Hi there When we investigated an SDIO Wi-Fi stability issue I discovered the following downstream-only commit in NXP's latest downstream BSP 5.15.52_2.1.0 [1]. The asynchronous SDIO interrupt seems to adversly affect the hardware auto-tuning. As a workaround what got implemented is an fsl-custom device tree property that limits the auto-tuning to 1 bit only (e.g. on DAT[0]) while the SDIO interrupt stays on DAT[1]. Does anybody know any further details about this? Would this be a reasonable thing to also implement upstream? Unfortunately, so far we have not really done any extensive SDIO validation using upstream but I plan to set something like that up so we may see whether or not we are also hitting such issue. Thanks! [1] https://github.com/nxp-imx/linux-imx/commit/84c529a1474a9f6614e475e178ca5fe23b6177de Cheers Marcel
