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authorDavid Woodhouse <David.Woodhouse@intel.com>2012-10-09 16:03:21 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2012-10-09 16:04:25 +0200
commitffe315012510165ce82e4dd4767f0a5dba9edbf7 (patch)
treef601cd980af9d0ced5ca9aedecef4fa0d2ca0e15 /arch/microblaze/kernel/reset.c
parentmtd: nand: detect Samsung K9GBG08U0A, K9GAG08U0F ID (diff)
parentUAPI: (Scripted) Disintegrate include/mtd (diff)
downloadlinux-ffe315012510165ce82e4dd4767f0a5dba9edbf7.tar.xz
linux-ffe315012510165ce82e4dd4767f0a5dba9edbf7.zip
Merge tag 'disintegrate-mtd-20121009' of git://git.infradead.org/users/dhowells/linux-headers
UAPI Disintegration 2012-10-09 Conflicts: MAINTAINERS arch/arm/configs/bcmring_defconfig arch/arm/mach-imx/clk-imx51-imx53.c drivers/mtd/nand/Kconfig drivers/mtd/nand/bcm_umi_nand.c drivers/mtd/nand/nand_bcm_umi.h drivers/mtd/nand/orion_nand.c
Diffstat (limited to 'arch/microblaze/kernel/reset.c')
-rw-r--r--arch/microblaze/kernel/reset.c21
1 files changed, 12 insertions, 9 deletions
diff --git a/arch/microblaze/kernel/reset.c b/arch/microblaze/kernel/reset.c
index 88a01636f785..2e5079ab53d2 100644
--- a/arch/microblaze/kernel/reset.c
+++ b/arch/microblaze/kernel/reset.c
@@ -26,13 +26,14 @@ void of_platform_reset_gpio_probe(void)
"hard-reset-gpios", 0);
if (!gpio_is_valid(handle)) {
- printk(KERN_INFO "Skipping unavailable RESET gpio %d (%s)\n",
+ pr_info("Skipping unavailable RESET gpio %d (%s)\n",
handle, "reset");
+ return;
}
ret = gpio_request(handle, "reset");
if (ret < 0) {
- printk(KERN_INFO "GPIO pin is already allocated\n");
+ pr_info("GPIO pin is already allocated\n");
return;
}
@@ -49,7 +50,7 @@ void of_platform_reset_gpio_probe(void)
/* Setup output direction */
gpio_set_value(handle, 0);
- printk(KERN_INFO "RESET: Registered gpio device: %d, current val: %d\n",
+ pr_info("RESET: Registered gpio device: %d, current val: %d\n",
handle, reset_val);
return;
err:
@@ -60,7 +61,10 @@ err:
static void gpio_system_reset(void)
{
- gpio_set_value(handle, 1 - reset_val);
+ if (gpio_is_valid(handle))
+ gpio_set_value(handle, 1 - reset_val);
+ else
+ pr_notice("Reset GPIO unavailable - halting!\n");
}
#else
#define gpio_system_reset() do {} while (0)
@@ -72,30 +76,29 @@ void of_platform_reset_gpio_probe(void)
void machine_restart(char *cmd)
{
- printk(KERN_NOTICE "Machine restart...\n");
+ pr_notice("Machine restart...\n");
gpio_system_reset();
- dump_stack();
while (1)
;
}
void machine_shutdown(void)
{
- printk(KERN_NOTICE "Machine shutdown...\n");
+ pr_notice("Machine shutdown...\n");
while (1)
;
}
void machine_halt(void)
{
- printk(KERN_NOTICE "Machine halt...\n");
+ pr_notice("Machine halt...\n");
while (1)
;
}
void machine_power_off(void)
{
- printk(KERN_NOTICE "Machine power off...\n");
+ pr_notice("Machine power off...\n");
while (1)
;
}