arm64: dts: ti: k3-am625-beagleplay: Add overlays for OV5640

Three different OV5640 modules are supported using the FFC connector on
BeaglePlay:
- Digilent PCam 5C
- ALINX AN5641
- TEVI-OV5640-*-RPI

The Digilent and ALINX modules supply a 12Mhz XCLK to the sensor, while
the TEVI module supplies a 24Mhz XCLK, thus requiring a separate
overlay.

Reviewed-by: Andrew Davis <afd@ti.com>
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Link: https://lore.kernel.org/r/20231201-csi_dts-v3-4-9f06f31080fe@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 77a347f9f47d575be11fd4a1c720825532c3a874..c6c7825b4cb2670d8fca1db3ff35a69ce02ec0a9 100644 (file)
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -12,6 +12,8 @@
 k3-am625-sk-hdmi-audio-dtbs := k3-am625-sk.dtb k3-am62x-sk-hdmi-audio.dtbo
 k3-am62-lp-sk-hdmi-audio-dtbs := k3-am62-lp-sk.dtb k3-am62x-sk-hdmi-audio.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am625-beagleplay.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am625-beagleplay-csi2-ov5640.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am625-beagleplay-csi2-tevi-ov5640.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am625-phyboard-lyra-rdk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am625-sk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-dahlia.dtb
@@ -80,7 +82,16 @@ dtb-$(CONFIG_ARCH_K3) += k3-j721s2-evm.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am69-sk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm.dtb
 
+# Build time test only, enabled by CONFIG_OF_ALL_DTBS
+k3-am625-beagleplay-csi2-ov5640-dtbs := k3-am625-beagleplay.dtb \
+       k3-am625-beagleplay-csi2-ov5640.dtbo
+k3-am625-beagleplay-csi2-tevi-ov5640-dtbs := k3-am625-beagleplay.dtb \
+       k3-am625-beagleplay-csi2-tevi-ov5640.dtbo
+dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
+       k3-am625-beagleplay-csi2-tevi-ov5640.dtb
+
 # Enable support for device-tree overlays
+DTC_FLAGS_k3-am625-beagleplay += -@
 DTC_FLAGS_k3-am625-sk += -@
 DTC_FLAGS_k3-am62-lp-sk += -@
 DTC_FLAGS_k3-am6548-iot2050-advanced-m2 += -@

diff --git a/arch/arm64/boot/dts/ti/k3-am625-beagleplay-csi2-ov5640.dtso b/arch/arm64/boot/dts/ti/k3-am625-beagleplay-csi2-ov5640.dtso
new file mode 100644 (file)
index 0000000..5e80ca7
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am625-beagleplay-csi2-ov5640.dtso
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ALINX AN5641 & Digilent PCam 5C - OV5640 camera module
+ * Copyright (C) 2022-2023 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+&{/} {
+       clk_ov5640_fixed: ov5640-xclk {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <12000000>;
+       };
+};
+
+&main_gpio0 {
+       p11-hog {
+               /* P11 - CSI2_CAMERA_GPIO1 */
+               gpio-hog;
+               gpios = <11 GPIO_ACTIVE_HIGH>;
+               output-high;
+               line-name = "CSI2_CAMERA_GPIO1";
+       };
+};
+
+&wkup_i2c0 {
+       #address-cells = <1>;
+       #size-cells = <0>;
+       status = "okay";
+
+       ov5640: camera@3c {
+               compatible = "ovti,ov5640";
+               reg = <0x3c>;
+
+               clocks = <&clk_ov5640_fixed>;
+               clock-names = "xclk";
+
+               port {
+                       csi2_cam0: endpoint {
+                               remote-endpoint = <&csi2rx0_in_sensor>;
+                               clock-lanes = <0>;
+                               data-lanes = <1 2>;
+                       };
+               };
+       };
+};
+
+&cdns_csi2rx0 {
+       ports {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               csi0_port0: port@0 {
+                       reg = <0>;
+                       status = "okay";
+
+                       csi2rx0_in_sensor: endpoint {
+                               remote-endpoint = <&csi2_cam0>;
+                               bus-type = <4>; /* CSI2 DPHY. */
+                               clock-lanes = <0>;
+                               data-lanes = <1 2>;
+                       };
+               };
+       };
+};
+
+&dphy0 {
+       status = "okay";
+};
+
+&ti_csi2rx0 {
+       status = "okay";
+};

diff --git a/arch/arm64/boot/dts/ti/k3-am625-beagleplay-csi2-tevi-ov5640.dtso b/arch/arm64/boot/dts/ti/k3-am625-beagleplay-csi2-tevi-ov5640.dtso
new file mode 100644 (file)
index 0000000..5e1cbbc
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am625-beagleplay-csi2-tevi-ov5640.dtso
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Technexion TEVI-OV5640-*-RPI - OV5640 camera module
+ * Copyright (C) 2022-2023 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+&{/} {
+       clk_ov5640_fixed: ov5640-xclk {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <24000000>;
+       };
+};
+
+&main_gpio0 {
+       p11-hog {
+               /* P11 - CSI2_CAMERA_GPIO1 */
+               gpio-hog;
+               gpios = <11 GPIO_ACTIVE_HIGH>;
+               output-high;
+               line-name = "CSI2_CAMERA_GPIO1";
+       };
+};
+
+&wkup_i2c0 {
+       #address-cells = <1>;
+       #size-cells = <0>;
+       status = "okay";
+
+       ov5640: camera@3c {
+               compatible = "ovti,ov5640";
+               reg = <0x3c>;
+
+               clocks = <&clk_ov5640_fixed>;
+               clock-names = "xclk";
+
+               port {
+                       csi2_cam0: endpoint {
+                               remote-endpoint = <&csi2rx0_in_sensor>;
+                               clock-lanes = <0>;
+                               data-lanes = <1 2>;
+                       };
+               };
+       };
+};
+
+&cdns_csi2rx0 {
+       ports {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               csi0_port0: port@0 {
+                       reg = <0>;
+                       status = "okay";
+
+                       csi2rx0_in_sensor: endpoint {
+                               remote-endpoint = <&csi2_cam0>;
+                               bus-type = <4>; /* CSI2 DPHY. */
+                               clock-lanes = <0>;
+                               data-lanes = <1 2>;
+                       };
+               };
+       };
+};
+
+&dphy0 {
+       status = "okay";
+};
+
+&ti_csi2rx0 {
+       status = "okay";
+};