Hi Fabio Estevam and Ye Li,
On Sat, 2022-01-15 at 10:43 -0300, Fabio Estevam wrote:
Hi Harm and Ye Li,
On Fri, Aug 13, 2021 at 11:35 AM Harm Berntsen harm.berntsen@nedap.com wrote:
Currently the driver gets value from PSR register, but this register is only for input mode. For output mode, it always returns 0, not the value we set for output.
This patch changes to use DR register, which returns the DR value for output mode, and PSR value for input mode.
This patch is based on code from Ye Li ye.li@nxp.com
Could this issue be fixed by setting the SION bit mode?
SION works! I did not know about it :). I see the imxrt1020-evk, imxrt1050-evk and imx53-kp use it in their device tree. To make this feature available, I had to ensure the IMX_PAD_SION was available in my dts by adding a define:
#define IMX_PAD_SION 0x40000000
I could then configure the pinmux in my dts file. It would be nice to make this define available by default.
To conclude, I would now need to enable SION in order to remove the 'Warning: value of pin is still 0' text in my serial output. I'm fine with that.