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ASoC: arizona: Add gating for clock when used for direct MCLK

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Whilst ultimately we would like to move all the clocking over to the
clock framework, as an intermediate step to get people going for now
gating the source clocks for SYSCLK/ASYNCCLK when they are configured
to come directly from an MCLK pin.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Charles Keepax 2016-10-21 14:15:57 +01:00 committed by Mark Brown
parent 90554f2e2d
commit 7a4413d0dc
7 changed files with 71 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
sound/soc/codecs/arizona.c
View File

@ -1233,6 +1233,46 @@ static int arizona_set_opclk(struct snd_soc_codec *codec, unsigned int clk,
return -EINVAL;
}
int arizona_clk_ev(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
struct arizona *arizona = dev_get_drvdata(codec->dev->parent);
unsigned int val;
int clk_idx;
int ret;
ret = regmap_read(arizona->regmap, w->reg, &val);
if (ret) {
dev_err(codec->dev, "Failed to check clock source: %d\n", ret);
return ret;
}
val = (val & ARIZONA_SYSCLK_SRC_MASK) >> ARIZONA_SYSCLK_SRC_SHIFT;
switch (val) {
case ARIZONA_CLK_SRC_MCLK1:
clk_idx = ARIZONA_MCLK1;
break;
case ARIZONA_CLK_SRC_MCLK2:
clk_idx = ARIZONA_MCLK2;
break;
default:
return 0;
}
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
return clk_prepare_enable(arizona->mclk[clk_idx]);
case SND_SOC_DAPM_POST_PMD:
clk_disable_unprepare(arizona->mclk[clk_idx]);
return 0;
default:
return 0;
}
}
EXPORT_SYMBOL_GPL(arizona_clk_ev);
int arizona_set_sysclk(struct snd_soc_codec *codec, int clk_id,
int source, unsigned int freq, int dir)
{

2
sound/soc/codecs/arizona.h
View File

@ -273,6 +273,8 @@ extern int arizona_eq_coeff_put(struct snd_kcontrol *kcontrol,
extern int arizona_lhpf_coeff_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
extern int arizona_clk_ev(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event);
extern int arizona_set_sysclk(struct snd_soc_codec *codec, int clk_id,
int source, unsigned int freq, int dir);

6
sound/soc/codecs/cs47l24.c
View File

@ -335,9 +335,11 @@ static const struct snd_kcontrol_new cs47l24_aec_loopback_mux =
static const struct snd_soc_dapm_widget cs47l24_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("SYSCLK", ARIZONA_SYSTEM_CLOCK_1,
ARIZONA_SYSCLK_ENA_SHIFT, 0, NULL, 0),
ARIZONA_SYSCLK_ENA_SHIFT, 0, arizona_clk_ev,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("ASYNCCLK", ARIZONA_ASYNC_CLOCK_1,
ARIZONA_ASYNC_CLK_ENA_SHIFT, 0, NULL, 0),
ARIZONA_ASYNC_CLK_ENA_SHIFT, 0, arizona_clk_ev,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("OPCLK", ARIZONA_OUTPUT_SYSTEM_CLOCK,
ARIZONA_OPCLK_ENA_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("ASYNCOPCLK", ARIZONA_OUTPUT_ASYNC_CLOCK,

9
sound/soc/codecs/wm5102.c
View File

@ -607,6 +607,9 @@ static int wm5102_sysclk_ev(struct snd_soc_dapm_widget *w,
break;
case SND_SOC_DAPM_PRE_PMD:
break;
case SND_SOC_DAPM_PRE_PMU:
case SND_SOC_DAPM_POST_PMD:
return arizona_clk_ev(w, kcontrol, event);
default:
return 0;
}
@ -1077,9 +1080,11 @@ static const struct snd_kcontrol_new wm5102_aec_loopback_mux =
static const struct snd_soc_dapm_widget wm5102_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("SYSCLK", ARIZONA_SYSTEM_CLOCK_1, ARIZONA_SYSCLK_ENA_SHIFT,
0, wm5102_sysclk_ev,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD |
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("ASYNCCLK", ARIZONA_ASYNC_CLOCK_1,
ARIZONA_ASYNC_CLK_ENA_SHIFT, 0, NULL, 0),
ARIZONA_ASYNC_CLK_ENA_SHIFT, 0, arizona_clk_ev,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("OPCLK", ARIZONA_OUTPUT_SYSTEM_CLOCK,
ARIZONA_OPCLK_ENA_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("ASYNCOPCLK", ARIZONA_OUTPUT_ASYNC_CLOCK,

