According to v4l2 dt document, we add:
a camera host: ISI port.
a i2c camera sensor: ov2640 port.
to sama5d3xmb.dtsi.
The ov2640 node defines the pinctrls, clocks and refer to isi port.
The ISI node also has a reference to the ov2640 port.
Signed-off-by: Josh Wu <josh.wu@xxxxxxxxx>
---
v1 -> v2:
1. move the chip common part of ISI DT node to sama5d3.dtsi.
2. the pck1 pinctrl name is changed.
arch/arm/boot/dts/sama5d3.dtsi | 6 ++++++
arch/arm/boot/dts/sama5d3xmb.dtsi | 31 +++++++++++++++++++++++++++++--
2 files changed, 35 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/sama5d3.dtsi b/arch/arm/boot/dts/sama5d3.dtsi
index ed734e9..af61d55 100644
--- a/arch/arm/boot/dts/sama5d3.dtsi
+++ b/arch/arm/boot/dts/sama5d3.dtsi
@@ -214,9 +214,15 @@
compatible = "atmel,at91sam9g45-isi";
reg = <0xf0034000 0x4000>;
interrupts = <37 IRQ_TYPE_LEVEL_HIGH 5>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_isi_data_0_7>;
clocks = <&isi_clk>;
clock-names = "isi_clk";
status = "disabled";
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
};
mmc1: mmc@f8000000 {
diff --git a/arch/arm/boot/dts/sama5d3xmb.dtsi b/arch/arm/boot/dts/sama5d3xmb.dtsi
index d9464fc..9fdb8a0 100644
--- a/arch/arm/boot/dts/sama5d3xmb.dtsi
+++ b/arch/arm/boot/dts/sama5d3xmb.dtsi
@@ -52,6 +52,29 @@
};
};
+ i2c1: i2c@f0018000 {
+ ov2640: camera@0x30 {
+ compatible = "ovti,ov2640";
+ reg = <0x30>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pck1_as_isi_mck &pinctrl_sensor_power &pinctrl_sensor_reset>;
+ resetb-gpios = <&pioE 24 GPIO_ACTIVE_LOW>;
+ pwdn-gpios = <&pioE 29 GPIO_ACTIVE_HIGH>;
+ /* use pck1 for the master clock of ov2640 */
+ clocks = <&pck1>;
+ clock-names = "xvclk";
+ assigned-clocks = <&pck1>;
+ assigned-clock-rates = <25000000>;
+
+ port {
+ ov2640_0: endpoint {
+ remote-endpoint = <&isi_0>;
+ bus-width = <8>;
+ };
+ };
+ };
+ };
+
usart1: serial@f0020000 {
dmas = <0>, <0>; /* Do not use DMA for usart1 */
pinctrl-names = "default";
@@ -60,8 +83,12 @@
};
isi: isi@f0034000 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_isi_data_0_7>;
+ port {
+ isi_0: endpoint {
+ remote-endpoint = <&ov2640_0>;
+ bus-width = <8>;
+ };
+ };
};
mmc1: mmc@f8000000 {
--
1.9.1
--
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