[PATCH v5 1/2] ARM: dts: r8a7742-iwg21d-q7-dbcm-ca: Separate out ov5640 nodes
Prabhakar Mahadev Lad
prabhakar.mahadev-lad.rj at bp.renesas.com
Sun Feb 21 15:43:47 EST 2021
Hi Geert,
Thank you for the patch.
> -----Original Message-----
> From: Geert Uytterhoeven <geert+renesas at glider.be>
> Sent: 22 January 2021 11:34
> To: Prabhakar <prabhakar.csengg at gmail.com>; Magnus Damm <magnus.damm at gmail.com>; Rob Herring
> <robh+dt at kernel.org>
> Cc: Biju Das <biju.das.jz at bp.renesas.com>; Jacopo Mondi <jacopo at jmondi.org>; linux-renesas-
> soc at vger.kernel.org; linux-arm-kernel at lists.infradead.org; devicetree at vger.kernel.org; Prabhakar
> Mahadev Lad <prabhakar.mahadev-lad.rj at bp.renesas.com>; Geert Uytterhoeven <geert+renesas at glider.be>
> Subject: [PATCH v5 1/2] ARM: dts: r8a7742-iwg21d-q7-dbcm-ca: Separate out ov5640 nodes
>
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj at bp.renesas.com>
>
> The camera daughter board can also be connected to 8-bit ov7725 sensors,
> so in preparation for configurable option to choose depending on the
> camera's connected separate out the ov5640 nodes in a dtsi file.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj at bp.renesas.com>
> Reviewed-by: Biju Das <biju.das.jz at bp.renesas.com>
> [geert: describe a single camera in the .dtsi, include multiple times]
> Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>
> ---
> v5:
> - Only enable i2c buses when needed,
>
> v4:
> - Describe a single camera in the .dtsi file,
> - Include the .dtsi multiple times.
> ---
> .../boot/dts/r8a7742-iwg21d-q7-dbcm-ca.dts | 155 +++++++++---------
> .../r8a7742-iwg21d-q7-dbcm-ov5640-single.dtsi | 32 ++++
> 2 files changed, 107 insertions(+), 80 deletions(-)
> create mode 100644 arch/arm/boot/dts/r8a7742-iwg21d-q7-dbcm-ov5640-single.dtsi
>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj at bp.renesas.com>
Cheers,
Prabhakar
> diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7-dbcm-ca.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7-
> dbcm-ca.dts
> index 98c3fbd89fa6c5c7..bc8280b2ac47e3ec 100644
> --- a/arch/arm/boot/dts/r8a7742-iwg21d-q7-dbcm-ca.dts
> +++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7-dbcm-ca.dts
> @@ -91,92 +91,20 @@ &hscif0 {
> status = "okay";
> };
>
> -&i2c0 {
> - ov5640 at 3c {
> - compatible = "ovti,ov5640";
> - reg = <0x3c>;
> - clocks = <&mclk_cam1>;
> - clock-names = "xclk";
> -
> - port {
> - ov5640_0: endpoint {
> - bus-width = <8>;
> - data-shift = <2>;
> - bus-type = <6>;
> - pclk-sample = <1>;
> - remote-endpoint = <&vin0ep>;
> - };
> - };
> - };
> -};
> -
> &i2c1 {
> pinctrl-0 = <&i2c1_pins>;
> pinctrl-names = "default";
>
> - status = "okay";
> + /* status set to "okay" when needed by camera configuration below */
> clock-frequency = <400000>;
> -
> - ov5640 at 3c {
> - compatible = "ovti,ov5640";
> - reg = <0x3c>;
> - clocks = <&mclk_cam2>;
> - clock-names = "xclk";
> -
> - port {
> - ov5640_1: endpoint {
> - bus-width = <8>;
> - data-shift = <2>;
> - bus-type = <6>;
> - pclk-sample = <1>;
> - remote-endpoint = <&vin1ep>;
> - };
> - };
> - };
> -};
> -
> -&i2c2 {
> - ov5640 at 3c {
> - compatible = "ovti,ov5640";
> - reg = <0x3c>;
> - clocks = <&mclk_cam3>;
> - clock-names = "xclk";
> -
> - port {
> - ov5640_2: endpoint {
> - bus-width = <8>;
> - data-shift = <2>;
> - bus-type = <6>;
> - pclk-sample = <1>;
> - remote-endpoint = <&vin2ep>;
> - };
> - };
> - };
> };
>
> &i2c3 {
> pinctrl-0 = <&i2c3_pins>;
> pinctrl-names = "default";
>
> - status = "okay";
> + /* status set to "okay" when needed by camera configuration below */
> clock-frequency = <400000>;
> -
> - ov5640 at 3c {
> - compatible = "ovti,ov5640";
> - reg = <0x3c>;
> - clocks = <&mclk_cam4>;
> - clock-names = "xclk";
> -
> - port {
> - ov5640_3: endpoint {
> - bus-width = <8>;
> - data-shift = <2>;
> - bus-type = <6>;
> - pclk-sample = <1>;
