[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>

diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
index dee766c..b45a737 100644 (file)
--- 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 c5bbdcb..278319b 100644 (file)
--- 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);