linux-kernel - Re: [PATCH v4 4/4] media: platform: synopsys: Add support for hdmi input driver

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Message-ID: <ae40e-66a22180-1-60612780@204847186>
Date: Thu, 25 Jul 2024 10:56:32 +0100
From: "Shreeya Patel" <shreeya.patel@...labora.com>
To: "Hans Verkuil" <hverkuil@...all.nl>
Cc: heiko@...ech.de, mchehab@...nel.org, robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org, mturquette@...libre.com, sboyd@...nel.org, p.zabel@...gutronix.de, jose.abreu@...opsys.com, nelson.costa@...opsys.com, shawn.wen@...k-chips.com, nicolas.dufresne@...labora.com, hverkuil-cisco@...all.nl, kernel@...labora.com, linux-kernel@...r.kernel.org, linux-media@...r.kernel.org, devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, "Dmitry Osipenko" <dmitry.osipenko@...labora.com>
Subject: Re: [PATCH v4 4/4] media: platform: synopsys: Add support for hdmi input 
 driver

On Sunday, July 21, 2024 14:21 IST, Hans Verkuil <hverkuil@...all.nl> wrote:

Hi Hans,

> On 19/07/2024 14:40, Shreeya Patel wrote:
> > Add initial support for the Synopsys DesignWare HDMI RX
> > Controller Driver used by Rockchip RK3588. The driver
> > supports:
> >  - HDMI 1.4b and 2.0 modes (HDMI 4k@...z)
> >  - RGB888, YUV422, YUV444 and YCC420 pixel formats
> >  - CEC
> >  - EDID configuration
> > 
> > The hardware also has Audio and HDCP capabilities, but these are
> > not yet supported by the driver.
> 
> FYI: if you want to add HDCP support, then please contact me. I have code
> available for that (i.e. the public API part), although it is out of date.
> 
> But if you want to enable HDCP in this driver, then I would be very happy
> to clean it up and post patches for that. It is something we (i.e. Cisco)
> have been using for several years now in out-of-tree drivers.
> 

Currently we do not have any plans to work on the HDCP support.
But in case the requirement arises in future, we will definitely reach
out to you.

Thanks,
Shreeya Patel

> I will try to review this patch in the next few days.
> 
> Regards,
> 
> 	Hans