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omap: use usleep_range() instead of mdelay()/udelay()

PATCH In review Dmitry Antipov 2 participants 2 messages Dec 21, 2011 – Jan 3, 2012

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Arm (32-bit) Arm sub-architectures OMAP2+ support
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Dmitry Antipov

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#0 lore raw

PATCH 1/1 omap: use usleep_range() instead of mdelay()/udelay()

From e4db974edb5c46360465462518a88b83f1bdedf6 Mon Sep 17 00:00:00 2001
From: Dmitry Antipov <[email protected]>
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(-)
arch/arm/mach-omap2/omap_phy_internal.c +1 -1
index 58775e3..e5dff64 100644
@@ -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 */
arch/arm/mach-omap2/vc.c +1 -1
index 031d116..57f44d5 100644
@@ -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 */
Signature · 1 line
1.7.7.4
#1 lore raw
Quoted 4 lines · Dmitry Antipov

From e4db974edb5c46360465462518a88b83f1bdedf6 Mon Sep 17 00:00:00 2001
From: Dmitry Antipov <[email protected]>
Date: Wed, 21 Dec 2011 10:57:08 +0400
Subject: [PATCH] omap: use usleep_range() instead of mdelay()/udelay()

Please include a signoff and a descriptive changelog (describing why.)

Thanks,

Kevin

Quoted 31 lines
---
 arch/arm/mach-omap2/omap_phy_internal.c |    2 +-
 arch/arm/mach-omap2/vc.c                |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
arch/arm/mach-omap2/omap_phy_internal.c +1 -1
index 58775e3..e5dff64 100644
@@ -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 */
arch/arm/mach-omap2/vc.c +1 -1
index 031d116..57f44d5 100644
@@ -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 */