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Diffstat (limited to 'sound/soc/codecs/arizona.c')
-rw-r--r--sound/soc/codecs/arizona.c497
1 files changed, 428 insertions, 69 deletions
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index e7d34711412c..389f23253831 100644
--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -10,6 +10,7 @@
* published by the Free Software Foundation.
*/
+#include <linux/delay.h>
#include <linux/gcd.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
@@ -65,6 +66,163 @@
#define arizona_aif_dbg(_dai, fmt, ...) \
dev_dbg(_dai->dev, "AIF%d: " fmt, _dai->id, ##__VA_ARGS__)
+static int arizona_spk_ev(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol,
+ int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+ struct arizona *arizona = dev_get_drvdata(codec->dev->parent);
+ struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec);
+ bool manual_ena = false;
+ int val;
+
+ switch (arizona->type) {
+ case WM5102:
+ switch (arizona->rev) {
+ case 0:
+ break;
+ default:
+ manual_ena = true;
+ break;
+ }
+ default:
+ break;
+ }
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ if (!priv->spk_ena && manual_ena) {
+ snd_soc_write(codec, 0x4f5, 0x25a);
+ priv->spk_ena_pending = true;
+ }
+ break;
+ case SND_SOC_DAPM_POST_PMU:
+ val = snd_soc_read(codec, ARIZONA_INTERRUPT_RAW_STATUS_3);
+ if (val & ARIZONA_SPK_SHUTDOWN_STS) {
+ dev_crit(arizona->dev,
+ "Speaker not enabled due to temperature\n");
+ return -EBUSY;
+ }
+
+ snd_soc_update_bits(codec, ARIZONA_OUTPUT_ENABLES_1,
+ 1 << w->shift, 1 << w->shift);
+
+ if (priv->spk_ena_pending) {
+ msleep(75);
+ snd_soc_write(codec, 0x4f5, 0xda);
+ priv->spk_ena_pending = false;
+ priv->spk_ena++;
+ }
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ if (manual_ena) {
+ priv->spk_ena--;
+ if (!priv->spk_ena)
+ snd_soc_write(codec, 0x4f5, 0x25a);
+ }
+
+ snd_soc_update_bits(codec, ARIZONA_OUTPUT_ENABLES_1,
+ 1 << w->shift, 0);
+ break;
+ case SND_SOC_DAPM_POST_PMD:
+ if (manual_ena) {
+ if (!priv->spk_ena)
+ snd_soc_write(codec, 0x4f5, 0x0da);
+ }
+ break;
+ }
+
+ return 0;
+}
+
+static irqreturn_t arizona_thermal_warn(int irq, void *data)
+{
+ struct arizona *arizona = data;
+ unsigned int val;
+ int ret;
+
+ ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_3,
+ &val);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to read thermal status: %d\n",
+ ret);
+ } else if (val & ARIZONA_SPK_SHUTDOWN_WARN_STS) {
+ dev_crit(arizona->dev, "Thermal warning\n");
+ }
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t arizona_thermal_shutdown(int irq, void *data)
+{
+ struct arizona *arizona = data;
+ unsigned int val;
+ int ret;
+
+ ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_3,
+ &val);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to read thermal status: %d\n",
+ ret);
+ } else if (val & ARIZONA_SPK_SHUTDOWN_STS) {
+ dev_crit(arizona->dev, "Thermal shutdown\n");
+ ret = regmap_update_bits(arizona->regmap,
+ ARIZONA_OUTPUT_ENABLES_1,
+ ARIZONA_OUT4L_ENA |
+ ARIZONA_OUT4R_ENA, 0);
+ if (ret != 0)
+ dev_crit(arizona->dev,
+ "Failed to disable speaker outputs: %d\n",
+ ret);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static const struct snd_soc_dapm_widget arizona_spkl =
