Below is the diff which I used to get OV5640 working in 4.14 branch of Qcom kernel.
diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
index c99fc9a..a7293b4 100644
--- a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
@@ -361,9 +361,9 @@
cci@1b0c000 {
status = "ok";
- camera_rear@3b {
- compatible = "ovti,ov5645";
- reg = <0x3b>;
+ camera_rear@78 {
+ compatible = "ovti,ov5640";
+ reg = <0x78>;
enable-gpios = <&msmgpio 34 GPIO_ACTIVE_HIGH>;
reset-gpios = <&msmgpio 35 GPIO_ACTIVE_LOW>;
@@ -378,10 +378,8 @@
vdda-supply = <&camera_vdda_2v8>;
vddd-supply = <&camera_vddd_1v5>;
- status = "disabled";
-
port {
- ov5645_ep: endpoint {
+ ov5640_ep: endpoint {
clock-lanes = <1>;
data-lanes = <0 2>;
remote-endpoint = <&csiphy0_ep>;
@@ -428,8 +426,7 @@
csiphy0_ep: endpoint {
clock-lanes = <1>;
data-lanes = <0 2>;
- remote-endpoint = <&ov5645_ep>;
- status = "disabled";
+ remote-endpoint = <&ov5640_ep>;
};
};
port@1 {
diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
index 39a2269..56e143a 100644
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -162,6 +162,7 @@ struct ov5640_ctrls {
struct v4l2_ctrl *auto_gain;
struct v4l2_ctrl *gain;
};
+ struct v4l2_ctrl *pixel_clock;
struct v4l2_ctrl *brightness;
struct v4l2_ctrl *saturation;
struct v4l2_ctrl *contrast;
@@ -2009,6 +2010,9 @@ static int ov5640_init_controls(struct ov5640_dev *sensor)
ctrls->gain = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_GAIN,
0, 1023, 1, 0);
+ /* Pixel Clock (default of 96MHz) */
+ ctrls->pixel_clock = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_PIXEL_RATE,
+ 1, INT_MAX, 1, 96000000);
ctrls->saturation = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_SATURATION,
0, 255, 1, 64);
ctrls->hue = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_HUE,
As you can see that I have used 96MHz as the default Pixel clock. According to the datasheet, this value suits for most of the formats except QVGA.
After flashing the boot image, below scripts can be used to capture image using Gstreamer.
sudo media-ctl -d /dev/media0 -l '"msm_csiphy0":1->"msm_csid0":0[0],"msm_csid0":1->"msm_ispif0":0[0],"msm_ispif0":1->"msm_vfe0_rdi0":0[0],"msm_ispif0":1->"msm_vfe0_pix":0[0]'
sudo media-ctl -d /dev/media0 -l '"msm_csiphy1":1->"msm_csid1":0[0],"msm_csid1":1->"msm_ispif1":0[0],"msm_ispif1":1->"msm_vfe0_rdi1":0[0],"msm_ispif1":1->"msm_vfe0_pix":0[0]'
# Connect CSI0 to ISP0 output
sudo media-ctl -d /dev/media0 -l '"msm_csiphy0":1->"msm_csid0":0[1],"msm_csid0":1->"msm_ispif0":0[1],"msm_ispif0":1->"msm_vfe0_rdi0":0[1]'
# Set resolution to 1920x1080
sudo media-ctl -d /dev/media0 -V '"ov5640 4-0078":0[fmt:UYVY8_2X8/1920x1080 field:none],"msm_csiphy0":0[fmt:UYVY8_2X8/1920x1080 field:none],"msm_csid0":0[fmt:UYVY8_2X8/1920x1080 field:none],"msm_ispif0":0[fmt:UYVY8_2X8/1920x1080 field:none],"msm_vfe0_rdi0":0[fmt:UYVY8_2X8/1920x1080 field:none]
# Capture image
gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=1 ! 'video/x-raw,format=UYVY,width=1920,height=1080' ! jpegenc ! filesink location=image01.jpg
Hope this helps!
-Mani
