diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 6df9943bbf65..981c631624d9 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -30,7 +30,7 @@
 #include "hda_beep.h"
 
 struct ad198x_spec {
-	struct snd_kcontrol_new *mixers[6];
+	const struct snd_kcontrol_new *mixers[6];
 	int num_mixers;
 	unsigned int beep_amp;	/* beep amp value, set via set_beep_amp() */
 	const struct hda_verb *init_verbs[6];	/* initialization verbs
@@ -46,17 +46,17 @@ struct ad198x_spec {
 	unsigned int cur_eapd;
 	unsigned int need_dac_fix;
 
-	hda_nid_t *alt_dac_nid;
-	struct hda_pcm_stream *stream_analog_alt_playback;
+	const hda_nid_t *alt_dac_nid;
+	const struct hda_pcm_stream *stream_analog_alt_playback;
 
 	/* capture */
 	unsigned int num_adc_nids;
-	hda_nid_t *adc_nids;
+	const hda_nid_t *adc_nids;
 	hda_nid_t dig_in_nid;		/* digital-in NID; optional */
 
 	/* capture source */
 	const struct hda_input_mux *input_mux;
-	hda_nid_t *capsrc_nids;
+	const hda_nid_t *capsrc_nids;
 	unsigned int cur_mux[3];
 
 	/* channel model */
@@ -182,13 +182,13 @@ static void ad198x_free_kctls(struct hda_codec *codec);
 
 #ifdef CONFIG_SND_HDA_INPUT_BEEP
 /* additional beep mixers; the actual parameters are overwritten at build */
-static struct snd_kcontrol_new ad_beep_mixer[] = {
+static const struct snd_kcontrol_new ad_beep_mixer[] = {
 	HDA_CODEC_VOLUME("Beep Playback Volume", 0, 0, HDA_OUTPUT),
 	HDA_CODEC_MUTE_BEEP("Beep Playback Switch", 0, 0, HDA_OUTPUT),
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad_beep2_mixer[] = {
+static const struct snd_kcontrol_new ad_beep2_mixer[] = {
 	HDA_CODEC_VOLUME("Digital Beep Playback Volume", 0, 0, HDA_OUTPUT),
 	HDA_CODEC_MUTE_BEEP("Digital Beep Playback Switch", 0, 0, HDA_OUTPUT),
 	{ } /* end */
@@ -231,7 +231,7 @@ static int ad198x_build_controls(struct hda_codec *codec)
 	/* create beep controls if needed */
 #ifdef CONFIG_SND_HDA_INPUT_BEEP
 	if (spec->beep_amp) {
-		struct snd_kcontrol_new *knew;
+		const struct snd_kcontrol_new *knew;
 		knew = spec->analog_beep ? ad_beep2_mixer : ad_beep_mixer;
 		for ( ; knew->name; knew++) {
 			struct snd_kcontrol *kctl;
@@ -331,7 +331,7 @@ static int ad198x_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
 	return snd_hda_multi_out_analog_cleanup(codec, &spec->multiout);
 }
 
-static struct hda_pcm_stream ad198x_pcm_analog_alt_playback = {
+static const struct hda_pcm_stream ad198x_pcm_analog_alt_playback = {
 	.substreams = 1,
 	.channels_min = 2,
 	.channels_max = 2,
@@ -403,7 +403,7 @@ static int ad198x_capture_pcm_cleanup(struct hda_pcm_stream *hinfo,
 
 /*
  */
-static struct hda_pcm_stream ad198x_pcm_analog_playback = {
+static const struct hda_pcm_stream ad198x_pcm_analog_playback = {
 	.substreams = 1,
 	.channels_min = 2,
 	.channels_max = 6, /* changed later */
@@ -415,7 +415,7 @@ static struct hda_pcm_stream ad198x_pcm_analog_playback = {
 	},
 };
 
-static struct hda_pcm_stream ad198x_pcm_analog_capture = {
+static const struct hda_pcm_stream ad198x_pcm_analog_capture = {
 	.substreams = 1,
 	.channels_min = 2,
 	.channels_max = 2,
@@ -426,7 +426,7 @@ static struct hda_pcm_stream ad198x_pcm_analog_capture = {
 	},
 };
 
-static struct hda_pcm_stream ad198x_pcm_digital_playback = {
+static const struct hda_pcm_stream ad198x_pcm_digital_playback = {
 	.substreams = 1,
 	.channels_min = 2,
 	.channels_max = 2,
@@ -439,7 +439,7 @@ static struct hda_pcm_stream ad198x_pcm_digital_playback = {
 	},
 };
 
-static struct hda_pcm_stream ad198x_pcm_digital_capture = {
+static const struct hda_pcm_stream ad198x_pcm_digital_capture = {
 	.substreams = 1,
 	.channels_min = 2,
 	.channels_max = 2,
@@ -569,7 +569,7 @@ static int ad198x_suspend(struct hda_codec *codec, pm_message_t state)
 }
 #endif
 
-static struct hda_codec_ops ad198x_patch_ops = {
+static const struct hda_codec_ops ad198x_patch_ops = {
 	.build_controls = ad198x_build_controls,
 	.build_pcms = ad198x_build_pcms,
 	.init = ad198x_init,
@@ -639,13 +639,13 @@ static int ad198x_ch_mode_put(struct snd_kcontrol *kcontrol,
 #define AD1986A_CLFE_DAC	0x05
 #define AD1986A_ADC		0x06
 
-static hda_nid_t ad1986a_dac_nids[3] = {
+static const hda_nid_t ad1986a_dac_nids[3] = {
 	AD1986A_FRONT_DAC, AD1986A_SURR_DAC, AD1986A_CLFE_DAC
 };
-static hda_nid_t ad1986a_adc_nids[1] = { AD1986A_ADC };
-static hda_nid_t ad1986a_capsrc_nids[1] = { 0x12 };
+static const hda_nid_t ad1986a_adc_nids[1] = { AD1986A_ADC };
+static const hda_nid_t ad1986a_capsrc_nids[1] = { 0x12 };
 
-static struct hda_input_mux ad1986a_capture_source = {
+static const struct hda_input_mux ad1986a_capture_source = {
 	.num_items = 7,
 	.items = {
 		{ "Mic", 0x0 },
@@ -659,7 +659,7 @@ static struct hda_input_mux ad1986a_capture_source = {
 };
 
 
-static struct hda_bind_ctls ad1986a_bind_pcm_vol = {
+static const struct hda_bind_ctls ad1986a_bind_pcm_vol = {
 	.ops = &snd_hda_bind_vol,
 	.values = {
 		HDA_COMPOSE_AMP_VAL(AD1986A_FRONT_DAC, 3, 0, HDA_OUTPUT),
@@ -669,7 +669,7 @@ static struct hda_bind_ctls ad1986a_bind_pcm_vol = {
 	},
 };
 
-static struct hda_bind_ctls ad1986a_bind_pcm_sw = {
+static const struct hda_bind_ctls ad1986a_bind_pcm_sw = {
 	.ops = &snd_hda_bind_sw,
 	.values = {
 		HDA_COMPOSE_AMP_VAL(AD1986A_FRONT_DAC, 3, 0, HDA_OUTPUT),
@@ -682,7 +682,7 @@ static struct hda_bind_ctls ad1986a_bind_pcm_sw = {
 /*
  * mixers
  */
-static struct snd_kcontrol_new ad1986a_mixers[] = {
+static const struct snd_kcontrol_new ad1986a_mixers[] = {
 	/*
 	 * bind volumes/mutes of 3 DACs as a single PCM control for simplicity
 	 */
@@ -723,7 +723,7 @@ static struct snd_kcontrol_new ad1986a_mixers[] = {
 };
 
 /* additional mixers for 3stack mode */
-static struct snd_kcontrol_new ad1986a_3st_mixers[] = {
+static const struct snd_kcontrol_new ad1986a_3st_mixers[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Channel Mode",
@@ -735,10 +735,10 @@ static struct snd_kcontrol_new ad1986a_3st_mixers[] = {
 };
 
 /* laptop model - 2ch only */
-static hda_nid_t ad1986a_laptop_dac_nids[1] = { AD1986A_FRONT_DAC };
+static const hda_nid_t ad1986a_laptop_dac_nids[1] = { AD1986A_FRONT_DAC };
 
