aboutsummaryrefslogtreecommitdiffstats
path: root/sound/soc/codecs/wm8960.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/codecs/wm8960.c')
-rw-r--r--sound/soc/codecs/wm8960.c127
1 files changed, 84 insertions, 43 deletions
diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c
index 55112c1bba5e..0d167238a369 100644
--- a/sound/soc/codecs/wm8960.c
+++ b/sound/soc/codecs/wm8960.c
@@ -14,6 +14,7 @@
#include <linux/pm.h>
#include <linux/clk.h>
#include <linux/i2c.h>
+#include <linux/acpi.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -45,6 +46,8 @@
#define WM8960_DISOP 0x40
#define WM8960_DRES_MASK 0x30
+#define WM8960_DSCH_TOUT 600 /* discharge timeout, ms */
+
static bool is_pll_freq_available(unsigned int source, unsigned int target);
static int wm8960_set_pll(struct snd_soc_component *component,
unsigned int freq_in, unsigned int freq_out);
@@ -133,6 +136,7 @@ struct wm8960_priv {
int freq_in;
bool is_stream_in_use[2];
struct wm8960_data pdata;
+ ktime_t dsch_start;
};
#define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0)
@@ -608,11 +612,7 @@ static const int bclk_divs[] = {
* - lrclk = sysclk / dac_divs
* - 10 * bclk = sysclk / bclk_divs
*
- * If we cannot find an exact match for (sysclk, lrclk, bclk)
- * triplet, we relax the bclk such that bclk is chosen as the
- * closest available frequency greater than expected bclk.
- *
- * @wm8960_priv: wm8960 codec private data
+ * @wm8960: codec private data
* @mclk: MCLK used to derive sysclk
* @sysclk_idx: sysclk_divs index for found sysclk
* @dac_idx: dac_divs index for found lrclk
@@ -629,7 +629,7 @@ int wm8960_configure_sysclk(struct wm8960_priv *wm8960, int mclk,
{
int sysclk, bclk, lrclk;
int i, j, k;
- int diff, closest = mclk;
+ int diff;
/* marker for no match */
*bclk_idx = -1;
@@ -653,12 +653,6 @@ int wm8960_configure_sysclk(struct wm8960_priv *wm8960, int mclk,
*bclk_idx = k;
break;
}
- if (diff > 0 && closest > diff) {
- *sysclk_idx = i;
- *dac_idx = j;
- *bclk_idx = k;
- closest = diff;
- }
}
if (k != ARRAY_SIZE(bclk_divs))
break;
@@ -707,7 +701,13 @@ int wm8960_configure_pll(struct snd_soc_component *component, int freq_in,
best_freq_out = -EINVAL;
*sysclk_idx = *dac_idx = *bclk_idx = -1;
- for (i = 0; i < ARRAY_SIZE(sysclk_divs); ++i) {
+ /*
+ * From Datasheet, the PLL performs best when f2 is between
+ * 90MHz and 100MHz, the desired sysclk output is 11.2896MHz
+ * or 12.288MHz, then sysclkdiv = 2 is the best choice.
+ * So search sysclk_divs from 2 to 1 other than from 1 to 2.
+ */
+ for (i = ARRAY_SIZE(sysclk_divs) - 1; i >= 0; --i) {
if (sysclk_divs[i] == -1)
continue;
for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) {
@@ -742,13 +742,20 @@ static int wm8960_configure_clocking(struct snd_soc_component *component)
{
struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
int freq_out, freq_in;
- u16 iface1 = snd_soc_component_read32(component, WM8960_IFACE1);
+ u16 iface1 = snd_soc_component_read(component, WM8960_IFACE1);
int i, j, k;
int ret;
- if (!(iface1 & (1<<6))) {
- dev_dbg(component->dev,
- "Codec is slave mode, no need to configure clock\n");
+ /*
+ * For Slave mode clocking should still be configured,
+ * so this if statement should be removed, but some platform
+ * may not work if the sysclk is not configured, to avoid such
+ * compatible issue, just add '!wm8960->sysclk' condition in
+ * this if statement.
