mmc: mxs: use standard flag for broken card detection

Use the standard MMC_CAP_NEEDS_POLL flag rather than a custom broken_cd
flag. The original code used to just return true in the card detection
function for broken card detection. The MMC_CAP_NEEDS_POLL works different,
but was introduced for the same purpose, so assume the code works correct
now.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>

diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 374fca7..02210ce 100644 (file)
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -72,7 +72,6 @@ struct mxs_mmc_host {
        int                             wp_gpio;
        bool                            wp_inverted;
        bool                            cd_inverted;
-       bool                            broken_cd;
 };
 
 static int mxs_mmc_get_ro(struct mmc_host *mmc)
@@ -96,8 +95,7 @@ static int mxs_mmc_get_cd(struct mmc_host *mmc)
        struct mxs_mmc_host *host = mmc_priv(mmc);
        struct mxs_ssp *ssp = &host->ssp;
 
-       return host->broken_cd ||
-               !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
+       return !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
                  BM_SSP_STATUS_CARD_DETECT) ^ host->cd_inverted;
 }
 
@@ -652,7 +650,8 @@ static int mxs_mmc_probe(struct platform_device *pdev)
                mmc->caps |= MMC_CAP_4_BIT_DATA;
        else if (bus_width == 8)
                mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA;
-       host->broken_cd = of_property_read_bool(np, "broken-cd");
+       if (of_property_read_bool(np, "broken-cd"))
+               mmc->caps |= MMC_CAP_NEEDS_POLL;
        if (of_property_read_bool(np, "non-removable"))
                mmc->caps |= MMC_CAP_NONREMOVABLE;
        host->wp_gpio = of_get_named_gpio_flags(np, "wp-gpios", 0, &flags);