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-rw-r--r--Documentation/devicetree/bindings/sound/wm8962.txt23
-rw-r--r--sound/soc/codecs/wm8962.c112
2 files changed, 105 insertions, 30 deletions
diff --git a/Documentation/devicetree/bindings/sound/wm8962.txt b/Documentation/devicetree/bindings/sound/wm8962.txt
index dceb3b1c2bb..7f82b59ec8f 100644
--- a/Documentation/devicetree/bindings/sound/wm8962.txt
+++ b/Documentation/devicetree/bindings/sound/wm8962.txt
@@ -8,9 +8,32 @@ Required properties:
- reg : the I2C address of the device.
+Optional properties:
+ - spk-mono: This is a boolean property. If present, the SPK_MONO bit
+ of R51 (Class D Control 2) gets set, indicating that the speaker is
+ in mono mode.
+
+ - mic-cfg : Default register value for R48 (Additional Control 4).
+ If absent, the default should be the register default.
+
+ - gpio-cfg : A list of GPIO configuration register values. The list must
+ be 6 entries long. If absent, no configuration of these registers is
+ performed. And note that only the value within [0x0, 0xffff] is valid.
+ Any other value is regarded as setting the GPIO register by its reset
+ value 0x0.
+
Example:
codec: wm8962@1a {
compatible = "wlf,wm8962";
reg = <0x1a>;
+
+ gpio-cfg = <
+ 0x0000 /* 0:Default */
+ 0x0000 /* 1:Default */
+ 0x0013 /* 2:FN_DMICCLK */
+ 0x0000 /* 3:Default */
+ 0x8014 /* 4:FN_DMICCDAT */
+ 0x0000 /* 5:Default */
+ >;
};
diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 4b7915bec2f..b1dc7d42643 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -51,6 +51,7 @@ static const char *wm8962_supply_names[WM8962_NUM_SUPPLIES] = {
/* codec private data */
struct wm8962_priv {
+ struct wm8962_pdata pdata;
struct regmap *regmap;
struct snd_soc_codec *codec;
@@ -2347,12 +2348,13 @@ static const struct snd_soc_dapm_route wm8962_spk_stereo_intercon[] = {
static int wm8962_add_widgets(struct snd_soc_codec *codec)
{
- struct wm8962_pdata *pdata = dev_get_platdata(codec->dev);
+ struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
+ struct wm8962_pdata *pdata = &wm8962->pdata;
struct snd_soc_dapm_context *dapm = &codec->dapm;
snd_soc_add_codec_controls(codec, wm8962_snd_controls,
ARRAY_SIZE(wm8962_snd_controls));
- if (pdata && pdata->spk_mono)
+ if (pdata->spk_mono)
snd_soc_add_codec_controls(codec, wm8962_spk_mono_controls,
ARRAY_SIZE(wm8962_spk_mono_controls));
else
@@ -2362,7 +2364,7 @@ static int wm8962_add_widgets(struct snd_soc_codec *codec)
snd_soc_dapm_new_controls(dapm, wm8962_dapm_widgets,
ARRAY_SIZE(wm8962_dapm_widgets));
- if (pdata && pdata->spk_mono)
+ if (pdata->spk_mono)
snd_soc_dapm_new_controls(dapm, wm8962_dapm_spk_mono_widgets,
ARRAY_SIZE(wm8962_dapm_spk_mono_widgets));
else
@@ -2371,7 +2373,7 @@ static int wm8962_add_widgets(struct snd_soc_codec *codec)
snd_soc_dapm_add_routes(dapm, wm8962_intercon,
ARRAY_SIZE(wm8962_intercon));
- if (pdata && pdata->spk_mono)
+ if (pdata->spk_mono)
snd_soc_dapm_add_routes(dapm, wm8962_spk_mono_intercon,
ARRAY_SIZE(wm8962_spk_mono_intercon));
else
@@ -3335,14 +3337,14 @@ static struct gpio_chip wm8962_template_chip = {
static void wm8962_init_gpio(struct snd_soc_codec *codec)
{
struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
- struct wm8962_pdata *pdata = dev_get_platdata(codec->dev);
+ struct wm8962_pdata *pdata = &wm8962->pdata;
int ret;
wm8962->gpio_chip = wm8962_template_chip;
wm8962->gpio_chip.ngpio = WM8962_MAX_GPIO;
wm8962->gpio_chip.dev = codec->dev;
- if (pdata && pdata->gpio_base)
+ if (pdata->gpio_base)
wm8962->gpio_chip.base = pdata->gpio_base;
else
wm8962->gpio_chip.base = -1;
@@ -3422,31 +3424,29 @@ static int wm8962_probe(struct snd_soc_codec *codec)
WM8962_OSC_ENA | WM8962_PLL2_ENA | WM8962_PLL3_ENA,
0);
- if (pdata) {
- /* Apply static configuration for GPIOs */
- for (i = 0; i < ARRAY_SIZE(pdata->gpio_init); i++)
- if (pdata->gpio_init[i]) {
- wm8962_set_gpio_mode(codec, i + 1);
- snd_soc_write(codec, 0x200 + i,
