From: Dmitry Antipov <dmitry.antipov@linaro.org>
To: linaro-dev@lists.linaro.org
Cc: patches@linaro.org, linux-omap@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] omap: use usleep_range() instead of mdelay()/udelay()
Date: Wed, 21 Dec 2011 11:00:54 +0400 [thread overview]
Message-ID: <4EF18426.3040805@linaro.org> (raw)
From e4db974edb5c46360465462518a88b83f1bdedf6 Mon Sep 17 00:00:00 2001
From: Dmitry Antipov <dmitry.antipov@linaro.org>
Date: Wed, 21 Dec 2011 10:57:08 +0400
Subject: [PATCH] omap: use usleep_range() instead of mdelay()/udelay()
---
arch/arm/mach-omap2/omap_phy_internal.c | 2 +-
arch/arm/mach-omap2/vc.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c b/arch/arm/mach-omap2/omap_phy_internal.c
index 58775e3..e5dff64 100644
--- a/arch/arm/mach-omap2/omap_phy_internal.c
+++ b/arch/arm/mach-omap2/omap_phy_internal.c
@@ -145,7 +145,7 @@ int omap4430_phy_suspend(struct device *dev, int suspend)
/* power on the phy */
if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
__raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
- mdelay(200);
+ usleep_range(200000, 201000);
}
/* restore the context */
diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c
index 031d116..57f44d5 100644
--- a/arch/arm/mach-omap2/vc.c
+++ b/arch/arm/mach-omap2/vc.c
@@ -151,7 +151,7 @@ void omap_vc_post_scale(struct voltagedomain *voltdm,
/* SMPS slew rate / step size. 2us added as buffer. */
smps_delay = ((smps_steps * voltdm->pmic->step_size) /
voltdm->pmic->slew_rate) + 2;
- udelay(smps_delay);
+ usleep_range(smps_delay, smps_delay + 10);
}
/* vc_bypass_scale - VC bypass method of voltage scaling */
--
1.7.7.4
next reply other threads:[~2011-12-21 7:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-21 7:00 Dmitry Antipov [this message]
2012-01-03 23:58 ` [PATCH] omap: use usleep_range() instead of mdelay()/udelay() Kevin Hilman
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