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From: Conor Dooley <conor@kernel.org>
To: Ian Ray <ian.ray@gehealthcare.com>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Robert Foss <rfoss@kernel.org>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Jonas Karlman <jonas@kwiboo.se>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Luca Ceresoli <luca.ceresoli@bootlin.com>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Lucas Stach <l.stach@pengutronix.de>,
	dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 1/3] dt-bindings: display: synopsys,dw-hdmi: add ignore-rxsense
Date: Wed, 2 Sep 2026 18:32:33 +0100	[thread overview]
Message-ID: <20260902-relatable-caviar-a82542bcc02a@spud> (raw)
In-Reply-To: <20260902130117.2731-1-ian.ray@gehealthcare.com>

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On Wed, Sep 02, 2026 at 04:01:13PM +0300, Ian Ray wrote:
> Add a new property to ignore RXSENSE during hotplug events.
> 
> Fixes: da09daf88108 ("drm: bridge: dw_hdmi: only trigger hotplug event on link change")
> Signed-off-by: Ian Ray <ian.ray@gehealthcare.com>
> ---
>  .../bindings/display/bridge/synopsys,dw-hdmi.yaml         | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
> index 33481381cccc..0f6e4dabe11d 100644
> --- a/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
> +++ b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
> @@ -61,6 +61,14 @@ properties:
>    interrupts:
>      maxItems: 1
>  
> +  ignore-rxsense:
> +    type: boolean
> +    description:
> +      Determine the connector status from the HPD signal alone and ignore RX
> +      sense. Set this on boards where a downstream device (for example an HDMI
> +      to DP converter) keeps the TMDS lines permanently loaded, so that RX
> +      sense is always asserted and can never signal a disconnect.

I'm not very familiar at all with these kinds of devices, but this seems
like something pretty generic that not only this IP would need. Are
there other examples of this?

Additionally, you're missing a vendor prefix in the case that this does
remain limited to this one device.

pw-bot: changes-requested

Thanks,
Conor.

> +
>  additionalProperties: true
>  
>  ...
> -- 
> 2.47.3
> 

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      parent reply	other threads:[~2026-09-02 17:32 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-02 13:01 Ian Ray
2026-09-02 13:01 ` [PATCH v1 2/3] drm/bridge: dw-hdmi: optionally ignore rxsense when detecting hotplug Ian Ray
2026-09-02 15:38   ` Jonas Karlman
2026-09-02 17:08     ` Ian Ray
2026-09-02 13:01 ` [PATCH v1 3/3] ARM: dts: imx: bx50v3: ignore HDMI rxsense Ian Ray
2026-09-02 17:32 ` Conor Dooley [this message]

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