i2c: busses: Replace spin_lock_irqsave with spin_lock in hard IRQ

There is no need to do irqsave and irqrestore in context of hard IRQ.
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

drivers/i2c/busses/i2c-digicolor.c

@@ -160,12 +160,11 @@ static irqreturn_t dc_i2c_irq(int irq, void *dev_id)
 {
 	struct dc_i2c *i2c = dev_id;
 	int cmd_status = dc_i2c_cmd_status(i2c);
-	unsigned long flags;
 	u8 addr_cmd;
 
 	writeb_relaxed(1, i2c->regs + II_INTFLAG_CLEAR);
 
-	spin_lock_irqsave(&i2c->lock, flags);
+	spin_lock(&i2c->lock);
 
 	if (cmd_status == II_CMD_STATUS_ACK_BAD
 	    || cmd_status == II_CMD_STATUS_ABORT) {
@@ -207,7 +206,7 @@ static irqreturn_t dc_i2c_irq(int irq, void *dev_id)
 	}
 
 out:
-	spin_unlock_irqrestore(&i2c->lock, flags);
+	spin_unlock(&i2c->lock);
 	return IRQ_HANDLED;
 }
 

drivers/i2c/busses/i2c-jz4780.c

@@ -437,9 +437,8 @@ static irqreturn_t jz4780_i2c_irq(int irqno, void *dev_id)
 	unsigned short intst;
 	unsigned short intmsk;
 	struct jz4780_i2c *i2c = dev_id;
-	unsigned long flags;
 
-	spin_lock_irqsave(&i2c->lock, flags);
+	spin_lock(&i2c->lock);
 	intmsk = jz4780_i2c_readw(i2c, JZ4780_I2C_INTM);
 	intst = jz4780_i2c_readw(i2c, JZ4780_I2C_INTST);
 
@@ -551,7 +550,7 @@ static irqreturn_t jz4780_i2c_irq(int irqno, void *dev_id)
 	}
 
 done:
-	spin_unlock_irqrestore(&i2c->lock, flags);
+	spin_unlock(&i2c->lock);
 	return IRQ_HANDLED;
 }