Re: [PATCH v5 3/7] drm/msm/dpu: add DPU_PINGPONG_DSC bits into PP_BLK and PP_BLK_TE marcos

From: Abhinav Kumar
Date: Thu May 04 2023 - 16:18:57 EST




On 5/4/2023 12:59 PM, Dmitry Baryshkov wrote:
On 04/05/2023 22:50, Abhinav Kumar wrote:


On 5/4/2023 12:36 PM, Marijn Suijten wrote:
On 2023-05-04 11:25:44, Abhinav Kumar wrote:
<snip>
Sure, if you really prefer a split I'd go for two patches:
1. Add the flag to the enum and catalog;
2. Add the ops guard (functional change).

Then don't forget to reword the commit message, following the guidelines
below and the suggestion for 2/7.

- Marijn

Plan sounds good to me.

Marijn, we will wait for a couple of days to post the next rev but would
be hard more than that as we need to pick up other things which are
pending on top of this. Hence would appreciate if you can finish reviews
by then.

It depends on how many more revisions are needed after that, and not all
patches in this series have an r-b just yet.  Given the amount of review
comments that are still trickling in (also on patches that already have
maintainer r-b) I don't think we're quite there to start thinging about
picking this up in drm-msm just yet.  I doubt anyone wants a repeat of
the original DSC series, which went through many review rounds yet still
required multiple series of bugfixes (some of which were pointed out and
ignored in review) to be brought to a working state.  But the split
across topics per series already makes this a lot less likely, many
thanks for that.


I think the outstanding comments shouldnt last more than 1-2 revs more on this one as its mostly due to multiple patches on the list touching catalog at the same time. I have been monitoring the comments closely even though I dont respond to all of them.

One of the major reasons of the number of issues with DSC 1.1 was QC didn't really have the devices or panels to support it. Thats why I changed that this time around to take more control of validation of DSC 1.2 and ofcourse decided to break up of series into the least amount of functionality needed to keep the DPU driver intact.

All that being said, we still value your comments and would gladly wait for a couple of days like I already wrote. But there are more incremental series on top of this:

-> DSI changes for DSC 1.2
-> proper teardown for DSC
-> DSC pair allocation support
-> DSC 1.2 over DP

We will be posting all of these within next couple of weeks on top of this.

I'd say, it's fine to post them now, as we have more or less agreed on the helper series. The interface between the series should be stable then.

The RM series is probably the one having bigger dependencies/conflicts on other pending patches (include virtual wide planes)


1 is already posted, will keep fixing review comments
2 will be posted pretty soon

DSC1.2 over DSI will be complete with this set.

I will finish up virtual planes review by early next week. Already underway ...

3 & 4 will be posted soon after that.


In other words, let's take it slow and do things properly this time. And
who knows, perhaps the rest of these patches are more straightforward.


Ack. the intent is always to do things right the first time.

- Marijn

<snip>