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Diffstat (limited to 'sound/soc/codecs/wm8915.c')
-rw-r--r--sound/soc/codecs/wm8915.c156
1 files changed, 110 insertions, 46 deletions
diff --git a/sound/soc/codecs/wm8915.c b/sound/soc/codecs/wm8915.c
index e2ab4fac2819..423baa9be241 100644
--- a/sound/soc/codecs/wm8915.c
+++ b/sound/soc/codecs/wm8915.c
@@ -41,14 +41,12 @@
#define HPOUT2L 4
#define HPOUT2R 8
-#define WM8915_NUM_SUPPLIES 6
+#define WM8915_NUM_SUPPLIES 4
static const char *wm8915_supply_names[WM8915_NUM_SUPPLIES] = {
- "DCVDD",
"DBVDD",
"AVDD1",
"AVDD2",
"CPVDD",
- "MICVDD",
};
struct wm8915_priv {
@@ -57,6 +55,7 @@ struct wm8915_priv {
int ldo1ena;
int sysclk;
+ int sysclk_src;
int fll_src;
int fll_fref;
@@ -76,6 +75,7 @@ struct wm8915_priv {
struct wm8915_pdata pdata;
int rx_rate[WM8915_AIFS];
+ int bclk_rate[WM8915_AIFS];
/* Platform dependant ReTune mobile configuration */
int num_retune_mobile_texts;
@@ -113,8 +113,6 @@ WM8915_REGULATOR_EVENT(0)
WM8915_REGULATOR_EVENT(1)
WM8915_REGULATOR_EVENT(2)
WM8915_REGULATOR_EVENT(3)
-WM8915_REGULATOR_EVENT(4)
-WM8915_REGULATOR_EVENT(5)
static const u16 wm8915_reg[WM8915_MAX_REGISTER] = {
[WM8915_SOFTWARE_RESET] = 0x8915,
@@ -1565,6 +1563,50 @@ static int wm8915_reset(struct snd_soc_codec *codec)
return snd_soc_write(codec, WM8915_SOFTWARE_RESET, 0x8915);
}
+static const int bclk_divs[] = {
+ 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96
+};
+
+static void wm8915_update_bclk(struct snd_soc_codec *codec)
+{
+ struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
+ int aif, best, cur_val, bclk_rate, bclk_reg, i;
+
+ /* Don't bother if we're in a low frequency idle mode that
+ * can't support audio.
+ */
+ if (wm8915->sysclk < 64000)
+ return;
+
+ for (aif = 0; aif < WM8915_AIFS; aif++) {
+ switch (aif) {
+ case 0:
+ bclk_reg = WM8915_AIF1_BCLK;
+ break;
+ case 1:
+ bclk_reg = WM8915_AIF2_BCLK;
+ break;
+ }
+
+ bclk_rate = wm8915->bclk_rate[aif];
+
+ /* Pick a divisor for BCLK as close as we can get to ideal */
+ best = 0;
+ for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
+ cur_val = (wm8915->sysclk / bclk_divs[i]) - bclk_rate;
+ if (cur_val < 0) /* BCLK table is sorted */
+ break;
+ best = i;
+ }
+ bclk_rate = wm8915->sysclk / bclk_divs[best];
+ dev_dbg(codec->dev, "Using BCLK_DIV %d for actual BCLK %dHz\n",
+ bclk_divs[best], bclk_rate);
+
+ snd_soc_update_bits(codec, bclk_reg,
+ WM8915_AIF1_BCLK_DIV_MASK, best);
+ }
+}
+
static int wm8915_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
@@ -1717,10 +1759,6 @@ static int wm8915_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
return 0;
}
-static const int bclk_divs[] = {
- 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96
-};
-
static const int dsp_divs[] = {
48000, 32000, 16000, 8000
};
@@ -1731,17 +1769,11 @@ static int wm8915_hw_params(struct snd_pcm_substream *substream,
{
struct snd_soc_codec *codec = dai->codec;
struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
- int bits, i, bclk_rate, best, cur_val;
+ int bits, i, bclk_rate;
int aifdata = 0;
- int bclk = 0;
int lrclk = 0;
int dsp = 0;
- int aifdata_reg, bclk_reg, lrclk_reg, dsp_shift;
-
- if (!wm8915->sysclk) {
- dev_err(codec->dev, "SYSCLK not configured\n");
