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| author | Joonyoung Shim <jy0922.shim@samsung.com> | 2013-04-26 15:35:22 +0900 |
|---|---|---|
| committer | Chanho Park <chanho61.park@samsung.com> | 2014-11-18 11:43:41 +0900 |
| commit | 5eb418b5bb5a279f6f96f0ba29f4374e119372c7 (patch) | |
| tree | 127acda20a1e710388a635cf79820589ce7157c7 /drivers/mmc/host | |
| parent | 5979da9baf4695099845219c470aad85bfa59366 (diff) | |
| download | linux-3.10-5eb418b5bb5a279f6f96f0ba29f4374e119372c7.tar.gz linux-3.10-5eb418b5bb5a279f6f96f0ba29f4374e119372c7.tar.bz2 linux-3.10-5eb418b5bb5a279f6f96f0ba29f4374e119372c7.zip | |
mmc: dw_mmc: clear IDSTS register when initialize IDMAC
If pending interrupt for IDMAC exists when initialize IDMAC, it will
call interrupt handler unnecessarily.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host')
| -rw-r--r-- | drivers/mmc/host/dw_mmc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 0652690f2d6..b10e5e12b2a 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -51,6 +51,11 @@ #define DW_MCI_DMA_THRESHOLD 16 #ifdef CONFIG_MMC_DW_IDMAC +#define IDMAC_INT_CLR (SDMMC_IDMAC_INT_AI | SDMMC_IDMAC_INT_NI | \ + SDMMC_IDMAC_INT_CES | SDMMC_IDMAC_INT_DU | \ + SDMMC_IDMAC_INT_FBE | SDMMC_IDMAC_INT_RI | \ + SDMMC_IDMAC_INT_TI) + struct idmac_desc { u32 des0; /* Control Descriptor */ #define IDMAC_DES0_DIC BIT(1) @@ -433,6 +438,7 @@ static int dw_mci_idmac_init(struct dw_mci *host) mci_writel(host, BMOD, SDMMC_IDMAC_SWRESET); /* Mask out interrupts - get Tx & Rx complete only */ + mci_writel(host, IDSTS, IDMAC_INT_CLR); mci_writel(host, IDINTEN, SDMMC_IDMAC_INT_NI | SDMMC_IDMAC_INT_RI | SDMMC_IDMAC_INT_TI); |