Re: [PATCH v5 1/2] firmware: qcom_scm: Add API to get waitqueue IRQ info

[Bartosz Golaszewski]

On Fri, Feb 28, 2025 at 6:40 AM Unnathi Chalicheemala
<unnathi.chalicheemala@xxxxxxxxxxxxxxxx> wrote:
>
> Bootloader and firmware for SM8650 and older chipsets expect node
> name as "qcom_scm", in order to patch the wait queue IRQ information.
> However, DeviceTree uses node name "scm" and this mismatch prevents
> firmware from correctly identifying waitqueue IRQ information. Waitqueue
> IRQ is used for signaling between secure and non-secure worlds.
>
> To resolve this, introduce qcom_scm_get_waitq_irq() that'll get the
> hardware IRQ number to be used from firmware instead of relying on data
> provided by devicetree, thereby bypassing the DeviceTree node name
> mismatch.
>
> This hardware IRQ number is converted to a Linux IRQ number using newly
> defined fill_irq_fwspec_params(). This Linux IRQ number is then supplied
> to the threaded_irq call.
>
> Signed-off-by: Unnathi Chalicheemala <unnathi.chalicheemala@xxxxxxxxxxxxxxxx>
> ---

Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>