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62b7f5931c
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
158 lines
3.7 KiB
Diff
158 lines
3.7 KiB
Diff
From 870de3bc0e80a9b79b470a45636437a0078041c1 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Tue, 7 Jul 2020 16:12:05 +0100
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Subject: [PATCH] dtoverlays: Create an overlay for the Omnivision
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OV7251 sensor
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Adds an overlay for the OV7251 VGA global shutter sensor.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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arch/arm/boot/dts/overlays/Makefile | 1 +
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arch/arm/boot/dts/overlays/README | 8 ++
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arch/arm/boot/dts/overlays/ov7251-overlay.dts | 111 ++++++++++++++++++
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3 files changed, 120 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/ov7251-overlay.dts
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--- a/arch/arm/boot/dts/overlays/Makefile
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+++ b/arch/arm/boot/dts/overlays/Makefile
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@@ -115,6 +115,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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mpu6050.dtbo \
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mz61581.dtbo \
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ov5647.dtbo \
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+ ov7251.dtbo \
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ov9281.dtbo \
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papirus.dtbo \
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pibell.dtbo \
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -1813,6 +1813,14 @@ Load: dtoverlay=ov5647
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Params: <None>
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+Name: ov7251
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+Info: Omnivision OV7251 camera module.
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+ Uses Unicam 1, which is the standard camera connector on most Pi
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+ variants.
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+Load: dtoverlay=ov7251
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+Params: <None>
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+
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+
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Name: ov9281
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Info: Omnivision OV9281 camera module.
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Uses Unicam 1, which is the standard camera connector on most Pi
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/ov7251-overlay.dts
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@@ -0,0 +1,111 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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+// Definitions for OV7251 camera module on VC I2C bus
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+/dts-v1/;
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+/plugin/;
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+
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+#include <dt-bindings/gpio/gpio.h>
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+
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+/{
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+ compatible = "brcm,bcm2835";
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+
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+ fragment@0 {
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+ target = <&i2c_csi_dsi>;
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+ __overlay__ {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ status = "okay";
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+
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+ ov7251: ov7251@60 {
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+ compatible = "ovti,ov7251";
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+ reg = <0x60>;
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+ status = "okay";
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+
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+ clocks = <&ov7251_clk>;
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+ clock-names = "xclk";
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+ clock-frequency = <24000000>;
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+
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+ vdddo-supply = <&ov7251_dovdd>;
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+ vdda-supply = <&ov7251_avdd>;
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+ vddd-supply = <&ov7251_dvdd>;
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+
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+ enable-gpios = <&gpio 41 GPIO_ACTIVE_HIGH>;
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+
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+ port {
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+ ov7251_0: endpoint {
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+ remote-endpoint = <&csi1_ep>;
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+ clock-lanes = <0>;
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+ data-lanes = <1>;
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+ clock-noncontinuous;
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+ link-frequencies =
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+ /bits/ 64 <456000000>;
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+ };
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+ };
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+ };
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+ };
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+ };
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+
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+ fragment@1 {
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+ target = <&csi1>;
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+ __overlay__ {
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+ status = "okay";
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+
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+ port {
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+ csi1_ep: endpoint {
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+ remote-endpoint = <&ov7251_0>;
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+ data-lanes = <1>;
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+ };
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+ };
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+ };
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+ };
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+
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+ fragment@2 {
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+ target = <&i2c0if>;
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+ __overlay__ {
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+ status = "okay";
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+ };
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+ };
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+
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+ fragment@3 {
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+ target-path="/";
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+ __overlay__ {
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+ ov7251_avdd: fixedregulator@0 {
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+ compatible = "regulator-fixed";
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+ regulator-name = "ov7251_avdd";
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+ regulator-min-microvolt = <2800000>;
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+ regulator-max-microvolt = <2800000>;
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+ };
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+ ov7251_dovdd: fixedregulator@1 {
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+ compatible = "regulator-fixed";
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+ regulator-name = "ov7251_dovdd";
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+ regulator-min-microvolt = <1800000>;
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+ regulator-max-microvolt = <1800000>;
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+ };
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+ ov7251_dvdd: fixedregulator@2 {
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+ compatible = "regulator-fixed";
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+ regulator-name = "ov7251_dvdd";
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+ regulator-min-microvolt = <1200000>;
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+ regulator-max-microvolt = <1200000>;
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+ };
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+ ov7251_clk: ov7251-clk {
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+ compatible = "fixed-clock";
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+ #clock-cells = <0>;
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+ clock-frequency = <24000000>;
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+ };
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+ };
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+ };
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+
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+ fragment@4 {
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+ target = <&i2c0mux>;
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+ __overlay__ {
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+ status = "okay";
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+ };
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+ };
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+
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+ fragment@5 {
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+ target-path="/__overrides__";
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+ __overlay__ {
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+ cam0-pwdn-ctrl = <&ov7251>,"enable-gpios:0";
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+ cam0-pwdn = <&ov7251>,"enable-gpios:4";
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+ };
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+ };
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+};
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