 /* master controls both pins 0x1a and 0x1b */
-static struct hda_bind_ctls ad1986a_laptop_master_vol = {
+static const struct hda_bind_ctls ad1986a_laptop_master_vol = {
 	.ops = &snd_hda_bind_vol,
 	.values = {
 		HDA_COMPOSE_AMP_VAL(0x1a, 3, 0, HDA_OUTPUT),
@@ -747,7 +747,7 @@ static struct hda_bind_ctls ad1986a_laptop_master_vol = {
 	},
 };
 
-static struct hda_bind_ctls ad1986a_laptop_master_sw = {
+static const struct hda_bind_ctls ad1986a_laptop_master_sw = {
 	.ops = &snd_hda_bind_sw,
 	.values = {
 		HDA_COMPOSE_AMP_VAL(0x1a, 3, 0, HDA_OUTPUT),
@@ -756,7 +756,7 @@ static struct hda_bind_ctls ad1986a_laptop_master_sw = {
 	},
 };
 
-static struct snd_kcontrol_new ad1986a_laptop_mixers[] = {
+static const struct snd_kcontrol_new ad1986a_laptop_mixers[] = {
 	HDA_CODEC_VOLUME("PCM Playback Volume", 0x03, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("PCM Playback Switch", 0x03, 0x0, HDA_OUTPUT),
 	HDA_BIND_VOL("Master Playback Volume", &ad1986a_laptop_master_vol),
@@ -787,7 +787,7 @@ static struct snd_kcontrol_new ad1986a_laptop_mixers[] = {
 
 /* laptop-eapd model - 2ch only */
 
-static struct hda_input_mux ad1986a_laptop_eapd_capture_source = {
+static const struct hda_input_mux ad1986a_laptop_eapd_capture_source = {
 	.num_items = 3,
 	.items = {
 		{ "Mic", 0x0 },
@@ -796,7 +796,7 @@ static struct hda_input_mux ad1986a_laptop_eapd_capture_source = {
 	},
 };
 
-static struct hda_input_mux ad1986a_automic_capture_source = {
+static const struct hda_input_mux ad1986a_automic_capture_source = {
 	.num_items = 2,
 	.items = {
 		{ "Mic", 0x0 },
@@ -804,13 +804,13 @@ static struct hda_input_mux ad1986a_automic_capture_source = {
 	},
 };
 
-static struct snd_kcontrol_new ad1986a_laptop_master_mixers[] = {
+static const struct snd_kcontrol_new ad1986a_laptop_master_mixers[] = {
 	HDA_BIND_VOL("Master Playback Volume", &ad1986a_laptop_master_vol),
 	HDA_BIND_SW("Master Playback Switch", &ad1986a_laptop_master_sw),
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1986a_laptop_eapd_mixers[] = {
+static const struct snd_kcontrol_new ad1986a_laptop_eapd_mixers[] = {
 	HDA_CODEC_VOLUME("PCM Playback Volume", 0x03, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("PCM Playback Switch", 0x03, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME("Mic Playback Volume", 0x13, 0x0, HDA_OUTPUT),
@@ -837,7 +837,7 @@ static struct snd_kcontrol_new ad1986a_laptop_eapd_mixers[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1986a_laptop_intmic_mixers[] = {
+static const struct snd_kcontrol_new ad1986a_laptop_intmic_mixers[] = {
 	HDA_CODEC_VOLUME("Internal Mic Playback Volume", 0x17, 0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Internal Mic Playback Switch", 0x17, 0, HDA_OUTPUT),
 	{ } /* end */
@@ -931,7 +931,7 @@ static int ad1986a_hp_master_sw_put(struct snd_kcontrol *kcontrol,
 	return change;
 }
 
-static struct snd_kcontrol_new ad1986a_automute_master_mixers[] = {
+static const struct snd_kcontrol_new ad1986a_automute_master_mixers[] = {
 	HDA_BIND_VOL("Master Playback Volume", &ad1986a_laptop_master_vol),
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -949,7 +949,7 @@ static struct snd_kcontrol_new ad1986a_automute_master_mixers[] = {
 /*
  * initialization verbs
  */
-static struct hda_verb ad1986a_init_verbs[] = {
+static const struct hda_verb ad1986a_init_verbs[] = {
 	/* Front, Surround, CLFE DAC; mute as default */
 	{0x03, AC_VERB_SET_AMP_GAIN_MUTE, 0xb080},
 	{0x04, AC_VERB_SET_AMP_GAIN_MUTE, 0xb080},
@@ -1004,7 +1004,7 @@ static struct hda_verb ad1986a_init_verbs[] = {
 	{ } /* end */
 };
 
-static struct hda_verb ad1986a_ch2_init[] = {
+static const struct hda_verb ad1986a_ch2_init[] = {
 	/* Surround out -> Line In */
 	{ 0x1c, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN },
  	/* Line-in selectors */
@@ -1016,7 +1016,7 @@ static struct hda_verb ad1986a_ch2_init[] = {
 	{ } /* end */
 };
 
-static struct hda_verb ad1986a_ch4_init[] = {
+static const struct hda_verb ad1986a_ch4_init[] = {
 	/* Surround out -> Surround */
 	{ 0x1c, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
 	{ 0x10, AC_VERB_SET_CONNECT_SEL, 0x0 },
@@ -1026,7 +1026,7 @@ static struct hda_verb ad1986a_ch4_init[] = {
 	{ } /* end */
 };
 
-static struct hda_verb ad1986a_ch6_init[] = {
+static const struct hda_verb ad1986a_ch6_init[] = {
 	/* Surround out -> Surround out */
 	{ 0x1c, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
 	{ 0x10, AC_VERB_SET_CONNECT_SEL, 0x0 },
@@ -1036,19 +1036,19 @@ static struct hda_verb ad1986a_ch6_init[] = {
 	{ } /* end */
 };
 
-static struct hda_channel_mode ad1986a_modes[3] = {
+static const struct hda_channel_mode ad1986a_modes[3] = {
 	{ 2, ad1986a_ch2_init },
 	{ 4, ad1986a_ch4_init },
 	{ 6, ad1986a_ch6_init },
 };
 
 /* eapd initialization */
-static struct hda_verb ad1986a_eapd_init_verbs[] = {
+static const struct hda_verb ad1986a_eapd_init_verbs[] = {
 	{0x1b, AC_VERB_SET_EAPD_BTLENABLE, 0x00 },
 	{}
 };
 
-static struct hda_verb ad1986a_automic_verbs[] = {
+static const struct hda_verb ad1986a_automic_verbs[] = {
 	{0x1d, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80},
 	{0x1f, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80},
 	/*{0x20, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80},*/
@@ -1058,7 +1058,7 @@ static struct hda_verb ad1986a_automic_verbs[] = {
 };
 
 /* Ultra initialization */
-static struct hda_verb ad1986a_ultra_init[] = {
+static const struct hda_verb ad1986a_ultra_init[] = {
 	/* eapd initialization */
 	{ 0x1b, AC_VERB_SET_EAPD_BTLENABLE, 0x00 },
 	/* CLFE -> Mic in */
@@ -1069,7 +1069,7 @@ static struct hda_verb ad1986a_ultra_init[] = {
 };
 
 /* pin sensing on HP jack */
-static struct hda_verb ad1986a_hp_init_verbs[] = {
+static const struct hda_verb ad1986a_hp_init_verbs[] = {
 	{0x1a, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | AD1986A_HP_EVENT},
 	{}
 };
@@ -1120,7 +1120,7 @@ static const char * const ad1986a_models[AD1986A_MODELS] = {
 	[AD1986A_SAMSUNG_P50]	= "samsung-p50",
 };
 
-static struct snd_pci_quirk ad1986a_cfg_tbl[] = {
+static const struct snd_pci_quirk ad1986a_cfg_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x30af, "HP B2800", AD1986A_LAPTOP_EAPD),
 	SND_PCI_QUIRK(0x1043, 0x1153, "ASUS M9", AD1986A_LAPTOP_EAPD),
 	SND_PCI_QUIRK(0x1043, 0x11f7, "ASUS U5A", AD1986A_LAPTOP_EAPD),
@@ -1152,7 +1152,7 @@ static struct snd_pci_quirk ad1986a_cfg_tbl[] = {
 };
 
 #ifdef CONFIG_SND_HDA_POWER_SAVE
-static struct hda_amp_list ad1986a_loopbacks[] = {
+static const struct hda_amp_list ad1986a_loopbacks[] = {
 	{ 0x13, HDA_OUTPUT, 0 }, /* Mic */
 	{ 0x14, HDA_OUTPUT, 0 }, /* Phone */
 	{ 0x15, HDA_OUTPUT, 0 }, /* CD */
@@ -1329,11 +1329,11 @@ static int patch_ad1986a(struct hda_codec *codec)
 #define AD1983_DAC		0x03
 #define AD1983_ADC		0x04
 
