Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/leds/leds-tca6507.c b/drivers/leds/leds-tca6507.c
index 8f343af..58be20c 100644
--- a/drivers/leds/leds-tca6507.c
+++ b/drivers/leds/leds-tca6507.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * leds-tca6507
  *
@@ -757,7 +758,7 @@
 	int err;
 	int i = 0;
 
-	adapter = to_i2c_adapter(client->dev.parent);
+	adapter = client->adapter;
 	pdata = dev_get_platdata(&client->dev);
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))