IMX8mp uboot splash screen on EVK LVDS1 - imx8mp_lvds.c

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IMX8mp uboot splash screen on EVK LVDS1 - imx8mp_lvds.c

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ufnguru
Contributor I

After adding the LVDS patches and a fakepwm driver to drive the GPIO1_11 (pwm) line high, the uboot splash screen is displayed on LVDS0 connector on the imx8mp EVK, I want to move it to the LVDS1 connector. I changed the device tree and with debug enabled and printfs - I see that LVDS1 does not appear to be supported in the file "imx8mp_lvds.c".  Can someone get me a version of the file that supports LVDS1?

Here is my debug output:

ofnode_graph_get_next_endpoint
get next endpoint endpoint@1
ofnode_graph_get_remote_port_parent
ofnode_graph_get_remote_endpoint
ofnode_graph_get_port_parent
remote lvds-channel@1
find_device_by_ofnode, entry
Looking for lvds-channel@1
- checking ldb@32ec005c
- checking lvds-channel@0
- result for lvds-channel@1: (none) (ret=-19)
Looking for lvds-channel@1
- checking dsi-host
- result for lvds-channel@1: (none) (ret=-19)
Looking for lvds-channel@1
- result for lvds-channel@1: (none) (ret=-19)
Looking for lvds-channel@1
- checking lvds1_panel
- result for lvds-channel@1: (none) (ret=-19)
find_device_by_ofnode, exit fail

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664 次查看
Bio_TICFSL
NXP TechSupport
NXP TechSupport

Hello,

You might check the uboot env variable and check your device tree if the LVDS1 is up and avaliable.

Regards

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ufnguru
Contributor I

I had to modify the imx8mp_lvds.c file as shown in the attached file.

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