Hi Marek,
On 19/10/16 20:25, Marek Vasut wrote:
On 10/19/2016 06:22 PM, Jack Mitchell wrote:
Hi Philipp,
On 17/10/16 13:12, Philipp Zabel wrote:
Hi Jack,
Am Montag, den 17.10.2016, 12:32 +0100 schrieb Jack Mitchell:
Hi Philipp,
I'm looking at how I would enable a parallel greyscale camera using this
set of drivers and am a little bit confused. Do you have an example
somewhere of a devicetree with an input node.
In your board device tree it should look somewhat like this:
&i2c1 {
sensor@48 {
compatible = "aptina,mt9v032m";
/* ... */
port {
cam_out: endpoint {
remote-endpoint = <&csi_in>;
}
};
};
};
/*
* This is the input port node corresponding to the 'CSI0' pad group,
* not necessarily the CSI0 port of IPU1 or IPU2. On i.MX6Q it's port@1
* of the mipi_ipu1_mux, on i.MX6DL it's port@4 of the ipu_csi0_mux,
* the csi0 label is added in patch 13/21.
*/
&csi0 {
#address-cells = <1>;
#size-cells = <0>;
csi_in: endpoint@0 {
bus-width = <8>;
data-shift = <12>;
hsync-active = <1>;
vsync-active = <1>;
pclk-sample = <1>;
remote-endpoint = <&cam_out>;
};
};
I also have a further note below:
[...]
+ if (raw && priv->smfc) {
Thank you, I think I have something which is kind of right.
(Apologies in advance for the formatting)
diff --git a/arch/arm/boot/dts/imx6q-sabrelite.dts
b/arch/arm/boot/dts/imx6q-sabrelite.dts
index 66d10d8..90e6b92 100644
--- a/arch/arm/boot/dts/imx6q-sabrelite.dts
+++ b/arch/arm/boot/dts/imx6q-sabrelite.dts
@@ -52,3 +52,62 @@
&sata {
status = "okay";
};
+
+&i2c2 {
+ sensor@10 {
+ compatible = "onsemi,ar0135";
+ reg = <0x10>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ar0135>;
+
+ reset-gpio = <&gpio1 6 GPIO_ACTIVE_HIGH>;
+
+ clocks = <&clks IMX6QDL_CLK_CKO2>;
+ clock-names = "xclk";
+
+ xclk = <24000000>;
+
+ port {
+ parallel_camera_output: endpoint {
+ remote-endpoint = <&csi_in_from_parallel_camera>;
+ };
+ };
+ };
+};
+
+&csi0 {
+ csi_in_from_parallel_camera: endpoint@0 {
+ bus-width = <8>;
+ data-shift = <12>;
+ hsync-active = <1>;
+ vsync-active = <1>;
+ pclk-sample = <1>;
+ remote-endpoint = <¶llel_camera_output>;
+ };
+};
+
+&iomuxc {
+
+ imx6q-sabrelite {
+
+ pinctrl_ar0135: ar0135grp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_6__GPIO1_IO06 0x80000000
+ MX6QDL_PAD_CSI0_DAT12__IPU1_CSI0_DATA12 0x80000000
+ MX6QDL_PAD_CSI0_DAT13__IPU1_CSI0_DATA13 0x80000000
+ MX6QDL_PAD_CSI0_DAT14__IPU1_CSI0_DATA14 0x80000000
+ MX6QDL_PAD_CSI0_DAT15__IPU1_CSI0_DATA15 0x80000000
+ MX6QDL_PAD_CSI0_DAT16__IPU1_CSI0_DATA16 0x80000000
+ MX6QDL_PAD_CSI0_DAT17__IPU1_CSI0_DATA17 0x80000000
+ MX6QDL_PAD_CSI0_DAT18__IPU1_CSI0_DATA18 0x80000000
+ MX6QDL_PAD_CSI0_DAT19__IPU1_CSI0_DATA19 0x80000000
+ MX6QDL_PAD_CSI0_PIXCLK__IPU1_CSI0_PIXCLK 0x80000000
+ MX6QDL_PAD_CSI0_MCLK__IPU1_CSI0_HSYNC 0x80000000
+ MX6QDL_PAD_CSI0_VSYNC__IPU1_CSI0_VSYNC 0x80000000
+ MX6QDL_PAD_CSI0_DATA_EN__IPU1_CSI0_DATA_EN 0x80000000
+ >;
+ };
+ };
+};
However, I can't seem to link the entities together properly, am I
missing something obvious?
