diff options
| author | Nicolas Pitre <nicolas.pitre@linaro.org> | 2012-11-22 13:33:35 -0500 |
|---|---|---|
| committer | Nicolas Pitre <nicolas.pitre@linaro.org> | 2013-05-13 19:03:33 -0400 |
| commit | 7ce9825b9e6fbc9654a473398d254fab0f1ecf85 (patch) | |
| tree | e44fbedc3f5f513afdd501f3e2649bf2cf9c5bad | |
| parent | d817391afff22c9686bcad31ad13fdde2b134773 (diff) | |
ARM: bL_switcher: add kernel cmdline param to disable the switcher on boot
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>
| -rw-r--r-- | arch/arm/common/bL_switcher.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c index efff948eecb..00a4ce23d91 100644 --- a/arch/arm/common/bL_switcher.c +++ b/arch/arm/common/bL_switcher.c @@ -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/cacheflush.h> @@ -529,6 +530,9 @@ 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; @@ -538,9 +542,11 @@ 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(); |