> - remote-endpoint = <&vin3ep>;
> - };
> - };
> - };
> };
>
> &pfc {
> @@ -267,6 +195,21 @@ &scifb1 {
> cts-gpios = <&gpio4 17 GPIO_ACTIVE_LOW>;
> };
>
> +/*
> + * Below configuration ties VINx endpoints to ov5640/ov7725 camera endpoints
> + *
> + * Uncomment the #include statements to change configuration
> + */
> +
> +/* 8bit CMOS Camera 1 (J13) */
> +#define CAM_PARENT_I2C i2c0
> +#define MCLK_CAM mclk_cam1
> +#define CAM_EP cam0ep
> +#define VIN_EP vin0ep
> +#undef CAM_ENABLED
> +#include "r8a7742-iwg21d-q7-dbcm-ov5640-single.dtsi"
> +
> +#ifdef CAM_ENABLED
> &vin0 {
> /*
> * Set SW2 switch on the SOM to 'ON'
> @@ -278,13 +221,28 @@ &vin0 {
>
> port {
> vin0ep: endpoint {
> - remote-endpoint = <&ov5640_0>;
> + remote-endpoint = <&cam0ep>;
> bus-width = <8>;
> bus-type = <6>;
> };
> };
> };
> -
> +#endif /* CAM_ENABLED */
> +
> +#undef CAM_PARENT_I2C
> +#undef MCLK_CAM
> +#undef CAM_EP
> +#undef VIN_EP
> +
> +/* 8bit CMOS Camera 2 (J14) */
> +#define CAM_PARENT_I2C i2c1
> +#define MCLK_CAM mclk_cam2
> +#define CAM_EP cam1ep
> +#define VIN_EP vin1ep
> +#undef CAM_ENABLED
> +#include "r8a7742-iwg21d-q7-dbcm-ov5640-single.dtsi"
> +
> +#ifdef CAM_ENABLED
> &vin1 {
> /* Set SW1 switch on the SOM to 'ON' */
> status = "okay";
> @@ -293,13 +251,29 @@ &vin1 {
>
> port {
> vin1ep: endpoint {
> - remote-endpoint = <&ov5640_1>;
> + remote-endpoint = <&cam1ep>;
> bus-width = <8>;
> bus-type = <6>;
> };
> };
> };
>
> +#endif /* CAM_ENABLED */
> +
> +#undef CAM_PARENT_I2C
> +#undef MCLK_CAM
> +#undef CAM_EP
> +#undef VIN_EP
> +
> +/* 8bit CMOS Camera 3 (J12) */
> +#define CAM_PARENT_I2C i2c2
> +#define MCLK_CAM mclk_cam3
> +#define CAM_EP cam2ep
> +#define VIN_EP vin2ep
> +#undef CAM_ENABLED
> +#include "r8a7742-iwg21d-q7-dbcm-ov5640-single.dtsi"
> +
> +#ifdef CAM_ENABLED
> &vin2 {
> status = "okay";
> pinctrl-0 = <&vin2_pins>;
> @@ -307,14 +281,29 @@ &vin2 {
>
> port {
> vin2ep: endpoint {
> - remote-endpoint = <&ov5640_2>;
> + remote-endpoint = <&cam2ep>;
> bus-width = <8>;
> data-shift = <8>;
> bus-type = <6>;
> };
> };
> };
> -
> +#endif /* CAM_ENABLED */
> +
> +#undef CAM_PARENT_I2C
> +#undef MCLK_CAM
> +#undef CAM_EP
> +#undef VIN_EP
> +
> +/* 8bit CMOS Camera 4 (J11) */
> +#define CAM_PARENT_I2C i2c3
> +#define MCLK_CAM mclk_cam4
> +#define CAM_EP cam3ep
> +#define VIN_EP vin3ep
> +#undef CAM_ENABLED
> +#include "r8a7742-iwg21d-q7-dbcm-ov5640-single.dtsi"
> +
> +#ifdef CAM_ENABLED
> &vin3 {
> status = "okay";
> pinctrl-0 = <&vin3_pins>;
> @@ -322,9 +311,15 @@ &vin3 {
>
> port {
> vin3ep: endpoint {
> - remote-endpoint = <&ov5640_3>;
> + remote-endpoint = <&cam3ep>;
> bus-width = <8>;
> bus-type = <6>;
> };
> };
> };
> +#endif /* CAM_ENABLED */
> +
> +#undef CAM_PARENT_I2C
> +#undef MCLK_CAM
> +#undef CAM_EP
> +#undef VIN_EP
> diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7-dbcm-ov5640-single.dtsi b/arch/arm/boot/dts/r8a7742-
> iwg21d-q7-dbcm-ov5640-single.dtsi
> new file mode 100644
> index 0000000000000000..70c72ba4fe724a70
> --- /dev/null
> +++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7-dbcm-ov5640-single.dtsi
> @@ -0,0 +1,32 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * This include file ties a VIN interface with a single ov5640 sensor on
> + * the iWave-RZ/G1H Qseven board development platform connected with the
> + * camera daughter board.
> + *
> + * Copyright (C) 2020 Renesas Electronics Corp.
> + */
> +
> +#define CAM_ENABLED 1
> +
> +&CAM_PARENT_I2C {
> + status = "okay";
> +
> + ov5640 at 3c {
> + compatible = "ovti,ov5640";
> + reg = <0x3c>;
> + clocks = <&MCLK_CAM>;
> + clock-names = "xclk";
> + status = "okay";
> +
> + port {
> + CAM_EP: endpoint {
> + bus-width = <8>;
> + data-shift = <2>;
> + bus-type = <6>;
> + pclk-sample = <1>;
> + remote-endpoint = <&VIN_EP>;
> + };
> + };
> + };
> +};
> --
> 2.25.1
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