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ASoC: da7219: Add recalc_rate function to return DAI clock rate

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By making MCLK parent of DAI clocks, when querying the rate of the
clock the rate returned is now given from the parent clock so
gives the MCLK rate rather than 0 as previously returned. This is
a bit misleading, and actually there's no major reason why we can't
at least return the DAI WCLK rate, as set in HW, so that's what we
now do.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Adam Thomson 2019-01-08 09:13:28 +00:00 committed by Mark Brown
parent a6028cc60a
commit a58943abcb
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 43 additions and 3 deletions
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45
sound/soc/codecs/da7219.c
View File

@ -1767,7 +1767,7 @@ static int da7219_dai_clks_prepare(struct clk_hw *hw)
{
struct da7219_priv *da7219 =
container_of(hw, struct da7219_priv, dai_clks_hw);
struct snd_soc_component *component = da7219->aad->component;
struct snd_soc_component *component = da7219->component;
snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
DA7219_DAI_CLK_EN_MASK,
@ -1780,7 +1780,7 @@ static void da7219_dai_clks_unprepare(struct clk_hw *hw)
{
struct da7219_priv *da7219 =
container_of(hw, struct da7219_priv, dai_clks_hw);
struct snd_soc_component *component = da7219->aad->component;
struct snd_soc_component *component = da7219->component;
snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
DA7219_DAI_CLK_EN_MASK, 0);
@ -1790,7 +1790,7 @@ static int da7219_dai_clks_is_prepared(struct clk_hw *hw)
{
struct da7219_priv *da7219 =
container_of(hw, struct da7219_priv, dai_clks_hw);
struct snd_soc_component *component = da7219->aad->component;
struct snd_soc_component *component = da7219->component;
u8 clk_reg;
clk_reg = snd_soc_component_read32(component, DA7219_DAI_CLK_MODE);
@ -1798,10 +1798,47 @@ static int da7219_dai_clks_is_prepared(struct clk_hw *hw)
return !!(clk_reg & DA7219_DAI_CLK_EN_MASK);
}
static unsigned long da7219_dai_clks_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct da7219_priv *da7219 =
container_of(hw, struct da7219_priv, dai_clks_hw);
struct snd_soc_component *component = da7219->component;
u8 fs = snd_soc_component_read32(component, DA7219_SR);
switch (fs & DA7219_SR_MASK) {
case DA7219_SR_8000:
return 8000;
case DA7219_SR_11025:
return 11025;
case DA7219_SR_12000:
return 12000;
case DA7219_SR_16000:
return 16000;
case DA7219_SR_22050:
return 22050;
case DA7219_SR_24000:
return 24000;
case DA7219_SR_32000:
return 32000;
case DA7219_SR_44100:
return 44100;
case DA7219_SR_48000:
return 48000;
case DA7219_SR_88200:
return 88200;
case DA7219_SR_96000:
return 96000;
default:
return 0;
}
}
static const struct clk_ops da7219_dai_clks_ops = {
.prepare = da7219_dai_clks_prepare,
.unprepare = da7219_dai_clks_unprepare,
.is_prepared = da7219_dai_clks_is_prepared,
.recalc_rate = da7219_dai_clks_recalc_rate,
};
static int da7219_register_dai_clks(struct snd_soc_component *component)
@ -1825,6 +1862,7 @@ static int da7219_register_dai_clks(struct snd_soc_component *component)
init.name = pdata->dai_clks_name;
init.ops = &da7219_dai_clks_ops;
init.flags = CLK_GET_RATE_NOCACHE;
da7219->dai_clks_hw.init = &init;
dai_clks = devm_clk_register(dev, &da7219->dai_clks_hw);
@ -1912,6 +1950,7 @@ static int da7219_probe(struct snd_soc_component *component)
unsigned int rev;
int ret;
da7219->component = component;
mutex_init(&da7219->ctrl_lock);
mutex_init(&da7219->pll_lock);

1
sound/soc/codecs/da7219.h
View File

@ -809,6 +809,7 @@ struct da7219_aad_priv;
/* Private data */
struct da7219_priv {
struct snd_soc_component *component;
struct da7219_aad_priv *aad;
struct da7219_pdata *pdata;