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ARM: EXYNOS4: Increase reset delay for USB HOST PHY
authorYulgon Kim <yulgon.kim@samsung.com>
Thu, 18 Aug 2011 11:40:24 +0000 (20:40 +0900)
committerKukjin Kim <kgene.kim@samsung.com>
Fri, 19 Aug 2011 11:57:39 +0000 (20:57 +0900)
This patch increases reset delay from 50 usec to 80 usec for
USB HOST PHY. In order to reset USB HOST PHY controller properly,
a little extra time is required during its reset cycle.

Signed-off-by: Yulgon Kim <yulgon.kim@samsung.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
arch/arm/mach-exynos4/setup-usb-phy.c patch | blob | blame | history

diff --git a/arch/arm/mach-exynos4/setup-usb-phy.c b/arch/arm/mach-exynos4/setup-usb-phy.c
index 0883c1b824b94df5cdca0f7cabf76812fb734df0..39aca045f6604ae1b7c4125ee85646ef34df95f0 100644 (file)
--- a/arch/arm/mach-exynos4/setup-usb-phy.c
+++ b/arch/arm/mach-exynos4/setup-usb-phy.c
@@ -82,7 +82,7 @@ static int exynos4_usb_phy1_init(struct platform_device *pdev)
 
        rstcon &= ~(HOST_LINK_PORT_SWRST_MASK | PHY1_SWRST_MASK);
        writel(rstcon, EXYNOS4_RSTCON);
-       udelay(50);
+       udelay(80);
 
        clk_disable(otg_clk);
        clk_put(otg_clk);