mmc: sdhci-of-esdhc: support command with busy response expecting for TC

The IP versions older than 2.3 didn't support the command with busy response
which expect for TC bit set. But after the VVN2.3, eSDHC IP has supported it.

Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 63d219f57caebcd3a4cd0216ec17aca2500cb257..cfabc43a4ff27af3271308216c49de9e604f4738 100644 (file)
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -177,6 +177,9 @@ static void esdhc_of_platform_init(struct sdhci_host *host)
        vvn = (vvn & SDHCI_VENDOR_VER_MASK) >> SDHCI_VENDOR_VER_SHIFT;
        if (vvn == VENDOR_V_22)
                host->quirks2 |= SDHCI_QUIRK2_HOST_NO_CMD23;
+
+       if (vvn > VENDOR_V_22)
+               host->quirks &= ~SDHCI_QUIRK_NO_BUSY_IRQ;
 }
 
 static struct sdhci_ops sdhci_esdhc_ops = {