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ALSA: hda/realtek - Cache COEF 0 value

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The COEF #0 value represents a sort of device id, so it's supposedly
constant while operation.  Better to use the cached value instead of
reading it at each time from the performance POV.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2011-10-17 16:50:59 +02:00
parent e16fb6d140
commit 1bb7e43e22
1 changed files with 28 additions and 20 deletions
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48
sound/pci/hda/patch_realtek.c
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@ -197,6 +197,7 @@ struct alc_spec {
/* for PLL fix */
hda_nid_t pll_nid;
unsigned int pll_coef_idx, pll_coef_bit;
unsigned int coef0;
/* fix-up list */
int fixup_id;
@ -1554,6 +1555,15 @@ static void alc_write_coef_idx(struct hda_codec *codec, unsigned int coef_idx,
coef_val);
}
/* a special bypass for COEF 0; read the cached value at the second time */
static unsigned int alc_get_coef0(struct hda_codec *codec)
{
struct alc_spec *spec = codec->spec;
if (!spec->coef0)
spec->coef0 = alc_read_coef_idx(codec, 0);
return spec->coef0;
}
/*
* Digital I/O handling
*/
@ -2510,13 +2520,11 @@ static struct alc_codec_rename_table rename_tbl[] = {
static int alc_codec_rename_from_preset(struct hda_codec *codec)
{
const struct alc_codec_rename_table *p;
unsigned short coef;
for (p = rename_tbl; p->vendor_id; p++) {
if (p->vendor_id != codec->vendor_id)
continue;
coef = alc_read_coef_idx(codec, 0);
if ((coef & p->coef_mask) == p->coef_bits)
if ((alc_get_coef0(codec) & p->coef_mask) == p->coef_bits)
return alc_codec_rename(codec, p->name);
}
return 0;
@ -4613,9 +4621,9 @@ static void alc269_toggle_power_output(struct hda_codec *codec, int power_up)
static void alc269_shutup(struct hda_codec *codec)
{
if ((alc_read_coef_idx(codec, 0) & 0x00ff) == 0x017)
if ((alc_get_coef0(codec) & 0x00ff) == 0x017)
alc269_toggle_power_output(codec, 0);
if ((alc_read_coef_idx(codec, 0) & 0x00ff) == 0x018) {
if ((alc_get_coef0(codec) & 0x00ff) == 0x018) {
alc269_toggle_power_output(codec, 0);
msleep(150);
}
@ -4624,19 +4632,19 @@ static void alc269_shutup(struct hda_codec *codec)
#ifdef CONFIG_PM
static int alc269_resume(struct hda_codec *codec)
{
if ((alc_read_coef_idx(codec, 0) & 0x00ff) == 0x018) {
if ((alc_get_coef0(codec) & 0x00ff) == 0x018) {
alc269_toggle_power_output(codec, 0);
msleep(150);
}
codec->patch_ops.init(codec);
if ((alc_read_coef_idx(codec, 0) & 0x00ff) == 0x017) {
if ((alc_get_coef0(codec) & 0x00ff) == 0x017) {
alc269_toggle_power_output(codec, 1);
msleep(200);
}
if ((alc_read_coef_idx(codec, 0) & 0x00ff) == 0x018)
if ((alc_get_coef0(codec) & 0x00ff) == 0x018)
alc269_toggle_power_output(codec, 1);
snd_hda_codec_resume_amp(codec);
@ -4954,23 +4962,23 @@ static int alc269_fill_coef(struct hda_codec *codec)
{
int val;
if ((alc_read_coef_idx(codec, 0) & 0x00ff) < 0x015) {
if ((alc_get_coef0(codec) & 0x00ff) < 0x015) {
alc_write_coef_idx(codec, 0xf, 0x960b);
alc_write_coef_idx(codec, 0xe, 0x8817);
}
if ((alc_read_coef_idx(codec, 0) & 0x00ff) == 0x016) {
if ((alc_get_coef0(codec) & 0x00ff) == 0x016) {
alc_write_coef_idx(codec, 0xf, 0x960b);
alc_write_coef_idx(codec, 0xe, 0x8814);
}
if ((alc_read_coef_idx(codec, 0) & 0x00ff) == 0x017) {
if ((alc_get_coef0(codec) & 0x00ff) == 0x017) {
val = alc_read_coef_idx(codec, 0x04);
/* Power up output pin */
alc_write_coef_idx(codec, 0x04, val | (1<<11));
}
if ((alc_read_coef_idx(codec, 0) & 0x00ff) == 0x018) {
if ((alc_get_coef0(codec) & 0x00ff) == 0x018) {
val = alc_read_coef_idx(codec, 0xd);
if ((val & 0x0c00) >> 10 != 0x1) {
/* Capless ramp up clock control */
@ -5014,21 +5022,23 @@ static int patch_alc269(struct hda_codec *codec)
goto error;
if (codec->vendor_id == 0x10ec0269) {
unsigned int coef;
spec->codec_variant = ALC269_TYPE_ALC269VA;
coef = alc_read_coef_idx(codec, 0);
if ((coef & 0x00f0) == 0x0010) {
switch (alc_get_coef0(codec) & 0x00f0) {
case 0x0010:
if (codec->bus->pci->subsystem_vendor == 0x1025 &&
spec->cdefine.platform_type == 1)
err = alc_codec_rename(codec, "ALC271X");
spec->codec_variant = ALC269_TYPE_ALC269VB;
} else if ((coef & 0x00f0) == 0x0020) {
break;
case 0x0020:
if (codec->bus->pci->subsystem_vendor == 0x17aa &&
codec->bus->pci->subsystem_device == 0x21f3)
err = alc_codec_rename(codec, "ALC3202");
spec->codec_variant = ALC269_TYPE_ALC269VC;
} else
break;
default:
alc_fix_pll_init(codec, 0x20, 0x04, 15);
}
if (err < 0)
goto error;
alc269_fill_coef(codec);
@ -5615,7 +5625,6 @@ static int patch_alc662(struct hda_codec *codec)
{
struct alc_spec *spec;
int err = 0;
int coef;
spec = kzalloc(sizeof(*spec), GFP_KERNEL);
if (!spec)
@ -5636,8 +5645,7 @@ static int patch_alc662(struct hda_codec *codec)
if (err < 0)
goto error;
coef = alc_read_coef_idx(codec, 0);
if (coef & (1 << 14) &&
if ((alc_get_coef0(codec) & (1 << 14)) &&
codec->bus->pci->subsystem_vendor == 0x1025 &&
spec->cdefine.platform_type == 1) {
if (alc_codec_rename(codec, "ALC272X") < 0)