-static hda_nid_t ad1983_dac_nids[1] = { AD1983_DAC };
-static hda_nid_t ad1983_adc_nids[1] = { AD1983_ADC };
-static hda_nid_t ad1983_capsrc_nids[1] = { 0x15 };
+static const hda_nid_t ad1983_dac_nids[1] = { AD1983_DAC };
+static const hda_nid_t ad1983_adc_nids[1] = { AD1983_ADC };
+static const hda_nid_t ad1983_capsrc_nids[1] = { 0x15 };
 
-static struct hda_input_mux ad1983_capture_source = {
+static const struct hda_input_mux ad1983_capture_source = {
 	.num_items = 4,
 	.items = {
 		{ "Mic", 0x0 },
@@ -1348,7 +1348,7 @@ static struct hda_input_mux ad1983_capture_source = {
  */
 static int ad1983_spdif_route_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 {
-	static char *texts[] = { "PCM", "ADC" };
+	static const char * const texts[] = { "PCM", "ADC" };
 
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 	uinfo->count = 1;
@@ -1385,7 +1385,7 @@ static int ad1983_spdif_route_put(struct snd_kcontrol *kcontrol, struct snd_ctl_
 	return 0;
 }
 
-static struct snd_kcontrol_new ad1983_mixers[] = {
+static const struct snd_kcontrol_new ad1983_mixers[] = {
 	HDA_CODEC_VOLUME("Front Playback Volume", 0x05, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Front Playback Switch", 0x05, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME("Headphone Playback Volume", 0x06, 0x0, HDA_OUTPUT),
@@ -1418,7 +1418,7 @@ static struct snd_kcontrol_new ad1983_mixers[] = {
 	{ } /* end */
 };
 
-static struct hda_verb ad1983_init_verbs[] = {
+static const struct hda_verb ad1983_init_verbs[] = {
 	/* Front, HP, Mono; mute as default */
 	{0x05, AC_VERB_SET_AMP_GAIN_MUTE, 0xb080},
 	{0x06, AC_VERB_SET_AMP_GAIN_MUTE, 0xb080},
@@ -1458,7 +1458,7 @@ static struct hda_verb ad1983_init_verbs[] = {
 };
 
 #ifdef CONFIG_SND_HDA_POWER_SAVE
-static struct hda_amp_list ad1983_loopbacks[] = {
+static const struct hda_amp_list ad1983_loopbacks[] = {
 	{ 0x12, HDA_OUTPUT, 0 }, /* Mic */
 	{ 0x13, HDA_OUTPUT, 0 }, /* Line */
 	{ } /* end */
@@ -1518,12 +1518,12 @@ static int patch_ad1983(struct hda_codec *codec)
 #define AD1981_DAC		0x03
 #define AD1981_ADC		0x04
 
-static hda_nid_t ad1981_dac_nids[1] = { AD1981_DAC };
-static hda_nid_t ad1981_adc_nids[1] = { AD1981_ADC };
-static hda_nid_t ad1981_capsrc_nids[1] = { 0x15 };
+static const hda_nid_t ad1981_dac_nids[1] = { AD1981_DAC };
+static const hda_nid_t ad1981_adc_nids[1] = { AD1981_ADC };
+static const hda_nid_t ad1981_capsrc_nids[1] = { 0x15 };
 
 /* 0x0c, 0x09, 0x0e, 0x0f, 0x19, 0x05, 0x18, 0x17 */
-static struct hda_input_mux ad1981_capture_source = {
+static const struct hda_input_mux ad1981_capture_source = {
 	.num_items = 7,
 	.items = {
 		{ "Front Mic", 0x0 },
@@ -1536,7 +1536,7 @@ static struct hda_input_mux ad1981_capture_source = {
 	},
 };
 
-static struct snd_kcontrol_new ad1981_mixers[] = {
+static const struct snd_kcontrol_new ad1981_mixers[] = {
 	HDA_CODEC_VOLUME("Front Playback Volume", 0x05, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Front Playback Switch", 0x05, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME("Headphone Playback Volume", 0x06, 0x0, HDA_OUTPUT),
@@ -1577,7 +1577,7 @@ static struct snd_kcontrol_new ad1981_mixers[] = {
 	{ } /* end */
 };
 
-static struct hda_verb ad1981_init_verbs[] = {
+static const struct hda_verb ad1981_init_verbs[] = {
 	/* Front, HP, Mono; mute as default */
 	{0x05, AC_VERB_SET_AMP_GAIN_MUTE, 0xb080},
 	{0x06, AC_VERB_SET_AMP_GAIN_MUTE, 0xb080},
@@ -1625,7 +1625,7 @@ static struct hda_verb ad1981_init_verbs[] = {
 };
 
 #ifdef CONFIG_SND_HDA_POWER_SAVE
-static struct hda_amp_list ad1981_loopbacks[] = {
+static const struct hda_amp_list ad1981_loopbacks[] = {
 	{ 0x12, HDA_OUTPUT, 0 }, /* Front Mic */
 	{ 0x13, HDA_OUTPUT, 0 }, /* Line */
 	{ 0x1b, HDA_OUTPUT, 0 }, /* Aux */
@@ -1645,7 +1645,7 @@ static struct hda_amp_list ad1981_loopbacks[] = {
 #define AD1981_HP_EVENT		0x37
 #define AD1981_MIC_EVENT	0x38
 
-static struct hda_verb ad1981_hp_init_verbs[] = {
+static const struct hda_verb ad1981_hp_init_verbs[] = {
 	{0x05, AC_VERB_SET_EAPD_BTLENABLE, 0x00 }, /* default off */
 	/* pin sensing on HP and Mic jacks */
 	{0x06, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | AD1981_HP_EVENT},
@@ -1674,7 +1674,7 @@ static int ad1981_hp_master_sw_put(struct snd_kcontrol *kcontrol,
 }
 
 /* bind volumes of both NID 0x05 and 0x06 */
-static struct hda_bind_ctls ad1981_hp_bind_master_vol = {
+static const struct hda_bind_ctls ad1981_hp_bind_master_vol = {
 	.ops = &snd_hda_bind_vol,
 	.values = {
 		HDA_COMPOSE_AMP_VAL(0x05, 3, 0, HDA_OUTPUT),
@@ -1696,12 +1696,12 @@ static void ad1981_hp_automute(struct hda_codec *codec)
 /* toggle input of built-in and mic jack appropriately */
 static void ad1981_hp_automic(struct hda_codec *codec)
 {
-	static struct hda_verb mic_jack_on[] = {
+	static const struct hda_verb mic_jack_on[] = {
 		{0x1f, AC_VERB_SET_AMP_GAIN_MUTE, 0xb080},
 		{0x1e, AC_VERB_SET_AMP_GAIN_MUTE, 0xb000},
 		{}
 	};
-	static struct hda_verb mic_jack_off[] = {
+	static const struct hda_verb mic_jack_off[] = {
 		{0x1e, AC_VERB_SET_AMP_GAIN_MUTE, 0xb080},
 		{0x1f, AC_VERB_SET_AMP_GAIN_MUTE, 0xb000},
 		{}
@@ -1730,7 +1730,7 @@ static void ad1981_hp_unsol_event(struct hda_codec *codec,
 	}
 }
 
-static struct hda_input_mux ad1981_hp_capture_source = {
+static const struct hda_input_mux ad1981_hp_capture_source = {
 	.num_items = 3,
 	.items = {
 		{ "Mic", 0x0 },
@@ -1739,7 +1739,7 @@ static struct hda_input_mux ad1981_hp_capture_source = {
 	},
 };
 
-static struct snd_kcontrol_new ad1981_hp_mixers[] = {
+static const struct snd_kcontrol_new ad1981_hp_mixers[] = {
 	HDA_BIND_VOL("Master Playback Volume", &ad1981_hp_bind_master_vol),
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1790,7 +1790,7 @@ static int ad1981_hp_init(struct hda_codec *codec)
 }
 
