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I want to enable the LVDS and display something by LED pannel.

Question asked by justin wu on May 7, 2013
Latest reply on May 19, 2013 by justin wu
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Dear ALL:

I want to enable the LVDS and display something by LED pannel.

 

I could run the boot,kernel,and android system.

The LCD ,however, can not be enabled correctly.

 

The following is the bootm command.

 

"bootargs=console=ttymxc1,115200 root=/dev/mmcblk0p5 init=/init rw rootwait "video=mxcfb0:dev=ldb,LDB-WSVGA fbmem=10M,28M vmalloc=400M androidboot.console=ttymxc1 enable_wait_mode=off bootcmd=booti mmc0"

 

The kernel command is the following.

 

Kernel command line: console=ttymxc1,115200 root=/dev/mmcblk0p5 init=/init rw video=mxcfb0:dev=ldb,LDB-WSVGA fbmem=10M,28M video=mxcfb1:dev=hdmi,1920x1080M@60 no_console_suspe

 

Also,the following messages which are from the log messages are weird.

 

imx-ipuv3 imx-ipuv3.0: Channel already disabled 9

 

imx-ipuv3 imx-ipuv3.0: Channel already uninitialized 9

imx-ipuv3 imx-ipuv3.0: Channel already disabled 10

imx-ipuv3 imx-ipuv3.0: Channel already uninitialized 10

 

imx-ipuv3 imx-ipuv3.1: Channel already disabled 7

 

imx-ipuv3 imx-ipuv3.1: Channel already uninitialized 7

 

vmap allocation for size 134221824 failed: use vmalloc=<size> to increase size.

 

galcore: probe of galcore.0 failed with error -22

leds-gpio: probe of leds-gpio failed with error -16

Could you explain the weird messages and how to fix it to enable the IPU,LVDS,and LDB functions?

Best Regards,

Justin Wu

 

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