+ SND_SOC_DAPM_PGA_E("OUT4L", SND_SOC_NOPM,
+ ARIZONA_OUT4L_ENA_SHIFT, 0, NULL, 0, arizona_spk_ev,
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU);
+
+static const struct snd_soc_dapm_widget arizona_spkr =
+ SND_SOC_DAPM_PGA_E("OUT4R", SND_SOC_NOPM,
+ ARIZONA_OUT4R_ENA_SHIFT, 0, NULL, 0, arizona_spk_ev,
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU);
+
+int arizona_init_spk(struct snd_soc_codec *codec)
+{
+ struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec);
+ struct arizona *arizona = priv->arizona;
+ int ret;
+
+ ret = snd_soc_dapm_new_controls(&codec->dapm, &arizona_spkl, 1);
+ if (ret != 0)
+ return ret;
+
+ ret = snd_soc_dapm_new_controls(&codec->dapm, &arizona_spkr, 1);
+ if (ret != 0)
+ return ret;
+
+ ret = arizona_request_irq(arizona, ARIZONA_IRQ_SPK_SHUTDOWN_WARN,
+ "Thermal warning", arizona_thermal_warn,
+ arizona);
+ if (ret != 0)
+ dev_err(arizona->dev,
+ "Failed to get thermal warning IRQ: %d\n",
+ ret);
+
+ ret = arizona_request_irq(arizona, ARIZONA_IRQ_SPK_SHUTDOWN,
+ "Thermal shutdown", arizona_thermal_shutdown,
+ arizona);
+ if (ret != 0)
+ dev_err(arizona->dev,
+ "Failed to get thermal shutdown IRQ: %d\n",
+ ret);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(arizona_init_spk);
+
const char *arizona_mixer_texts[ARIZONA_NUM_MIXER_INPUTS] = {
"None",
"Tone Generator 1",
@@ -274,6 +432,33 @@ EXPORT_SYMBOL_GPL(arizona_mixer_values);
const DECLARE_TLV_DB_SCALE(arizona_mixer_tlv, -3200, 100, 0);
EXPORT_SYMBOL_GPL(arizona_mixer_tlv);
+const char *arizona_rate_text[ARIZONA_RATE_ENUM_SIZE] = {
+ "SYNCCLK rate", "8kHz", "16kHz", "ASYNCCLK rate",
+};
+EXPORT_SYMBOL_GPL(arizona_rate_text);
+
+const int arizona_rate_val[ARIZONA_RATE_ENUM_SIZE] = {
+ 0, 1, 2, 8,
+};
+EXPORT_SYMBOL_GPL(arizona_rate_val);
+
+
+const struct soc_enum arizona_isrc_fsl[] = {
+ SOC_VALUE_ENUM_SINGLE(ARIZONA_ISRC_1_CTRL_2,
+ ARIZONA_ISRC1_FSL_SHIFT, 0xf,
+ ARIZONA_RATE_ENUM_SIZE,
+ arizona_rate_text, arizona_rate_val),
+ SOC_VALUE_ENUM_SINGLE(ARIZONA_ISRC_2_CTRL_2,
+ ARIZONA_ISRC2_FSL_SHIFT, 0xf,
+ ARIZONA_RATE_ENUM_SIZE,
+ arizona_rate_text, arizona_rate_val),
+ SOC_VALUE_ENUM_SINGLE(ARIZONA_ISRC_3_CTRL_2,
+ ARIZONA_ISRC3_FSL_SHIFT, 0xf,
+ ARIZONA_RATE_ENUM_SIZE,
+ arizona_rate_text, arizona_rate_val),
+};
+EXPORT_SYMBOL_GPL(arizona_isrc_fsl);
+
static const char *arizona_vol_ramp_text[] = {
"0ms/6dB", "0.5ms/6dB", "1ms/6dB", "2ms/6dB", "4ms/6dB", "8ms/6dB",
"15ms/6dB", "30ms/6dB",
@@ -332,9 +517,27 @@ const struct soc_enum arizona_ng_hold =
4, arizona_ng_hold_text);
EXPORT_SYMBOL_GPL(arizona_ng_hold);
+static void arizona_in_set_vu(struct snd_soc_codec *codec, int ena)
+{
+ struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec);
+ unsigned int val;
+ int i;
+
+ if (ena)
+ val = ARIZONA_IN_VU;
+ else
+ val = 0;
+
+ for (i = 0; i < priv->num_inputs; i++)
+ snd_soc_update_bits(codec,
+ ARIZONA_ADC_DIGITAL_VOLUME_1L + (i * 4),
+ ARIZONA_IN_VU, val);
+}
+
int arizona_in_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol,
int event)
{
+ struct arizona_priv *priv = snd_soc_codec_get_drvdata(w->codec);
unsigned int reg;
if (w->shift % 2)
