From: John Lin <john.lin@realtek.com>
Date: Tue, 12 May 2015 12:43:05 +0000 (+0800)
Subject: ASoC: rt5645: fix jack type detect error
X-Git-Tag: v4.2-rc1~109^2~38^2~12^2~1
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=05a9b46a718f664fce5d236abe72bffb8200d616;p=karo-tx-linux.git

ASoC: rt5645: fix jack type detect error

rt5645_jack_detect doesn't report the correct jack type consistently.
It mistakes OMTP type headset to CTIA type in particular HW design.
Register changes are needed for this issue. This patch can make it
more stable.

Signed-off-by: John Lin <john.lin@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 e62f3b22dbef..14b12c55580c 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -2800,37 +2800,42 @@ static int rt5645_jack_detect(struct snd_soc_codec *codec, int jack_insert)
 	unsigned int val;
 
 	if (jack_insert) {
+		regmap_write(rt5645->regmap, RT5645_CHARGE_PUMP, 0x0006);
+
 		if (codec->component.card->instantiated) {
-			snd_soc_dapm_force_enable_pin(&codec->dapm,
-				"LDO2");
+			/* for jack type detect */
+			snd_soc_dapm_force_enable_pin(&codec->dapm, "LDO2");
 			snd_soc_dapm_force_enable_pin(&codec->dapm,
 				"Mic Det Power");
 			snd_soc_dapm_sync(&codec->dapm);
 		} else {
 			/* Power up necessary bits for JD if dapm is
 			   not ready yet */
-			snd_soc_update_bits(codec, RT5645_PWR_MIXER,
+			regmap_update_bits(rt5645->regmap, RT5645_PWR_ANLG1,
+				RT5645_PWR_MB | RT5645_PWR_VREF2,
+				RT5645_PWR_MB | RT5645_PWR_VREF2);
+			regmap_update_bits(rt5645->regmap, RT5645_PWR_MIXER,
 				RT5645_PWR_LDO2, RT5645_PWR_LDO2);
-			snd_soc_update_bits(codec, RT5645_PWR_VOL,
+			regmap_update_bits(rt5645->regmap, RT5645_PWR_VOL,
 				RT5645_PWR_MIC_DET, RT5645_PWR_MIC_DET);
 		}
 
-		snd_soc_write(codec, RT5645_IN1_CTRL1, 0x0006);
-		snd_soc_write(codec, RT5645_JD_CTRL3, 0x00b0);
-
-		snd_soc_update_bits(codec, RT5645_IN1_CTRL2,
-			RT5645_CBJ_MN_JD, 0);
-		snd_soc_update_bits(codec, RT5645_IN1_CTRL2,
-			RT5645_CBJ_MN_JD, RT5645_CBJ_MN_JD);
-
-		msleep(400);
-		val = snd_soc_read(codec, RT5645_IN1_CTRL3) & 0x7;
+		regmap_write(rt5645->regmap, RT5645_JD_CTRL3, 0x00f0);
+		regmap_write(rt5645->regmap, RT5645_IN1_CTRL1, 0x0006);
+		regmap_update_bits(rt5645->regmap,
+				   RT5645_IN1_CTRL2, 0x1000, 0x1000);
+		msleep(100);
+		regmap_update_bits(rt5645->regmap,
+				   RT5645_IN1_CTRL2, 0x1000, 0x0000);
+
+		msleep(450);
+		regmap_read(rt5645->regmap, RT5645_IN1_CTRL3, &val);
+		val &= 0x7;
 		dev_dbg(codec->dev, "val = %d\n", val);
 
 		if (val == 1 || val == 2) {
 			rt5645->jack_type = SND_JACK_HEADSET;
 			if (rt5645->en_button_func) {
-				msleep(100);
 				rt5645_enable_push_button_irq(codec, true);
 			}
 		} else {