diff options
Diffstat (limited to 'target/linux/brcm2708/patches-3.10/0018-Use-ndelay-rather-than-udelay.-Thanks-lb.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-3.10/0018-Use-ndelay-rather-than-udelay.-Thanks-lb.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-3.10/0018-Use-ndelay-rather-than-udelay.-Thanks-lb.patch b/target/linux/brcm2708/patches-3.10/0018-Use-ndelay-rather-than-udelay.-Thanks-lb.patch new file mode 100644 index 0000000000..00f04d816e --- /dev/null +++ b/target/linux/brcm2708/patches-3.10/0018-Use-ndelay-rather-than-udelay.-Thanks-lb.patch @@ -0,0 +1,44 @@ +From a56370b5a103f3949c5ed2997a971e1949a15132 Mon Sep 17 00:00:00 2001 +From: popcornmix <popcornmix@gmail.com> +Date: Fri, 22 Jun 2012 12:57:42 +0100 +Subject: [PATCH 018/174] Use ndelay rather than udelay. Thanks lb + +--- + drivers/mmc/host/sdhci-bcm2708.c | 8 ++++---- + 1 file changed, 4 insertions(+), 4 deletions(-) + +--- a/drivers/mmc/host/sdhci-bcm2708.c ++++ b/drivers/mmc/host/sdhci-bcm2708.c +@@ -249,14 +249,14 @@ static void sdhci_bcm2708_raw_writel(str + if (now == last_write_hpt || now == last_write_hpt+1) { + /* we can't guarantee any significant time has + * passed - we'll have to wait anyway ! */ +- udelay((ns_2clk+1000-1)/1000); ++ ndelay(ns_2clk); + } else + { + /* we must have waited at least this many ns: */ + unsigned int ns_wait = HPTIME_CLK_NS * + (last_write_hpt - now - 1); + if (ns_wait < ns_2clk) +- udelay((ns_2clk-ns_wait+500)/1000); ++ ndelay(ns_2clk - ns_wait); + } + last_write_hpt = now; + } +@@ -272,13 +272,13 @@ static void sdhci_bcm2708_raw_writel(str + ier &= ~SDHCI_INT_DATA_TIMEOUT; + writel(ier, host->ioaddr + SDHCI_SIGNAL_ENABLE); + timeout_disabled = true; +- udelay((ns_2clk+1000-1)/1000); ++ ndelay(ns_2clk); + } else if (timeout_disabled) { + ier = readl(host->ioaddr + SDHCI_SIGNAL_ENABLE); + ier |= SDHCI_INT_DATA_TIMEOUT; + writel(ier, host->ioaddr + SDHCI_SIGNAL_ENABLE); + timeout_disabled = false; +- udelay((ns_2clk+1000-1)/1000); ++ ndelay(ns_2clk); + } + #endif + writel(val, host->ioaddr + reg); |