@@ -343,13 +546,29 @@ int arizona_in_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol,
reg = ARIZONA_ADC_DIGITAL_VOLUME_1R + ((w->shift / 2) * 8);
switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ priv->in_pending++;
+ break;
case SND_SOC_DAPM_POST_PMU:
snd_soc_update_bits(w->codec, reg, ARIZONA_IN1L_MUTE, 0);
+
+ /* If this is the last input pending then allow VU */
+ priv->in_pending--;
+ if (priv->in_pending == 0) {
+ msleep(1);
+ arizona_in_set_vu(w->codec, 1);
+ }
break;
case SND_SOC_DAPM_PRE_PMD:
- snd_soc_update_bits(w->codec, reg, ARIZONA_IN1L_MUTE,
- ARIZONA_IN1L_MUTE);
+ snd_soc_update_bits(w->codec, reg,
+ ARIZONA_IN1L_MUTE | ARIZONA_IN_VU,
+ ARIZONA_IN1L_MUTE | ARIZONA_IN_VU);
break;
+ case SND_SOC_DAPM_POST_PMD:
+ /* Disable volume updates if no inputs are enabled */
+ reg = snd_soc_read(w->codec, ARIZONA_INPUT_ENABLES);
+ if (reg == 0)
+ arizona_in_set_vu(w->codec, 0);
}
return 0;
@@ -360,6 +579,24 @@ int arizona_out_ev(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ switch (w->shift) {
+ case ARIZONA_OUT1L_ENA_SHIFT:
+ case ARIZONA_OUT1R_ENA_SHIFT:
+ case ARIZONA_OUT2L_ENA_SHIFT:
+ case ARIZONA_OUT2R_ENA_SHIFT:
+ case ARIZONA_OUT3L_ENA_SHIFT:
+ case ARIZONA_OUT3R_ENA_SHIFT:
+ msleep(17);
+ break;
+
+ default:
+ break;
+ }
+ break;
+ }
+
return 0;
}
EXPORT_SYMBOL_GPL(arizona_out_ev);
@@ -502,27 +739,27 @@ int arizona_set_sysclk(struct snd_soc_codec *codec, int clk_id,
break;
case 11289600:
case 12288000:
- val |= 1 << ARIZONA_SYSCLK_FREQ_SHIFT;
+ val |= ARIZONA_CLK_12MHZ << ARIZONA_SYSCLK_FREQ_SHIFT;
break;
case 22579200:
case 24576000:
- val |= 2 << ARIZONA_SYSCLK_FREQ_SHIFT;
+ val |= ARIZONA_CLK_24MHZ << ARIZONA_SYSCLK_FREQ_SHIFT;
break;
case 45158400:
case 49152000:
- val |= 3 << ARIZONA_SYSCLK_FREQ_SHIFT;
+ val |= ARIZONA_CLK_49MHZ << ARIZONA_SYSCLK_FREQ_SHIFT;
break;
case 67737600:
case 73728000:
- val |= 4 << ARIZONA_SYSCLK_FREQ_SHIFT;
+ val |= ARIZONA_CLK_73MHZ << ARIZONA_SYSCLK_FREQ_SHIFT;
break;
case 90316800:
case 98304000:
- val |= 5 << ARIZONA_SYSCLK_FREQ_SHIFT;
+ val |= ARIZONA_CLK_98MHZ << ARIZONA_SYSCLK_FREQ_SHIFT;
break;
case 135475200:
case 147456000:
- val |= 6 << ARIZONA_SYSCLK_FREQ_SHIFT;
+ val |= ARIZONA_CLK_147MHZ << ARIZONA_SYSCLK_FREQ_SHIFT;
break;
case 0:
dev_dbg(arizona->dev, "%s cleared\n", name);
@@ -816,7 +1053,7 @@ static int arizona_hw_params(struct snd_pcm_substream *substream,
struct arizona *arizona = priv->arizona;
int base = dai->driver->base;
const int *rates;
- int i, ret;
+ int i, ret, val;
int chan_limit = arizona->pdata.max_channels_clocked[dai->id - 1];
int bclk, lrclk, wl, frame, bclk_target;
@@ -832,6 +1069,13 @@ static int arizona_hw_params(struct snd_pcm_substream *substream,
bclk_target *= chan_limit;
}
+ /* Force stereo for I2S mode */
+ val = snd_soc_read(codec, base + ARIZONA_AIF_FORMAT);
+ if (params_channels(params) == 1 && (val & ARIZONA_AIF1_FMT_MASK)) {
+ arizona_aif_dbg(dai, "Forcing stereo mode\n");
+ bclk_target *= 2;
+ }
+
for (i = 0; i < ARRAY_SIZE(arizona_44k1_bclk_rates); i++) {
if (rates[i] >= bclk_target &&
rates[i] % params_rate(params) == 0) {
@@ -988,6 +1232,16 @@ static struct {
{ 1000000, 13500000, 0, 1 },
};
+static struct {
+ unsigned int min;
+ unsigned int max;
+ u16 gain;
