imx8mp mipi csi camera overlay: Unable to retrieve endpoint for port at 1
Tim Harvey
tharvey at gateworks.com
Mon Jul 10 17:58:57 PDT 2023
On Fri, Jul 7, 2023 at 6:11 PM Adam Ford <aford173 at gmail.com> wrote:
>
> On Fri, Jul 7, 2023 at 7:28 PM Tim Harvey <tharvey at gateworks.com> wrote:
> >
> > Greetings,
> >
> > I have an imx219 camera connected to an imx8mp-venice-gw74xx via the
> > following details:
> > - camera is a RaspberryPi Camera v2 -
> > https://datasheets.raspberrypi.com/camera/camera-v2-schematics.pdf
> > - has its own on-board 24MHz osc so no clock is required from the baseboard
> > - pin 11 on the camera enables 1.8V and 2.8V LDO which is connected to
> > IMX8MP GPIO1_IO1 so we use that as a gpio regulator
> > - MIPI_CSI1 lanes 0 and 1 are used
> >
> > I'm using Linux 6.4 with Laurent's pending patch to add the MIPI CSI
> > DT nodes to imx8mp.dtsi [1] as follows:
> >
> > #include <dt-bindings/gpio/gpio.h>
> > #include "imx8mp-pinfunc.h"
> >
> > /dts-v1/;
> > /plugin/;
> >
> > &{/} {
> > compatible = "gw,imx8mp-gw74xx", "fsl,imx8mp";
> >
> > reg_cam: regulator-cam {
> > pinctrl-names = "default";
> > pinctrl-0 = <&pinctrl_reg_cam>;
> > compatible = "regulator-fixed";
> > regulator-name = "reg_cam";
> > gpio = <&gpio1 1 GPIO_ACTIVE_HIGH>;
> > enable-active-high;
> > regulator-min-microvolt = <1800000>;
> > regulator-max-microvolt = <1800000>;
> > };
> >
> > cam24m: cam24m {
> > compatible = "fixed-clock";
> > #clock-cells = <0>;
> > clock-frequency = <24000000>;
> > clock-output-names = "cam24m";
> > };
> > };
> >
> > &i2c3 {
> > #address-cells = <1>;
> > #size-cells = <0>;
> >
> > imx219: sensor at 10 {
> > compatible = "sony,imx219";
> > reg = <0x10>;
> > clocks = <&cam24m>;
> > VDIG-supply = <®_cam>;
> >
> > port {
> > /* MIPI CSI-2 bus endpoint */
> > imx219_to_mipi_csi2: endpoint {
> > remote-endpoint = <&mipi_csi_0_in>;
> > clock-lanes = <0>;
> > data-lanes = <1 2>;
> > link-frequencies = /bits/ 64 <456000000>;
> > };
> > };
> > };
> > };
> >
> > &mipi_csi_0 {
> > status = "okay";
> >
> > ports {
> > port at 0 {
> > mipi_csi_0_in: endpoint {
> > remote-endpoint = <&imx219_to_mipi_csi2>;
> > data-lanes = <1 2>;
> > };
> > };
> > };
> > };
> >
> > &iomuxc {
> > pinctrl_reg_cam: regcamgrp {
> > fsl,pins = <
> > MX8MP_IOMUXC_GPIO1_IO01__GPIO1_IO01 0x41
> > >;
> > };
> > };
> >
> > imx-mipi-csis fails to probe due to a missing port1 endpoint and I'm
> > not clear what to do with that:
> > imx-mipi-csis 32e40000.csi: Unable to retrieve endpoint for port at 1
> > imx-mipi-csis: probe of 32e40000.csi failed with error -2
> >
> > Any suggestions?
>
> I think the port needs to point to an ISI node or a ISP node.
> Linux-next shows port at 1 pointing to isi_in_0. In the patch you're
> referencing, it appears that node at 1 is missing.
>
> Check out:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/arch/arm64/boot/dts/freescale/imx8mp.dtsi?h=next-20230707&id=9da15c4c850dd53309e07d5611f33655f8f8c05d
>
> See if that helps.
>
> adam
>
Hi Adam,
Thanks for the info. I didn't realize those patches were already in
linux-next and I missed the fact that the ISI was related to the CSI
(so I was missing the ISI patch and enabling that driver).
