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From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Jacopo Mondi <jacopo+renesas@jmondi.org>
Cc: robh+dt@kernel.org, devicetree@vger.kernel.org,
	slongerbeam@gmail.com, linux-media@vger.kernel.org,
	linux-renesas-soc@vger.kernel.org, Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Loic Poulain <loic.poulain@linaro.org>
Subject: Re: [PATCH 02/13] arm64: dts: qcom: apq8016-sbc: Fix CSI-2 lanes routing
Date: Fri, 17 Jul 2020 22:35:09 +0300
Message-ID: <20200717193509.GD5961@pendragon.ideasonboard.com> (raw)
In-Reply-To: <20200717132859.237120-3-jacopo+renesas@jmondi.org>

Hi Jacopo,

On Fri, Jul 17, 2020 at 03:28:48PM +0200, Jacopo Mondi wrote:
> The ov5640 sensor does not support lanes reconfiguration according
> to version of the datasheet I have (version 2.03) and the driver
> does not parse the properties to try to reconfigure them.
> 
> Fix the properties values in the camera and cci node.
> 
> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
> ---
> Loic, I see you added the camera nodes in
> 39e0ce6cd1bf ("arm64: dts: qcom: apq8016-sbc: Add CCI/Sensor nodes")
> 
> Do you have any idea how lanes could be swapped if, from my understanding,
> nor the sensor nor the driver supports that ?

It's not supported on the OV5640 side, so I think the second hunk of
this patch is correct, but I believe that the CAMSS supports lane
reordering, so the first hunk is likely incorrect and should be dropped.

> ---
>  arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
> index 8a4b790aa7ff..fe6613676e45 100644
> --- a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
> +++ b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
> @@ -591,8 +591,8 @@ ports {
>  		port@0 {
>  			reg = <0>;
>  			csiphy0_ep: endpoint {
> -				clock-lanes = <1>;
> -				data-lanes = <0 2>;
> +				clock-lanes = <0>;
> +				data-lanes = <1 2>;
>  				remote-endpoint = <&ov5640_ep>;
>  				status = "okay";
>  			};
> @@ -627,8 +627,8 @@ camera_rear@3b {
> 
>  		port {
>  			ov5640_ep: endpoint {
> -				clock-lanes = <1>;
> -				data-lanes = <0 2>;
> +				clock-lanes = <0>;
> +				data-lanes = <1 2>;
>  				remote-endpoint = <&csiphy0_ep>;
>  			};
>  		};

-- 
Regards,

Laurent Pinchart

  reply index

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-17 13:28 [PATCH 00/13] dt-bindings: media: ov5640: Convert to json-schema Jacopo Mondi
2020-07-17 13:28 ` [PATCH 01/13] " Jacopo Mondi
2020-07-17 19:28   ` Laurent Pinchart
2020-07-20 16:32   ` Rob Herring
2020-07-17 13:28 ` [PATCH 02/13] arm64: dts: qcom: apq8016-sbc: Fix CSI-2 lanes routing Jacopo Mondi
2020-07-17 19:35   ` Laurent Pinchart [this message]
2020-07-22  8:14     ` Loic Poulain
2020-07-22  8:34       ` Jacopo Mondi
2020-07-17 13:28 ` [PATCH 03/13] dt-bindings: media: ov5640: Do not limit rotation Jacopo Mondi
2020-07-17 19:38   ` Laurent Pinchart
2020-07-20 19:36     ` Rob Herring
2020-07-17 13:28 ` [PATCH 04/13] dt-bindings: media: ti,cal: Remove sensor from example Jacopo Mondi
2020-07-17 19:39   ` Laurent Pinchart
2020-07-23 20:57   ` Rob Herring
2020-07-17 13:28 ` [PATCH 05/13] dt-bindings: media: ov5640: Make bus-type mandatory Jacopo Mondi
2020-07-17 15:48   ` Fabio Estevam
2020-07-17 19:48   ` Laurent Pinchart
2020-07-20 19:45   ` Rob Herring
2020-07-17 13:28 ` [PATCH 06/13] dt-bindings: media: ov5640: Require ep properties Jacopo Mondi
2020-07-17 19:50   ` Laurent Pinchart
2020-07-17 13:28 ` [PATCH 07/13] dt-bindings: media: ov5640: Remove clock-lanes Jacopo Mondi
2020-07-17 20:48   ` Laurent Pinchart
2020-07-20 19:47   ` Rob Herring
2020-07-17 13:28 ` [PATCH 08/13] dt-bindings: media: ov5640: Remove data-shift Jacopo Mondi
2020-07-17 20:57   ` Laurent Pinchart
2020-07-23 22:22     ` Sakari Ailus
2020-07-23 23:15       ` Laurent Pinchart
2020-07-25 21:18         ` Sakari Ailus
2020-07-25 21:31           ` Laurent Pinchart
2020-07-29 14:29             ` Sakari Ailus
2020-07-29 14:46               ` Laurent Pinchart
2020-07-30 16:22                 ` Sakari Ailus
2020-07-30 16:32                   ` Laurent Pinchart
2020-07-30 16:43                     ` Sakari Ailus
2020-07-17 13:28 ` [PATCH 09/13] dt-bindings: media: ov5640: Add default for synch signals Jacopo Mondi
2020-07-17 20:59   ` Laurent Pinchart
2020-07-20 19:50     ` Rob Herring
2020-07-17 13:28 ` [PATCH 10/13] dt-bindings: media: ov5640: Demote DVP required properties Jacopo Mondi
2020-07-17 21:00   ` Laurent Pinchart
2020-07-17 13:28 ` [PATCH 11/13] media: i2c: ov5640: Initialize DVP polarities as default Jacopo Mondi
2020-07-17 21:02   ` Laurent Pinchart
2020-07-17 13:28 ` [PATCH 12/13] MAINTAINERS: ov5640: Add bindings file Jacopo Mondi
2020-07-17 21:03   ` Laurent Pinchart
2020-07-17 13:28 ` [PATCH 13/13] dt-bindings: media: ov5640: Add myself as co-maintainer Jacopo Mondi
2020-07-17 21:03   ` Laurent Pinchart
2020-07-17 19:31 ` [PATCH 00/13] dt-bindings: media: ov5640: Convert to json-schema Laurent Pinchart

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