On 10/12/2020 18:32, Ville Syrjälä wrote:
>>> @@ -1053,18 +1052,9 @@ static int setcmap_atomic(struct fb_cmap *cmap,
>>> struct fb_info *info)
>>> goto out_state;
>>> }
>>>
>>> - crtc_state = drm_atomic_get_crtc_state(state, crtc);
>>> - if (IS_ERR(crtc_state)) {
>>> - ret = PTR_ERR(crtc_state);
>>> + ret = drm_crtc_gamma_ramp_set(state, crtc, gamma_lut);
>>> + if (ret)
>>
>> You're nesting an atomic commit in an atomic commit here, that will go
>> boom. I guess ideally we'd move this into drm_client_modeset so it
>> remembers the fbdev gamma ramp and does it all in one go.
>
> IIRC that's pretty much what's in my branch that I mentioned earlier.
> Mentioning it again in case someone wants a leg up for implementing
> this idea ;)
Yep, I think your branch looks good, and I almost started working on it, but I
don't think I have
the time for it. I have to finish this by early next week, after which I don't
know when I could
continue with it (if ever, job change...).
Tomi
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