 /* configuration for Toshiba Laptops */
-static struct hda_verb ad1981_toshiba_init_verbs[] = {
+static const struct hda_verb ad1981_toshiba_init_verbs[] = {
 	{0x05, AC_VERB_SET_EAPD_BTLENABLE, 0x01 }, /* default on */
 	/* pin sensing on HP and Mic jacks */
 	{0x06, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | AD1981_HP_EVENT},
@@ -1798,14 +1798,14 @@ static struct hda_verb ad1981_toshiba_init_verbs[] = {
 	{}
 };
 
-static struct snd_kcontrol_new ad1981_toshiba_mixers[] = {
+static const struct snd_kcontrol_new ad1981_toshiba_mixers[] = {
 	HDA_CODEC_VOLUME("Amp Volume", 0x1a, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Amp Switch", 0x1a, 0x0, HDA_OUTPUT),
 	{ }
 };
 
 /* configuration for Lenovo Thinkpad T60 */
-static struct snd_kcontrol_new ad1981_thinkpad_mixers[] = {
+static const struct snd_kcontrol_new ad1981_thinkpad_mixers[] = {
 	HDA_CODEC_VOLUME("Master Playback Volume", 0x05, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Master Playback Switch", 0x05, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME("PCM Playback Volume", 0x11, 0x0, HDA_OUTPUT),
@@ -1835,7 +1835,7 @@ static struct snd_kcontrol_new ad1981_thinkpad_mixers[] = {
 	{ } /* end */
 };
 
-static struct hda_input_mux ad1981_thinkpad_capture_source = {
+static const struct hda_input_mux ad1981_thinkpad_capture_source = {
 	.num_items = 3,
 	.items = {
 		{ "Mic", 0x0 },
@@ -1860,7 +1860,7 @@ static const char * const ad1981_models[AD1981_MODELS] = {
 	[AD1981_TOSHIBA]	= "toshiba"
 };
 
-static struct snd_pci_quirk ad1981_cfg_tbl[] = {
+static const struct snd_pci_quirk ad1981_cfg_tbl[] = {
 	SND_PCI_QUIRK(0x1014, 0x0597, "Lenovo Z60", AD1981_THINKPAD),
 	SND_PCI_QUIRK(0x1014, 0x05b7, "Lenovo Z60m", AD1981_THINKPAD),
 	/* All HP models */
@@ -2075,32 +2075,32 @@ enum {
  * mixers
  */
 
-static hda_nid_t ad1988_6stack_dac_nids[4] = {
+static const hda_nid_t ad1988_6stack_dac_nids[4] = {
 	0x04, 0x06, 0x05, 0x0a
 };
 
-static hda_nid_t ad1988_3stack_dac_nids[3] = {
+static const hda_nid_t ad1988_3stack_dac_nids[3] = {
 	0x04, 0x05, 0x0a
 };
 
 /* for AD1988A revision-2, DAC2-4 are swapped */
-static hda_nid_t ad1988_6stack_dac_nids_rev2[4] = {
+static const hda_nid_t ad1988_6stack_dac_nids_rev2[4] = {
 	0x04, 0x05, 0x0a, 0x06
 };
 
-static hda_nid_t ad1988_alt_dac_nid[1] = {
+static const hda_nid_t ad1988_alt_dac_nid[1] = {
 	0x03
 };
 
-static hda_nid_t ad1988_3stack_dac_nids_rev2[3] = {
+static const hda_nid_t ad1988_3stack_dac_nids_rev2[3] = {
 	0x04, 0x0a, 0x06
 };
 
-static hda_nid_t ad1988_adc_nids[3] = {
+static const hda_nid_t ad1988_adc_nids[3] = {
 	0x08, 0x09, 0x0f
 };
 
-static hda_nid_t ad1988_capsrc_nids[3] = {
+static const hda_nid_t ad1988_capsrc_nids[3] = {
 	0x0c, 0x0d, 0x0e
 };
 
@@ -2108,11 +2108,11 @@ static hda_nid_t ad1988_capsrc_nids[3] = {
 #define AD1988_SPDIF_OUT_HDMI	0x0b
 #define AD1988_SPDIF_IN		0x07
 
-static hda_nid_t ad1989b_slave_dig_outs[] = {
+static const hda_nid_t ad1989b_slave_dig_outs[] = {
 	AD1988_SPDIF_OUT, AD1988_SPDIF_OUT_HDMI, 0
 };
 
-static struct hda_input_mux ad1988_6stack_capture_source = {
+static const struct hda_input_mux ad1988_6stack_capture_source = {
 	.num_items = 5,
 	.items = {
 		{ "Front Mic", 0x1 },	/* port-B */
@@ -2123,7 +2123,7 @@ static struct hda_input_mux ad1988_6stack_capture_source = {
 	},
 };
 
-static struct hda_input_mux ad1988_laptop_capture_source = {
+static const struct hda_input_mux ad1988_laptop_capture_source = {
 	.num_items = 3,
 	.items = {
 		{ "Mic/Line", 0x1 },	/* port-B */
@@ -2166,7 +2166,7 @@ static int ad198x_ch_mode_put(struct snd_kcontrol *kcontrol,
 }
 
 /* 6-stack mode */
-static struct snd_kcontrol_new ad1988_6stack_mixers1[] = {
+static const struct snd_kcontrol_new ad1988_6stack_mixers1[] = {
 	HDA_CODEC_VOLUME("Front Playback Volume", 0x04, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME("Surround Playback Volume", 0x06, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME_MONO("Center Playback Volume", 0x05, 1, 0x0, HDA_OUTPUT),
@@ -2175,7 +2175,7 @@ static struct snd_kcontrol_new ad1988_6stack_mixers1[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1988_6stack_mixers1_rev2[] = {
+static const struct snd_kcontrol_new ad1988_6stack_mixers1_rev2[] = {
 	HDA_CODEC_VOLUME("Front Playback Volume", 0x04, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME("Surround Playback Volume", 0x05, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME_MONO("Center Playback Volume", 0x0a, 1, 0x0, HDA_OUTPUT),
@@ -2184,7 +2184,7 @@ static struct snd_kcontrol_new ad1988_6stack_mixers1_rev2[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1988_6stack_mixers2[] = {
+static const struct snd_kcontrol_new ad1988_6stack_mixers2[] = {
 	HDA_BIND_MUTE("Front Playback Switch", 0x29, 2, HDA_INPUT),
 	HDA_BIND_MUTE("Surround Playback Switch", 0x2a, 2, HDA_INPUT),
 	HDA_BIND_MUTE_MONO("Center Playback Switch", 0x27, 1, 2, HDA_INPUT),
@@ -2211,14 +2211,14 @@ static struct snd_kcontrol_new ad1988_6stack_mixers2[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1988_6stack_fp_mixers[] = {
+static const struct snd_kcontrol_new ad1988_6stack_fp_mixers[] = {
 	HDA_CODEC_VOLUME("Headphone Playback Volume", 0x03, 0x0, HDA_OUTPUT),
 
 	{ } /* end */
 };
 
 /* 3-stack mode */
-static struct snd_kcontrol_new ad1988_3stack_mixers1[] = {
+static const struct snd_kcontrol_new ad1988_3stack_mixers1[] = {
 	HDA_CODEC_VOLUME("Front Playback Volume", 0x04, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME("Surround Playback Volume", 0x0a, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME_MONO("Center Playback Volume", 0x05, 1, 0x0, HDA_OUTPUT),
@@ -2226,7 +2226,7 @@ static struct snd_kcontrol_new ad1988_3stack_mixers1[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1988_3stack_mixers1_rev2[] = {
+static const struct snd_kcontrol_new ad1988_3stack_mixers1_rev2[] = {
 	HDA_CODEC_VOLUME("Front Playback Volume", 0x04, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME("Surround Playback Volume", 0x0a, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME_MONO("Center Playback Volume", 0x06, 1, 0x0, HDA_OUTPUT),
@@ -2234,7 +2234,7 @@ static struct snd_kcontrol_new ad1988_3stack_mixers1_rev2[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1988_3stack_mixers2[] = {
+static const struct snd_kcontrol_new ad1988_3stack_mixers2[] = {
 	HDA_BIND_MUTE("Front Playback Switch", 0x29, 2, HDA_INPUT),
 	HDA_BIND_MUTE("Surround Playback Switch", 0x2c, 2, HDA_INPUT),
 	HDA_BIND_MUTE_MONO("Center Playback Switch", 0x26, 1, 2, HDA_INPUT),
@@ -2268,7 +2268,7 @@ static struct snd_kcontrol_new ad1988_3stack_mixers2[] = {
 };
 