+} fll_gains[] = {
+ { 0, 256000, 0 },
+ { 256000, 1000000, 2 },
+ { 1000000, 13500000, 4 },
+};
+
struct arizona_fll_cfg {
int n;
int theta;
@@ -995,6 +1249,7 @@ struct arizona_fll_cfg {
int refdiv;
int outdiv;
int fratio;
+ int gain;
};
static int arizona_calc_fll(struct arizona_fll *fll,
@@ -1054,6 +1309,18 @@ static int arizona_calc_fll(struct arizona_fll *fll,
return -EINVAL;
}
+ for (i = 0; i < ARRAY_SIZE(fll_gains); i++) {
+ if (fll_gains[i].min <= Fref && Fref <= fll_gains[i].max) {
+ cfg->gain = fll_gains[i].gain;
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(fll_gains)) {
+ arizona_fll_err(fll, "Unable to find gain for Fref=%uHz\n",
+ Fref);
+ return -EINVAL;
+ }
+
cfg->n = target / (ratio * Fref);
if (target % (ratio * Fref)) {
@@ -1081,13 +1348,15 @@ static int arizona_calc_fll(struct arizona_fll *fll,
cfg->n, cfg->theta, cfg->lambda);
arizona_fll_dbg(fll, "FRATIO=%x(%d) OUTDIV=%x REFCLK_DIV=%x\n",
cfg->fratio, cfg->fratio, cfg->outdiv, cfg->refdiv);
+ arizona_fll_dbg(fll, "GAIN=%d\n", cfg->gain);
return 0;
}
static void arizona_apply_fll(struct arizona *arizona, unsigned int base,
- struct arizona_fll_cfg *cfg, int source)
+ struct arizona_fll_cfg *cfg, int source,
+ bool sync)
{
regmap_update_bits(arizona->regmap, base + 3,
ARIZONA_FLL1_THETA_MASK, cfg->theta);
@@ -1102,87 +1371,84 @@ static void arizona_apply_fll(struct arizona *arizona, unsigned int base,
cfg->refdiv << ARIZONA_FLL1_CLK_REF_DIV_SHIFT |
source << ARIZONA_FLL1_CLK_REF_SRC_SHIFT);
+ if (sync)
+ regmap_update_bits(arizona->regmap, base + 0x7,
+ ARIZONA_FLL1_GAIN_MASK,
+ cfg->gain << ARIZONA_FLL1_GAIN_SHIFT);
+ else
+ regmap_update_bits(arizona->regmap, base + 0x9,
+ ARIZONA_FLL1_GAIN_MASK,
+ cfg->gain << ARIZONA_FLL1_GAIN_SHIFT);
+
regmap_update_bits(arizona->regmap, base + 2,
ARIZONA_FLL1_CTRL_UPD | ARIZONA_FLL1_N_MASK,
ARIZONA_FLL1_CTRL_UPD | cfg->n);
}
-int arizona_set_fll(struct arizona_fll *fll, int source,
- unsigned int Fref, unsigned int Fout)
+static bool arizona_is_enabled_fll(struct arizona_fll *fll)
{
struct arizona *arizona = fll->arizona;
- struct arizona_fll_cfg cfg, sync;
- unsigned int reg, val;
- int syncsrc;
- bool ena;
+ unsigned int reg;
int ret;
- if (fll->fref == Fref && fll->fout == Fout)
- return 0;
-
ret = regmap_read(arizona->regmap, fll->base + 1, &reg);
if (ret != 0) {
arizona_fll_err(fll, "Failed to read current state: %d\n",
ret);
return ret;
}
- ena = reg & ARIZONA_FLL1_ENA;
- if (Fout) {
- /* Do we have a 32kHz reference? */
- regmap_read(arizona->regmap, ARIZONA_CLOCK_32K_1, &val);
- switch (val & ARIZONA_CLK_32K_SRC_MASK) {
- case ARIZONA_CLK_SRC_MCLK1:
- case ARIZONA_CLK_SRC_MCLK2:
- syncsrc = val & ARIZONA_CLK_32K_SRC_MASK;
- break;
- default:
- syncsrc = -1;
- }
+ return reg & ARIZONA_FLL1_ENA;
+}
- if (source == syncsrc)
- syncsrc = -1;
+static void arizona_enable_fll(struct arizona_fll *fll,
+ struct arizona_fll_cfg *ref,
+ struct arizona_fll_cfg *sync)
+{
+ struct arizona *arizona = fll->arizona;
+ int ret;
- if (syncsrc >= 0) {
- ret = arizona_calc_fll(fll, &sync, Fref, Fout);
- if (ret != 0)
- return ret;
+ /*
+ * If we have both REFCLK and SYNCCLK then enable both,
+ * otherwise apply the SYNCCLK settings to REFCLK.
