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181 lines
4.4 KiB
Diff
181 lines
4.4 KiB
Diff
From 7a4d12054b24c8cb980be4c6466b50c14beb78d3 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.org>
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Date: Wed, 28 Aug 2019 13:35:19 +0100
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Subject: [PATCH] dtoverlays: Add overlay for the Sony IMX219 image
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sensor.
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Adds an overlay for the IMX219 image sensor, connected to the
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Unicam CSI2 receiver peripheral.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
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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 | 12 ++
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arch/arm/boot/dts/overlays/imx219-overlay.dts | 129 ++++++++++++++++++
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3 files changed, 142 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/imx219-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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@@ -77,6 +77,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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i2c6.dtbo \
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i2s-gpio28-31.dtbo \
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ilitek251x.dtbo \
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+ imx219.dtbo \
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iqaudio-codec.dtbo \
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iqaudio-dac.dtbo \
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iqaudio-dacplus.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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@@ -1269,6 +1269,18 @@ Params: interrupt GPIO use
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touchscreen (in pixels)
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+Name: imx219
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+Info: Sony IMX219 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=imx219,<param>=<val>
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+Params: i2c_pins_0_1 Use pins 0&1 for the I2C instead of 44&45.
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+ Useful on Compute Modules.
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+
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+ i2c_pins_28_29 Use pins 28&29 for the I2C instead of 44&45.
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+ This is required for Pi B+, 2, 0, and 0W.
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+
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+
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Name: iqaudio-codec
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Info: Configures the IQaudio Codec audio card
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Load: dtoverlay=iqaudio-codec
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/imx219-overlay.dts
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@@ -0,0 +1,129 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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+// Definitions for IMX219 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_vc>;
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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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+ imx219: imx219@10 {
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+ compatible = "sony,imx219";
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+ reg = <0x10>;
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+ status = "okay";
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+
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+ clocks = <&imx219_clk>;
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+ clock-names = "xclk";
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+
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+ VANA-supply = <&imx219_vana>; /* 2.8v */
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+ VDIG-supply = <&imx219_vdig>; /* 1.8v */
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+ VDDL-supply = <&imx219_vddl>; /* 1.2v */
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+
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+ imx219_clk: camera-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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+ port {
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+ imx219_0: endpoint {
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+ remote-endpoint = <&csi1_ep>;
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+ clock-lanes = <0>;
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+ data-lanes = <1 2>;
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+ clock-noncontinuous;
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+ link-frequencies =
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+ /bits/ 64 <297000000>;
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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 = <&imx219_0>;
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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 = <&i2c0_pins>;
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+ __dormant__ {
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+ brcm,pins = <28 29>;
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+ brcm,function = <4>; /* alt0 */
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+ };
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+ };
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+ fragment@3 {
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+ target = <&i2c0_pins>;
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+ __overlay__ {
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+ brcm,pins = <44 45>;
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+ brcm,function = <5>; /* alt1 */
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+ };
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+ };
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+ fragment@4 {
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+ target = <&i2c0_pins>;
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+ __dormant__ {
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+ brcm,pins = <0 1>;
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+ brcm,function = <4>; /* alt0 */
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+ };
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+ };
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+ fragment@5 {
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+ target = <&i2c_vc>;
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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@6 {
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+ target-path="/";
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+ __overlay__ {
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+ imx219_vana: fixedregulator@0 {
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+ compatible = "regulator-fixed";
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+ regulator-name = "imx219_vana";
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+ regulator-min-microvolt = <2800000>;
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+ regulator-max-microvolt = <2800000>;
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+ gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
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+ enable-active-high;
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+ };
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+ imx219_vdig: fixedregulator@1 {
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+ compatible = "regulator-fixed";
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+ regulator-name = "imx219_vdig";
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+ regulator-min-microvolt = <1800000>;
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+ regulator-max-microvolt = <1800000>;
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+ };
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+ imx219_vddl: fixedregulator@2 {
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+ compatible = "regulator-fixed";
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+ regulator-name = "imx219_vddl";
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+ regulator-min-microvolt = <1200000>;
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+ regulator-max-microvolt = <1200000>;
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+ };
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+ };
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+ };
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+
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+ fragment@7 {
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+ target-path="/__overrides__";
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+ __overlay__ {
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+ cam0-pwdn-ctrl = <&imx219_vana>,"gpio:0";
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+ cam0-pwdn = <&imx219_vana>,"gpio:4";
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+ };
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+ };
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+
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+ __overrides__ {
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+ i2c_pins_0_1 = <0>,"-2-3+4";
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+ i2c_pins_28_29 = <0>,"+2-3-4";
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+ };
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+};
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