 /* laptop mode */
-static struct snd_kcontrol_new ad1988_laptop_mixers[] = {
+static const struct snd_kcontrol_new ad1988_laptop_mixers[] = {
 	HDA_CODEC_VOLUME("PCM Playback Volume", 0x04, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("PCM Playback Switch", 0x29, 0x0, HDA_INPUT),
 	HDA_BIND_MUTE("Mono Playback Switch", 0x1e, 2, HDA_INPUT),
@@ -2299,7 +2299,7 @@ static struct snd_kcontrol_new ad1988_laptop_mixers[] = {
 };
 
 /* capture */
-static struct snd_kcontrol_new ad1988_capture_mixers[] = {
+static const struct snd_kcontrol_new ad1988_capture_mixers[] = {
 	HDA_CODEC_VOLUME("Capture Volume", 0x0c, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Capture Switch", 0x0c, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME_IDX("Capture Volume", 1, 0x0d, 0x0, HDA_OUTPUT),
@@ -2324,7 +2324,7 @@ static struct snd_kcontrol_new ad1988_capture_mixers[] = {
 static int ad1988_spdif_playback_source_info(struct snd_kcontrol *kcontrol,
 					     struct snd_ctl_elem_info *uinfo)
 {
-	static char *texts[] = {
+	static const char * const texts[] = {
 		"PCM", "ADC1", "ADC2", "ADC3"
 	};
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
@@ -2405,7 +2405,7 @@ static int ad1988_spdif_playback_source_put(struct snd_kcontrol *kcontrol,
 	return change;
 }
 
-static struct snd_kcontrol_new ad1988_spdif_out_mixers[] = {
+static const struct snd_kcontrol_new ad1988_spdif_out_mixers[] = {
 	HDA_CODEC_VOLUME("IEC958 Playback Volume", 0x1b, 0x0, HDA_OUTPUT),
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -2418,12 +2418,12 @@ static struct snd_kcontrol_new ad1988_spdif_out_mixers[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1988_spdif_in_mixers[] = {
+static const struct snd_kcontrol_new ad1988_spdif_in_mixers[] = {
 	HDA_CODEC_VOLUME("IEC958 Capture Volume", 0x1c, 0x0, HDA_INPUT),
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1989_spdif_out_mixers[] = {
+static const struct snd_kcontrol_new ad1989_spdif_out_mixers[] = {
 	HDA_CODEC_VOLUME("IEC958 Playback Volume", 0x1b, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME("HDMI Playback Volume", 0x1d, 0x0, HDA_OUTPUT),
 	{ } /* end */
@@ -2436,7 +2436,7 @@ static struct snd_kcontrol_new ad1989_spdif_out_mixers[] = {
 /*
  * for 6-stack (+dig)
  */
-static struct hda_verb ad1988_6stack_init_verbs[] = {
+static const struct hda_verb ad1988_6stack_init_verbs[] = {
 	/* Front, Surround, CLFE, side DAC; unmute as default */
 	{0x04, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
 	{0x06, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
@@ -2496,7 +2496,7 @@ static struct hda_verb ad1988_6stack_init_verbs[] = {
 	{ }
 };
 
-static struct hda_verb ad1988_6stack_fp_init_verbs[] = {
+static const struct hda_verb ad1988_6stack_fp_init_verbs[] = {
 	/* Headphone; unmute as default */
 	{0x03, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
 	/* Port-A front headphon path */
@@ -2509,7 +2509,7 @@ static struct hda_verb ad1988_6stack_fp_init_verbs[] = {
 	{ }
 };
 
-static struct hda_verb ad1988_capture_init_verbs[] = {
+static const struct hda_verb ad1988_capture_init_verbs[] = {
 	/* mute analog mix */
 	{0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)},
 	{0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1)},
@@ -2527,7 +2527,7 @@ static struct hda_verb ad1988_capture_init_verbs[] = {
 	{ }
 };
 
-static struct hda_verb ad1988_spdif_init_verbs[] = {
+static const struct hda_verb ad1988_spdif_init_verbs[] = {
 	/* SPDIF out sel */
 	{0x02, AC_VERB_SET_CONNECT_SEL, 0x0}, /* PCM */
 	{0x0b, AC_VERB_SET_CONNECT_SEL, 0x0}, /* ADC1 */
@@ -2539,14 +2539,14 @@ static struct hda_verb ad1988_spdif_init_verbs[] = {
 	{ }
 };
 
-static struct hda_verb ad1988_spdif_in_init_verbs[] = {
+static const struct hda_verb ad1988_spdif_in_init_verbs[] = {
 	/* unmute SPDIF input pin */
 	{0x1c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
 	{ }
 };
 
 /* AD1989 has no ADC -> SPDIF route */
-static struct hda_verb ad1989_spdif_init_verbs[] = {
+static const struct hda_verb ad1989_spdif_init_verbs[] = {
 	/* SPDIF-1 out pin */
 	{0x1b, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
 	{0x1b, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE | 0x27}, /* 0dB */
@@ -2559,7 +2559,7 @@ static struct hda_verb ad1989_spdif_init_verbs[] = {
 /*
  * verbs for 3stack (+dig)
  */
-static struct hda_verb ad1988_3stack_ch2_init[] = {
+static const struct hda_verb ad1988_3stack_ch2_init[] = {
 	/* set port-C to line-in */
 	{ 0x15, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE },
 	{ 0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN },
@@ -2569,7 +2569,7 @@ static struct hda_verb ad1988_3stack_ch2_init[] = {
 	{ } /* end */
 };
 
-static struct hda_verb ad1988_3stack_ch6_init[] = {
+static const struct hda_verb ad1988_3stack_ch6_init[] = {
 	/* set port-C to surround out */
 	{ 0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
 	{ 0x15, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE },
@@ -2579,12 +2579,12 @@ static struct hda_verb ad1988_3stack_ch6_init[] = {
 	{ } /* end */
 };
 
-static struct hda_channel_mode ad1988_3stack_modes[2] = {
+static const struct hda_channel_mode ad1988_3stack_modes[2] = {
 	{ 2, ad1988_3stack_ch2_init },
 	{ 6, ad1988_3stack_ch6_init },
 };
 
-static struct hda_verb ad1988_3stack_init_verbs[] = {
+static const struct hda_verb ad1988_3stack_init_verbs[] = {
 	/* Front, Surround, CLFE, side DAC; unmute as default */
 	{0x04, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
 	{0x06, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
@@ -2644,13 +2644,13 @@ static struct hda_verb ad1988_3stack_init_verbs[] = {
 /*
  * verbs for laptop mode (+dig)
  */
-static struct hda_verb ad1988_laptop_hp_on[] = {
+static const struct hda_verb ad1988_laptop_hp_on[] = {
 	/* unmute port-A and mute port-D */
 	{ 0x11, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE },
 	{ 0x12, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE },
 	{ } /* end */
 };
-static struct hda_verb ad1988_laptop_hp_off[] = {
+static const struct hda_verb ad1988_laptop_hp_off[] = {
 	/* mute port-A and unmute port-D */
 	{ 0x11, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE },
 	{ 0x12, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE },
@@ -2659,7 +2659,7 @@ static struct hda_verb ad1988_laptop_hp_off[] = {
 
 #define AD1988_HP_EVENT	0x01
 
-static struct hda_verb ad1988_laptop_init_verbs[] = {
+static const struct hda_verb ad1988_laptop_init_verbs[] = {
 	/* Front, Surround, CLFE, side DAC; unmute as default */
 	{0x04, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
 	{0x06, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
@@ -2723,7 +2723,7 @@ static void ad1988_laptop_unsol_event(struct hda_codec *codec, unsigned int res)
 } 
 
 #ifdef CONFIG_SND_HDA_POWER_SAVE
-static struct hda_amp_list ad1988_loopbacks[] = {
+static const struct hda_amp_list ad1988_loopbacks[] = {
 	{ 0x20, HDA_INPUT, 0 }, /* Front Mic */
 	{ 0x20, HDA_INPUT, 1 }, /* Line */
 	{ 0x20, HDA_INPUT, 4 }, /* Mic */
@@ -2741,7 +2741,7 @@ enum {
 	AD_CTL_WIDGET_MUTE,
 	AD_CTL_BIND_MUTE,
 };
-static struct snd_kcontrol_new ad1988_control_templates[] = {
+static const struct snd_kcontrol_new ad1988_control_templates[] = {
 	HDA_CODEC_VOLUME(NULL, 0, 0, 0),
 	HDA_CODEC_MUTE(NULL, 0, 0, 0),
 	HDA_BIND_MUTE(NULL, 0, 0, 0),
@@ -2770,18 +2770,18 @@ static int add_control(struct ad198x_spec *spec, int type, const char *name,
 #define AD1988_PIN_CD_NID		0x18
 #define AD1988_PIN_BEEP_NID		0x10
 
