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openwrt-xburst/target/linux/coldfire/patches/046-Convert-rtc-drivers-to-use-the-alarm_irq_enable-meth.patch

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From ab2284cd4730b9ea29937ee3a0ef1bcdc6b3159d Mon Sep 17 00:00:00 2001
From: Alison Wang <b18965@freescale.com>
Date: Thu, 4 Aug 2011 09:59:54 +0800
Subject: [PATCH 46/52] Convert rtc drivers to use the alarm_irq_enable method
Old rtc drivers use the ioctl method instead of the alarm_irq_enable
method for enabling alarm interupts. With the new virtualized RTC
rework, its important for drivers to use the alarm_irq_enable instead.
This patch converts the drivers that use the AIE ioctl method to
use the alarm_irq_enable method.
Signed-off-by: Alison Wang <b18965@freescale.com>
---
drivers/rtc/rtc-m5441x.c | 22 +++++++++++-----------
drivers/rtc/rtc-mcf.c | 23 +++++++++++------------
2 files changed, 22 insertions(+), 23 deletions(-)
--- a/drivers/rtc/rtc-m5441x.c
+++ b/drivers/rtc/rtc-m5441x.c
@@ -400,17 +400,6 @@ static int mcf_rtc_ioctl(struct device *
writew((readw(MCF_RTC_IER) | PIE_BIT_DEF[i][1]), MCF_RTC_IER);
spin_unlock_irq(&rtc_lock);
return 0;
- case RTC_AIE_OFF:
- spin_lock_irq(&rtc_lock);
- writew((readw(MCF_RTC_IER) & ~MCF_RTC_ISR_ALM), MCF_RTC_IER);
- spin_unlock_irq(&rtc_lock);
- return 0;
-
- case RTC_AIE_ON:
- spin_lock_irq(&rtc_lock);
- writew((readw(MCF_RTC_IER) | MCF_RTC_ISR_ALM), MCF_RTC_IER);
- spin_unlock_irq(&rtc_lock);
- return 0;
case RTC_UIE_OFF: /* UIE is for the 1Hz interrupt */
spin_lock_irq(&rtc_lock);
@@ -427,6 +416,16 @@ static int mcf_rtc_ioctl(struct device *
return -ENOIOCTLCMD;
}
+static int mcf_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
+{
+ if (enabled)
+ writew((readw(MCF_RTC_IER) | MCF_RTC_ISR_ALM), MCF_RTC_IER);
+ else
+ writew((readw(MCF_RTC_IER) & ~MCF_RTC_ISR_ALM), MCF_RTC_IER);
+
+ return 0;
+}
+
/*!
* This function reads the current RTC time into tm in Gregorian date.
*
@@ -534,6 +533,7 @@ static struct rtc_class_ops mcf_rtc_ops
.set_time = mcf_rtc_set_time,
.read_alarm = mcf_rtc_read_alarm,
.set_alarm = mcf_rtc_set_alarm,
+ .alarm_irq_enable = mcf_rtc_alarm_irq_enable,
};
static int __devinit mcf_rtc_probe(struct platform_device *pdev)
--- a/drivers/rtc/rtc-mcf.c
+++ b/drivers/rtc/rtc-mcf.c
@@ -298,18 +298,6 @@ static int mcf_rtc_ioctl(struct device *
writel((readl(MCF_RTC_IER) | PIE_BIT_DEF[i][1]), MCF_RTC_IER);
spin_unlock_irq(&rtc_lock);
return 0;
- case RTC_AIE_OFF:
- spin_lock_irq(&rtc_lock);
- writel((readl(MCF_RTC_IER) & ~MCF_RTC_ISR_ALM), MCF_RTC_IER);
- spin_unlock_irq(&rtc_lock);
- return 0;
-
- case RTC_AIE_ON:
- spin_lock_irq(&rtc_lock);
- writel((readl(MCF_RTC_IER) | MCF_RTC_ISR_ALM), MCF_RTC_IER);
- spin_unlock_irq(&rtc_lock);
- return 0;
-
case RTC_UIE_OFF: /* UIE is for the 1Hz interrupt */
spin_lock_irq(&rtc_lock);
writel((readl(MCF_RTC_IER) & ~MCF_RTC_ISR_1HZ), MCF_RTC_IER);
@@ -325,6 +313,16 @@ static int mcf_rtc_ioctl(struct device *
return -ENOIOCTLCMD;
}
+static int mcf_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
+{
+ if (enabled)
+ writel((readl(MCF_RTC_IER) | MCF_RTC_ISR_ALM), MCF_RTC_IER);
+ else
+ writel((readl(MCF_RTC_IER) & ~MCF_RTC_ISR_ALM), MCF_RTC_IER);
+
+ return 0;
+}
+
/*!
* This function reads the current RTC time into tm in Gregorian date.
*
@@ -466,6 +464,7 @@ static struct rtc_class_ops mcf_rtc_ops
.read_alarm = mcf_rtc_read_alarm,
.set_alarm = mcf_rtc_set_alarm,
.proc = mcf_rtc_proc,
+ .alarm_irq_enable = mcf_rtc_alarm_irq_enable,
};
static int __devinit mcf_rtc_probe(struct platform_device *pdev)