Enable OV5640 camera sensor driver of MB1379A extension
board connected on CN7 connector of stm32mp157c-ev1 board:
bus-width is set to 8, data-shift is set to 2 (lines 9:2 are used),
hsync-active is set to 0 for horizontal synchro line active low,
vsync-active is set to 0 for vertical synchro line active low and
pclk-sample is set to 1 for pixel clock polarity sampling data
on rising edge of the pixel clock signal.
Signed-off-by: Hugues Fruchet <hugues.fruchet@xxxxxx>
---
arch/arm/boot/dts/stm32mp157c-ev1.dts | 56 +++++++++++++++++++++++++++++++++++
1 file changed, 56 insertions(+)
diff --git a/arch/arm/boot/dts/stm32mp157c-ev1.dts b/arch/arm/boot/dts/stm32mp157c-ev1.dts
index 009f9d6..8fb1688 100644
--- a/arch/arm/boot/dts/stm32mp157c-ev1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ev1.dts
@@ -65,6 +65,14 @@
default-on;
status = "okay";
};
+
+ clocks {
+ clk_ext_camera: clk-ext-camera {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <24000000>;
+ };
+ };
};
&cec {
@@ -73,6 +81,23 @@
status = "okay";
};
+&dcmi {
+ status = "okay";
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&dcmi_pins_a>;
+ pinctrl-1 = <&dcmi_sleep_pins_a>;
+
+ port {
+ dcmi_0: endpoint {
+ remote-endpoint = <&ov5640_0>;
+ bus-width = <8>;
+ hsync-active = <0>;
+ vsync-active = <0>;
+ pclk-sample = <1>;
+ };
+ };
+};
+
&dsi {
#address-cells = <1>;
#size-cells = <0>;
@@ -138,6 +163,31 @@
i2c-scl-falling-time-ns = <20>;
status = "okay";
+ ov5640: camera@3c {
+ compatible = "ovti,ov5640";
+ pinctrl-names = "default";
+ pinctrl-0 = <&ov5640_pins>;
+ reg = <0x3c>;
+ clocks = <&clk_ext_camera>;
+ clock-names = "xclk";
+ DOVDD-supply = <&v2v8>;
+ powerdown-gpios = <&stmfx_pinctrl 18 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&stmfx_pinctrl 19 GPIO_ACTIVE_LOW>;
+ rotation = <180>;
+ status = "okay";
+
+ port {
+ ov5640_0: endpoint {
+ remote-endpoint = <&dcmi_0>;
+ bus-width = <8>;
+ data-shift = <2>; /* lines 9:2 are used */
+ hsync-active = <0>;
+ vsync-active = <0>;
+ pclk-sample = <1>;
+ };
+ };
+ };
+
stmfx: stmfx@42 {
compatible = "st,stmfx-0300";
reg = <0x42>;
@@ -157,6 +207,12 @@
drive-push-pull;
bias-pull-down;
};
+
+ ov5640_pins: camera {
+ pins = "agpio2", "agpio3"; /* stmfx pins 18 & 19 */
+ drive-push-pull;
+ output-low;
+ };
};
};
};
--
2.7.4
