From 6aca83a0a80195005057b56b9f1d9ae6c41620b9 Mon Sep 17 00:00:00 2001
From: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Date: Wed, 14 May 2025 18:24:20 +0200
Subject: [PATCH] arm64: dts: renesas: r9a09g047e57-smarc: Enable CRU, CSI
 support

Enable CRU, I2C0 and CSI on RZ/G3E SMARC EVK and tie the CSI to the
OV5645 sensor using Device Tree overlay.  RZ/G3E SMARK EVK is a RZ/G2L
alike EVK hence reuse rz-smarc-cru-csi-ov5645.dtsi.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250514162422.910114-5-tommaso.merciai.xr@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm64/boot/dts/renesas/Makefile          |  3 +++
 .../r9a09g047e57-smarc-cru-csi-ov5645.dtso    | 21 +++++++++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-cru-csi-ov5645.dtso

diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
index aa7f996c0546c..677ba3aa89317 100644
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -156,6 +156,9 @@ dtb-$(CONFIG_ARCH_R9A08G045) += r9a08g045s33-smarc-pmod1-type-3a.dtb
 dtb-$(CONFIG_ARCH_R9A09G011) += r9a09g011-v2mevk2.dtb
 
 dtb-$(CONFIG_ARCH_R9A09G047) += r9a09g047e57-smarc.dtb
+dtb-$(CONFIG_ARCH_R9A09G047) += r9a09g047e57-smarc-cru-csi-ov5645.dtbo
+r9a09g047e57-smarc-cru-csi-ov5645-dtbs := r9a09g047e57-smarc.dtb r9a09g047e57-smarc-cru-csi-ov5645.dtbo
+dtb-$(CONFIG_ARCH_R9A09G047) += r9a09g047e57-smarc-cru-csi-ov5645.dtb
 
 dtb-$(CONFIG_ARCH_R9A09G056) += r9a09g056n48-rzv2n-evk.dtb
 
diff --git a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-cru-csi-ov5645.dtso b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-cru-csi-ov5645.dtso
new file mode 100644
index 0000000000000..0f18f68f81208
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-cru-csi-ov5645.dtso
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree overlay for the RZ/G3E SMARC EVK with OV5645 camera
+ * connected to CSI and CRU enabled.
+ *
+ * Copyright (C) 2025 Renesas Electronics Corp.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/renesas,r9a09g047-pinctrl.h>
+
+#define OV5645_PARENT_I2C i2c0
+#include "rz-smarc-cru-csi-ov5645.dtsi"
+
+&ov5645 {
+	enable-gpios = <&pinctrl RZG3E_GPIO(D, 6) GPIO_ACTIVE_HIGH>;
+	reset-gpios = <&pinctrl RZG3E_GPIO(D, 7) GPIO_ACTIVE_LOW>;
+};
-- 
2.47.2