topic Re: U-Boot PWM Test For Brightness in i.MX Processors

U-Boot PWM Test For Brightness

anshulkhare — Tue, 19 Dec 2017 08:57:09 GMT

Hi,

I have an iMX6UL board,
i am doing U-Boot PWM Test for Changing the brightness on LCD Display,
is there any command to perform the test in U-Boot .

Thank you :smileyhappy:

Re: U-Boot PWM Test For Brightness

igorpadykov — Tue, 19 Dec 2017 10:22:41 GMT

Hi Anshul

usually pwm is used in uboot for lcd brightness, seems

one can add special pwm commands using pwm driver in

drivers/pwm/pwm-imx.c. Pwm examples can be found in Github SDK
https://github.com/backenklee/swp-report/tree/master/iMX6_Platform_SDK

Best regards
igor
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Re: U-Boot PWM Test For Brightness

anshulkhare — Thu, 28 Dec 2017 12:44:40 GMT

Hi igor,

Thanks for Your Reply,

i am not getting which special command i need to enable in driver,

can u please help me on this.

Best regards
Anshul