linux-kernel - [PATCH 3.8 138/152] ASoC: wm5110: Add post SYSCLK register patch for rev D chip

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Date:	Fri,  6 Dec 2013 15:11:02 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>,
	Mark Brown <broonie@...aro.org>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.8 138/152] ASoC: wm5110: Add post SYSCLK register patch for rev D chip

3.8.13.14 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>

commit f69f86b1ba6493126a7f093a65a8952bcb183de2 upstream.

Certain registers require patching after the SYSCLK has been brought up
add support for this into the CODEC driver.

Signed-off-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@...aro.org>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 sound/soc/codecs/wm5110.c | 43 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
index ccbdc46..e0bb6dc 100644
--- a/sound/soc/codecs/wm5110.c
+++ b/sound/soc/codecs/wm5110.c
@@ -37,6 +37,47 @@ struct wm5110_priv {
 	struct arizona_fll fll[2];
 };
 
+static const struct reg_default wm5110_sysclk_revd_patch[] = {
+	{ 0x3093, 0x1001 },
+	{ 0x30E3, 0x1301 },
+	{ 0x3133, 0x1201 },
+	{ 0x3183, 0x1501 },
+	{ 0x31D3, 0x1401 },
+};
+
+static int wm5110_sysclk_ev(struct snd_soc_dapm_widget *w,
+			    struct snd_kcontrol *kcontrol, int event)
+{
+	struct snd_soc_codec *codec = w->codec;
+	struct arizona *arizona = dev_get_drvdata(codec->dev->parent);
+	struct regmap *regmap = codec->control_data;
+	const struct reg_default *patch = NULL;
+	int i, patch_size;
+
+	switch (arizona->rev) {
+	case 3:
+		patch = wm5110_sysclk_revd_patch;
+		patch_size = ARRAY_SIZE(wm5110_sysclk_revd_patch);
+		break;
+	default:
+		return 0;
+	}
+
+	switch (event) {
+	case SND_SOC_DAPM_POST_PMU:
+		if (patch)
+			for (i = 0; i < patch_size; i++)
+				regmap_write(regmap, patch[i].reg,
+					     patch[i].def);
+		break;
+
+	default:
+		break;
+	}
+
+	return 0;
+}
+
 static DECLARE_TLV_DB_SCALE(ana_tlv, 0, 100, 0);
 static DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
 static DECLARE_TLV_DB_SCALE(digital_tlv, -6400, 50, 0);
@@ -354,7 +395,7 @@ static const struct snd_kcontrol_new wm5110_aec_loopback_mux =
 
 static const struct snd_soc_dapm_widget wm5110_dapm_widgets[] = {
 SND_SOC_DAPM_SUPPLY("SYSCLK", ARIZONA_SYSTEM_CLOCK_1, ARIZONA_SYSCLK_ENA_SHIFT,
-		    0, NULL, 0),
+		    0, wm5110_sysclk_ev, SND_SOC_DAPM_POST_PMU),
 SND_SOC_DAPM_SUPPLY("ASYNCCLK", ARIZONA_ASYNC_CLOCK_1,
 		    ARIZONA_ASYNC_CLK_ENA_SHIFT, 0, NULL, 0),
 SND_SOC_DAPM_SUPPLY("OPCLK", ARIZONA_OUTPUT_SYSTEM_CLOCK,
-- 
1.8.3.2

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