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

[Konrad Dybcio]

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.

Please add comments, like in glymur-crd.dtsi:

        gpio-reserved-ranges = <4 4>, /* EC TZ Secure I3C */
                               <10 2>, /* OOB UART */
                               <44 4>; /* Security SPI (TPM) */

explaining what these pins are.

If any of them are boot-critical, squash this into the introductory
change

Konrad