From: "Niklas Söderlund" <niklas.soderlund@ragnatech.se>
To: Jacopo Mondi <jacopo+renesas@jmondi.org>
Cc: laurent.pinchart@ideasonboard.com, horms@verge.net.au,
geert@glider.be, magnus.damm@gmail.com, robh+dt@kernel.org,
linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 3/3] arm64: dts: renesas: draak: Describe HDMI input
Date: Thu, 17 May 2018 00:23:18 +0200 [thread overview]
Message-ID: <20180516222318.GI17948@bigcity.dyn.berto.se> (raw)
In-Reply-To: <1526478129-16465-4-git-send-email-jacopo+renesas@jmondi.org>
Hi Jacopo,
Thanks for your patch.
On 2018-05-16 15:42:09 +0200, Jacopo Mondi wrote:
> Describe HDMI input connector and ADV7612 HDMI decoder installed on
> R-Car Gen3 Draak board.
>
> The video signal routing to the HDMI decoder to the video input interface
> VIN4 is multiplexed with CVBS input path, and enabled/disabled through
> on-board switches SW-49, SW-50, SW-51 and SW-52.
>
> As the default board switches configuration connects CVBS input to VIN4,
> leave the HDMI decoder unconnected in DTS.
>
> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
I'm not sure we have a policy about describing hardware which can't be
used without flipping switches. I have no opinion on if we should do
that or not I leave that to others, but for the change itself.
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
I think it's good we describe it as it's part of the Draak board itself
and not an expansion board which we have seen a lot of :-) Maybe even
add a commented out line in the adv7612 port@2 which hints which VIN
this is connected to if the switches are flipped?
> ---
> arch/arm64/boot/dts/renesas/r8a77995-draak.dts | 38 ++++++++++++++++++++++++++
> 1 file changed, 38 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/renesas/r8a77995-draak.dts b/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
> index 9aba28f..ea99dc9 100644
> --- a/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
> +++ b/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
> @@ -59,6 +59,17 @@
> };
> };
>
> + hdmi-in {
> + compatible = "hdmi-connector";
> + type = "a";
> +
> + port {
> + hdmi_con_in: endpoint {
> + remote-endpoint = <&adv7612_in>;
> + };
> + };
> + };
> +
> memory@48000000 {
> device_type = "memory";
> /* first 128MB is reserved for secure area. */
> @@ -170,6 +181,33 @@
> };
> };
> };
> +
> + hdmi-decoder@4c {
> + compatible = "adi,adv7612";
> + reg = <0x4c>;
> + default-input = <0>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + adv7612_in: endpoint {
> + remote-endpoint = <&hdmi_con_in>;
> + };
> + };
> +
> + port@2 {
> + reg = <2>;
> + adv7612_out: endpoint {
> + pclk-sample = <0>;
> + hsync-active = <0>;
> + vsync-active = <0>;
> + };
> + };
> + };
> + };
> };
>
> &i2c1 {
> --
> 2.7.4
>
--
Regards,
Niklas Söderlund
next prev parent reply other threads:[~2018-05-16 22:23 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-16 13:42 [PATCH v2 0/3] arm64: dts: Draak: Enable video inputs and VIN4 Jacopo Mondi
2018-05-16 13:42 ` [PATCH v2 1/3] dt-bindings: media: rcar-vin: Add R8A77995 support Jacopo Mondi
2018-05-16 13:42 ` [PATCH v2 2/3] arm64: dts: renesas: draak: Describe CVBS input Jacopo Mondi
2018-05-16 22:18 ` Niklas Söderlund
2018-05-17 5:58 ` kbuild test robot
2018-05-16 13:42 ` [PATCH v2 3/3] arm64: dts: renesas: draak: Describe HDMI input Jacopo Mondi
2018-05-16 22:23 ` Niklas Söderlund [this message]
2018-05-17 7:14 ` jacopo mondi
2018-05-17 9:03 ` Simon Horman
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