From 62ce34b0baedc283267e2dbc5d79ebef062dbda1 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 26 Jun 2014 15:50:00 +0100 Subject: mmc: sdhci: avoid double-delay while transitioning to 1.8V The MMC core in mmc_set_signal_voltage() already provides for the delay required to switch to 1.8V, so there is no need for drivers to perform this wait themselves. Signed-off-by: Russell King Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers/mmc/host/sdhci.c') diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 5cf4a864c3a4..ce092fbc9e47 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1768,9 +1768,6 @@ static int sdhci_do_start_signal_voltage_switch(struct sdhci_host *host, ctrl |= SDHCI_CTRL_VDD_180; sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); - /* Wait for 5ms */ - usleep_range(5000, 5500); - /* 1.8V regulator output should be stable within 5 ms */ ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); if (ctrl & SDHCI_CTRL_VDD_180) -- cgit v1.2.3