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authorGabor Juhos <juhosg@openwrt.org>2011-01-08 11:28:32 +0000
committerGabor Juhos <juhosg@openwrt.org>2011-01-08 11:28:32 +0000
commit0de8689b7093ff40983f48a433efe93074741013 (patch)
tree0df913a567f6508e768dc424c0c49f10d25a8cfe /target/linux/ar71xx
parent271bb8385b684074f1f9947cdfcae528d9456c64 (diff)
downloadmtk-20170518-0de8689b7093ff40983f48a433efe93074741013.zip
mtk-20170518-0de8689b7093ff40983f48a433efe93074741013.tar.gz
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ar71xx: use spinlock in ar71xx_device_{start,stop}
SVN-Revision: 24929
Diffstat (limited to 'target/linux/ar71xx')
-rw-r--r--target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c38
1 files changed, 20 insertions, 18 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c b/target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c
index 6c88985..ed31274 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c
@@ -13,10 +13,12 @@
#include <linux/module.h>
#include <linux/types.h>
#include <linux/mutex.h>
+#include <linux/spinlock.h>
#include <asm/mach-ar71xx/ar71xx.h>
static DEFINE_MUTEX(ar71xx_flash_mutex);
+static DEFINE_SPINLOCK(ar71xx_device_lock);
void __iomem *ar71xx_ddr_base;
EXPORT_SYMBOL_GPL(ar71xx_ddr_base);
@@ -43,30 +45,30 @@ void ar71xx_device_stop(u32 mask)
case AR71XX_SOC_AR7130:
case AR71XX_SOC_AR7141:
case AR71XX_SOC_AR7161:
- local_irq_save(flags);
+ spin_lock_irqsave(&ar71xx_device_lock, flags);
t = ar71xx_reset_rr(AR71XX_RESET_REG_RESET_MODULE);
ar71xx_reset_wr(AR71XX_RESET_REG_RESET_MODULE, t | mask);
- local_irq_restore(flags);
+ spin_unlock_irqrestore(&ar71xx_device_lock, flags);
break;
case AR71XX_SOC_AR7240:
case AR71XX_SOC_AR7241:
case AR71XX_SOC_AR7242:
mask_inv = mask & RESET_MODULE_USB_OHCI_DLL_7240;
- local_irq_save(flags);
+ spin_lock_irqsave(&ar71xx_device_lock, flags);
t = ar71xx_reset_rr(AR724X_RESET_REG_RESET_MODULE);
t |= mask;
t &= ~mask_inv;
ar71xx_reset_wr(AR724X_RESET_REG_RESET_MODULE, t);
- local_irq_restore(flags);
+ spin_unlock_irqrestore(&ar71xx_device_lock, flags);
break;
case AR71XX_SOC_AR9130:
case AR71XX_SOC_AR9132:
- local_irq_save(flags);
+ spin_lock_irqsave(&ar71xx_device_lock, flags);
t = ar71xx_reset_rr(AR91XX_RESET_REG_RESET_MODULE);
ar71xx_reset_wr(AR91XX_RESET_REG_RESET_MODULE, t | mask);
- local_irq_restore(flags);
+ spin_unlock_irqrestore(&ar71xx_device_lock, flags);
break;
default:
@@ -85,30 +87,30 @@ void ar71xx_device_start(u32 mask)
case AR71XX_SOC_AR7130:
case AR71XX_SOC_AR7141:
case AR71XX_SOC_AR7161:
- local_irq_save(flags);
+ spin_lock_irqsave(&ar71xx_device_lock, flags);
t = ar71xx_reset_rr(AR71XX_RESET_REG_RESET_MODULE);
ar71xx_reset_wr(AR71XX_RESET_REG_RESET_MODULE, t & ~mask);
- local_irq_restore(flags);
+ spin_unlock_irqrestore(&ar71xx_device_lock, flags);
break;
case AR71XX_SOC_AR7240:
case AR71XX_SOC_AR7241:
case AR71XX_SOC_AR7242:
mask_inv = mask & RESET_MODULE_USB_OHCI_DLL_7240;
- local_irq_save(flags);
+ spin_lock_irqsave(&ar71xx_device_lock, flags);
t = ar71xx_reset_rr(AR724X_RESET_REG_RESET_MODULE);
t &= ~mask;
t |= mask_inv;
ar71xx_reset_wr(AR724X_RESET_REG_RESET_MODULE, t);
- local_irq_restore(flags);
+ spin_unlock_irqrestore(&ar71xx_device_lock, flags);
break;
case AR71XX_SOC_AR9130:
case AR71XX_SOC_AR9132:
- local_irq_save(flags);
+ spin_lock_irqsave(&ar71xx_device_lock, flags);
t = ar71xx_reset_rr(AR91XX_RESET_REG_RESET_MODULE);
ar71xx_reset_wr(AR91XX_RESET_REG_RESET_MODULE, t & ~mask);
- local_irq_restore(flags);
+ spin_unlock_irqrestore(&ar71xx_device_lock, flags);
break;
default:
@@ -126,24 +128,24 @@ int ar71xx_device_stopped(u32 mask)
case AR71XX_SOC_AR7130:
case AR71XX_SOC_AR7141:
case AR71XX_SOC_AR7161:
- local_irq_save(flags);
+ spin_lock_irqsave(&ar71xx_device_lock, flags);
t = ar71xx_reset_rr(AR71XX_RESET_REG_RESET_MODULE);
- local_irq_restore(flags);
+ spin_unlock_irqrestore(&ar71xx_device_lock, flags);
break;
case AR71XX_SOC_AR7240:
case AR71XX_SOC_AR7241:
case AR71XX_SOC_AR7242:
- local_irq_save(flags);
+ spin_lock_irqsave(&ar71xx_device_lock, flags);
t = ar71xx_reset_rr(AR724X_RESET_REG_RESET_MODULE);
- local_irq_restore(flags);
+ spin_unlock_irqrestore(&ar71xx_device_lock, flags);
break;
case AR71XX_SOC_AR9130:
case AR71XX_SOC_AR9132:
- local_irq_save(flags);
+ spin_lock_irqsave(&ar71xx_device_lock, flags);
t = ar71xx_reset_rr(AR91XX_RESET_REG_RESET_MODULE);
- local_irq_restore(flags);
+ spin_unlock_irqrestore(&ar71xx_device_lock, flags);
break;
default: