> > +			  TMIO_MMC_HAVE_CBSY | MMC_CAP_WAIT_WHILE_BUSY,
> 
> We should add MMC_CAP_WAIT_WHILE_BUSY to .capabilities, not .tmio_flags.

Ouch, can I have a brown paper bag, please!

> 
> >  	.tmio_ocr_mask	= MMC_VDD_32_33,
> >  	.capabilities	= MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
> >  			  MMC_CAP_CMD23,
> > @@ -111,7 +111,7 @@ static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = {
> >  	.tmio_flags	= TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_CLK_ACTUAL |
> >  			  TMIO_MMC_HAVE_CBSY | TMIO_MMC_MIN_RCAR2,
> >  	.capabilities	= MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
> > -			  MMC_CAP_CMD23,
> > +			  MMC_CAP_CMD23 | MMC_CAP_WAIT_WHILE_BUSY,

At least for the machines I could test, I did it correctly :/