i2c: brcmstb: 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: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-brcmstb.c

@@ -170,7 +170,6 @@ struct brcmstb_i2c_dev {
 	struct bsc_regs *bsc_regmap;
 	struct i2c_adapter adapter;
 	struct completion done;
-	bool is_suspended;
 	u32 clk_freq_hz;
 	int data_regsz;
 };
@@ -467,9 +466,6 @@ static int brcmstb_i2c_xfer(struct i2c_adapter *adapter,
 	int xfersz = brcmstb_i2c_get_xfersz(dev);
 	u32 cond, cond_per_msg;
 
-	if (dev->is_suspended)
-		return -EBUSY;
-
 	/* Loop through all messages */
 	for (i = 0; i < num; i++) {
 		pmsg = &msgs[i];
@@ -689,10 +685,7 @@ static int brcmstb_i2c_suspend(struct device *dev)
 {
 	struct brcmstb_i2c_dev *i2c_dev = dev_get_drvdata(dev);
 
-	i2c_lock_bus(&i2c_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
-	i2c_dev->is_suspended = true;
-	i2c_unlock_bus(&i2c_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
-
+	i2c_mark_adapter_suspended(&i2c_dev->adapter);
 	return 0;
 }
 
@@ -700,10 +693,8 @@ static int brcmstb_i2c_resume(struct device *dev)
 {
 	struct brcmstb_i2c_dev *i2c_dev = dev_get_drvdata(dev);
 
-	i2c_lock_bus(&i2c_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
 	brcmstb_i2c_set_bsc_reg_defaults(i2c_dev);
-	i2c_dev->is_suspended = false;
-	i2c_unlock_bus(&i2c_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
+	i2c_mark_adapter_resumed(&i2c_dev->adapter);
 
 	return 0;
 }