Re: [PATCH] Hid: Intel-thc-hid: Intel-quickspi: switch first interrupt from level to edge detection

[Jiri Kosina]

On Fri, 19 Sep 2025, Even Xu wrote:

> The original implementation used level detection for the first interrupt
> after device reset to avoid potential interrupt line noise and missed
> interrupts during the initialization phase. However, this approach
> introduced unintended side effects when tested with certain touch panels,
> including:
>  - Delayed hardware interrupt response
>  - Multiple spurious interrupt triggers
> 
> Switching back to edge detection for the first interrupt resolves these
> issues while maintaining reliable interrupt handling.
> 
> Extensive testing across multiple platforms with touch panels from
> various vendors confirms this change introduces no regressions.
> 
> Fixes: 9d8d51735a3a ("HID: intel-thc-hid: intel-quickspi: Add HIDSPI protocol implementation")
> Tested-by: Rui Zhang <rui1.zhang@xxxxxxxxx>
> Signed-off-by: Even Xu <even.xu@xxxxxxxxx>

Applied to hid.git#for-6.18/upstream-fixes, thanks.

-- 
Jiri Kosina
SUSE Labs