vddpu VPU/GPU Power

[lifusong]

Dear sir.

  our board is base imx6Q , android BSP is 4.4.3_r1  Kernel version is 3.10.53 uboot version is 2014.04

why the

reg_pu: regulator-vddpu@140 {

only have voltage is 0.2v.

bud the android 4.2.2 code ,this pin's voltage is 1.265V.

any body can help me?

thans very much!

[igorpadykov · Accepted solution]

Hi li

reason may be that at start-up vddpu regulator is gated,

however if you run application which uses gpu, it should be turned

on, please check that.  Android 4.4.3 uses different kernel version than

android 4.2.2, so behaviour is different.

Best regards

igor

-----------------------------------------------------------------------------------------------------------------------

Note: If this post answers your question, please click the Correct Answer button. Thank you!

-----------------------------------------------------------------------------------------------------------------------