arm64: dts: renesas: rzg2l-smarc: Enable CRU, CSI support

Enable CRU, CSI on RZ/G2L SMARC EVK and tie the CSI to OV5645 sensor
using Device Tree overlay. rz-smarc-cru-csi-ov5645.dtsi is created so
that RZ/G2L alike EVKs can make use of it.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230322125648.24948-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
index d1f10ae85f9f789df581ddbb67cec9a0156ce7cd..f130165577a83cee9a3aec5db56798d05124c5b8 100644 (file)
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -80,6 +80,7 @@ dtb-$(CONFIG_ARCH_R9A07G043) += r9a07g043-smarc-pmod.dtbo
 
 dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044c2-smarc.dtb
 dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-smarc.dtb
+dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-smarc-cru-csi-ov5645.dtbo
 
 dtb-$(CONFIG_ARCH_R9A07G054) += r9a07g054l2-smarc.dtb
 

diff --git a/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc-cru-csi-ov5645.dtso b/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc-cru-csi-ov5645.dtso
new file mode 100644 (file)
index 0000000..d834bff
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc-cru-csi-ov5645.dtso
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree overlay for the RZ/G2L SMARC EVK with OV5645 camera
+ * connected to CSI and CRU enabled.
+ *
+ * Copyright (C) 2023 Renesas Electronics Corp.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
+
+#define OV5645_PARENT_I2C i2c0
+#include "rz-smarc-cru-csi-ov5645.dtsi"
+
+&ov5645 {
+       enable-gpios = <&pinctrl RZG2L_GPIO(2, 0) GPIO_ACTIVE_HIGH>;
+       reset-gpios = <&pinctrl RZG2L_GPIO(40, 2) GPIO_ACTIVE_LOW>;
+};

diff --git a/arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi b/arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi
new file mode 100644 (file)
index 0000000..c5bb63c
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/rz-smarc-cru-csi-ov5645.dtsi
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Common Device Tree for the RZ/G2L SMARC EVK (and alike EVKs) with
+ * OV5645 camera connected to CSI and CRU enabled.
+ *
+ * Copyright (C) 2023 Renesas Electronics Corp.
+ */
+
+&{/} {
+       ov5645_vdddo_1v8: 1p8v {
+               compatible = "regulator-fixed";
+               regulator-name = "camera_vdddo";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               regulator-always-on;
+       };
+
+       ov5645_vdda_2v8: 2p8v {
+               compatible = "regulator-fixed";
+               regulator-name = "camera_vdda";
+               regulator-min-microvolt = <2800000>;
+               regulator-max-microvolt = <2800000>;
+               regulator-always-on;
+       };
+
+       ov5645_vddd_1v5: 1p5v {
+               compatible = "regulator-fixed";
+               regulator-name = "camera_vddd";
+               regulator-min-microvolt = <1500000>;
+               regulator-max-microvolt = <1500000>;
+               regulator-always-on;
+       };
+
+       ov5645_fixed_clk: osc25250-clk {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <24000000>;
+       };
+};
+
+&cru {
+       status = "okay";
+};
+
+&csi2 {
+       status = "okay";
+
+       ports {
+               port@0 {
+                       csi2_in: endpoint {
+                               clock-lanes = <0>;
+                               data-lanes = <1 2>;
+                               remote-endpoint = <&ov5645_ep>;
+                       };
+               };
+       };
+};
+
+&OV5645_PARENT_I2C {
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       ov5645: camera@3c {
+               compatible = "ovti,ov5645";
+               reg = <0x3c>;
+               clocks = <&ov5645_fixed_clk>;
+               clock-frequency = <24000000>;
+               vdddo-supply = <&ov5645_vdddo_1v8>;
+               vdda-supply = <&ov5645_vdda_2v8>;
+               vddd-supply = <&ov5645_vddd_1v5>;
+
+               port {
+                       ov5645_ep: endpoint {
+                               clock-lanes = <0>;
+                               data-lanes = <1 2>;
+                               remote-endpoint = <&csi2_in>;
+                       };
+               };
+       };
+};