+ */
+ if (fll->ref_src >= 0 && fll->ref_src != fll->sync_src) {
+ regmap_update_bits(arizona->regmap, fll->base + 5,
+ ARIZONA_FLL1_OUTDIV_MASK,
+ ref->outdiv << ARIZONA_FLL1_OUTDIV_SHIFT);
+
+ arizona_apply_fll(arizona, fll->base, ref, fll->ref_src,
+ false);
+ if (fll->sync_src >= 0)
+ arizona_apply_fll(arizona, fll->base + 0x10, sync,
+ fll->sync_src, true);
+ } else if (fll->sync_src >= 0) {
+ regmap_update_bits(arizona->regmap, fll->base + 5,
+ ARIZONA_FLL1_OUTDIV_MASK,
+ sync->outdiv << ARIZONA_FLL1_OUTDIV_SHIFT);
+
+ arizona_apply_fll(arizona, fll->base, sync,
+ fll->sync_src, false);
- ret = arizona_calc_fll(fll, &cfg, 32768, Fout);
- if (ret != 0)
- return ret;
- } else {
- ret = arizona_calc_fll(fll, &cfg, Fref, Fout);
- if (ret != 0)
- return ret;
- }
- } else {
- regmap_update_bits(arizona->regmap, fll->base + 1,
- ARIZONA_FLL1_ENA, 0);
regmap_update_bits(arizona->regmap, fll->base + 0x11,
ARIZONA_FLL1_SYNC_ENA, 0);
-
- if (ena)
- pm_runtime_put_autosuspend(arizona->dev);
-
- fll->fref = Fref;
- fll->fout = Fout;
-
- return 0;
- }
-
- regmap_update_bits(arizona->regmap, fll->base + 5,
- ARIZONA_FLL1_OUTDIV_MASK,
- cfg.outdiv << ARIZONA_FLL1_OUTDIV_SHIFT);
-
- if (syncsrc >= 0) {
- arizona_apply_fll(arizona, fll->base, &cfg, syncsrc);
- arizona_apply_fll(arizona, fll->base + 0x10, &sync, source);
} else {
- arizona_apply_fll(arizona, fll->base, &cfg, source);
+ arizona_fll_err(fll, "No clocks provided\n");
+ return;
}
- if (!ena)
+ /*
+ * Increase the bandwidth if we're not using a low frequency
+ * sync source.
