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From: Joakim Tjernlund <joakim.tjernlund@transmode.se>
To: "arnd@arndb.de" <arnd@arndb.de>
Subject: Re: [PATCH 1/2] sdhci-of-esdhc: Support 8BIT bus width.
Date: Mon, 4 May 2015 21:17:27 +0000
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On Mon, 2015-05-04 at 19:31 +0200, Arnd Bergmann wrote:
> On Monday 04 May 2015 18:31:31 Joakim Tjernlund wrote:
> > @@ -252,6 +260,8 @@ static void esdhc_of_platform_init(struct sdhci_hos=
t *host)
> > =20
> >         if (vvn > VENDOR_V_22)
> >                 host->quirks &=3D ~SDHCI_QUIRK_NO_BUSY_IRQ;
> > +
> > +       host->mmc->caps |=3D MMC_CAP_8_BIT_DATA;
> >  }
> >=20
>=20
> Shouldn't this check the "bus-width" property before setting the width?
>=20
> There might be an eMMC or SDIO with 4-bit interface connected.

This is for an eMMC chip we got and I THINK(this is new to me) that
this only allows 8 bit negotiation but I might be way off.
=20
Anyone knows for sure?

 Jocke=