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    SubjectRe: [PATCH] mmc: dw_mmc: Fix DDR mode support.
    Date
    Hi,

    On Thu, Aug 04 2011, Seungwon Jeon wrote:
    > Host driver can't get a hint of DDR mode through ios->ddr flag anymore.
    > ios->timing is currently used to inform DDR mode as a substitute.
    > And capability of MMC_CAP_MMC_HIGHSPEED is added for DDR support.
    >
    > Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
    > ---
    > drivers/mmc/host/dw_mmc.c | 4 ++--
    > 1 files changed, 2 insertions(+), 2 deletions(-)
    >
    > diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
    > index d65511e..b412a1d 100644
    > --- a/drivers/mmc/host/dw_mmc.c
    > +++ b/drivers/mmc/host/dw_mmc.c
    > @@ -699,7 +699,7 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
    > }
    >
    > /* DDR mode set */
    > - if (ios->ddr) {
    > + if (ios->timing == MMC_TIMING_UHS_DDR50) {
    > regs = mci_readl(slot->host, UHS_REG);
    > regs |= (0x1 << slot->id) << 16;
    > mci_writel(slot->host, UHS_REG, regs);
    > @@ -1646,7 +1646,7 @@ static int __init dw_mci_init_slot(struct dw_mci *host, unsigned int id)
    > mmc->caps |= MMC_CAP_4_BIT_DATA;
    >
    > if (host->pdata->quirks & DW_MCI_QUIRK_HIGHSPEED)
    > - mmc->caps |= MMC_CAP_SD_HIGHSPEED;
    > + mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
    >
    > #ifdef CONFIG_MMC_DW_IDMAC
    > mmc->max_segs = host->ring_size;

    Thanks, pushed to mmc-next for 3.1 with Will's ACK.

    - Chris.
    --
    Chris Ball <cjb@laptop.org> <http://printf.net/>
    One Laptop Per Child


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