ASoC: wm5110: Add post SYSCLK register patch for rev D chip

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@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org

diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
index bbd64384ca1ce9b76f8efc63f8ead2e3bc8a1c0c..0048ce5bfa2f3db87ea0a7f0df1c52236451328e 100644 (file)
--- 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);
@@ -400,7 +441,7 @@ 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,