openwrt/target/linux/ar71xx/patches-3.18/504-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
@@ -142,6 +142,7 @@ 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);
--- a/arch/mips/ath79/common.c
+++ b/arch/mips/ath79/common.c
@@ -113,6 +113,32 @@ void ath79_device_reset_clear(u32 mask)
 }
 EXPORT_SYMBOL_GPL(ath79_device_reset_clear);
 
+u32 ath79_device_reset_get(u32 mask)
+{
+	unsigned long flags;
+	u32 reg;
+	u32 ret;
+
+	if (soc_is_ar71xx())
+		reg = AR71XX_RESET_REG_RESET_MODULE;
+	else if (soc_is_ar724x())
+		reg = AR724X_RESET_REG_RESET_MODULE;
+	else if (soc_is_ar913x())
+		reg = AR913X_RESET_REG_RESET_MODULE;
+	else if (soc_is_ar933x())
+		reg = AR933X_RESET_REG_RESET_MODULE;
+	else if (soc_is_ar934x())
+		reg = AR934X_RESET_REG_RESET_MODULE;
+	else
+		BUG();
+
+	spin_lock_irqsave(&ath79_device_reset_lock, flags);
+	ret = ath79_reset_rr(reg);
+	spin_unlock_irqrestore(&ath79_device_reset_lock, flags);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(ath79_device_reset_get);
+
 void ath79_flash_acquire(void)
 {
 	mutex_lock(&ath79_flash_mutex);