[linux-sunxi] [DO NOT MERGE] [PATCH v8 5/5] arm64: dts: allwinner: bananapi-m64: Add HDF5640 camera module

[Jagan Teki]

Bananapi M64 comes with an optional sensor based on the ov5640,
add support for it with below pin information.

- PE13, PE12 via i2c-gpio bitbanging
- CLK_CSI_MCLK as external clock
- PE1 as external clock pin muxing
- DLDO3 as AVDD supply
- ALDO1 as DOVDD supply
- ELDO3 as DVDD supply
- PE16 gpio for reset pin
- PE17 gpio for powerdown pin

Signed-off-by: Jagan Teki <ja...@amarulasolutions.com>
---
 .../dts/allwinner/sun50i-a64-bananapi-m64.dts | 65 +++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts 
b/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
index 9d0afd7d50ec..c99f66271287 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
@@ -60,6 +60,41 @@
                stdout-path = "serial0:115200n8";
        };
 
+       i2c-csi {
+               compatible = "i2c-gpio";
+               sda-gpios = <&pio 4 13 GPIO_ACTIVE_HIGH>; /* CSI0-SDA: PE13 */
+               scl-gpios = <&pio 4 12 GPIO_ACTIVE_HIGH>; /* CSI0-SCK: PE12 */
+               i2c-gpio,delay-us = <5>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               ov5640: camera@3c {
+                       compatible = "ovti,ov5640";
+                       reg = <0x3c>;
+                       pinctrl-names = "default";
+                       pinctrl-0 = <&csi_mclk_pin>;
+                       clocks = <&ccu CLK_CSI_MCLK>;
+                       clock-names = "xclk";
+
+                       AVDD-supply = <&reg_dldo3>;
+                       DOVDD-supply = <&reg_aldo1>;
+                       DVDD-supply = <&reg_eldo3>;
+                       reset-gpios = <&pio 4 16 GPIO_ACTIVE_LOW>; /* CSI0-RST: 
PE16 */
+                       powerdown-gpios = <&pio 4 17 GPIO_ACTIVE_HIGH>; /* 
CSI0-PWDN: PE17 */
+
+                       port {
+                               ov5640_ep: endpoint {
+                                       remote-endpoint = <&csi_ep>;
+                                       bus-width = <8>;
+                                       hsync-active = <1>; /* Active high */
+                                       vsync-active = <0>; /* Active low */
+                                       data-active = <1>;  /* Active high */
+                                       pclk-sample = <1>;  /* Rising */
+                               };
+                       };
+               };
+       };
+
        hdmi-connector {
                compatible = "hdmi-connector";
                type = "a";
@@ -108,6 +143,24 @@
        status = "okay";
 };
 
+&csi {
+       status = "okay";
+
+       port {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               csi_ep: endpoint {
+                       remote-endpoint = <&ov5640_ep>;
+                       bus-width = <8>;
+                       hsync-active = <1>; /* Active high */
+                       vsync-active = <0>; /* Active low */
+                       data-active = <1>;  /* Active high */
+                       pclk-sample = <1>;  /* Rising */
+               };
+       };
+};
+
 &dai {
        status = "okay";
 };
@@ -298,6 +351,12 @@
        regulator-name = "vcc-wifi";
 };
 
+&reg_dldo3 {
+       regulator-min-microvolt = <2800000>;
+       regulator-max-microvolt = <2800000>;
+       regulator-name = "avdd-csi";
+};
+
 &reg_dldo4 {
        regulator-min-microvolt = <1800000>;
        regulator-max-microvolt = <3300000>;
@@ -315,6 +374,12 @@
        regulator-name = "cpvdd";
 };
 
+&reg_eldo3 {
+       regulator-min-microvolt = <1500000>;
+       regulator-max-microvolt = <1500000>;
+       regulator-name = "dvdd-csi";
+};
+
 &reg_fldo1 {
        regulator-min-microvolt = <1200000>;
        regulator-max-microvolt = <1200000>;
-- 
2.18.0.321.gffc6fa0e3

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