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From: "Jernej Škrabec" <jernej.skrabec@gmail.com>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: andrzej.hajda@intel.com, neil.armstrong@linaro.org,
	rfoss@kernel.org, robh+dt@kernel.org,
	krzysztof.kozlowski+dt@linaro.org, wens@csie.org,
	samuel@sholland.org, jonas@kwiboo.se, airlied@gmail.com,
	daniel@ffwll.ch, dri-devel@lists.freedesktop.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-media@vger.kernel.org,
	hverkuil-cisco@xs4all.nl
Subject: Re: [PATCH 3/3] ARM: dts: sun8i: h3: beelink-x2: Disable DW-HDMI CEC
Date: Sun, 16 Apr 2023 15:31:56 +0200	[thread overview]
Message-ID: <2675247.mvXUDI8C0e@jernej-laptop> (raw)
In-Reply-To: <20230416132531.GA28551@pendragon.ideasonboard.com>

Dne nedelja, 16. april 2023 ob 15:25:31 CEST je Laurent Pinchart napisal(a):
> Hi Jernej,
> 
> Thank you for the patch.
> 
> On Sat, Apr 15, 2023 at 12:46:13PM +0200, Jernej Skrabec wrote:
> > Beelink X2 uses software implementation of CEC even though DW-HDMI has
> > working hardware implementation.
> 
> Why ? The reason should be explained in the commit message.

Maybe I should reword this differently. It uses software implementation through 
GPIO pin. Dedicated DW-HDMI CEC pin is left unconnected.

Best regards,
Jernej 

> 
> > Disable unused DW-HDMI CEC.
> > 
> > Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
> > ---
> > 
> >  arch/arm/boot/dts/sun8i-h3-beelink-x2.dts | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts
> > b/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts index
> > a6d38ecee141..38f40d69e5c5 100644
> > --- a/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts
> > +++ b/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts
> > @@ -150,6 +150,7 @@ &emac {
> > 
> >  };
> >  
> >  &hdmi {
> > 
> > +	snps,disable-cec;
> > 
> >  	status = "okay";
> >  
> >  };





  reply	other threads:[~2023-04-16 13:32 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-15 10:46 [PATCH 0/3] drm/bridge: dw_hdmi: allow to disable CEC from DT Jernej Skrabec
2023-04-15 10:46 ` [PATCH 1/3] dt-bindings: display: synopsys,dw-hdmi: Add property for disabling CEC Jernej Skrabec
2023-04-18 21:41   ` Rob Herring
2023-04-21  7:07     ` Hans Verkuil
2023-04-15 10:46 ` [PATCH 2/3] drm/bridge: dw_hdmi: Handle snps,disable-cec property Jernej Skrabec
2023-04-17 13:32   ` Robert Foss
2023-04-15 10:46 ` [PATCH 3/3] ARM: dts: sun8i: h3: beelink-x2: Disable DW-HDMI CEC Jernej Skrabec
2023-04-16 13:25   ` Laurent Pinchart
2023-04-16 13:31     ` Jernej Škrabec [this message]
2023-04-16 13:47       ` Laurent Pinchart

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