diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/usdhi6rol0.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mmc/host/usdhi6rol0.c b/drivers/mmc/host/usdhi6rol0.c index e34a5e6d69a2..99515be6e5e5 100644 --- a/drivers/mmc/host/usdhi6rol0.c +++ b/drivers/mmc/host/usdhi6rol0.c @@ -1186,6 +1186,15 @@ static int usdhi6_sig_volt_switch(struct mmc_host *mmc, struct mmc_ios *ios) return ret; } +static int usdhi6_card_busy(struct mmc_host *mmc) +{ + struct usdhi6_host *host = mmc_priv(mmc); + u32 tmp = usdhi6_read(host, USDHI6_SD_INFO2); + + /* Card is busy if it is pulling dat[0] low */ + return !(tmp & USDHI6_SD_INFO2_SDDAT0); +} + static const struct mmc_host_ops usdhi6_ops = { .request = usdhi6_request, .set_ios = usdhi6_set_ios, @@ -1193,6 +1202,7 @@ static const struct mmc_host_ops usdhi6_ops = { .get_ro = usdhi6_get_ro, .enable_sdio_irq = usdhi6_enable_sdio_irq, .start_signal_voltage_switch = usdhi6_sig_volt_switch, + .card_busy = usdhi6_card_busy, }; /* State machine handlers */ |