Hi, thanks for the report and thanks to Ulf for forwarding. Adding renesas-soc list, too.
> > So my question is that "What is the reason behind to disable IRQ with > > SDIO_MODE? Is there any situation which masking with SDIO_INFO1_MASK > > is not enough? This code predates the time since I took over maintainership of the driver, so I had to dig in git history. The code was introduced with 845ecd20239c28 ("mmc: tmio_mmc: implement SDIO IRQ support") which was in 2010. I don't have that old datasheets to check if the SCLKDIVEN restriction was already present in the SDHI cores which were available back then. My assumption is that it was not, or it was overlooked. So, it might be just for completeness that not only the individual IRQs have been disabled but also the big master switch (IOMOD) was turned off. My further assumption is that it is very likely good enough to disable the individual IRQs. If we can't guarantee the conditions to set IOMOD, it seems okay to me to just leave it. Do you have a patch which works for you? Regards, Wolfram
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