+ */
+ if (fll->sync_src >= 0 && fll->sync_freq > 100000)
+ regmap_update_bits(arizona->regmap, fll->base + 0x17,
+ ARIZONA_FLL1_SYNC_BW, 0);
+ else
+ regmap_update_bits(arizona->regmap, fll->base + 0x17,
+ ARIZONA_FLL1_SYNC_BW, ARIZONA_FLL1_SYNC_BW);
+
+ if (!arizona_is_enabled_fll(fll))
pm_runtime_get(arizona->dev);
/* Clear any pending completions */
@@ -1190,7 +1456,8 @@ int arizona_set_fll(struct arizona_fll *fll, int source,
regmap_update_bits(arizona->regmap, fll->base + 1,
ARIZONA_FLL1_ENA, ARIZONA_FLL1_ENA);
- if (syncsrc >= 0)
+ if (fll->ref_src >= 0 && fll->sync_src >= 0 &&
+ fll->ref_src != fll->sync_src)
regmap_update_bits(arizona->regmap, fll->base + 0x11,
ARIZONA_FLL1_SYNC_ENA,
ARIZONA_FLL1_SYNC_ENA);
@@ -1199,10 +1466,88 @@ int arizona_set_fll(struct arizona_fll *fll, int source,
msecs_to_jiffies(250));
if (ret == 0)
arizona_fll_warn(fll, "Timed out waiting for lock\n");
+}
+
+static void arizona_disable_fll(struct arizona_fll *fll)
+{
+ struct arizona *arizona = fll->arizona;
+ bool change;
+
+ regmap_update_bits_check(arizona->regmap, fll->base + 1,
+ ARIZONA_FLL1_ENA, 0, &change);
+ regmap_update_bits(arizona->regmap, fll->base + 0x11,
+ ARIZONA_FLL1_SYNC_ENA, 0);
+
+ if (change)
+ pm_runtime_put_autosuspend(arizona->dev);
+}
+
+int arizona_set_fll_refclk(struct arizona_fll *fll, int source,
+ unsigned int Fref, unsigned int Fout)
+{
+ struct arizona_fll_cfg ref, sync;
+ int ret;
- fll->fref = Fref;
+ if (fll->ref_src == source && fll->ref_freq == Fref)
+ return 0;
+
+ if (fll->fout && Fref > 0) {
+ ret = arizona_calc_fll(fll, &ref, Fref, fll->fout);
+ if (ret != 0)
+ return ret;
+
+ if (fll->sync_src >= 0) {
+ ret = arizona_calc_fll(fll, &sync, fll->sync_freq,
+ fll->fout);
+ if (ret != 0)
+ return ret;
+ }
+ }
+
+ fll->ref_src = source;
+ fll->ref_freq = Fref;
+
+ if (fll->fout && Fref > 0) {
+ arizona_enable_fll(fll, &ref, &sync);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(arizona_set_fll_refclk);
+
+int arizona_set_fll(struct arizona_fll *fll, int source,
+ unsigned int Fref, unsigned int Fout)
+{
+ struct arizona_fll_cfg ref, sync;
+ int ret;
+
+ if (fll->sync_src == source &&
+ fll->sync_freq == Fref && fll->fout == Fout)
+ return 0;
+
+ if (Fout) {
+ if (fll->ref_src >= 0) {
+ ret = arizona_calc_fll(fll, &ref, fll->ref_freq,
+ Fout);
+ if (ret != 0)
+ return ret;
+ }
+
+ ret = arizona_calc_fll(fll, &sync, Fref, Fout);
+ if (ret != 0)
+ return ret;
+ }
+
+ fll->sync_src = source;
+ fll->sync_freq = Fref;
fll->fout = Fout;
+ if (Fout) {
+ arizona_enable_fll(fll, &ref, &sync);
+ } else {
+ arizona_disable_fll(fll);
+ }
+
return 0;
}
EXPORT_SYMBOL_GPL(arizona_set_fll);
@@ -1211,12 +1556,26 @@ int arizona_init_fll(struct arizona *arizona, int id, int base, int lock_irq,
int ok_irq, struct arizona_fll *fll)
{
int ret;
+ unsigned int val;
init_completion(&fll->ok);
fll->id = id;
fll->base = base;
fll->arizona = arizona;
+ fll->sync_src = ARIZONA_FLL_SRC_NONE;
+
+ /* Configure default refclk to 32kHz if we have one */
+ regmap_read(arizona->regmap, ARIZONA_CLOCK_32K_1, &val);
+ switch (val & ARIZONA_CLK_32K_SRC_MASK) {
+ case ARIZONA_CLK_SRC_MCLK1:
+ case ARIZONA_CLK_SRC_MCLK2:
+ fll->ref_src = val & ARIZONA_CLK_32K_SRC_MASK;
+ break;
+ default:
+ fll->ref_src = ARIZONA_FLL_SRC_NONE;
+ }
+ fll->ref_freq = 32768;
snprintf(fll->lock_name, sizeof(fll->lock_name), "FLL%d lock", id);
snprintf(fll->clock_ok_name, sizeof(fll->clock_ok_name),