linux-kernel - Re: [PATCH v5 2/2] DRM: Add KMS driver for the Ingenic JZ47xx SoCs

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Message-ID: <20190619122622.GB29084@ravnborg.org>
Date:   Wed, 19 Jun 2019 14:26:22 +0200
From:   Sam Ravnborg <sam@...nborg.org>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Sean Paul <sean@...rly.run>, od@...c.me,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Artur Rojek <contact@...ur-rojek.eu>
Subject: Re: [PATCH v5 2/2] DRM: Add KMS driver for the Ingenic JZ47xx SoCs

Hi Paul.

On Mon, Jun 03, 2019 at 05:23:31PM +0200, Paul Cercueil wrote:
> Add a KMS driver for the Ingenic JZ47xx family of SoCs.
> This driver is meant to replace the aging jz4740-fb driver.
> 
> This driver does not make use of the simple pipe helper, for the reason
> that it will soon be updated to support more advanced features like
> multiple planes, IPU integration for colorspace conversion and up/down
> scaling, support for DSI displays, and TV-out and HDMI outputs.
> 
> Signed-off-by: Paul Cercueil <paul@...pouillou.net>
> Tested-by: Artur Rojek <contact@...ur-rojek.eu>
> ---
> 
> Notes:
>     v2: - Remove custom handling of panel. The panel is now discovered using
>     	  the standard API.
>     	- Lots of small tweaks suggested by upstream
>     
>     v3: - Use devm_drm_dev_init()
>     	- Update compatible strings to -lcd instead of -drm
>     	- Add destroy() callbacks to plane and crtc
>     	- The ingenic,lcd-mode is now read from the bridge's DT node
>     
>     v4: Remove ingenic,lcd-mode property completely. The various modes are now
>     	deduced from the connector type, the pixel format or the bus flags.
>     
>     v5: - Fix framebuffer size incorrectly calculated for 24bpp framebuffers
>     	- Use 32bpp framebuffer instead of 16bpp, as it'll work with both
>     	  16-bit and 24-bit panel
>     	- Get rid of drm_format_plane_cpp() which has been dropped upstream
>     	- Avoid using drm_format_info->depth, which is deprecated.
In the drm world we include the revision notes in the changelog.
So I did this when I applied it to drm-misc-next.

Fixed a few trivial checkpatch warnings about indent too.
There was a few too-long-lines warnings that I ignored. Fixing them
would have hurt readability.

I assume you will maintain this driver onwards from now.
Please request drm-misc commit rights (see
https://www.freedesktop.org/wiki/AccountRequests/)
You will need a legacy SSH account.

And you should familiarize yourself with the maintainer-tools:
https://drm.pages.freedesktop.org/maintainer-tools/index.html

For my use I use "dim update-branches; dim apply; dim push
So only a small subset i needed for simple use.

	Sam