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Date:   Thu, 20 Apr 2023 23:51:35 +0200
From:   Marijn Suijten <marijn.suijten@somainline.org>
To:     Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc:     Konrad Dybcio <konrad.dybcio@linaro.org>,
        Rob Clark <robdclark@gmail.com>,
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        Bjorn Andersson <andersson@kernel.org>,
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Subject: Re: [PATCH v2 11/17] drm/msm/dpu: Disable MDP vsync source selection
 on DPU 5.0.0 and above
Message-ID: <fxph57xh3waxv7fpjnmgai4krpgrdxf3bmp2b3vbpgqbmkcy6u@ib3ds6idhgwz>
References: <20230411-dpu-intf-te-v2-0-ef76c877eb97@somainline.org>
 <20230411-dpu-intf-te-v2-11-ef76c877eb97@somainline.org>
 <20fab838-e05b-163d-aa72-bd8235df9f2c@linaro.org>
 <38030486-f08a-33e6-f8d1-3f4de379a75b@linaro.org>
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On 2023-04-20 04:03:31, Dmitry Baryshkov wrote:
[..]
> >>>  ? -static void dpu_hw_setup_vsync_source(struct dpu_hw_mdp *mdp,
> >>> +static void dpu_hw_setup_vsync_source_v1(struct dpu_hw_mdp *mdp,
> >>>  ????????? struct dpu_vsync_source_cfg *cfg)
> >>
> >> In my opinion _v1 is not really descriptive here. Could you please rename it to dpu_hw_setup_vsync_source_no_vsync_sel() ?
> > v1 refers to the CTL rev 100 a.k.a 1.0.0 a.k.a 1, but that's not
> > yet very well formulated upstream.. if we even need it..

I think v1 just refers to "the first next variant of this function",
similar to how for example Microsoft COM APIs start without a suffix,
then get 1, 2, 3 etc appended as new variants "of the same" trickle in.

> Yeah, but this mdp_top, not the ctl. And for CTL I'd probably rename _v1 
> to _active to follow actual feature name.

Correct, I just got lazily inspired by downstream here.  There it
switches on SDE_MDP_VSYNC_SEL which is based on DPU >= 5.0.0 as
explained in the patch.

> >> Or maybe rename dpu_hw_setup_vsync_source() to dpu_hw_setup_vsync_source_vsync_sel() and drop _v1 from this function.

Maybe add _and_ in there?

> >>
> >> Up to you.

- Marijn