ar71xx: fix wlan LED on the TL-WR741 board

[openwrt/svn-archive/archive.git] / target / linux / ar71xx / files / arch / mips / ar71xx / ar71xx.c

diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c b/target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c
index 5d05562de0e75b586c6517ae5fd741e316b05c16..ed31274182396414475037975d0305caff239eef 100644 (file)
--- 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:
@@ -157,10 +159,12 @@ EXPORT_SYMBOL_GPL(ar71xx_device_stopped);
 void ar71xx_ddr_flush(u32 reg)
 {
        ar71xx_ddr_wr(reg, 1);
-       while ((ar71xx_ddr_rr(reg) & 0x1));
+       while ((ar71xx_ddr_rr(reg) & 0x1))
+               ;
 
        ar71xx_ddr_wr(reg, 1);
-       while ((ar71xx_ddr_rr(reg) & 0x1));
+       while ((ar71xx_ddr_rr(reg) & 0x1))
+               ;
 }
 EXPORT_SYMBOL_GPL(ar71xx_ddr_flush);