If pending interrupt for IDMAC exists when initialize IDMAC, it will call interrupt handler unnecessarily.
Signed-off-by: Joonyoung Shim <[email protected]> --- Changes from previous patch v1: - Change subject and contents of commit - Define IDMAC_INT_CLR macro to clear IDSTS register - It moved to clear IDSTS register in dw_mci_idmac_init() drivers/mmc/host/dw_mmc.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index bc3a1bc..4abb3f8 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); -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
