Re: AM37x unable to drive output of some gpio lines (works with 2.6.37)

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On 09.10.2015 02:54, Ladislav Michl wrote:
> Hi there!
> 
> on custom AM37x board running 2.6.37 this was enough to enable gpio 67:
> echo 71 > /sys/class/gpio/export
> echo out > /sys/class/gpio/gpio71/direction
> echo 1 > /sys/class/gpio/gpio71/value
> 
> However, with DT configured linux-4.2 compiled using omap2plus_defconfig
> this no longer works.
[...]

Is some other device driver using these pins? Pins 70 and 71 could be
DSS or UART1. Maybe you need to set them to "disabled" in your DT.

Best regards,
Rolf
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