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Adding a detach method to p4tcc driver.

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PR:	118739
Submitted by:	Dan Lukes <dan@obluda.cz> (earlier version)
Reviewed by:	jhb
Approved by:	sbruno (mentor)
MFC after:	1 week
This commit is contained in:
Hiren Panchasara 2013-05-10 22:43:27 +00:00
parent 4262755097
commit 46b29ff94a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=250487
1 changed files with 20 additions and 0 deletions
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20
sys/x86/cpufreq/p4tcc.c
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@ -73,6 +73,7 @@ static int p4tcc_features(driver_t *driver, u_int *features);
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),
@ -212,6 +214,24 @@ p4tcc_attach(device_t dev)
return (0);
}
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)
{