linux-kernel - Re: [PATCH] dt-bindings: phy: add rk3576 hdptx phy

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Message-ID: <3255768.PYKUYFuaPT@diego>
Date: Fri, 27 Dec 2024 21:08:41 +0100
From: Heiko Stübner <heiko@...ech.de>
To: Andy Yan <andyshrk@....com>, Krzysztof Kozlowski <krzk@...nel.org>
Cc: cristian.ciocaltea@...labora.com, detlev.casanova@...labora.com,
 krzk+dt@...nel.org, vkoul@...nel.org, kishon@...nel.org, robh@...nel.org,
 sebastian.reichel@...labora.com, linux-phy@...ts.infradead.org,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org,
 Andy Yan <andy.yan@...k-chips.com>
Subject: Re: [PATCH] dt-bindings: phy: add rk3576 hdptx phy

Hi Krzysztof, Andy,

Am Freitag, 27. Dezember 2024, 09:55:59 CET schrieb Krzysztof Kozlowski:
> On Tue, Dec 24, 2024 at 05:19:13PM +0800, Andy Yan wrote:
> > From: Andy Yan <andy.yan@...k-chips.com>
> > 
> > The HDPTX PHY on rk3576 is compatible with it on
> > rk3588.
> > 
> > Add compatible for it.
> > 
> > Signed-off-by: Andy Yan <andy.yan@...k-chips.com>
> > ---
> > 
> >  .../devicetree/bindings/phy/rockchip,rk3588-hdptx-phy.yaml | 7 +++++--
> >  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> Also: where are any users of this binding?
> 
> We don't take bindings without *UPSTREAM* users.

Andy, can you do a (separate) DTS series that binds all the display stuff
together on one rk3576 board? (iommu, hdptxphy, vop, hdmi)

Depending on how the driver sides go, this may be need to be revised at
the end, but should hopefully satisfy that "show a user" thing.

I guess Kever's EVB-series [0] might be a good base to build upon, with it
being a Rockchip EVB?


For people reading along, that whole display chain consists of:
- iommu [1]
- core display-controller additions for the rk3576 [2]
- this hdptxphy binding
- additions for the dw-hdmi-qp glue [3]

Heiko


[0] https://lore.kernel.org/lkml/20241220101551.3505917-1-kever.yang@rock-chips.com/
[1] https://lore.kernel.org/lkml/20240920094947.7566-1-andyshrk@163.com/
[2] https://lore.kernel.org/lkml/20241214081831.3330714-1-andyshrk@163.com/
[3} https://lore.kernel.org/lkml/20241225103741.364597-1-andyshrk@163.com/