From: yong mao <yong.mao@xxxxxxxxxxxx> msdc_card_busy only need check if the data0 is low. In sdio data1 irq mode, data1 may be low because of interruption. Signed-off-by: Yong Mao <yong.mao@xxxxxxxxxxxx> Signed-off-by: Chaotian Jing <chaotian.jing@xxxxxxxxxxxx> --- drivers/mmc/host/mtk-sd.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c index 10ef2ae..80ba034 100644 --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -1074,11 +1074,8 @@ static int msdc_card_busy(struct mmc_host *mmc) struct msdc_host *host = mmc_priv(mmc); u32 status = readl(host->base + MSDC_PS); - /* check if any pin between dat[0:3] is low */ - if (((status >> 16) & 0xf) != 0xf) - return 1; - - return 0; + /* only check if data0 is low */ + return !(status & BIT(16)); } static void msdc_request_timeout(struct work_struct *work) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
