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authorBard Liao <bardliao@realtek.com>2015-12-30 15:33:21 +0800
committerMark Brown <broonie@kernel.org>2015-12-30 16:35:07 +0000
commitca8457bb02d8ecddf7f49ab874127dd4df782b16 (patch)
tree079c9ffbcb089694455b7dbe5b98ecaaa01188a1 /sound
parent8005c49d9aea74d382f474ce11afbbc7d7130bec (diff)
downloadlinux-ca8457bb02d8ecddf7f49ab874127dd4df782b16.tar.bz2
ASoC: rt5645: add sys clk detection
Add system clock detection to prevent output DC from SPO. Signed-off-by: Bard Liao <bardliao@realtek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/rt5645.c4
-rw-r--r--sound/soc/codecs/rt5645.h4
2 files changed, 8 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 28132375e427..61bbeac0c117 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -1646,9 +1646,13 @@ static int rt5645_spk_event(struct snd_soc_dapm_widget *w,
RT5645_PWR_CLS_D_L,
RT5645_PWR_CLS_D | RT5645_PWR_CLS_D_R |
RT5645_PWR_CLS_D_L);
+ snd_soc_update_bits(codec, RT5645_GEN_CTRL3,
+ RT5645_DET_CLK_MASK, RT5645_DET_CLK_MODE1);
break;
case SND_SOC_DAPM_PRE_PMD:
+ snd_soc_update_bits(codec, RT5645_GEN_CTRL3,
+ RT5645_DET_CLK_MASK, RT5645_DET_CLK_DIS);
snd_soc_write(codec, RT5645_EQ_CTRL2, 0);
snd_soc_update_bits(codec, RT5645_PWR_DIG1,
RT5645_PWR_CLS_D | RT5645_PWR_CLS_D_R |
diff --git a/sound/soc/codecs/rt5645.h b/sound/soc/codecs/rt5645.h
index 093e46d559fb..205e0715c99a 100644
--- a/sound/soc/codecs/rt5645.h
+++ b/sound/soc/codecs/rt5645.h
@@ -2122,6 +2122,10 @@ enum {
/* General Control3 (0xfc) */
#define RT5645_JD_PSV_MODE (0x1 << 12)
#define RT5645_IRQ_CLK_GATE_CTRL (0x1 << 11)
+#define RT5645_DET_CLK_MASK (0x3 << 9)
+#define RT5645_DET_CLK_DIS (0x0 << 9)
+#define RT5645_DET_CLK_MODE1 (0x1 << 9)
+#define RT5645_DET_CLK_MODE2 (0x2 << 9)
#define RT5645_MICINDET_MANU (0x1 << 7)
#define RT5645_RING2_SLEEVE_GND (0x1 << 5)