-static hda_nid_t ad1988_mixer_nids[8] = {
+static const hda_nid_t ad1988_mixer_nids[8] = {
 	/* A     B     C     D     E     F     G     H */
 	0x22, 0x2b, 0x2c, 0x29, 0x26, 0x2a, 0x27, 0x28
 };
 
 static inline hda_nid_t ad1988_idx_to_dac(struct hda_codec *codec, int idx)
 {
-	static hda_nid_t idx_to_dac[8] = {
+	static const hda_nid_t idx_to_dac[8] = {
 		/* A     B     C     D     E     F     G     H */
 		0x04, 0x06, 0x05, 0x04, 0x0a, 0x06, 0x05, 0x0a
 	};
-	static hda_nid_t idx_to_dac_rev2[8] = {
+	static const hda_nid_t idx_to_dac_rev2[8] = {
 		/* A     B     C     D     E     F     G     H */
 		0x04, 0x05, 0x0a, 0x04, 0x06, 0x05, 0x0a, 0x06
 	};
@@ -2791,13 +2791,13 @@ static inline hda_nid_t ad1988_idx_to_dac(struct hda_codec *codec, int idx)
 		return idx_to_dac[idx];
 }
 
-static hda_nid_t ad1988_boost_nids[8] = {
+static const hda_nid_t ad1988_boost_nids[8] = {
 	0x38, 0x39, 0x3a, 0x3d, 0x3c, 0x3b, 0, 0
 };
 
 static int ad1988_pin_idx(hda_nid_t nid)
 {
-	static hda_nid_t ad1988_io_pins[8] = {
+	static const hda_nid_t ad1988_io_pins[8] = {
 		0x11, 0x14, 0x15, 0x12, 0x17, 0x16, 0x24, 0x25
 	};
 	int i;
@@ -2809,7 +2809,7 @@ static int ad1988_pin_idx(hda_nid_t nid)
 
 static int ad1988_pin_to_loopback_idx(hda_nid_t nid)
 {
-	static int loopback_idx[8] = {
+	static const int loopback_idx[8] = {
 		2, 0, 1, 3, 4, 5, 1, 4
 	};
 	switch (nid) {
@@ -2822,7 +2822,7 @@ static int ad1988_pin_to_loopback_idx(hda_nid_t nid)
 
 static int ad1988_pin_to_adc_idx(hda_nid_t nid)
 {
-	static int adc_idx[8] = {
+	static const int adc_idx[8] = {
 		0, 1, 2, 8, 4, 3, 6, 7
 	};
 	switch (nid) {
@@ -3154,7 +3154,7 @@ static const char * const ad1988_models[AD1988_MODEL_LAST] = {
 	[AD1988_AUTO]		= "auto",
 };
 
-static struct snd_pci_quirk ad1988_cfg_tbl[] = {
+static const struct snd_pci_quirk ad1988_cfg_tbl[] = {
 	SND_PCI_QUIRK(0x1043, 0x81ec, "Asus P5B-DLX", AD1988_6STACK_DIG),
 	SND_PCI_QUIRK(0x1043, 0x81f6, "Asus M2N-SLI", AD1988_6STACK_DIG),
 	SND_PCI_QUIRK(0x1043, 0x8277, "Asus P5K-E/WIFI-AP", AD1988_6STACK_DIG),
@@ -3342,21 +3342,21 @@ static int patch_ad1988(struct hda_codec *codec)
  * but no build-up framework is given, so far.
  */
 
-static hda_nid_t ad1884_dac_nids[1] = {
+static const hda_nid_t ad1884_dac_nids[1] = {
 	0x04,
 };
 
-static hda_nid_t ad1884_adc_nids[2] = {
+static const hda_nid_t ad1884_adc_nids[2] = {
 	0x08, 0x09,
 };
 
-static hda_nid_t ad1884_capsrc_nids[2] = {
+static const hda_nid_t ad1884_capsrc_nids[2] = {
 	0x0c, 0x0d,
 };
 
 #define AD1884_SPDIF_OUT	0x02
 
-static struct hda_input_mux ad1884_capture_source = {
+static const struct hda_input_mux ad1884_capture_source = {
 	.num_items = 4,
 	.items = {
 		{ "Front Mic", 0x0 },
@@ -3366,7 +3366,7 @@ static struct hda_input_mux ad1884_capture_source = {
 	},
 };
 
-static struct snd_kcontrol_new ad1884_base_mixers[] = {
+static const struct snd_kcontrol_new ad1884_base_mixers[] = {
 	HDA_CODEC_VOLUME("PCM Playback Volume", 0x04, 0x0, HDA_OUTPUT),
 	/* HDA_CODEC_VOLUME_IDX("PCM Playback Volume", 1, 0x03, 0x0, HDA_OUTPUT), */
 	HDA_CODEC_MUTE("Headphone Playback Switch", 0x11, 0x0, HDA_OUTPUT),
@@ -3410,7 +3410,7 @@ static struct snd_kcontrol_new ad1884_base_mixers[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1984_dmic_mixers[] = {
+static const struct snd_kcontrol_new ad1984_dmic_mixers[] = {
 	HDA_CODEC_VOLUME("Digital Mic Capture Volume", 0x05, 0x0, HDA_INPUT),
 	HDA_CODEC_MUTE("Digital Mic Capture Switch", 0x05, 0x0, HDA_INPUT),
 	HDA_CODEC_VOLUME_IDX("Digital Mic Capture Volume", 1, 0x06, 0x0,
@@ -3423,7 +3423,7 @@ static struct snd_kcontrol_new ad1984_dmic_mixers[] = {
 /*
  * initialization verbs
  */
-static struct hda_verb ad1884_init_verbs[] = {
+static const struct hda_verb ad1884_init_verbs[] = {
 	/* DACs; mute as default */
 	{0x03, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
 	{0x04, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
@@ -3469,7 +3469,7 @@ static struct hda_verb ad1884_init_verbs[] = {
 };
 
 #ifdef CONFIG_SND_HDA_POWER_SAVE
-static struct hda_amp_list ad1884_loopbacks[] = {
+static const struct hda_amp_list ad1884_loopbacks[] = {
 	{ 0x20, HDA_INPUT, 0 }, /* Front Mic */
 	{ 0x20, HDA_INPUT, 1 }, /* Mic */
 	{ 0x20, HDA_INPUT, 2 }, /* CD */
@@ -3541,7 +3541,7 @@ static int patch_ad1884(struct hda_codec *codec)
 /*
  * Lenovo Thinkpad T61/X61
  */
-static struct hda_input_mux ad1984_thinkpad_capture_source = {
+static const struct hda_input_mux ad1984_thinkpad_capture_source = {
 	.num_items = 4,
 	.items = {
 		{ "Mic", 0x0 },
@@ -3555,7 +3555,7 @@ static struct hda_input_mux ad1984_thinkpad_capture_source = {
 /*
  * Dell Precision T3400
  */
-static struct hda_input_mux ad1984_dell_desktop_capture_source = {
+static const struct hda_input_mux ad1984_dell_desktop_capture_source = {
 	.num_items = 3,
 	.items = {
 		{ "Front Mic", 0x0 },
@@ -3565,7 +3565,7 @@ static struct hda_input_mux ad1984_dell_desktop_capture_source = {
 };
 
 
-static struct snd_kcontrol_new ad1984_thinkpad_mixers[] = {
+static const struct snd_kcontrol_new ad1984_thinkpad_mixers[] = {
 	HDA_CODEC_VOLUME("PCM Playback Volume", 0x04, 0x0, HDA_OUTPUT),
 	/* HDA_CODEC_VOLUME_IDX("PCM Playback Volume", 1, 0x03, 0x0, HDA_OUTPUT), */
 	HDA_CODEC_MUTE("Headphone Playback Switch", 0x11, 0x0, HDA_OUTPUT),
@@ -3611,7 +3611,7 @@ static struct snd_kcontrol_new ad1984_thinkpad_mixers[] = {
 };
 
