watchdog: ziirave_wdt: Update checked I2C functionality mask

Update checked I2C functionality mask to reflect all of the SMBus
primitives used by this driver.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Rick Ramstetter <rick@anteaterllc.com>
Cc: linux-watchdog@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20190812200906.31344-23-andrew.smirnov@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

drivers/watchdog/ziirave_wdt.c

@@ -602,7 +602,10 @@ static int ziirave_wdt_probe(struct i2c_client *client,
 	struct ziirave_wdt_data *w_priv;
 	int val;
 
-	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+	if (!i2c_check_functionality(client->adapter,
+				     I2C_FUNC_SMBUS_BYTE |
+				     I2C_FUNC_SMBUS_BYTE_DATA |
+				     I2C_FUNC_SMBUS_WRITE_BLOCK_DATA))
 		return -ENODEV;
 
 	w_priv = devm_kzalloc(&client->dev, sizeof(*w_priv), GFP_KERNEL);