diff --git a/sound/soc/pxa/corgi.c b/sound/soc/pxa/corgi.c
index dcbb7aa9830c..311774e9ca46 100644
--- a/sound/soc/pxa/corgi.c
+++ b/sound/soc/pxa/corgi.c
@@ -244,9 +244,9 @@ static const struct snd_soc_dapm_route corgi_audio_map[] = {
 	{"MICIN", NULL, "Line Jack"},
 };
 
-static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
-	"Off"};
-static const char *spk_function[] = {"On", "Off"};
+static const char * const jack_function[] = {"Headphone", "Mic", "Line",
+	"Headset", "Off"};
+static const char * const spk_function[] = {"On", "Off"};
 static const struct soc_enum corgi_enum[] = {
 	SOC_ENUM_SINGLE_EXT(5, jack_function),
 	SOC_ENUM_SINGLE_EXT(2, spk_function),
diff --git a/sound/soc/pxa/magician.c b/sound/soc/pxa/magician.c
index 62b8377a9d2b..2d4d4455fe87 100644
--- a/sound/soc/pxa/magician.c
+++ b/sound/soc/pxa/magician.c
@@ -376,7 +376,7 @@ static const struct snd_soc_dapm_route audio_map[] = {
 	{"VINM", NULL, "Call Mic"},
 };
 
-static const char *input_select[] = {"Call Mic", "Headset Mic"};
+static const char * const input_select[] = {"Call Mic", "Headset Mic"};
 static const struct soc_enum magician_in_sel_enum =
 	SOC_ENUM_SINGLE_EXT(2, input_select);
 
diff --git a/sound/soc/pxa/poodle.c b/sound/soc/pxa/poodle.c
index 4b3b714f5ee7..a879aba0691f 100644
--- a/sound/soc/pxa/poodle.c
+++ b/sound/soc/pxa/poodle.c
@@ -209,8 +209,8 @@ static const struct snd_soc_dapm_route poodle_audio_map[] = {
 	{"MICIN", NULL, "Microphone"},
 };
 
-static const char *jack_function[] = {"Off", "Headphone"};
-static const char *spk_function[] = {"Off", "On"};
+static const char * const jack_function[] = {"Off", "Headphone"};
+static const char * const spk_function[] = {"Off", "On"};
 static const struct soc_enum poodle_enum[] = {
 	SOC_ENUM_SINGLE_EXT(2, jack_function),
 	SOC_ENUM_SINGLE_EXT(2, spk_function),
diff --git a/sound/soc/pxa/spitz.c b/sound/soc/pxa/spitz.c
index 0e02634c8b7f..07d77cddac60 100644
--- a/sound/soc/pxa/spitz.c
+++ b/sound/soc/pxa/spitz.c
@@ -241,9 +241,9 @@ static const struct snd_soc_dapm_route spitz_audio_map[] = {
 	{"LINPUT1", NULL, "Line Jack"},
 };
 
-static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
-	"Off"};
-static const char *spk_function[] = {"On", "Off"};
+static const char * const jack_function[] = {"Headphone", "Mic", "Line",
+	"Headset", "Off"};
+static const char * const spk_function[] = {"On", "Off"};
 static const struct soc_enum spitz_enum[] = {
 	SOC_ENUM_SINGLE_EXT(5, jack_function),
 	SOC_ENUM_SINGLE_EXT(2, spk_function),
diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c
index c508f024ecfb..08b0cf50e91a 100644
--- a/sound/soc/pxa/tosa.c
+++ b/sound/soc/pxa/tosa.c
@@ -170,9 +170,9 @@ static const struct snd_soc_dapm_route audio_map[] = {
 	{"Mic Bias", NULL, "Headset Jack"},
 };
 
-static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
-	"Off"};
-static const char *spk_function[] = {"On", "Off"};
+static const char * const jack_function[] = {"Headphone", "Mic", "Line",
+	"Headset", "Off"};
+static const char * const spk_function[] = {"On", "Off"};
 static const struct soc_enum tosa_enum[] = {
 	SOC_ENUM_SINGLE_EXT(5, jack_function),
 	SOC_ENUM_SINGLE_EXT(2, spk_function),