[PATCH 5/5] arm64: dts: allwinner: a64-amarula-relic: Add OV5640 camera node

[Jagan Teki]

Amarula A64-Relic board by default bound with OV5640 camera,
so 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 vcc-csi supply
- DLDO3 as AVDD supply
- ALDO1 as DOVDD supply
- ELDO3 as DVDD supply
- PE14 gpio for reset pin
- PE15 gpio for powerdown pin

Signed-off-by: Jagan Teki <ja...@amarulasolutions.com>
---
 .../allwinner/sun50i-a64-amarula-relic.dts    | 54 +++++++++++++++++++
 arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi |  5 ++
 2 files changed, 59 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts 
b/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
index 6cb2b7f0c817..9ac6d773188b 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
@@ -22,6 +22,41 @@
                stdout-path = "serial0:115200n8";
        };
 
+       i2c-csi {
+               compatible = "i2c-gpio";
+               sda-gpios = <&pio 4 13 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+               scl-gpios = <&pio 4 12 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+               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 14 GPIO_ACTIVE_LOW>; /* 
CSI-RST-R: PE14 */
+                       powerdown-gpios = <&pio 4 15 GPIO_ACTIVE_HIGH>; /* 
CSI-STBY-R: PE15 */
+
+                       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 */
+                               };
+                       };
+               };
+       };
+
        wifi_pwrseq: wifi-pwrseq {
                compatible = "mmc-pwrseq-simple";
                clocks = <&rtc 1>;
@@ -30,6 +65,25 @@
        };
 };
 
+&csi {
+       vcc-csi-supply = <&reg_dldo3>;
+       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 */
+               };
+       };
+};
+
 &ehci0 {
        status = "okay";
 };
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi 
b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index d32ff694ac5c..844bb44a78af 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -538,6 +538,11 @@
                                function = "csi0";
                        };
 
+                       csi_mclk_pin: csi-mclk {
+                               pins = "PE1";
+                               function = "csi0";
+                       };
+
                        i2c0_pins: i2c0_pins {
                                pins = "PH0", "PH1";
                                function = "i2c0";
-- 
2.18.0.321.gffc6fa0e3