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>

diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 28132375e4274a6e94e830c2fe1e8fcddd255747..61bbeac0c1175616f342cf74ff59321ed0d8661c 100644 (file)
--- 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 093e46d559fbab24aa05efc5c74a2e8488fa49d0..205e0715c99abad45e771c0504b92a512f5b6adf 100644 (file)
--- 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)