i2c: sprd: use core helper to mark adapter suspended

Rejecting transfers should be handled by the core.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-sprd.c

@@ -86,7 +86,6 @@ struct sprd_i2c {
 	u32 count;
 	int irq;
 	int err;
-	bool is_suspended;
 };
 
 static void sprd_i2c_set_count(struct sprd_i2c *i2c_dev, u32 count)
@@ -284,9 +283,6 @@ static int sprd_i2c_master_xfer(struct i2c_adapter *i2c_adap,
 	struct sprd_i2c *i2c_dev = i2c_adap->algo_data;
 	int im, ret;
 
-	if (i2c_dev->is_suspended)
-		return -EBUSY;
-
 	ret = pm_runtime_get_sync(i2c_dev->dev);
 	if (ret < 0)
 		return ret;
@@ -590,10 +586,7 @@ static int __maybe_unused sprd_i2c_suspend_noirq(struct device *dev)
 {
 	struct sprd_i2c *i2c_dev = dev_get_drvdata(dev);
 
-	i2c_lock_bus(&i2c_dev->adap, I2C_LOCK_ROOT_ADAPTER);
-	i2c_dev->is_suspended = true;
-	i2c_unlock_bus(&i2c_dev->adap, I2C_LOCK_ROOT_ADAPTER);
-
+	i2c_mark_adapter_suspended(&i2c_dev->adap);
 	return pm_runtime_force_suspend(dev);
 }
 
@@ -601,10 +594,7 @@ static int __maybe_unused sprd_i2c_resume_noirq(struct device *dev)
 {
 	struct sprd_i2c *i2c_dev = dev_get_drvdata(dev);
 
-	i2c_lock_bus(&i2c_dev->adap, I2C_LOCK_ROOT_ADAPTER);
-	i2c_dev->is_suspended = false;
-	i2c_unlock_bus(&i2c_dev->adap, I2C_LOCK_ROOT_ADAPTER);
-
+	i2c_mark_adapter_resumed(&i2c_dev->adap);
 	return pm_runtime_force_resume(dev);
 }