[PATCH 5/6] [DO NOT MERGE] ARM: dts: sunxi: bananapi-m2p: Add HDF5640 camera module

[Chen-Yu Tsai]

The Bananapi M2+ comes with an optional sensor based on the ov5640 from
Omnivision. Enable the support for it in the DT.

Signed-off-by: Chen-Yu Tsai <w...@csie.org>
---
 arch/arm/boot/dts/sunxi-bananapi-m2-plus.dtsi | 87 +++++++++++++++++++
 1 file changed, 87 insertions(+)

diff --git a/arch/arm/boot/dts/sunxi-bananapi-m2-plus.dtsi 
b/arch/arm/boot/dts/sunxi-bananapi-m2-plus.dtsi
index b3283aeb5b7d..d97a98acf378 100644
--- a/arch/arm/boot/dts/sunxi-bananapi-m2-plus.dtsi
+++ b/arch/arm/boot/dts/sunxi-bananapi-m2-plus.dtsi
@@ -89,6 +89,42 @@
                };
        };
 
+       reg_cam_avdd: cam-avdd {
+               compatible = "regulator-fixed";
+               regulator-name = "csi-avdd";
+               regulator-min-microvolt = <2800000>;
+               regulator-max-microvolt = <2800000>;
+               startup-delay-us = <200>; /* 50 us + board delays */
+               enable-active-high;
+               gpio = <&pio 3 14 GPIO_ACTIVE_HIGH>; /* PD14 */
+       };
+
+       reg_cam_dovdd: cam-dovdd {
+               compatible = "regulator-fixed";
+               regulator-name = "csi-dovdd";
+               regulator-min-microvolt = <2800000>;
+               regulator-max-microvolt = <2800000>;
+               /*
+                * This regulator also powers the pull-ups for the I2C bus.
+                * For some reason, if this is turned off, subsequent use
+                * of the I2C bus, even when turned on, does not work.
+                */
+               startup-delay-us = <200>; /* 50 us + board delays */
+               regulator-always-on;
+               enable-active-high;
+               gpio = <&pio 3 14 GPIO_ACTIVE_HIGH>; /* PD14 */
+       };
+
+       reg_cam_dvdd: cam-dvdd {
+               compatible = "regulator-fixed";
+               regulator-name = "csi-dvdd";
+               regulator-min-microvolt = <1500000>;
+               regulator-max-microvolt = <1500000>;
+               startup-delay-us = <200>; /* 50 us + board delays */
+               enable-active-high;
+               gpio = <&pio 3 14 GPIO_ACTIVE_HIGH>; /* PD14 */
+       };
+
        reg_gmac_3v3: gmac-3v3 {
                      compatible = "regulator-fixed";
                      regulator-name = "gmac-3v3";
@@ -106,6 +142,26 @@
        };
 };
 
+&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 */
+               };
+       };
+};
+
 &de {
        status = "okay";
 };
@@ -149,6 +205,37 @@
        };
 };
 
+&i2c2 {
+       status = "okay";
+
+       ov5640: camera@3c {
+               compatible = "ovti,ov5640";
+               reg = <0x3c>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&csi_mclk_pin>;
+               clocks = <&ccu CLK_CSI_MCLK>;
+               clock-names = "xclk";
+
+               reset-gpios = <&pio 4 14 GPIO_ACTIVE_LOW>; /* PE14 */
+               powerdown-gpios = <&pio 4 15 GPIO_ACTIVE_HIGH>; /* PE15 */
+               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 */
+                       };
+               };
+       };
+};
+
 &ir {
        pinctrl-names = "default";
        pinctrl-0 = <&ir_pins_a>;
-- 
2.20.0.rc1