[PATCH 7/7] [NOT FOR MERGE] ARM: dts: sun8i: a83t: bananapi-m3: Enable OV8865 camera

Kévin L'hôpital
2020-08-21T15:02:20Z

The Bananapi M3 supports a camera module which includes an
OV8865 sensor connected via the parallel CSI interface and
an OV8865 sensor connected via MIPI CSI-2.

The I2C2 bus is shared by the two sensors as well as active-low
reset signal but each sensor has it own shutdown line.

The I2c address for the OV8865 is 0x36.

The bus type is hardcoded to 4 due to the lack of available
define usable in the device-tree.

Signed-off-by: Kévin L'hôpital <kevin.lhopital@bootlin.com>
---
arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts | 99 ++++++++++++++++++++
1 file changed, 99 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
index 9d34eabba121..f7839094695e 100644
--- a/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
+++ b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
@@ -85,6 +85,38 @@
};
};

+ reg_ov8865_avdd: ov8865-avdd {
+ compatible = "regulator-fixed";
+ regulator-name = "ov8865-avdd";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ vin-supply = <&reg_dldo4>;
+ };
+
+ reg_ov8865_dovdd: ov8865-dovdd {
+ compatible = "regulator-fixed";
+ regulator-name = "ov8865-dovdd";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ vin-supply = <&reg_dldo4>;
+ };
+
+ reg_ov8865_afvdd: ov8865-afvdd {
+ compatible = "regulator-fixed";
+ regulator-name = "ov8865-afvdd";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ vin-supply = <&reg_dldo4>;
+ };
+
+ reg_ov8865_vdd2: ov8865-vdd2 {
+ compatible = "regulator-fixed";
+ regulator-name = "ov8865-vdd2";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ vin-supply = <&reg_eldo1>;
+ };
+
reg_usb1_vbus: reg-usb1-vbus {
compatible = "regulator-fixed";
regulator-name = "usb1-vbus";
@@ -115,10 +147,59 @@
cpu-supply = <&reg_dcdc3>;
};

+&ccu {
+ assigned-clocks = <&ccu CLK_CSI_MCLK>;
+ assigned-clock-parents = <&osc24M>;
+ assigned-clock-rates = <24000000>;
+};
+
+&csi {
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&csi_in {
+ mipi_csi2_from_ov8865: endpoint {
+ remote-endpoint = <&ov8865_to_mipi_csi2>;
+ clock-lanes = <0>;
+ data-lanes = <1 2 3 4>;
+ bus-type = <4>;
+ };
+};
+
&de {
status = "okay";
};

+&i2c2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_pe_pins>;
+ status = "okay";
+
+ ov8865: camera@36 {
+ compatible = "ovti,ov8865";
+ reg = <0x36>;
+ clocks = <&ccu CLK_CSI_MCLK>;
+ clock-names ="xclk";
+ AVDD-supply = <&reg_ov8865_avdd>;
+ DOVDD-supply = <&reg_ov8865_dovdd>;
+ VDD2-supply = <&reg_ov8865_vdd2>;
+ AFVDD-supply = <&reg_ov8865_afvdd>;
+ powerdown-gpios = <&pio 4 17 GPIO_ACTIVE_LOW>; /* PE17 */
+ reset-gpios = <&pio 4 16 GPIO_ACTIVE_LOW>; /* PE16 */
+ rotation = <180>;
+
+ port {
+ ov8865_to_mipi_csi2: endpoint {
+ remote-endpoint = <&mipi_csi2_from_ov8865>;
+ data-lanes = <1 2 3 4>;
+ clock-lanes = <0>;
+ bus-type = <4>; /* V4L2_FWNODE_BUS_TYPE_CSI2_DPHY */
+ };
+ };
+ };
+};
+
&ehci0 {
/* Terminus Tech FE 1.1s 4-port USB 2.0 hub here */
status = "okay";
@@ -191,6 +272,11 @@
status = "okay";
};

+&pio {
+ pinctrl-names = "default";
+ pinctrl-0 = <&csi_mclk_pin>;
+};
+
&r_cir {
clock-frequency = <3000000>;
status = "okay";
@@ -327,11 +413,24 @@
regulator-name = "vcc-pd";
};

+&reg_dldo4 {
+ regulator-always-on;
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-name = "avdd-csi";
+};
+
&reg_drivevbus {
regulator-name = "usb0-vbus";
status = "okay";
};

+&reg_eldo1 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-name = "dvdd-csi-r";
+};
+
&reg_fldo1 {
regulator-min-microvolt = <1080000>;
regulator-max-microvolt = <1320000>;
--
2.17.1