mmc: dw_mmc: miscaculated the fifo-depth with wrong bit operation

In FIFOTH register, the RX_WMark field (bits[27:16]) defaults to
FIFO_DEPTH - 1. When reading it, bits[26:16] were being used, so
fix it to use the mask 0xfff instead of 0x7ff.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 94e223825a45..0e342793ff14 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -1949,7 +1949,7 @@ static int dw_mci_probe(struct platform_device *pdev)
                  * should put it in the platform data.
                  */
                 fifo_size = mci_readl(host, FIFOTH);
-                fifo_size = 1 + ((fifo_size >> 16) & 0x7ff);
+                fifo_size = 1 + ((fifo_size >> 16) & 0xfff);
         } else {
                 fifo_size = host->pdata->fifo_depth;
         }