+ */
+ if (!(iface1 & (1 << 6)) && !wm8960->sysclk) {
+ dev_warn(component->dev,
+ "slave mode, but proceeding with no clock configuration\n");
return 0;
}
@@ -812,7 +819,7 @@ static int wm8960_hw_params(struct snd_pcm_substream *substream,
{
struct snd_soc_component *component = dai->component;
struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
- u16 iface = snd_soc_component_read32(component, WM8960_IFACE1) & 0xfff3;
+ u16 iface = snd_soc_component_read(component, WM8960_IFACE1) & 0xfff3;
bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
int i;
@@ -836,7 +843,7 @@ static int wm8960_hw_params(struct snd_pcm_substream *substream,
iface |= 0x000c;
break;
}
- /* fall through */
+ fallthrough;
default:
dev_err(component->dev, "unsupported width %d\n",
params_width(params));
@@ -860,8 +867,7 @@ static int wm8960_hw_params(struct snd_pcm_substream *substream,
wm8960->is_stream_in_use[tx] = true;
- if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_ON &&
- !wm8960->is_stream_in_use[!tx])
+ if (!wm8960->is_stream_in_use[!tx])
return wm8960_configure_clocking(component);
return 0;
@@ -879,7 +885,7 @@ static int wm8960_hw_free(struct snd_pcm_substream *substream,
return 0;
}
-static int wm8960_mute(struct snd_soc_dai *dai, int mute)
+static int wm8960_mute(struct snd_soc_dai *dai, int mute, int direction)
{
struct snd_soc_component *component = dai->component;
@@ -894,8 +900,9 @@ static int wm8960_set_bias_level_out3(struct snd_soc_component *component,
enum snd_soc_bias_level level)
{
struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
- u16 pm2 = snd_soc_component_read32(component, WM8960_POWER2);
+ u16 pm2 = snd_soc_component_read(component, WM8960_POWER2);
int ret;
+ ktime_t tout;
switch (level) {
case SND_SOC_BIAS_ON:
@@ -942,6 +949,11 @@ static int wm8960_set_bias_level_out3(struct snd_soc_component *component,
case SND_SOC_BIAS_STANDBY:
if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
+ /* ensure discharge is complete */
+ tout = WM8960_DSCH_TOUT - ktime_ms_delta(ktime_get(), wm8960->dsch_start);
+ if (tout > 0)
+ msleep(tout);
+
regcache_sync(wm8960->regmap);
/* Enable anti-pop features */
@@ -971,9 +983,9 @@ static int wm8960_set_bias_level_out3(struct snd_soc_component *component,
WM8960_POBCTRL | WM8960_SOFT_ST |
WM8960_BUFDCOPEN | WM8960_BUFIOEN);
- /* Disable VMID and VREF, let them discharge */
+ /* Disable VMID and VREF, mark discharge */
snd_soc_component_write(component, WM8960_POWER1, 0);
- msleep(600);
+ wm8960->dsch_start = ktime_get();
break;
}
@@ -984,7 +996,7 @@ static int wm8960_set_bias_level_capless(struct snd_soc_component *component,
enum snd_soc_bias_level level)
{
struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
- u16 pm2 = snd_soc_component_read32(component, WM8960_POWER2);
+ u16 pm2 = snd_soc_component_read(component, WM8960_POWER2);
int reg, ret;
switch (level) {
@@ -1203,7 +1215,7 @@ static int wm8960_set_pll(struct snd_soc_component *component,
if (!freq_in || !freq_out)
return 0;
- reg = snd_soc_component_read32(component, WM8960_PLL1) & ~0x3f;
+ reg = snd_soc_component_read(component, WM8960_PLL1) & ~0x3f;
reg |= pll_div.pre_div << 4;
reg |= pll_div.n;
@@ -1246,23 +1258,23 @@ static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
switch (div_id) {
case WM8960_SYSCLKDIV:
- reg = snd_soc_component_read32(component, WM8960_CLOCK1) & 0x1f9;
+ reg = snd_soc_component_read(component, WM8960_CLOCK1) & 0x1f9;
snd_soc_component_write(component, WM8960_CLOCK1, reg | div);
break;
case WM8960_DACDIV:
- reg = snd_soc_component_read32(component, WM8960_CLOCK1) & 0x1c7;
+ reg = snd_soc_component_read(component, WM8960_CLOCK1) & 0x1c7;
snd_soc_component_write(component, WM8960_CLOCK1, reg | div);
break;
case WM8960_OPCLKDIV:
- reg = snd_soc_component_read32(component, WM8960_PLL1) & 0x03f;
+ reg = snd_soc_component_read(component, WM8960_PLL1) & 0x03f;
snd_soc_component_write(component, WM8960_PLL1, reg | div);
break;
case WM8960_DCLKDIV:
- reg = snd_soc_component_read32(component, WM8960_CLOCK2) & 0x03f;
