Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/dt-bindings/clk/lochnagar.h b/include/dt-bindings/clk/lochnagar.h
new file mode 100644
index 0000000..8fa2055
--- /dev/null
+++ b/include/dt-bindings/clk/lochnagar.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Device Tree defines for Lochnagar clocking
+ *
+ * Copyright (c) 2017-2018 Cirrus Logic, Inc. and
+ *                         Cirrus Logic International Semiconductor Ltd.
+ *
+ * Author: Charles Keepax <ckeepax@opensource.cirrus.com>
+ */
+
+#ifndef DT_BINDINGS_CLK_LOCHNAGAR_H
+#define DT_BINDINGS_CLK_LOCHNAGAR_H
+
+#define LOCHNAGAR_CDC_MCLK1		0
+#define LOCHNAGAR_CDC_MCLK2		1
+#define LOCHNAGAR_DSP_CLKIN		2
+#define LOCHNAGAR_GF_CLKOUT1		3
+#define LOCHNAGAR_GF_CLKOUT2		4
+#define LOCHNAGAR_PSIA1_MCLK		5
+#define LOCHNAGAR_PSIA2_MCLK		6
+#define LOCHNAGAR_SPDIF_MCLK		7
+#define LOCHNAGAR_ADAT_MCLK		8
+#define LOCHNAGAR_SOUNDCARD_MCLK	9
+#define LOCHNAGAR_SPDIF_CLKOUT		10
+
+#endif