There is no audio data output from the 3.5mm headphone jack after the HDMI node is disabled
Sorry to bother you.
I don't need the HDMI chip(sii9022) in my project. So, I first removed the HDMI chip on the STM32P157F-DK2. In fact, I manually removed it with a soldering iron. My SDK and development environment are based on "stm32mp1-openstlinux-6.1-yocto- mickledore-mp1-v23.06.21" "en.SDK-x86_64-stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21.tar.gz".
At first I didn't make any modification, the mipi display screen will not work normally after the kernel boots, after some fumbling, I modified the device tree and now the mipi screen displays normally, my modification points are as follows(filename:stm32mp15xx-dkx.dtsi):
hdmi-transmitter@39 {
compatible = "sil,sii9022";
reg = <0x39>;
iovcc-supply = <&v3v3_hdmi>;
cvcc12-supply = <&v1v2_hdmi>;
reset-gpios = <&gpioa 10 GPIO_ACTIVE_LOW>;
interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
interrupt-parent = <&gpiog>;
#sound-dai-cells = <0>;
status = "disabled";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
sii9022_in: endpoint {
remote-endpoint = <<dc_ep0_out>;
};
};
};
};And I run the following command:
The phenomenon is that the video is displayed normally on the screen, but there is no sound from the 3.5mm headphone jack.
weston@stm32mp1:~$ su weston
weston@stm32mp1:~$ aplay -l
aplay: device_list:274: no soundcards found...
weston@stm32mp1:~$ gst-discoverer-1.0 /home/weston/watch.mp4
Analyzing file:///home/weston/watch.mp4
Done discovering file:///home/weston/watch.mp4
Properties:
Duration: 0:03:02.381678004
Seekable: yes
Live: no
container #0: Quicktime
video #1: H.264 (High Profile)
Stream ID: 905bc53223835d6a2923b48e8dc694e902b3a501f84c07707ad690ac05f03035/001
Width: 960
Height: 544
Depth: 24
Frame rate: 30000/1001
Pixel aspect ratio: 1/1
Interlaced: false
Bitrate: 469403
Max bitrate: 0
audio #2: MPEG-4 AAC
Stream ID: 905bc53223835d6a2923b48e8dc694e902b3a501f84c07707ad690ac05f03035/002
Language: <unknown>
Channels: 1 (unknown layout)
Sample rate: 44100
Depth: 32
Bitrate: 48000
Max bitrate: 48000
weston@stm32mp1:~$ gst-launch-1.0 playbin uri=file:///home/weston/watch.mp4
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Redistribute latency...
Redistribute latency...
Redistribute latency...
Redistribute latency...
Redistribute latency...0.0 %)
Redistribute latency...0.0 %)
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstPulseSinkClock
Redistribute latency...0.0 %)
^Chandling interrupt. (2.1 %)
Interrupt: Stopping pipeline ...
Execution ended after 0:00:05.397120377
Setting pipeline to NULL ...
Freeing pipeline ...
weston@stm32mp1:~$
Do I need to modify other places on the device tree? My understanding of port, endpoint, and remote-endpoint is poor, can you please help me modify a device tree that can output audio from the 3.5mm headphone jack? At least for now, I think the devices tree needs to be modified firstly.
Attached is a boot log after I disabled the HDMI node in device tree.