From d887874e0ead6a0b86b6046b872730c81c121352 Mon Sep 17 00:00:00 2001 From: Johan Rudholm Date: Mon, 28 Jan 2013 15:08:26 +0100 Subject: [PATCH] mmc: core: Add card_busy to host_ops This host_ops member is used to test if the card is signaling busy by pulling dat[0:3] low. Signed-off-by: Johan Rudholm Acked-by: Ulf Hansson Tested-by: Wei WANG Signed-off-by: Chris Ball --- include/linux/mmc/host.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 523d570..0373b0a 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -131,6 +131,9 @@ struct mmc_host_ops { int (*start_signal_voltage_switch)(struct mmc_host *host, struct mmc_ios *ios); + /* Check if the card is pulling dat[0:3] low */ + int (*card_busy)(struct mmc_host *host); + /* The tuning command opcode value is different for SD and eMMC cards */ int (*execute_tuning)(struct mmc_host *host, u32 opcode); void (*enable_preset_value)(struct mmc_host *host, bool enable); -- 2.7.4