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sunxi: add csi video support for nanopi-neo-air

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add dtc configuration that declare CSI connection with ov5640

Signed-off-by: Michel Promonet <michel.promonet@free.fr>
Link: https://github.com/openwrt/openwrt/pull/15967
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Michel Promonet 2024-06-23 21:46:46 +02:00 committed by Hauke Mehrtens
parent 13eb1f564a
commit 06b37a5856
1 changed files with 107 additions and 0 deletions
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107
target/linux/sunxi/patches-6.6/451-sunxi-add-csi-video-support-for-nanopi-neo-air.patch Normal file
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@ -0,0 +1,107 @@
From 4c3a3af679bd59660ac80889b560bddaf475ba81 Mon Sep 17 00:00:00 2001
From: Michel Promonet <michel.promonet@free.fr>
Date: Sun, 21 Jul 2024 19:04:19 +0200
Subject: [PATCH] sunxi: add csi video support for nanopi-neo-air
---
.../dts/allwinner/sun8i-h3-nanopi-neo-air.dts | 85 +++++++++++++++++++
1 file changed, 85 insertions(+)
--- a/arch/arm/boot/dts/allwinner/sun8i-h3-nanopi-neo-air.dts
+++ b/arch/arm/boot/dts/allwinner/sun8i-h3-nanopi-neo-air.dts
@@ -77,6 +77,39 @@
compatible = "mmc-pwrseq-simple";
reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>; /* PL7 */
};
+
+ cam_xclk: cam-xclk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <24000000>;
+ clock-output-names = "cam-xclk";
+ };
+
+ reg_cam_avdd: cam-avdd {
+ compatible = "regulator-fixed";
+ regulator-name = "cam-avdd";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ vin-supply = <&reg_vcc3v3>;
+ };
+
+ reg_cam_dovdd: cam-dovdd {
+ compatible = "regulator-fixed";
+ regulator-name = "cam-dovdd";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ vin-supply = <&reg_vcc3v3>;
+ };
+
+ reg_cam_dvdd: cam-dvdd {
+ compatible = "regulator-fixed";
+ regulator-name = "cam-dvdd";
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ vin-supply = <&reg_vcc3v3>;
+ };
+
+
};
&mmc0 {
@@ -141,3 +174,55 @@
/* USB VBUS is always on */
status = "okay";
};
+
+&csi {
+ status = "okay";
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* Parallel bus endpoint */
+ csi_from_ov5640: endpoint {
+ remote-endpoint = <&ov5640_to_csi>;
+ bus-width = <8>;
+ data-shift = <2>;
+ hsync-active = <1>; /* Active high */
+ vsync-active = <0>; /* Active low */
+ data-active = <1>; /* Active high */
+ pclk-sample = <1>; /* Rising */
+ };
+ };
+};
+
+&i2c2 {
+ status = "okay";
+
+ ov5640: camera@3c {
+ compatible = "ovti,ov5640";
+ reg = <0x3c>;
+ clocks = <&cam_xclk>;
+ clock-names = "xclk";
+
+ reset-gpios = <&pio 4 14 GPIO_ACTIVE_LOW>;
+ powerdown-gpios = <&pio 4 15 GPIO_ACTIVE_HIGH>;
+ AVDD-supply = <&reg_cam_avdd>;
+ DOVDD-supply = <&reg_cam_dovdd>;
+ DVDD-supply = <&reg_cam_dvdd>;
+
+ port {
+ ov5640_to_csi: endpoint {
+ remote-endpoint = <&csi_from_ov5640>;
+ bus-width = <8>;
+ data-shift = <2>;
+ hsync-active = <1>; /* Active high */
+ vsync-active = <0>; /* Active low */
+ data-active = <1>; /* Active high */
+ pclk-sample = <1>; /* Rising */
+ };
+ };
+ };
+};
+&i2c2_pins {
+ bias-pull-up;
+};