- pdata->gpio_init[i] & 0xffff);
- }
+ /* Apply static configuration for GPIOs */
+ for (i = 0; i < ARRAY_SIZE(pdata->gpio_init); i++)
+ if (pdata->gpio_init[i]) {
+ wm8962_set_gpio_mode(codec, i + 1);
+ snd_soc_write(codec, 0x200 + i,
+ pdata->gpio_init[i] & 0xffff);
+ }
- /* Put the speakers into mono mode? */
- if (pdata->spk_mono)
- snd_soc_update_bits(codec, WM8962_CLASS_D_CONTROL_2,
+
+ /* Put the speakers into mono mode? */
+ if (pdata->spk_mono)
+ snd_soc_update_bits(codec, WM8962_CLASS_D_CONTROL_2,
WM8962_SPK_MONO_MASK, WM8962_SPK_MONO);
-
- /* Micbias setup, detection enable and detection
- * threasholds. */
- if (pdata->mic_cfg)
- snd_soc_update_bits(codec, WM8962_ADDITIONAL_CONTROL_4,
- WM8962_MICDET_ENA |
- WM8962_MICDET_THR_MASK |
- WM8962_MICSHORT_THR_MASK |
- WM8962_MICBIAS_LVL,
- pdata->mic_cfg);
- }
+ /* Micbias setup, detection enable and detection
+ * threasholds. */
+ if (pdata->mic_cfg)
+ snd_soc_update_bits(codec, WM8962_ADDITIONAL_CONTROL_4,
+ WM8962_MICDET_ENA |
+ WM8962_MICDET_THR_MASK |
+ WM8962_MICSHORT_THR_MASK |
+ WM8962_MICBIAS_LVL,
+ pdata->mic_cfg);
/* Latch volume update bits */
snd_soc_update_bits(codec, WM8962_LEFT_INPUT_VOLUME,
@@ -3508,7 +3508,7 @@ static int wm8962_probe(struct snd_soc_codec *codec)
wm8962_init_gpio(codec);
if (wm8962->irq) {
- if (pdata && pdata->irq_active_low) {
+ if (pdata->irq_active_low) {
trigger = IRQF_TRIGGER_LOW;
irq_pol = WM8962_IRQ_POL;
} else {
@@ -3586,6 +3586,34 @@ static const struct regmap_config wm8962_regmap = {
.cache_type = REGCACHE_RBTREE,
};
+static int wm8962_set_pdata_from_of(struct i2c_client *i2c,
+ struct wm8962_pdata *pdata)
+{
+ const struct device_node *np = i2c->dev.of_node;
+ u32 val32;
+ int i;
+
+ if (of_property_read_bool(np, "spk-mono"))
+ pdata->spk_mono = true;
+
+ if (of_property_read_u32(np, "mic-cfg", &val32) >= 0)
+ pdata->mic_cfg = val32;
+
+ if (of_property_read_u32_array(np, "gpio-cfg", pdata->gpio_init,
+ ARRAY_SIZE(pdata->gpio_init)) >= 0)
+ for (i = 0; i < ARRAY_SIZE(pdata->gpio_init); i++) {
+ /*
+ * The range of GPIO register value is [0x0, 0xffff]
+ * While the default value of each register is 0x0
+ * Any other value will be regarded as default value
+ */
+ if (pdata->gpio_init[i] > 0xffff)
+ pdata->gpio_init[i] = 0x0;
+ }
+
+ return 0;
+}
+
static int wm8962_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
@@ -3605,6 +3633,15 @@ static int wm8962_i2c_probe(struct i2c_client *i2c,
init_completion(&wm8962->fll_lock);
wm8962->irq = i2c->irq;
+ /* If platform data was supplied, update the default data in priv */
+ if (pdata) {
+ memcpy(&wm8962->pdata, pdata, sizeof(struct wm8962_pdata));
+ } else if (i2c->dev.of_node) {
+ ret = wm8962_set_pdata_from_of(i2c, &wm8962->pdata);
+ if (ret != 0)
+ return ret;
+ }
+
for (i = 0; i < ARRAY_SIZE(wm8962->supplies); i++)
wm8962->supplies[i].supply = wm8962_supply_names[i];
@@ -3668,7 +3705,7 @@ static int wm8962_i2c_probe(struct i2c_client *i2c,
goto err_enable;
}
- if (pdata && pdata->in4_dc_measure) {
+ if (wm8962->pdata.in4_dc_measure) {
ret = regmap_register_patch(wm8962->regmap,
wm8962_dc_measure,
ARRAY_SIZE(wm8962_dc_measure));
@@ -3721,6 +3758,21 @@ static int wm8962_runtime_resume(struct device *dev)
wm8962_reset(wm8962);
+ /* SYSCLK defaults to on; make sure it is off so we can safely
+ * write to registers if the device is declocked.
+ */
+ regmap_update_bits(wm8962->regmap, WM8962_CLOCKING2,
+ WM8962_SYSCLK_ENA, 0);
+
+ /* Ensure we have soft control over all registers */
+ regmap_update_bits(wm8962->regmap, WM8962_CLOCKING2,
+ WM8962_CLKREG_OVD, WM8962_CLKREG_OVD);
+
+ /* Ensure that the oscillator and PLLs are disabled */
+ regmap_update_bits(wm8962->regmap, WM8962_PLL2,
+ WM8962_OSC_ENA | WM8962_PLL2_ENA | WM8962_PLL3_ENA,
+ 0);
+
regcache_sync(wm8962->regmap);
regmap_update_bits(wm8962->regmap, WM8962_ANTI_POP,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-10-30 11:28:52 +0000