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