+ reg = snd_soc_component_read(component, WM8960_CLOCK2) & 0x03f;
snd_soc_component_write(component, WM8960_CLOCK2, reg | div);
break;
case WM8960_TOCLKSEL:
- reg = snd_soc_component_read32(component, WM8960_ADDCTL1) & 0x1fd;
+ reg = snd_soc_component_read(component, WM8960_ADDCTL1) & 0x1fd;
snd_soc_component_write(component, WM8960_ADDCTL1, reg | div);
break;
default:
@@ -1316,11 +1328,12 @@ static int wm8960_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
static const struct snd_soc_dai_ops wm8960_dai_ops = {
.hw_params = wm8960_hw_params,
.hw_free = wm8960_hw_free,
- .digital_mute = wm8960_mute,
+ .mute_stream = wm8960_mute,
.set_fmt = wm8960_set_dai_fmt,
.set_clkdiv = wm8960_set_dai_clkdiv,
.set_pll = wm8960_set_dai_pll,
.set_sysclk = wm8960_set_dai_sysclk,
+ .no_capture_mute = 1,
};
static struct snd_soc_dai_driver wm8960_dai = {
@@ -1338,7 +1351,7 @@ static struct snd_soc_dai_driver wm8960_dai = {
.rates = WM8960_RATES,
.formats = WM8960_FORMATS,},
.ops = &wm8960_dai_ops,
- .symmetric_rates = 1,
+ .symmetric_rate = 1,
};
static int wm8960_probe(struct snd_soc_component *component)
@@ -1365,7 +1378,6 @@ static const struct snd_soc_component_driver soc_component_dev_wm8960 = {
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,
- .non_legacy_dai_naming = 1,
};
static const struct regmap_config wm8960_regmap = {
@@ -1390,10 +1402,15 @@ static void wm8960_set_pdata_from_of(struct i2c_client *i2c,
if (of_property_read_bool(np, "wlf,shared-lrclk"))
pdata->shared_lrclk = true;
+
+ of_property_read_u32_array(np, "wlf,gpio-cfg", pdata->gpio_cfg,
+ ARRAY_SIZE(pdata->gpio_cfg));
+
+ of_property_read_u32_array(np, "wlf,hp-cfg", pdata->hp_cfg,
+ ARRAY_SIZE(pdata->hp_cfg));
}
-static int wm8960_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int wm8960_i2c_probe(struct i2c_client *i2c)
{
struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
struct wm8960_priv *wm8960;
@@ -1447,6 +1464,20 @@ static int wm8960_i2c_probe(struct i2c_client *i2c,
regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100);
regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100);
+ /* ADCLRC pin configured as GPIO. */
+ regmap_update_bits(wm8960->regmap, WM8960_IFACE2, 1 << 6,
+ wm8960->pdata.gpio_cfg[0] << 6);
+ regmap_update_bits(wm8960->regmap, WM8960_ADDCTL4, 0xF << 4,
+ wm8960->pdata.gpio_cfg[1] << 4);
+
+ /* Enable headphone jack detect */
+ regmap_update_bits(wm8960->regmap, WM8960_ADDCTL4, 3 << 2,
+ wm8960->pdata.hp_cfg[0] << 2);
+ regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2, 3 << 5,
+ wm8960->pdata.hp_cfg[1] << 5);
+ regmap_update_bits(wm8960->regmap, WM8960_ADDCTL1, 3,
+ wm8960->pdata.hp_cfg[2]);
+
i2c_set_clientdata(i2c, wm8960);
ret = devm_snd_soc_register_component(&i2c->dev,
@@ -1455,10 +1486,8 @@ static int wm8960_i2c_probe(struct i2c_client *i2c,
return ret;
}
-static int wm8960_i2c_remove(struct i2c_client *client)
-{
- return 0;
-}
+static void wm8960_i2c_remove(struct i2c_client *client)
+{}
static const struct i2c_device_id wm8960_i2c_id[] = {
{ "wm8960", 0 },
@@ -1466,18 +1495,30 @@ static const struct i2c_device_id wm8960_i2c_id[] = {
};
MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
+#if defined(CONFIG_OF)
static const struct of_device_id wm8960_of_match[] = {
{ .compatible = "wlf,wm8960", },
{ }
};
MODULE_DEVICE_TABLE(of, wm8960_of_match);
+#endif
+
+#if defined(CONFIG_ACPI)
+static const struct acpi_device_id wm8960_acpi_match[] = {
+ { "1AEC8960", 0 }, /* Wolfson PCI ID + part ID */
+ { "10138960", 0 }, /* Cirrus Logic PCI ID + part ID */
+ { },
+};
+MODULE_DEVICE_TABLE(acpi, wm8960_acpi_match);
+#endif
static struct i2c_driver wm8960_i2c_driver = {
.driver = {
.name = "wm8960",
- .of_match_table = wm8960_of_match,
+ .of_match_table = of_match_ptr(wm8960_of_match),
+ .acpi_match_table = ACPI_PTR(wm8960_acpi_match),
},
- .probe = wm8960_i2c_probe,
+ .probe_new = wm8960_i2c_probe,
.remove = wm8960_i2c_remove,
.id_table = wm8960_i2c_id,
};
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.