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150 lines
3.6 KiB
Diff
150 lines
3.6 KiB
Diff
From 89af5d7df7f548744bd675d96295c0f45e24b31f Mon Sep 17 00:00:00 2001
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From: Markus Proeller <markus.proeller@pieye.org>
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Date: Thu, 10 Oct 2019 19:13:02 +0200
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Subject: [PATCH] dtoverlays: Add an overlay for the Infineon IRS1125
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The Infineon IRS1125 is a CSI2 time of flight depth sensor
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which has a suitable V4L2 subdevice driver.
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Add an overlay for configuring it.
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Signed-off-by: Markus Proeller <markus.proeller@pieye.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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.../arm/boot/dts/overlays/irs1125-overlay.dts | 97 +++++++++++++++++++
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3 files changed, 110 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/irs1125-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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@@ -83,6 +83,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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iqaudio-dac.dtbo \
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iqaudio-dacplus.dtbo \
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iqaudio-digi-wm8804-audio.dtbo \
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+ irs1125.dtbo \
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jedec-spi-nor.dtbo \
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justboom-dac.dtbo \
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justboom-digi.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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@@ -1347,6 +1347,18 @@ Params: card_name Override
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dai stream name.
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+Name: irs1125
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+Info: Infineon irs1125 TOF 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=irs1125,<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: jedec-spi-nor
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Info: Adds support for JEDEC-compliant SPI NOR flash devices. (Note: The
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"jedec,spi-nor" kernel driver was formerly known as "m25p80".)
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/irs1125-overlay.dts
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@@ -0,0 +1,97 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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+// Definitions for IRS1125 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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+/{
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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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+ irs1125: irs1125@3D {
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+ compatible = "infineon,irs1125";
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+ reg = <0x3D>;
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+ status = "okay";
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+
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+ pwdn-gpios = <&gpio 5 0>;
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+ clocks = <&irs1125_clk>;
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+
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+ irs1125_clk: camera-clk {
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+ compatible = "fixed-clock";
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+ #clock-cells = <0>;
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+ clock-frequency = <26000000>;
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+ };
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+
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+ port {
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+ irs1125_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 = <&irs1125_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="/__overrides__";
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+ __overlay__ {
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+ cam0-pwdn-ctrl = <&irs1125>,"pwdn-gpios:0";
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+ cam0-pwdn = <&irs1125>,"pwdn-gpios: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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