linux-kernel - Re: [PATCH 06/10] media: mtk-vcodec: venc: specify supported formats per-chip

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Date:   Fri, 26 Jun 2020 13:54:57 +0900
From:   Alexandre Courbot <acourbot@...omium.org>
To:     Tiffany Lin <tiffany.lin@...iatek.com>
Cc:     Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Rui Wang <gtk_ruiwang@...iatek.com>,
        Yunfei Dong <yunfei.dong@...iatek.com>,
        Pi-Hsun Shih <pihsun@...omium.org>,
        Maoguang Meng <maoguang.meng@...iatek.com>,
        Linux Media Mailing List <linux-media@...r.kernel.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 06/10] media: mtk-vcodec: venc: specify supported formats per-chip

Hi Tiffany,

On Tue, Jun 23, 2020 at 10:29 AM Tiffany Lin <tiffany.lin@...iatek.com> wrote:
>
> On Mon, 2020-06-22 at 21:44 +0900, Alexandre Courbot wrote:
> > On Fri, Jun 19, 2020 at 4:26 PM Tiffany Lin <tiffany.lin@...iatek.com> wrote:
> > >
> > > On Wed, 2020-05-20 at 17:27 +0900, Alexandre Courbot wrote:
> > > > Different chips have different supported bitrate ranges. Move the list
> > > > of supported formats to the platform data, and split the output and
> > > > capture formats into two lists to make it easier to find the default
> > > > format for each queue.
> > > >
> > >
> > > Does this patch pass v4l2 compliance test?
> >
> > This should not change the behavior towards userspace at all (it's
> > just moving data around and making it more flexible), so the test
> > results should not be affected either.
> >
> I remember that passing compliance tests is required for upstream.
> The tests try to make sure that all V4L2 driver implement interfaces in
> the same way.
> So user space applications could find/enumerate HW capability.

I have confirmed that this CL does not introduce any regression with
v4l2-compliance.