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From: Hiren Panchasara <hiren@FreeBSD.org>
Date: Fri, 17 May 2013 17:16:29 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r250743 - stable/8/sys/x86/cpufreq
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Author: hiren
Date: Fri May 17 17:16:29 2013
New Revision: 250743
URL: http://svnweb.freebsd.org/changeset/base/250743

Log:
  MFC: r250487
  
  Adding a detach method to p4tcc driver.
  
  PR:		118739
  Submitted by:	Dan Lukes <dan@obluda.cz> (earlier version)
  Reviewed by:	jhb
  Approved by:	sbruno (mentor)

Modified:
  stable/8/sys/x86/cpufreq/p4tcc.c
Directory Properties:
  stable/8/   (props changed)
  stable/8/sys/   (props changed)
  stable/8/sys/x86/   (props changed)

Modified: stable/8/sys/x86/cpufreq/p4tcc.c
==============================================================================
--- stable/8/sys/x86/cpufreq/p4tcc.c	Fri May 17 15:20:45 2013	(r250742)
+++ stable/8/sys/x86/cpufreq/p4tcc.c	Fri May 17 17:16:29 2013	(r250743)
@@ -73,6 +73,7 @@ static int	p4tcc_features(driver_t *driv
 static void	p4tcc_identify(driver_t *driver, device_t parent);
 static int	p4tcc_probe(device_t dev);
 static int	p4tcc_attach(device_t dev);
+static int	p4tcc_detach(device_t dev);
 static int	p4tcc_settings(device_t dev, struct cf_setting *sets,
 		    int *count);
 static int	p4tcc_set(device_t dev, const struct cf_setting *set);
@@ -84,6 +85,7 @@ static device_method_t p4tcc_methods[] =
 	DEVMETHOD(device_identify,	p4tcc_identify),
 	DEVMETHOD(device_probe,		p4tcc_probe),
 	DEVMETHOD(device_attach,	p4tcc_attach),
+	DEVMETHOD(device_detach,	p4tcc_detach),
 
 	/* cpufreq interface */
 	DEVMETHOD(cpufreq_drv_set,	p4tcc_set),
@@ -213,6 +215,24 @@ p4tcc_attach(device_t dev)
 }
 
 static int
+p4tcc_detach(device_t dev)
+{
+	struct cf_setting set;
+	int error;
+
+	error = cpufreq_unregister(dev);
+	if (error)
+		return (error);
+
+	/*
+	 * Before we finish detach, switch to Automatic mode.
+	 */
+	set.freq = 10000;
+	p4tcc_set(dev, &set);
+	return(0);
+}
+
+static int
 p4tcc_settings(device_t dev, struct cf_setting *sets, int *count)
 {
 	struct p4tcc_softc *sc;