ar71xx: remove obsolete flash chip locking code

Signed-off-by: Felix Fietkau <nbd@nbd.name>

target/linux/ar71xx/patches-4.4/503-MIPS-ath79-add-flash-acquire-release.patch

---- a/arch/mips/ath79/common.c
-+++ b/arch/mips/ath79/common.c
-@@ -22,6 +22,7 @@
- #include "common.h"
- 
- static DEFINE_SPINLOCK(ath79_device_reset_lock);
-+static DEFINE_MUTEX(ath79_flash_mutex);
- 
- u32 ath79_cpu_freq;
- EXPORT_SYMBOL_GPL(ath79_cpu_freq);
-@@ -142,3 +143,16 @@ void ath79_device_reset_clear(u32 mask)
- 	spin_unlock_irqrestore(&ath79_device_reset_lock, flags);
- }
- EXPORT_SYMBOL_GPL(ath79_device_reset_clear);
-+
-+void ath79_flash_acquire(void)
-+{
-+	mutex_lock(&ath79_flash_mutex);
-+}
-+EXPORT_SYMBOL_GPL(ath79_flash_acquire);
-+
-+void ath79_flash_release(void)
-+{
-+	mutex_unlock(&ath79_flash_mutex);
-+}
-+EXPORT_SYMBOL_GPL(ath79_flash_release);
-+
---- a/arch/mips/include/asm/mach-ath79/ath79.h
-+++ b/arch/mips/include/asm/mach-ath79/ath79.h
-@@ -145,4 +145,7 @@ static inline u32 ath79_reset_rr(unsigne
- void ath79_device_reset_set(u32 mask);
- void ath79_device_reset_clear(u32 mask);
- 
-+void ath79_flash_acquire(void);
-+void ath79_flash_release(void);
-+
- #endif /* __ASM_MACH_ATH79_H */

target/linux/ar71xx/patches-4.4/504-MIPS-ath79-add-ath79_device_reset_get.patch

 --- a/arch/mips/include/asm/mach-ath79/ath79.h
 +++ b/arch/mips/include/asm/mach-ath79/ath79.h
-@@ -144,6 +144,7 @@ static inline u32 ath79_reset_rr(unsigne
+@@ -144,5 +144,6 @@ static inline u32 ath79_reset_rr(unsigne
  
  void ath79_device_reset_set(u32 mask);
  void ath79_device_reset_clear(u32 mask);
 +u32 ath79_device_reset_get(u32 mask);
  
- void ath79_flash_acquire(void);
- void ath79_flash_release(void);
+ #endif /* __ASM_MACH_ATH79_H */
 --- a/arch/mips/ath79/common.c
 +++ b/arch/mips/ath79/common.c
-@@ -144,6 +144,32 @@ void ath79_device_reset_clear(u32 mask)
+@@ -142,3 +142,29 @@ void ath79_device_reset_clear(u32 mask)
+ 	spin_unlock_irqrestore(&ath79_device_reset_lock, flags);
  }
  EXPORT_SYMBOL_GPL(ath79_device_reset_clear);
- 
++
 +u32 ath79_device_reset_get(u32 mask)
 +{
 +	unsigned long flags;
@@ -39,7 +39,3 @@
 +	return ret;
 +}
 +EXPORT_SYMBOL_GPL(ath79_device_reset_get);
-+
- void ath79_flash_acquire(void)
- {
- 	mutex_lock(&ath79_flash_mutex);

target/linux/ar71xx/patches-4.4/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch

@@ -147,7 +147,7 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
  	else
 --- a/arch/mips/ath79/common.c
 +++ b/arch/mips/ath79/common.c
-@@ -104,6 +104,8 @@ void ath79_device_reset_set(u32 mask)
+@@ -103,6 +103,8 @@ void ath79_device_reset_set(u32 mask)
  		reg = AR933X_RESET_REG_RESET_MODULE;
  	else if (soc_is_ar934x())
  		reg = AR934X_RESET_REG_RESET_MODULE;
@@ -156,7 +156,7 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
  	else if (soc_is_qca955x())
  		reg = QCA955X_RESET_REG_RESET_MODULE;
  	else
-@@ -132,6 +134,8 @@ void ath79_device_reset_clear(u32 mask)
+@@ -131,6 +133,8 @@ void ath79_device_reset_clear(u32 mask)
  		reg = AR933X_RESET_REG_RESET_MODULE;
  	else if (soc_is_ar934x())
  		reg = AR934X_RESET_REG_RESET_MODULE;

target/linux/ar71xx/patches-4.4/621-MIPS-ath79-add-support-for-QCA956x-SoC.patch

@@ -136,7 +136,7 @@
  
 --- a/arch/mips/ath79/common.c
 +++ b/arch/mips/ath79/common.c
-@@ -108,6 +108,8 @@ void ath79_device_reset_set(u32 mask)
+@@ -107,6 +107,8 @@ void ath79_device_reset_set(u32 mask)
  		reg = QCA953X_RESET_REG_RESET_MODULE;
  	else if (soc_is_qca955x())
  		reg = QCA955X_RESET_REG_RESET_MODULE;
@@ -145,7 +145,7 @@
  	else
  		panic("Reset register not defined for this SOC");
  
-@@ -138,6 +140,8 @@ void ath79_device_reset_clear(u32 mask)
+@@ -137,6 +139,8 @@ void ath79_device_reset_clear(u32 mask)
  		reg = QCA953X_RESET_REG_RESET_MODULE;
  	else if (soc_is_qca955x())
  		reg = QCA955X_RESET_REG_RESET_MODULE;
@@ -154,7 +154,7 @@
  	else
  		panic("Reset register not defined for this SOC");
  
-@@ -164,6 +168,8 @@ u32 ath79_device_reset_get(u32 mask)
+@@ -163,6 +167,8 @@ u32 ath79_device_reset_get(u32 mask)
  		reg = AR933X_RESET_REG_RESET_MODULE;
  	else if (soc_is_ar934x())
  		reg = AR934X_RESET_REG_RESET_MODULE;

target/linux/ar71xx/patches-4.4/640-MIPS-ath79-add-QCA955x-wmac-reset.patch

 --- a/arch/mips/ath79/common.c
 +++ b/arch/mips/ath79/common.c
-@@ -39,7 +39,7 @@ unsigned int ath79_soc_rev;
+@@ -38,7 +38,7 @@ unsigned int ath79_soc_rev;
  void __iomem *ath79_pll_base;
  void __iomem *ath79_reset_base;
  EXPORT_SYMBOL_GPL(ath79_reset_base);