I'm now using 6.5.0-rc1 which has the patches that add CSI and ISI
nodes to the imx8mp.dtsi with the following dt fragment:
#include <dt-bindings/gpio/gpio.h>
#include "imx8mp-pinfunc.h"
/dts-v1/;
/plugin/;
&{/} {
compatible = "gw,imx8mp-gw74xx", "fsl,imx8mp";
reg_cam: regulator-cam {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_reg_cam>;
compatible = "regulator-fixed";
regulator-name = "reg_cam";
gpio = <&gpio1 4 GPIO_ACTIVE_HIGH>;
enable-active-high;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
cam24m: cam24m {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <24000000>;
clock-output-names = "cam24m";
};
};
&i2c4 {
#address-cells = <1>;
#size-cells = <0>;
imx219: sensor at 10 {
compatible = "sony,imx219";
reg = <0x10>;
clocks = <&cam24m>;
VDIG-supply = <®_cam>;
port {
/* MIPI CSI-2 bus endpoint */
imx219_to_mipi_csi2: endpoint {
remote-endpoint = <&mipi_csi_0_in>;
clock-lanes = <0>;
data-lanes = <1 2>;
link-frequencies = /bits/ 64 <456000000>;
};
};
};
};
&isi_0 {
status = "okay";
};
&mipi_csi_0 {
status = "okay";
ports {
port at 0 {
mipi_csi_0_in: endpoint {
remote-endpoint = <&imx219_to_mipi_csi2>;
data-lanes = <1 2>;
};
};
};
};
&iomuxc {
pinctrl_reg_cam: regcamgrp {
fsl,pins = <
MX8MP_IOMUXC_GPIO1_IO04__GPIO1_IO04 0x41
>;
};
};
Now I'm getting:
# dmesg | grep imx219
[ 1.764111] imx219 2-0010: supply VANA not found, using dummy regulator
[ 1.770953] imx219 2-0010: supply VDDL not found, using dummy regulator
[ 5.520396] imx219 2-0010: Consider updating driver imx219 to match
on endpoints
# dmesg | grep mipi
[ 2.080468] imx-mipi-csis 32e40000.csi: lanes: 2, freq: 500000000
# cat /sys/bus/media/devices/media*/model
FSL Capture Media Device
hantro-vpu
hantro-vpu
# cat /sys/class/video4linux/video*/name
mxc_isi.0.capture
mxc_isi.1.capture
mxc_isi.m2m
nxp,imx8mm-vpu-g1-dec
nxp,imx8mq-vpu-g2-dec
# media-ctl /dev/media0 -p
Media controller API version 6.5.0
Media device information
------------------------
driver mxc-isi
model FSL Capture Media Device
serial
bus info platform:32e00000.isi
hw revision 0x0
driver version 6.5.0
Device topology
- entity 1: crossbar (5 pads, 4 links)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev0
pad0: Sink
[fmt:UYVY8_1X16/1920x1080 field:none colorspace:srgb
xfer:srgb ycbcr:601 quantization:lim-range]
<- "csis-32e40000.csi":1 [ENABLED,IMMUTABLE]
pad1: Sink
[fmt:UYVY8_1X16/1920x1080 field:none colorspace:srgb
xfer:srgb ycbcr:601 quantization:lim-range]
pad2: Sink
<- "mxc_isi.output":0 [ENABLED,IMMUTABLE]
pad3: Source
[fmt:UYVY8_1X16/1920x1080 field:none colorspace:srgb
xfer:srgb ycbcr:601 quantization:lim-range]
-> "mxc_isi.0":0 [ENABLED,IMMUTABLE]
pad4: Source
[fmt:UYVY8_1X16/1920x1080 field:none colorspace:srgb
xfer:srgb ycbcr:601 quantization:lim-range]
-> "mxc_isi.1":0 [ENABLED,IMMUTABLE]
- entity 7: mxc_isi.0 (2 pads, 2 links)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev1
pad0: Sink
[fmt:UYVY8_1X16/1920x1080 field:none colorspace:jpeg
xfer:srgb ycbcr:601 quantization:full-range
compose.bounds:(0,0)/1920x1080
compose:(0,0)/1920x1080]
<- "crossbar":3 [ENABLED,IMMUTABLE]
pad1: Source
[fmt:YUV8_1X24/1920x1080 field:none colorspace:jpeg
xfer:srgb ycbcr:601 quantization:full-range
crop.bounds:(0,0)/1920x1080
crop:(0,0)/1920x1080]
-> "mxc_isi.0.capture":0 [ENABLED,IMMUTABLE]
- entity 10: mxc_isi.0.capture (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video0
pad0: Sink
<- "mxc_isi.0":1 [ENABLED,IMMUTABLE]
- entity 18: mxc_isi.1 (2 pads, 2 links)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev2
pad0: Sink
[fmt:UYVY8_1X16/1920x1080 field:none colorspace:jpeg
xfer:srgb ycbcr:601 quantization:full-range
compose.bounds:(0,0)/1920x1080
compose:(0,0)/1920x1080]
<- "crossbar":4 [ENABLED,IMMUTABLE]
pad1: Source
[fmt:YUV8_1X24/1920x1080 field:none colorspace:jpeg
xfer:srgb ycbcr:601 quantization:full-range