10
sound/soc/codecs/wm5110.c
View File

@ -183,7 +183,9 @@ static int wm5110_sysclk_ev(struct snd_soc_dapm_widget *w,
regmap_write_async(regmap, patch[i].reg,
patch[i].def);
break;
case SND_SOC_DAPM_PRE_PMU:
case SND_SOC_DAPM_POST_PMD:
return arizona_clk_ev(w, kcontrol, event);
default:
break;
}
@ -1073,9 +1075,11 @@ static const struct snd_kcontrol_new wm5110_output_anc_src[] = {
static const struct snd_soc_dapm_widget wm5110_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("SYSCLK", ARIZONA_SYSTEM_CLOCK_1, ARIZONA_SYSCLK_ENA_SHIFT,
0, wm5110_sysclk_ev, SND_SOC_DAPM_POST_PMU),
0, wm5110_sysclk_ev, SND_SOC_DAPM_POST_PMU |
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("ASYNCCLK", ARIZONA_ASYNC_CLOCK_1,
ARIZONA_ASYNC_CLK_ENA_SHIFT, 0, NULL, 0),
ARIZONA_ASYNC_CLK_ENA_SHIFT, 0, arizona_clk_ev,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("OPCLK", ARIZONA_OUTPUT_SYSTEM_CLOCK,
ARIZONA_OPCLK_ENA_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("ASYNCOPCLK", ARIZONA_OUTPUT_ASYNC_CLOCK,

9
sound/soc/codecs/wm8997.c
View File

@ -108,6 +108,9 @@ static int wm8997_sysclk_ev(struct snd_soc_dapm_widget *w,
break;
case SND_SOC_DAPM_PRE_PMD:
break;
case SND_SOC_DAPM_PRE_PMU:
case SND_SOC_DAPM_POST_PMD:
return arizona_clk_ev(w, kcontrol, event);
default:
return 0;
}
@ -408,9 +411,11 @@ static const struct snd_kcontrol_new wm8997_aec_loopback_mux =
static const struct snd_soc_dapm_widget wm8997_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("SYSCLK", ARIZONA_SYSTEM_CLOCK_1, ARIZONA_SYSCLK_ENA_SHIFT,
0, wm8997_sysclk_ev,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD |
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("ASYNCCLK", ARIZONA_ASYNC_CLOCK_1,
ARIZONA_ASYNC_CLK_ENA_SHIFT, 0, NULL, 0),
ARIZONA_ASYNC_CLK_ENA_SHIFT, 0, arizona_clk_ev,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("OPCLK", ARIZONA_OUTPUT_SYSTEM_CLOCK,
ARIZONA_OPCLK_ENA_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("ASYNCOPCLK", ARIZONA_OUTPUT_ASYNC_CLOCK,

6
sound/soc/codecs/wm8998.c
View File

@ -541,9 +541,11 @@ static const struct snd_kcontrol_new wm8998_aec_loopback_mux[] = {
static const struct snd_soc_dapm_widget wm8998_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("SYSCLK", ARIZONA_SYSTEM_CLOCK_1,
ARIZONA_SYSCLK_ENA_SHIFT, 0, NULL, 0),
ARIZONA_SYSCLK_ENA_SHIFT, 0, arizona_clk_ev,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("ASYNCCLK", ARIZONA_ASYNC_CLOCK_1,
ARIZONA_ASYNC_CLK_ENA_SHIFT, 0, NULL, 0),
ARIZONA_ASYNC_CLK_ENA_SHIFT, 0, arizona_clk_ev,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("OPCLK", ARIZONA_OUTPUT_SYSTEM_CLOCK,
ARIZONA_OPCLK_ENA_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("ASYNCOPCLK", ARIZONA_OUTPUT_ASYNC_CLOCK,