Messages in this thread | | | Subject | Re: [PATCH v2 1/3] dt-bindings: pinctrl: Add a reserved-gpio-ranges property | From | Andy Shevchenko <> | Date | Fri, 26 Jan 2018 11:20:26 +0200 |
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On Thu, 2018-01-25 at 17:13 -0800, Stephen Boyd wrote: > Some qcom platforms make some GPIOs or pins unavailable for use > by non-secure operating systems, and thus reading or writing the > registers for those pins will cause access control issues. > Introduce a DT property to describe the set of GPIOs that are > available for use so that higher level OSes are able to know what > pins to avoid reading/writing.
> gpio-controller; > #gpio-cells = <2>; > ngpios = <18>; > + reserved-gpio-ranges = <0 4>, <12 2>;
What about preserving namespace, i.e.
gpio-reserved-ranges vs. your variant?
-- Andy Shevchenko <andriy.shevchenko@linux.intel.com> Intel Finland Oy
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