[PATCH v4 1/3] pinctrl: imx: answer OUTPUT_ENABLE/INPUT_ENABLE queries from the pad register

[Mehmet Fide]

From: Mehmet Fide <mehmet.fide at screeningeagle.com>

> [Severity: Critical]
> This is a pre-existing issue, but can an unvalidated pin_id derived from the
> device tree cause an out-of-bounds access on ipctl->pin_regs here?

Same finding as on v2 and v3, same answer: yes, the parser trusts the
fsl,pins value, this series does not touch it, and I will send a
separate bounds check for imx_pinctrl_parse_pin_mmio() and
imx_pinctrl_parse_pin_scu() once this series is in.

Mehmet