On 24/02/20 11:08 am, Baolin Wang wrote: > The Spreadtrum host controller supports HW busy detection for I/O > operations, which means when the host gets a transfer complete event, > that always indicates the busy signal is released. Thus we can set > the MMC_CAP_WAIT_WHILE_BUSY flag to remove some redundant software > busy polling. > > Signed-off-by: Baolin Wang <baolin.wang7@xxxxxxxxx> Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx> > --- > drivers/mmc/host/sdhci-sprd.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c > index d346223..2ab42c5 100644 > --- a/drivers/mmc/host/sdhci-sprd.c > +++ b/drivers/mmc/host/sdhci-sprd.c > @@ -556,7 +556,7 @@ static int sdhci_sprd_probe(struct platform_device *pdev) > sdhci_sprd_voltage_switch; > > host->mmc->caps = MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED | > - MMC_CAP_ERASE | MMC_CAP_CMD23; > + MMC_CAP_ERASE | MMC_CAP_CMD23 | MMC_CAP_WAIT_WHILE_BUSY; > ret = mmc_of_parse(host->mmc); > if (ret) > goto pltfm_free; >
