Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/sound/soc/codecs/88pm860x-codec.c b/sound/soc/codecs/88pm860x-codec.c
index 3c3ef42..00b2c43 100644
--- a/sound/soc/codecs/88pm860x-codec.c
+++ b/sound/soc/codecs/88pm860x-codec.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * 88pm860x-codec.c -- 88PM860x ALSA SoC Audio Driver
  *
  * Copyright 2010 Marvell International Ltd.
  * Author: Haojian Zhuang <haojian.zhuang@marvell.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
@@ -532,10 +529,6 @@
  * DAPM Controls
  */
 
-/* PCM Switch / PCM Interface */
-static const struct snd_kcontrol_new pcm_switch_controls =
-	SOC_DAPM_SINGLE("Switch", PM860X_ADC_EN_2, 0, 1, 0);
-
 /* AUX1 Switch */
 static const struct snd_kcontrol_new aux1_switch_controls =
 	SOC_DAPM_SINGLE("Switch", PM860X_ANA_TO_ANA, 4, 1, 0);
@@ -552,17 +545,6 @@
 static const struct snd_kcontrol_new repa_switch_controls =
 	SOC_DAPM_SINGLE("Switch", PM860X_DAC_EN_2, 1, 1, 0);
 
-/* PCM Mux / Mux7 */
-static const char *aif1_text[] = {
-	"PCM L", "PCM R",
-};
-
-static SOC_ENUM_SINGLE_DECL(aif1_enum,
-			    PM860X_PCM_IFACE_3, 6, aif1_text);
-
-static const struct snd_kcontrol_new aif1_mux =
-	SOC_DAPM_ENUM("PCM Mux", aif1_enum);
-
 /* I2S Mux / Mux9 */
 static const char *i2s_din_text[] = {
 	"DIN", "DIN1",