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mmc: dwmmc: Poll for iDMAC TX/RX interrupt

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Poll for iDMAC TX/RX interrupt before disable DMA.
This to prevent disable DMA before data is transfer
completed.

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
This commit is contained in:
Ley Foon Tan
2018-12-20 17:55:41 +08:00
committed by Marek Vasut
parent 473f55676a
commit 7997599e2d
2 changed files with 26 additions and 0 deletions
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7
include/dwmmc.h
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@@ -130,6 +130,13 @@
/* UHS register */
#define DWMCI_DDR_MODE (1 << 16)
/* Internal IDMAC interrupt defines */
#define DWMCI_IDINTEN_RI BIT(1)
#define DWMCI_IDINTEN_TI BIT(0)
#define DWMCI_IDINTEN_MASK (DWMCI_IDINTEN_TI | \
DWMCI_IDINTEN_RI)
/* quirks */
#define DWMCI_QUIRK_DISABLE_SMU (1 << 0)