crop.bounds:(0,0)/1920x1080
crop:(0,0)/1920x1080]
-> "mxc_isi.1.capture":0 [ENABLED,IMMUTABLE]
- entity 21: mxc_isi.1.capture (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video1
pad0: Sink
<- "mxc_isi.1":1 [ENABLED,IMMUTABLE]
- entity 29: mxc_isi.output (1 pad, 1 link)
type Node subtype V4L flags 0
pad0: Source
-> "crossbar":2 [ENABLED,IMMUTABLE]
- entity 36: csis-32e40000.csi (2 pads, 2 links)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev3
pad0: Sink
[fmt:UYVY8_1X16/640x480 field:none
colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
<- "imx219 3-0010":0 []
pad1: Source
[fmt:UYVY8_1X16/640x480 field:none
colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
-> "crossbar":0 [ENABLED,IMMUTABLE]
- entity 41: imx219 3-0010 (1 pad, 1 link)
type V4L2 subdev subtype Sensor flags 0
device node name /dev/v4l-subdev4
pad0: Source
[fmt:SRGGB10_1X10/3280x2464 field:none colorspace:srgb
xfer:srgb ycbcr:601 quantization:full-range
crop.bounds:(8,8)/3280x2464
crop:(8,8)/3280x2464]
-> "csis-32e40000.csi":0 []
# enable imx219 to csi link
media-ctl --device /dev/media0 --links "'imx219
3-0010':0->'csis-32e40000.csi':0[1]"
# v4l2-ctl --device /dev/video0 --all
Driver Info:
Driver name : mxc-isi
Card type : mxc-isi-cap
Bus info : platform:32e00000.isi
Driver version : 6.5.0
Capabilities : 0xa4201000
Video Capture Multiplanar
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x24201000
Video Capture Multiplanar
Streaming
Extended Pix Format
Media Driver Info:
Driver name : mxc-isi
Model : FSL Capture Media Device
Serial :
Bus info : platform:32e00000.isi
Media version : 6.5.0
Hardware revision: 0x00000000 (0)
Driver version : 6.5.0
Interface Info:
ID : 0x0300000c
Type : V4L Video
Entity Info:
ID : 0x0000000a (10)
Name : mxc_isi.0.capture
Function : V4L2 I/O
Pad 0x0100000b : 0: Sink
Link 0x0200000e: from remote pad 0x1000009 of entity
'mxc_isi.0' (Video Pixel Formatter): Data, Enabled, Immutable
Priority: 2
Video input : 0 (mxc_isi.0.capture: ok)
Format Video Capture Multiplanar:
Width/Height : 640/480
Pixel Format : 'RGGB' (8-bit Bayer RGRG/GBGB)
Field : None
Number of planes : 1
Flags :
Colorspace : sRGB
Transfer Function : sRGB
YCbCr/HSV Encoding: ITU-R 601
Quantization : Limited Range
Plane 0 :
Bytes per Line : 640
Size Image : 307200
User Controls
horizontal_flip 0x00980914 (bool) : default=0 value=0
vertical_flip 0x00980915 (bool) : default=0 value=0
alpha_component 0x00980929 (int) : min=0 max=255
step=1 default=0 value=0
# try to capture a frame
v4l2-ctl --device /dev/video0 --stream-mmap --stream-to=x.raw --stream-count=1
VIDIOC_STREAMON returned -1 (Broken pipe)
^^^ fails... not sure why
# try to use gstreamer
gst-launch-1.0 v4l2src device=/dev/video0 !
video/x-bayer,format=rggb,width=640,height=480,framerate=10/1 !
fakesink
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed
to allocate required memory.
Additional debug info:
../sys/v4l2/gstv4l2src.c(759): gst_v4l2src_decide_allocation ():
/GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
Buffer pool activation failed
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
Internal data stream error.
Execution ended after 0:00:00.005517125
Additional debug info:
../libs/gst/base/gstbasesrc.c(3127): gst_base_src_loop ():
/GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
streaming stopped, reason not-negotiated (-4)
Setting pipeline to NULL ...
Freeing pipeline ...
^^^ not sure what the memory allocation failure is about. It was
complaining about cma memory until I added cma=256M to the cmdline
I'm now at the point where I likely need help from the video4linux and
linux-media (cc'd) gurus.
best regards,
Tim
>
> >
> > Best regards,
> >
> > Tim
> > [1] https://patchwork.linuxtv.org/project/linux-media/patch/20230418153104.21337-2-laurent.pinchart@ideasonboard.com/
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