 /* additional verbs */
-static struct hda_verb ad1984_thinkpad_init_verbs[] = {
+static const struct hda_verb ad1984_thinkpad_init_verbs[] = {
 	/* Port-E (docking station mic) pin */
 	{0x1c, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80},
 	{0x1c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
@@ -3629,7 +3629,7 @@ static struct hda_verb ad1984_thinkpad_init_verbs[] = {
 /*
  * Dell Precision T3400
  */
-static struct snd_kcontrol_new ad1984_dell_desktop_mixers[] = {
+static const struct snd_kcontrol_new ad1984_dell_desktop_mixers[] = {
 	HDA_CODEC_VOLUME("PCM Playback Volume", 0x04, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Headphone Playback Switch", 0x11, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Speaker Playback Switch", 0x12, 0x0, HDA_OUTPUT),
@@ -3680,7 +3680,7 @@ static int ad1984_pcm_dmic_cleanup(struct hda_pcm_stream *hinfo,
 	return 0;
 }
 
-static struct hda_pcm_stream ad1984_pcm_dmic_capture = {
+static const struct hda_pcm_stream ad1984_pcm_dmic_capture = {
 	.substreams = 2,
 	.channels_min = 2,
 	.channels_max = 2,
@@ -3722,7 +3722,7 @@ static const char * const ad1984_models[AD1984_MODELS] = {
 	[AD1984_DELL_DESKTOP]	= "dell_desktop",
 };
 
-static struct snd_pci_quirk ad1984_cfg_tbl[] = {
+static const struct snd_pci_quirk ad1984_cfg_tbl[] = {
 	/* Lenovo Thinkpad T61/X61 */
 	SND_PCI_QUIRK_VENDOR(0x17aa, "Lenovo Thinkpad", AD1984_THINKPAD),
 	SND_PCI_QUIRK(0x1028, 0x0214, "Dell T3400", AD1984_DELL_DESKTOP),
@@ -3787,7 +3787,7 @@ static int patch_ad1984(struct hda_codec *codec)
  * We share the single DAC for both HP and line-outs (see AD1884/1984).
  */
 
-static hda_nid_t ad1884a_dac_nids[1] = {
+static const hda_nid_t ad1884a_dac_nids[1] = {
 	0x03,
 };
 
@@ -3796,7 +3796,7 @@ static hda_nid_t ad1884a_dac_nids[1] = {
 
 #define AD1884A_SPDIF_OUT	0x02
 
-static struct hda_input_mux ad1884a_capture_source = {
+static const struct hda_input_mux ad1884a_capture_source = {
 	.num_items = 5,
 	.items = {
 		{ "Front Mic", 0x0 },
@@ -3807,7 +3807,7 @@ static struct hda_input_mux ad1884a_capture_source = {
 	},
 };
 
-static struct snd_kcontrol_new ad1884a_base_mixers[] = {
+static const struct snd_kcontrol_new ad1884a_base_mixers[] = {
 	HDA_CODEC_VOLUME("Master Playback Volume", 0x21, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Master Playback Switch", 0x21, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Headphone Playback Switch", 0x11, 0x0, HDA_OUTPUT),
@@ -3859,7 +3859,7 @@ static struct snd_kcontrol_new ad1884a_base_mixers[] = {
 /*
  * initialization verbs
  */
-static struct hda_verb ad1884a_init_verbs[] = {
+static const struct hda_verb ad1884a_init_verbs[] = {
 	/* DACs; unmute as default */
 	{0x03, AC_VERB_SET_AMP_GAIN_MUTE, 0x27}, /* 0dB */
 	{0x04, AC_VERB_SET_AMP_GAIN_MUTE, 0x27}, /* 0dB */
@@ -3914,7 +3914,7 @@ static struct hda_verb ad1884a_init_verbs[] = {
 };
 
 #ifdef CONFIG_SND_HDA_POWER_SAVE
-static struct hda_amp_list ad1884a_loopbacks[] = {
+static const struct hda_amp_list ad1884a_loopbacks[] = {
 	{ 0x20, HDA_INPUT, 0 }, /* Front Mic */
 	{ 0x20, HDA_INPUT, 1 }, /* Mic */
 	{ 0x20, HDA_INPUT, 2 }, /* CD */
@@ -3947,7 +3947,7 @@ static int ad1884a_mobile_master_sw_put(struct snd_kcontrol *kcontrol,
 	return ret;
 }
 
-static struct snd_kcontrol_new ad1884a_laptop_mixers[] = {
+static const struct snd_kcontrol_new ad1884a_laptop_mixers[] = {
 	HDA_CODEC_VOLUME("Master Playback Volume", 0x21, 0x0, HDA_OUTPUT),
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -3975,7 +3975,7 @@ static struct snd_kcontrol_new ad1884a_laptop_mixers[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1884a_mobile_mixers[] = {
+static const struct snd_kcontrol_new ad1884a_mobile_mixers[] = {
 	HDA_CODEC_VOLUME("Master Playback Volume", 0x21, 0x0, HDA_OUTPUT),
 	/*HDA_CODEC_MUTE("Master Playback Switch", 0x21, 0x0, HDA_OUTPUT),*/
 	{
@@ -4095,7 +4095,7 @@ static int ad1884a_laptop_init(struct hda_codec *codec)
 }
 
 /* additional verbs for laptop model */
-static struct hda_verb ad1884a_laptop_verbs[] = {
+static const struct hda_verb ad1884a_laptop_verbs[] = {
 	/* Port-A (HP) pin - always unmuted */
 	{0x11, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
 	/* Port-F (int speaker) mixer - route only from analog mixer */
@@ -4126,7 +4126,7 @@ static struct hda_verb ad1884a_laptop_verbs[] = {
 	{ } /* end */
 };
 
-static struct hda_verb ad1884a_mobile_verbs[] = {
+static const struct hda_verb ad1884a_mobile_verbs[] = {
 	/* DACs; unmute as default */
 	{0x03, AC_VERB_SET_AMP_GAIN_MUTE, 0x27}, /* 0dB */
 	{0x04, AC_VERB_SET_AMP_GAIN_MUTE, 0x27}, /* 0dB */
@@ -4181,7 +4181,7 @@ static struct hda_verb ad1884a_mobile_verbs[] = {
  * 0x17 - built-in mic
  */
 
-static struct hda_verb ad1984a_thinkpad_verbs[] = {
+static const struct hda_verb ad1984a_thinkpad_verbs[] = {
 	/* HP unmute */
 	{0x11, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
 	/* analog mix */
@@ -4198,7 +4198,7 @@ static struct hda_verb ad1984a_thinkpad_verbs[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1984a_thinkpad_mixers[] = {
+static const struct snd_kcontrol_new ad1984a_thinkpad_mixers[] = {
 	HDA_CODEC_VOLUME("Master Playback Volume", 0x21, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Master Playback Switch", 0x21, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME("PCM Playback Volume", 0x20, 0x5, HDA_INPUT),
@@ -4219,7 +4219,7 @@ static struct snd_kcontrol_new ad1984a_thinkpad_mixers[] = {
 	{ } /* end */
 };
 
-static struct hda_input_mux ad1984a_thinkpad_capture_source = {
+static const struct hda_input_mux ad1984a_thinkpad_capture_source = {
 	.num_items = 3,
 	.items = {
 		{ "Mic", 0x0 },
@@ -4262,7 +4262,7 @@ static int ad1984a_thinkpad_init(struct hda_codec *codec)
  * 0x15 - mic-in
  */
 
-static struct hda_verb ad1984a_precision_verbs[] = {
+static const struct hda_verb ad1984a_precision_verbs[] = {
 	/* Unmute main output path */
 	{0x03, AC_VERB_SET_AMP_GAIN_MUTE, 0x27}, /* 0dB */
 	{0x21, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE + 0x1f}, /* 0dB */
@@ -4288,7 +4288,7 @@ static struct hda_verb ad1984a_precision_verbs[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1984a_precision_mixers[] = {
+static const struct snd_kcontrol_new ad1984a_precision_mixers[] = {
 	HDA_CODEC_VOLUME("Master Playback Volume", 0x21, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Master Playback Switch", 0x21, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME("PCM Playback Volume", 0x20, 0x5, HDA_INPUT),
@@ -4344,7 +4344,7 @@ static int ad1984a_precision_init(struct hda_codec *codec)
  * digital-mic (0x17) - Internal mic
  */
 