root@vicon:~# media-ctl -p
Media controller API version 0.1.0
Media device information
------------------------
driver imx-media
model i.MX IPUv3
serial
bus info
hw revision 0x0
driver version 0.0.0
Device topology
- entity 1: IPU0 CSI0 (2 pads, 1 link)
type V4L2 subdev subtype Unknown flags 0
pad0: Sink
pad1: Source
-> "imx-ipuv3-capture.0":0 [ENABLED]
- entity 4: imx-ipuv3-capture.0 (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video0
pad0: Sink
<- "IPU0 CSI0":1 [ENABLED]
- entity 10: IPU0 CSI1 (2 pads, 1 link)
type V4L2 subdev subtype Unknown flags 0
pad0: Sink
pad1: Source
-> "imx-ipuv3-capture.1":0 [ENABLED]
- entity 13: imx-ipuv3-capture.1 (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video1
pad0: Sink
<- "IPU0 CSI1":1 [ENABLED]
- entity 19: IPU1 CSI0 (2 pads, 1 link)
type V4L2 subdev subtype Unknown flags 0
pad0: Sink
pad1: Source
-> "imx-ipuv3-capture.0":0 [ENABLED]
- entity 22: imx-ipuv3-capture.0 (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video2
pad0: Sink
<- "IPU1 CSI0":1 [ENABLED]
- entity 28: IPU1 CSI1 (2 pads, 1 link)
type V4L2 subdev subtype Unknown flags 0
pad0: Sink
pad1: Source
-> "imx-ipuv3-capture.1":0 [ENABLED]
- entity 31: imx-ipuv3-capture.1 (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video3
pad0: Sink
<- "IPU1 CSI1":1 [ENABLED]
- entity 37: mipi_ipu1_mux (3 pads, 0 link)
type V4L2 subdev subtype Unknown flags 0
pad0: Sink
pad1: Sink
pad2: Source
- entity 41: mipi_ipu2_mux (3 pads, 0 link)
type V4L2 subdev subtype Unknown flags 0
pad0: Sink
pad1: Sink
pad2: Source
- entity 45: ar0135 1-0010 (1 pad, 0 link)
type V4L2 subdev subtype Unknown flags 0
pad0: Source
root@imx6:~# media-ctl -v --links '"ar01351-0010":0->"mipi_ipu1_mux":0[1]'
Opening media device /dev/media0
Enumerating entities
Found 11 entities
Enumerating pads and links
No link between "ar0135 1-0010":0 and "mipi_ipu1_mux":0
media_parse_setup_link: Unable to parse link
"ar0135 1-0010":0->"mipi_ipu1_mux":0[1]
^
Unable to parse link: Invalid argument (22)
If you have something in the works with a camera example then just tell
me to be patient and I'll wait for a v3 ;)
Check whether you have something along these lines in your camera driver
in the probe() function:
priv->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
priv->subdev.dev = &client->dev;
priv->pad.flags = MEDIA_PAD_FL_SOURCE;
ret = media_entity_init(&priv->subdev.entity, 1, &priv->pad, 0);
if (ret < 0) {
v4l2_clk_put(priv->clk);
return ret;
}
ret = v4l2_async_register_subdev(&priv->subdev);
if (ret < 0) {
v4l2_clk_put(priv->clk);
return ret;
}
Yes, I have stripped the driver down to do nothing[1] apart from probe,
and allow me to try to link the pipeline together. I still have no luck.
- entity 1: IPU0 CSI0 (2 pads, 1 link)
type V4L2 subdev subtype Unknown flags 0
pad0: Sink
pad1: Source
-> "imx-ipuv3-capture.0":0 [ENABLED]
- entity 45: ar0135 1-0010 (1 pad, 0 link)
type V4L2 subdev subtype Unknown flags 0
pad0: Source
root@sabrelite:~# media-ctl -v --links '"ar0135 1-0010":0->"IPU0 CSI0":0[1]'
Opening media device /dev/media0
Enumerating entities
Found 11 entities
Enumerating pads and links
No link between "ar0135 1-0010":0 and "IPU0 CSI0":0
media_parse_setup_link: Unable to parse link
"ar0135 1-0010":0->"IPU0 CSI0":0[1]
^
Unable to parse link: Invalid argument (22)
It's possible I'm attempting to go about this the wrong way, the whole
v4l2 subsystem is a bit of a maze.
Cheers,
Jack.
[1] http://pastebin.com/EXZKq4jZ
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