ASoC: Intel: byt-rt5640: Enable DMIC interface for default DAPM route

It turned out DMIC interface wasn't enabled/disabled runtime for active
DMIC route in the rt5640 codec driver anymore after commit
71d97a794301 ("ASoC: rt5640: Use the platform data for DMIC settings").

Since DMIC interface must be enabled explicitly either by passing platform
data to rt5640 codec driver or by calling new rt5640_dmic_enable() this
patch adds a DMI quirk flag that is used to conditionally enable DMIC
interface during sound card init time.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 13 insertions, 3 deletions

diff --git a/sound/soc/intel/byt-rt5640.c b/sound/soc/intel/byt-rt5640.c
index c323a101214e..8392c160d9e2 100644
--- a/sound/soc/intel/byt-rt5640.c
+++ b/sound/soc/intel/byt-rt5640.c
@@ -59,7 +59,11 @@ enum {
         BYT_RT5640_IN1_MAP,
 };
 
-static unsigned long byt_rt5640_custom_map = BYT_RT5640_DMIC1_MAP;
+#define BYT_RT5640_MAP(quirk)   ((quirk) & 0xff)
+#define BYT_RT5640_DMIC_EN      BIT(16)
+
+static unsigned long byt_rt5640_quirk = BYT_RT5640_DMIC1_MAP |
+                                        BYT_RT5640_DMIC_EN;
 
 static const struct snd_kcontrol_new byt_rt5640_controls[] = {
         SOC_DAPM_PIN_SWITCH("Headphone"),
@@ -94,7 +98,7 @@ static int byt_rt5640_hw_params(struct snd_pcm_substream *substream,
 
 static int byt_rt5640_quirk_cb(const struct dmi_system_id *id)
 {
-        byt_rt5640_custom_map = (unsigned long)id->driver_data;
+        byt_rt5640_quirk = (unsigned long)id->driver_data;
         return 1;
 }
 
@@ -129,7 +133,7 @@ static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
         }
 
         dmi_check_system(byt_rt5640_quirk_table);
-        switch (byt_rt5640_custom_map) {
+        switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
         case BYT_RT5640_IN1_MAP:
                 custom_map = byt_rt5640_intmic_in1_map;
                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
@@ -143,6 +147,12 @@ static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
         if (ret)
                 return ret;
 
+        if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
+                ret = rt5640_dmic_enable(codec, 0, 0);
+                if (ret)
+                        return ret;
+        }
+
         snd_soc_dapm_ignore_suspend(dapm, "HPOL");
         snd_soc_dapm_ignore_suspend(dapm, "HPOR");