The SD spec version 6.0 section 6.4.1.5 requires that Vdd must be lowered to less than 0.5V for a minimum of 1 ms when powering off a card. Increase our wait to 15 ms so that voltage has time to drain down to 0.5V. Signed-off-by: Kyle Roeschley <kyle.roeschley@xxxxxx> Signed-off-by: Brad Mouring <brad.mouring@xxxxxx> Signed-off-by: Erick Shepherd <erick.shepherd@xxxxxx> --- drivers/mmc/host/sdhci.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index f4a7733a8ad2..b15a1f107549 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2415,6 +2415,9 @@ void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) else sdhci_set_power(host, ios->power_mode, ios->vdd); + if (ios->power_mode == MMC_POWER_OFF) + mdelay(15); + if (host->ops->platform_send_init_74_clocks) host->ops->platform_send_init_74_clocks(host, ios->power_mode); -- 2.43.0
