs do not
>>> match the older SoCs.
>>
>> TPG hard coded formats are supported on prior Tegra.
>>
>> Other supported formats are SoC dependent and  part of soc data in the
>> driver already.
>
> But I don't see where that SoC-dependent definition is made in
> terga210.c. That tegra_image_format enum looks T210-specific, isn't it?
>
> ...
>>> The driver will need to have a bit better separation if it's supposed to
>>> have a common core for all SoCs. Each incompatible VI/CSI hardware
>>> version should have its own kernel module.
>>
>> currently other Tegra host1x driver (drm) also does similar. Single
>> module for all Tegra SoCs.
>
> DRM driver has a proper separation of the sub-drivers where sub-driver
> won't load on unsupported hardware. The tegra-video driver should do the
> same, i.e. VI and CSI should be individual drivers (and not OPS). There
> could be a some common core, but for now it's not obvious to me what
> that core should be, maybe just the video.c.

Although, you're right that tegra_drm is compiled as a single module.
That's not good, I'm actually not sure now whether it is possible to
modularize host1x drivers properly without changing the whole host1x bus.

\
 
 \ /
  Last update: 2020-04-26 06:43    [W:0.090 / U:6.708 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site