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imx7 sabresd epdc not working

Question asked by adnan ali on May 30, 2016

Hello NXP,


I have an imx7d based sabresd board. And I want to enable epdc on it, for which I select imx7d-sdb-epdc.dtb device-tree. But the epdc does not comes up. During the bootlog I see that Max17135 PMIC does not probes and when the epdc goes to find "DISPLAY" regulator, it fails.


i2c i2c-2: Max17135 PMIC not found

imx_epdc_v2_fb 306f0000.epdc: Unable to get display PMIC regulator.err = 0xfffffdfb


Any idea what can be wrong here ?


kernel git branch = imx_3.14.52_1.1.0_ga

u-boot-imx branch = imx_v2015.04_3.14.52_1.1.0_ga


Also tried yocto meta-fsl-arm layer. And build with machine imx7dsabresd

I have also tried UBOOT_CONFIG_append = " epdc"


dmesg log is attached




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