Re: [PATCH v3] arm64: dts: qcom: shikra-iqs: add M.2 Wi-Fi and Bluetooth overlay

[Rob Herring]

On Mon, Oct 19, 2026 at 9:09 PM Linghui Wu <linghui.wu@xxxxxxxxxxxxxxxx> wrote:
>
> Add an overlay for M.2 Key-E Wi-Fi and Bluetooth modules on the Qualcomm
> Shikra IQS EVK.
>
> The M.2 variant uses the external module connected through the Key-E
> connector instead of the onboard WCN3988 devices. Disable the onboard
> Wi-Fi and Bluetooth nodes when the overlay is selected so the device tree
> matches the hardware variant and does not probe the unavailable onboard
> connectivity path.
>
> Describe the PCIe and UART connections through the M.2 connector, the
> 3.3 V supply, the W_DISABLE signals and the PCIe reset signal.
>
> The Wi-Fi PCIe path was tested on a Shikra IQS EVK with a QCC2072
> module. The overlay was applied, the link trained at Gen2 x1 and the
> endpoint enumerated. Bluetooth UART and HCI runtime validation is
> pending.
>
> Co-developed-by: Wei Deng <wei.deng@xxxxxxxxxxxxxxxx>
> Signed-off-by: Wei Deng <wei.deng@xxxxxxxxxxxxxxxx>
> Signed-off-by: Linghui Wu <linghui.wu@xxxxxxxxxxxxxxxx>
> ---
> Changes in v2:
> - Drop regulator-boot-on and startup-delay-us from the 3.3 V regulator.
>
> Changes in v3:
> - Drop the unused reg override from the disabled TC9563 node.
>
>  arch/arm64/boot/dts/qcom/Makefile             |   1 +
>  .../dts/qcom/shikra-iqs-evk-m2-wifi-bt.dtso   | 105 +++++++++++++++++
>  2 files changed, 106 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/shikra-iqs-evk-m2-wifi-bt.dtso
>
> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
> index 1c86e7e98f55..799faa32e2d9 100644
> --- a/arch/arm64/boot/dts/qcom/Makefile
> +++ b/arch/arm64/boot/dts/qcom/Makefile
> @@ -339,6 +339,7 @@ dtb-$(CONFIG_ARCH_QCOM)     += sdx75-idp.dtb
>  dtb-$(CONFIG_ARCH_QCOM)        += shikra-cqm-evk.dtb
>  dtb-$(CONFIG_ARCH_QCOM)        += shikra-cqs-evk.dtb
>  dtb-$(CONFIG_ARCH_QCOM)        += shikra-iqs-evk.dtb
> +dtb-$(CONFIG_ARCH_QCOM)        += shikra-iqs-evk-m2-wifi-bt.dtbo

Overlays must be applied to a base DT to test that they apply. Sashiko
has pointed out that this doesn't apply on every version you've sent
and you've not replied to the report. Please reply on the other
issues.

Rob