Re: [PATCH v5 11/11] arm64: dts: qcom: shikra: Add gpio-reserved-ranges to tlmm

[Komal Bajaj]

On 7/15/2026 3:57 PM, Konrad Dybcio wrote:
> On 7/7/26 6:36 PM, Komal Bajaj wrote:
> > On 7/2/2026 4:25 PM, Konrad Dybcio wrote:
> > > On 7/2/26 11:50 AM, Komal Bajaj wrote:
> > > > Add gpio-reserved-ranges property to the tlmm node for all three
> > > > Shikra EVK variants (CQM, CQS, IQS) to mark GPIOs used by the
> > > > SoC internally and not available for general use.
> > > These are generally added to prevent non-secure access upon TLMM
> > > probe, i.e. the board won't boot if some of them are not protected.
> > >
> > > I assume the proposed set contains both ones that are _absolutely
> > > forbidden_ for Linux to touch, but also ones that are dedicated to
> > > some specific purpose that Linux _shouldn't_ touch.
> > Yes, some GPIOs are reserved for secure-world use and are therefore not accessible from the non-secure world.
> > I will update the commit message accordingly.
> I'm not sure how to read your response. In other words - is this
> patch boot-critical?

Yes, with Access Policy enabled, it becomes boot-critical.

Thanks
Komal