-static struct hda_verb ad1984a_touchsmart_verbs[] = {
+static const struct hda_verb ad1984a_touchsmart_verbs[] = {
 	/* DACs; unmute as default */
 	{0x03, AC_VERB_SET_AMP_GAIN_MUTE, 0x27}, /* 0dB */
 	{0x04, AC_VERB_SET_AMP_GAIN_MUTE, 0x27}, /* 0dB */
@@ -4396,7 +4396,7 @@ static struct hda_verb ad1984a_touchsmart_verbs[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1984a_touchsmart_mixers[] = {
+static const struct snd_kcontrol_new ad1984a_touchsmart_mixers[] = {
 	HDA_CODEC_VOLUME("Master Playback Volume", 0x21, 0x0, HDA_OUTPUT),
 /*	HDA_CODEC_MUTE("Master Playback Switch", 0x21, 0x0, HDA_OUTPUT),*/
 	{
@@ -4475,7 +4475,7 @@ static const char * const ad1884a_models[AD1884A_MODELS] = {
 	[AD1984A_PRECISION]	= "precision",
 };
 
-static struct snd_pci_quirk ad1884a_cfg_tbl[] = {
+static const struct snd_pci_quirk ad1884a_cfg_tbl[] = {
 	SND_PCI_QUIRK(0x1028, 0x04ac, "Precision R5500", AD1984A_PRECISION),
 	SND_PCI_QUIRK(0x103c, 0x3030, "HP", AD1884A_MOBILE),
 	SND_PCI_QUIRK(0x103c, 0x3037, "HP 2230s", AD1884A_LAPTOP),
@@ -4614,22 +4614,22 @@ static int patch_ad1884a(struct hda_codec *codec)
  * port-G - rear clfe-out (6stack)
  */
 
-static hda_nid_t ad1882_dac_nids[3] = {
+static const hda_nid_t ad1882_dac_nids[3] = {
 	0x04, 0x03, 0x05
 };
 
-static hda_nid_t ad1882_adc_nids[2] = {
+static const hda_nid_t ad1882_adc_nids[2] = {
 	0x08, 0x09,
 };
 
-static hda_nid_t ad1882_capsrc_nids[2] = {
+static const hda_nid_t ad1882_capsrc_nids[2] = {
 	0x0c, 0x0d,
 };
 
 #define AD1882_SPDIF_OUT	0x02
 
 /* list: 0x11, 0x39, 0x3a, 0x18, 0x3c, 0x3b, 0x12, 0x20 */
-static struct hda_input_mux ad1882_capture_source = {
+static const struct hda_input_mux ad1882_capture_source = {
 	.num_items = 5,
 	.items = {
 		{ "Front Mic", 0x1 },
@@ -4641,7 +4641,7 @@ static struct hda_input_mux ad1882_capture_source = {
 };
 
 /* list: 0x11, 0x39, 0x3a, 0x3c, 0x18, 0x1f, 0x12, 0x20 */
-static struct hda_input_mux ad1882a_capture_source = {
+static const struct hda_input_mux ad1882a_capture_source = {
 	.num_items = 5,
 	.items = {
 		{ "Front Mic", 0x1 },
@@ -4652,7 +4652,7 @@ static struct hda_input_mux ad1882a_capture_source = {
 	},
 };
 
-static struct snd_kcontrol_new ad1882_base_mixers[] = {
+static const struct snd_kcontrol_new ad1882_base_mixers[] = {
 	HDA_CODEC_VOLUME("Front Playback Volume", 0x04, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME("Surround Playback Volume", 0x03, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME_MONO("Center Playback Volume", 0x05, 1, 0x0, HDA_OUTPUT),
@@ -4694,7 +4694,7 @@ static struct snd_kcontrol_new ad1882_base_mixers[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1882_loopback_mixers[] = {
+static const struct snd_kcontrol_new ad1882_loopback_mixers[] = {
 	HDA_CODEC_VOLUME("Front Mic Playback Volume", 0x20, 0x00, HDA_INPUT),
 	HDA_CODEC_MUTE("Front Mic Playback Switch", 0x20, 0x00, HDA_INPUT),
 	HDA_CODEC_VOLUME("Mic Playback Volume", 0x20, 0x01, HDA_INPUT),
@@ -4706,7 +4706,7 @@ static struct snd_kcontrol_new ad1882_loopback_mixers[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1882a_loopback_mixers[] = {
+static const struct snd_kcontrol_new ad1882a_loopback_mixers[] = {
 	HDA_CODEC_VOLUME("Front Mic Playback Volume", 0x20, 0x00, HDA_INPUT),
 	HDA_CODEC_MUTE("Front Mic Playback Switch", 0x20, 0x00, HDA_INPUT),
 	HDA_CODEC_VOLUME("Mic Playback Volume", 0x20, 0x04, HDA_INPUT),
@@ -4719,7 +4719,7 @@ static struct snd_kcontrol_new ad1882a_loopback_mixers[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1882_3stack_mixers[] = {
+static const struct snd_kcontrol_new ad1882_3stack_mixers[] = {
 	HDA_CODEC_MUTE("Surround Playback Switch", 0x15, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE_MONO("Center Playback Switch", 0x17, 1, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE_MONO("LFE Playback Switch", 0x17, 2, 0x0, HDA_OUTPUT),
@@ -4733,14 +4733,14 @@ static struct snd_kcontrol_new ad1882_3stack_mixers[] = {
 	{ } /* end */
 };
 
-static struct snd_kcontrol_new ad1882_6stack_mixers[] = {
+static const struct snd_kcontrol_new ad1882_6stack_mixers[] = {
 	HDA_CODEC_MUTE("Surround Playback Switch", 0x16, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE_MONO("Center Playback Switch", 0x24, 1, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE_MONO("LFE Playback Switch", 0x24, 2, 0x0, HDA_OUTPUT),
 	{ } /* end */
 };
 
-static struct hda_verb ad1882_ch2_init[] = {
+static const struct hda_verb ad1882_ch2_init[] = {
 	{0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN},
 	{0x2c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)},
 	{0x2c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1)},
@@ -4750,7 +4750,7 @@ static struct hda_verb ad1882_ch2_init[] = {
 	{ } /* end */
 };
 
-static struct hda_verb ad1882_ch4_init[] = {
+static const struct hda_verb ad1882_ch4_init[] = {
 	{0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
 	{0x2c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
 	{0x2c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)},
@@ -4760,7 +4760,7 @@ static struct hda_verb ad1882_ch4_init[] = {
 	{ } /* end */
 };
 
-static struct hda_verb ad1882_ch6_init[] = {
+static const struct hda_verb ad1882_ch6_init[] = {
 	{0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
 	{0x2c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
 	{0x2c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)},
@@ -4770,7 +4770,7 @@ static struct hda_verb ad1882_ch6_init[] = {
 	{ } /* end */
 };
 
-static struct hda_channel_mode ad1882_modes[3] = {
+static const struct hda_channel_mode ad1882_modes[3] = {
 	{ 2, ad1882_ch2_init },
 	{ 4, ad1882_ch4_init },
 	{ 6, ad1882_ch6_init },
@@ -4779,7 +4779,7 @@ static struct hda_channel_mode ad1882_modes[3] = {
 /*
  * initialization verbs
  */
-static struct hda_verb ad1882_init_verbs[] = {
+static const struct hda_verb ad1882_init_verbs[] = {
 	/* DACs; mute as default */
 	{0x03, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
 	{0x04, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
@@ -4848,7 +4848,7 @@ static struct hda_verb ad1882_init_verbs[] = {
 };
 
 #ifdef CONFIG_SND_HDA_POWER_SAVE
-static struct hda_amp_list ad1882_loopbacks[] = {
+static const struct hda_amp_list ad1882_loopbacks[] = {
 	{ 0x20, HDA_INPUT, 0 }, /* Front Mic */
 	{ 0x20, HDA_INPUT, 1 }, /* Mic */
 	{ 0x20, HDA_INPUT, 4 }, /* Line */
@@ -4945,7 +4945,7 @@ static int patch_ad1882(struct hda_codec *codec)
 /*
  * patch entries
  */
-static struct hda_codec_preset snd_hda_preset_analog[] = {
+static const struct hda_codec_preset snd_hda_preset_analog[] = {
 	{ .id = 0x11d4184a, .name = "AD1884A", .patch = patch_ad1884a },
 	{ .id = 0x11d41882, .name = "AD1882", .patch = patch_ad1882 },
 	{ .id = 0x11d41883, .name = "AD1883", .patch = patch_ad1884a },