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PhyFLEX-i.MX6 kernel 3.10.17 lcd support

Question asked by Stanislaw Janeczko on Dec 10, 2014

Hello,

 

I want to use 3.10.17 kernel to have gpu drivers to use with qt5. I took kernel from freescale git:  imx_3.10.17_1.0.1_ga, applied patches from phytec( I took it from their yocto BSP ). Kernel boots and rootfs mounts but I can't make lcd to work.  I tried to change some things in dtb files but everything seems to be correct. Lcd is connected thru LVDS0 and uses DISP0_DAT8 pin for backlight pwm and GPIO_8 for display enable pin( I made GPIO_8 to act as "gpio_leds" and backligt lit but nothing was on the screen ).

 

After boot up I see three fb devices. When I check /sys/class/graphics/fb0/fsl_disp_dev_property I have: fb0 -> hdmi , fb1 -> overaly, fb2 -> ldb.

 

I attached files that are made after applying patches ldb.c file is also patched with additional lcd fb_videomode for their lcd.

 

Thank for any tip or suggestion how to solve this problem.

Original Attachment has been moved to: imx6q-phytec-pbab01.dts.zip

Original Attachment has been moved to: mach-pfla02.c.txt.zip

Original Attachment has been moved to: imx6q-phytec-pfla02.dtsi.zip

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