- return -EINVAL;
- }
+ int aifdata_reg, lrclk_reg, dsp_shift;
switch (dai->id) {
case 0:
@@ -1753,7 +1785,6 @@ static int wm8915_hw_params(struct snd_pcm_substream *substream,
aifdata_reg = WM8915_AIF1TX_DATA_CONFIGURATION_1;
lrclk_reg = WM8915_AIF1_TX_LRCLK_1;
}
- bclk_reg = WM8915_AIF1_BCLK;
dsp_shift = 0;
break;
case 1:
@@ -1765,7 +1796,6 @@ static int wm8915_hw_params(struct snd_pcm_substream *substream,
aifdata_reg = WM8915_AIF2TX_DATA_CONFIGURATION_1;
lrclk_reg = WM8915_AIF2_TX_LRCLK_1;
}
- bclk_reg = WM8915_AIF2_BCLK;
dsp_shift = WM8915_DSP2_DIV_SHIFT;
break;
default:
@@ -1779,6 +1809,9 @@ static int wm8915_hw_params(struct snd_pcm_substream *substream,
return bclk_rate;
}
+ wm8915->bclk_rate[dai->id] = bclk_rate;
+ wm8915->rx_rate[dai->id] = params_rate(params);
+
/* Needs looking at for TDM */
bits = snd_pcm_format_width(params_format(params));
if (bits < 0)
@@ -1796,18 +1829,7 @@ static int wm8915_hw_params(struct snd_pcm_substream *substream,
}
dsp |= i << dsp_shift;
- /* Pick a divisor for BCLK as close as we can get to ideal */
- best = 0;
- for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
- cur_val = (wm8915->sysclk / bclk_divs[i]) - bclk_rate;
- if (cur_val < 0) /* BCLK table is sorted */
- break;
- best = i;
- }
- bclk_rate = wm8915->sysclk / bclk_divs[best];
- dev_dbg(dai->dev, "Using BCLK_DIV %d for actual BCLK %dHz\n",
- bclk_divs[best], bclk_rate);
- bclk |= best;
+ wm8915_update_bclk(codec);
lrclk = bclk_rate / params_rate(params);
dev_dbg(dai->dev, "Using LRCLK rate %d for actual LRCLK %dHz\n",
@@ -1817,14 +1839,11 @@ static int wm8915_hw_params(struct snd_pcm_substream *substream,
WM8915_AIF1TX_WL_MASK |
WM8915_AIF1TX_SLOT_LEN_MASK,
aifdata);
- snd_soc_update_bits(codec, bclk_reg, WM8915_AIF1_BCLK_DIV_MASK, bclk);
snd_soc_update_bits(codec, lrclk_reg, WM8915_AIF1RX_RATE_MASK,
lrclk);
snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_2,
WM8915_DSP1_DIV_SHIFT << dsp_shift, dsp);
- wm8915->rx_rate[dai->id] = params_rate(params);
-
return 0;
}
@@ -1838,6 +1857,9 @@ static int wm8915_set_sysclk(struct snd_soc_dai *dai,
int src;
int old;
+ if (freq == wm8915->sysclk && clk_id == wm8915->sysclk_src)
+ return 0;
+
/* Disable SYSCLK while we reconfigure */
old = snd_soc_read(codec, WM8915_AIF_CLOCKING_1) & WM8915_SYSCLK_ENA;
snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_1,
@@ -1882,6 +1904,8 @@ static int wm8915_set_sysclk(struct snd_soc_dai *dai,
return -EINVAL;
}
+ wm8915_update_bclk(codec);
+
snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_1,
WM8915_SYSCLK_SRC_MASK | WM8915_SYSCLK_DIV_MASK,
src << WM8915_SYSCLK_SRC_SHIFT | ratediv);
@@ -1889,6 +1913,8 @@ static int wm8915_set_sysclk(struct snd_soc_dai *dai,
snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_1,
WM8915_SYSCLK_ENA, old);
+ wm8915->sysclk_src = clk_id;
+
return 0;
}
@@ -2007,6 +2033,7 @@ static int wm8915_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
unsigned int Fref, unsigned int Fout)
{
struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
+ struct i2c_client *i2c = to_i2c_client(codec->dev);
struct _fll_div fll_div;
unsigned long timeout;
int ret, reg;
@@ -2093,7 +2120,18 @@ static int wm8915_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
