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ARM: bL_switcher: add kernel cmdline param to disable the switcher on boot

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By adding no_bL_switcher to the kernel cmdline string, the switcher
won't be activated automatically at boot time.  It is still possible
to activate it later with:

	echo 1 > /sys/kernel/bL_switcher/active

Signed-off-by: Nicolas Pitre <nico@linaro.org>
This commit is contained in:
Nicolas Pitre 2012-11-22 13:33:35 -05:00
parent 6b7437aed1
commit c4821c0575
1 changed files with 9 additions and 3 deletions
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12
arch/arm/common/bL_switcher.c
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@ -26,6 +26,7 @@
#include <linux/string.h>
#include <linux/sysfs.h>
#include <linux/irqchip/arm-gic.h>
#include <linux/moduleparam.h>
#include <asm/smp_plat.h>
#include <asm/suspend.h>
@ -521,6 +522,9 @@ static int __init bL_switcher_sysfs_init(void)
#endif /* CONFIG_SYSFS */
static bool no_bL_switcher;
core_param(no_bL_switcher, no_bL_switcher, bool, 0644);
static int __init bL_switcher_init(void)
{
int ret;
@ -530,9 +534,11 @@ static int __init bL_switcher_init(void)
return -EINVAL;
}
ret = bL_switcher_enable();
if (ret)
return ret;
if (!no_bL_switcher) {
ret = bL_switcher_enable();
if (ret)
return ret;
}
#ifdef CONFIG_SYSFS
ret = bL_switcher_sysfs_init();