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authorTakashi Iwai <tiwai@suse.de>2014-06-03 11:51:14 +0200
committerTakashi Iwai <tiwai@suse.de>2014-06-03 11:51:14 +0200
commit8743dcd6639c28204ac03fb3e9db7932e3d85418 (patch)
tree53b80846cf6731ddb196d522ed2bbf0f76da8344 /sound/soc/codecs/max98090.c
parentefd4b76ef789541e7046e873b3546209352cdb59 (diff)
parente1d4d3c854f25cff6c6c139588570e124d5e8fa4 (diff)
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Merge tag 'asoc-v3.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Final updates for v3.16 A few more updates from the last week of development, nothing too exciting. Highlights include: - GPIO descriptor support for jacks - More updates and fixes to the Freescale SSI, Intel and rsnd drivers. - New drivers for Analog Devices ADAU1361, ADAU1381, ADAU1761 and ADAU1781, and Realtek RT5677.
Diffstat (limited to 'sound/soc/codecs/max98090.c')
-rw-r--r--sound/soc/codecs/max98090.c31
1 files changed, 27 insertions, 4 deletions
diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c
index 9b76f5a45115..f5fccc7a8e89 100644
--- a/sound/soc/codecs/max98090.c
+++ b/sound/soc/codecs/max98090.c
@@ -17,6 +17,7 @@
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/acpi.h>
+#include <linux/clk.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
@@ -1547,19 +1548,19 @@ static const int lrclk_rates[] = {
};
static const int user_pclk_rates[] = {
- 13000000, 13000000
+ 13000000, 13000000, 19200000, 19200000,
};
static const int user_lrclk_rates[] = {
- 44100, 48000
+ 44100, 48000, 44100, 48000,
};
static const unsigned long long ni_value[] = {
- 3528, 768
+ 3528, 768, 441, 8
};
static const unsigned long long mi_value[] = {
- 8125, 1625
+ 8125, 1625, 1500, 25
};
static void max98090_configure_bclk(struct snd_soc_codec *codec)
@@ -1800,6 +1801,19 @@ static int max98090_set_bias_level(struct snd_soc_codec *codec,
break;
case SND_SOC_BIAS_PREPARE:
+ /*
+ * SND_SOC_BIAS_PREPARE is called while preparing for a
+ * transition to ON or away from ON. If current bias_level
+ * is SND_SOC_BIAS_ON, then it is preparing for a transition
+ * away from ON. Disable the clock in that case, otherwise
+ * enable it.
+ */
+ if (!IS_ERR(max98090->mclk)) {
+ if (codec->dapm.bias_level == SND_SOC_BIAS_ON)
+ clk_disable_unprepare(max98090->mclk);
+ else
+ clk_prepare_enable(max98090->mclk);
+ }
break;
case SND_SOC_BIAS_STANDBY:
@@ -1929,6 +1943,11 @@ static int max98090_dai_set_sysclk(struct snd_soc_dai *dai,
if (freq == max98090->sysclk)
return 0;
+ if (!IS_ERR(max98090->mclk)) {
+ freq = clk_round_rate(max98090->mclk, freq);
+ clk_set_rate(max98090->mclk, freq);
+ }
+
/* Setup clocks for slave mode, and using the PLL
* PSCLK = 0x01 (when master clk is 10MHz to 20MHz)
* 0x02 (when master clk is 20MHz to 40MHz)..
@@ -2213,6 +2232,10 @@ static int max98090_probe(struct snd_soc_codec *codec)
dev_dbg(codec->dev, "max98090_probe\n");
+ max98090->mclk = devm_clk_get(codec->dev, "mclk");
+ if (PTR_ERR(max98090->mclk) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+
max98090->codec = codec;
/* Reset the codec, the DSP core, and disable all interrupts */