else
timeout = msecs_to_jiffies(2);
- wait_for_completion_timeout(&wm8915->fll_lock, timeout);
+ /* Allow substantially longer if we've actually got the IRQ */
+ if (i2c->irq)
+ timeout *= 1000;
+
+ ret = wait_for_completion_timeout(&wm8915->fll_lock, timeout);
+
+ if (ret == 0 && i2c->irq) {
+ dev_err(codec->dev, "Timed out waiting for FLL\n");
+ ret = -ETIMEDOUT;
+ } else {
+ ret = 0;
+ }
dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout);
@@ -2101,7 +2139,7 @@ static int wm8915_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
wm8915->fll_fout = Fout;
wm8915->fll_src = source;
- return 0;
+ return ret;
}
#ifdef CONFIG_GPIOLIB
@@ -2293,6 +2331,12 @@ static void wm8915_micd(struct snd_soc_codec *codec)
SND_JACK_HEADSET | SND_JACK_BTN_0);
wm8915->jack_mic = true;
wm8915->detecting = false;
+
+ /* Increase poll rate to give better responsiveness
+ * for buttons */
+ snd_soc_update_bits(codec, WM8915_MIC_DETECT_1,
+ WM8915_MICD_RATE_MASK,
+ 5 << WM8915_MICD_RATE_SHIFT);
}
/* If we detected a lower impedence during initial startup
@@ -2333,15 +2377,17 @@ static void wm8915_micd(struct snd_soc_codec *codec)
SND_JACK_HEADPHONE,
SND_JACK_HEADSET |
SND_JACK_BTN_0);
+
+ /* Increase the detection rate a bit for
+ * responsiveness.
+ */
+ snd_soc_update_bits(codec, WM8915_MIC_DETECT_1,
+ WM8915_MICD_RATE_MASK,
+ 7 << WM8915_MICD_RATE_SHIFT);
+
wm8915->detecting = false;
}
}
-
- /* Increase poll rate to give better responsiveness for buttons */
- if (!wm8915->detecting)
- snd_soc_update_bits(codec, WM8915_MIC_DETECT_1,
- WM8915_MICD_RATE_MASK,
- 5 << WM8915_MICD_RATE_SHIFT);
}
static irqreturn_t wm8915_irq(int irq, void *data)
@@ -2383,6 +2429,20 @@ static irqreturn_t wm8915_irq(int irq, void *data)
}
}
+static irqreturn_t wm8915_edge_irq(int irq, void *data)
+{
+ irqreturn_t ret = IRQ_NONE;
+ irqreturn_t val;
+
+ do {
+ val = wm8915_irq(irq, data);
+ if (val != IRQ_NONE)
+ ret = val;
+ } while (val != IRQ_NONE);
+
+ return ret;
+}
+
static void wm8915_retune_mobile_pdata(struct snd_soc_codec *codec)
{
struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
@@ -2482,8 +2542,6 @@ static int wm8915_probe(struct snd_soc_codec *codec)
wm8915->disable_nb[1].notifier_call = wm8915_regulator_event_1;
wm8915->disable_nb[2].notifier_call = wm8915_regulator_event_2;
wm8915->disable_nb[3].notifier_call = wm8915_regulator_event_3;
- wm8915->disable_nb[4].notifier_call = wm8915_regulator_event_4;
- wm8915->disable_nb[5].notifier_call = wm8915_regulator_event_5;
/* This should really be moved into the regulator core */
for (i = 0; i < ARRAY_SIZE(wm8915->supplies); i++) {
@@ -2709,8 +2767,14 @@ static int wm8915_probe(struct snd_soc_codec *codec)
irq_flags |= IRQF_ONESHOT;
- ret = request_threaded_irq(i2c->irq, NULL, wm8915_irq,
- irq_flags, "wm8915", codec);
+ if (irq_flags & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING))
+ ret = request_threaded_irq(i2c->irq, NULL,
+ wm8915_edge_irq,
+ irq_flags, "wm8915", codec);
+ else
+ ret = request_threaded_irq(i2c->irq, NULL, wm8915_irq,
+ irq_flags, "wm8915", codec);
+
if (ret == 0) {
/* Unmask the interrupt */
snd_soc_update_bits(codec, WM8915_INTERRUPT_CONTROL,
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-05 05:40:53 +0000