Hi Andrea,
> On 08:42 Thu 20 Jun , Peter Robinson wrote:
> > The Raspberry Pi devices have to date all used ARCH_BCM2835
> > as their SoC arch dependency so configurations that use this
> > and not BRCMSTB won't end up with this module in their config.
>
> AFAIK the BCM2712 (RPi5) is the only SoC of the Raspberry family
> that has an MMC host controller that is more or less like the one
> present on the STB line silicon. Adding ARCH_BCM2835 to the dependency
> will then allow RPi<=4 to use this driver for which they do not
> have the relevant hw.
It won't use the driver due to the different compatibles, it just
allows the driver to be available. The various different gens of RPi
now have around 4 different types of MMC controller in use.
> If I'm correct about the aforementioned point, I'd be inclined to
> avoid this change, then.
>
> Many thanks,
> Andrea
>
> >
> > Cc: Andrea della Porta <andrea.porta@xxxxxxxx>
> > Cc: Stefan Wahren <wahrenst@xxxxxxx>
> > Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> > Cc: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
> > Fixes: 40f22df5269e6 ("mmc: sdhci-brcmstb: Add BCM2712 support")
> > Signed-off-by: Peter Robinson <pbrobinson@xxxxxxxxx>
> > ---
> > drivers/mmc/host/Kconfig | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
> > index bb0d4fb0892ae..eb3ecfe055910 100644
> > --- a/drivers/mmc/host/Kconfig
> > +++ b/drivers/mmc/host/Kconfig
> > @@ -1016,7 +1016,7 @@ config MMC_SDHCI_MICROCHIP_PIC32
> >
> > config MMC_SDHCI_BRCMSTB
> > tristate "Broadcom SDIO/SD/MMC support"
> > - depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
> > + depends on ARCH_BRCMSTB || ARCH_BCM2835 || BMIPS_GENERIC || COMPILE_TEST
> > depends on MMC_SDHCI_PLTFM
> > select MMC_CQHCI
> > default ARCH_BRCMSTB || BMIPS_GENERIC
> > --
> > 2.45.2
> >
