[PATCH] mmc: meson-gx: fix SDIO mode if cap_sdio_irq isn't set

[Heiner Kallweit]

On 12.02.2023 23:38, Geraldo Nascimento wrote:
> On Sun, Feb 12, 2023 at 10:54:25PM +0100, Heiner Kallweit wrote:
>> Some SDIO WiFi modules stopped working after SDIO interrupt mode
>> was added if cap_sdio_irq isn't set in device tree. This patch was
>> confirmed to fix the issue.
> 
> Hi Heiner,
> 
> with this patch, with cap-sdio-irq set or unset in the DT, it doesn't
> matter, I get the following warning on dmesg:
> 
> meson-gx-mmc d0070000.mmc: unaligned sg offset 3148, disabling descriptor DMA for transfer
> 
> The offset number varies between reboots.
> 
> Is that to be expected?

It's a known issue that ath10k may pass buffers to meson-gx-mmc that don't meet
the meson alignment requirement. See here:
https://lore.kernel.org/linux-arm-kernel/CAFBinCCN88nfSnmPoFq4H_ROWFMbq=Kcpr1W6CpNs58XeHtV2w@mail.gmail.com/T/
This means there's nothing wrong with the SDIO IRQ fix.