[ALSA] ac97 - Clean up obsolete workarounds

Modules: AC97 Codec

Clean up obsolete workarounds provided only for nm256.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

2 files changed, 0 insertions, 11 deletions

diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
index dee766c17e9c..b45a73712748 100644
--- a/include/sound/ac97_codec.h
+++ b/include/sound/ac97_codec.h
@@ -446,8 +446,6 @@ struct snd_ac97_template {
         unsigned short num;     /* number of codec: 0 = primary, 1 = secondary */
         unsigned short addr;    /* physical address of codec [0-3] */
         unsigned int scaps;     /* driver capabilities */
-        unsigned int limited_regs; /* allow limited registers only */
-        DECLARE_BITMAP(reg_accessed, 0x80); /* bit flags */
         const struct snd_ac97_res_table *res_table;     /* static resolution */
 };
 
@@ -477,7 +475,6 @@ struct snd_ac97 {
         unsigned int rates[6];  /* see AC97_RATES_* defines */
         unsigned int spdif_status;
         unsigned short regs[0x80]; /* register cache */
-        unsigned int limited_regs; /* allow limited registers only */
         DECLARE_BITMAP(reg_accessed, 0x80); /* bit flags */
         union {                 /* vendor specific code */
                 struct {
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index c5bbdcbf5422..278319bbdea1 100644
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -192,9 +192,6 @@ static const struct ac97_codec_id snd_ac97_codec_ids[] = {
 
 static int snd_ac97_valid_reg(struct snd_ac97 *ac97, unsigned short reg)
 {
-        if (ac97->limited_regs && ! test_bit(reg, ac97->reg_accessed))
-                return 0;
-
         /* filter some registers for buggy codecs */
         switch (ac97->id) {
         case AC97_ID_AK4540:
@@ -1008,9 +1005,6 @@ static int snd_ac97_try_volume_mix(struct snd_ac97 * ac97, int reg)
                 break;
         }
 
-        if (ac97->limited_regs && test_bit(reg, ac97->reg_accessed))
-                return 1; /* allow without check */
-
         val = snd_ac97_read(ac97, reg);
         if (!(val & mask)) {
                 /* nothing seems to be here - mute flag is not set */
@@ -1866,8 +1860,6 @@ int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template,
         ac97->num = template->num;
         ac97->addr = template->addr;
         ac97->scaps = template->scaps;
-        ac97->limited_regs = template->limited_regs;
-        memcpy(ac97->reg_accessed, template->reg_accessed, sizeof(ac97->reg_accessed));
         ac97->res_table = template->res_table;
         bus->codec[ac97->num] = ac97;
         mutex_init(&ac97->reg_mutex);