target/linux/ar71xx/patches-3.3/503-MIPS-ath79-add-flash-acquire-release.patch

   1 --- a/arch/mips/ath79/common.c
   2 +++ b/arch/mips/ath79/common.c
   3 @@ -22,6 +22,7 @@
   4  #include "common.h"
   5
   6  static DEFINE_SPINLOCK(ath79_device_reset_lock);
   7 +static DEFINE_MUTEX(ath79_flash_mutex);
   8
   9  u32 ath79_cpu_freq;
  10  EXPORT_SYMBOL_GPL(ath79_cpu_freq);
  11 @@ -109,3 +110,16 @@ void ath79_device_reset_clear(u32 mask)
  12         spin_unlock_irqrestore(&ath79_device_reset_lock, flags);
  13  }
  14  EXPORT_SYMBOL_GPL(ath79_device_reset_clear);
  15 +
  16 +void ath79_flash_acquire(void)
  17 +{
  18 +       mutex_lock(&ath79_flash_mutex);
  19 +}
  20 +EXPORT_SYMBOL_GPL(ath79_flash_acquire);
  21 +
  22 +void ath79_flash_release(void)
  23 +{
  24 +       mutex_unlock(&ath79_flash_mutex);
  25 +}
  26 +EXPORT_SYMBOL_GPL(ath79_flash_release);
  27 +
  28 --- a/arch/mips/include/asm/mach-ath79/ath79.h
  29 +++ b/arch/mips/include/asm/mach-ath79/ath79.h
  30 @@ -137,4 +137,7 @@ static inline u32 ath79_reset_rr(unsigne
  31  void ath79_device_reset_set(u32 mask);
  32  void ath79_device_reset_clear(u32 mask);
  33
  34 +void ath79_flash_acquire(void);
  35 +void ath79_flash_release(void);
  36 +
  37  #endif /* __ASM_MACH_ATH79_H */