ASoC: arizona: Add support for directly setting the FLL REFCLK

This patch allows the REFCLK to be set directly allowing much greater
flexibility in how the FLLs are configured.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index 149e44f..2bebfae 100644 (file)
--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -1139,6 +1139,45 @@ static void arizona_disable_fll(struct arizona_fll *fll)
                pm_runtime_put_autosuspend(arizona->dev);
 }
 
+int arizona_set_fll_refclk(struct arizona_fll *fll, int source,
+                          unsigned int Fref, unsigned int Fout)
+{
+       struct arizona_fll_cfg ref, sync;
+       int ret;
+
+       if (source < 0)
+               return -EINVAL;
+
+       if (fll->ref_src == source && fll->ref_freq == Fref &&
+           fll->fout == Fout)
+               return 0;
+
+       if (Fout) {
+               ret = arizona_calc_fll(fll, &ref, Fref, Fout);
+               if (ret != 0)
+                       return ret;
+
+               if (fll->sync_src >= 0) {
+                       ret = arizona_calc_fll(fll, &sync, fll->sync_freq, Fout);
+                       if (ret != 0)
+                               return ret;
+               }
+       }
+
+       fll->ref_src = source;
+       fll->ref_freq = Fref;
+       fll->fout = Fout;
+
+       if (Fout) {
+               arizona_enable_fll(fll, &ref, &sync);
+       } else {
+               arizona_disable_fll(fll);
+       }
+
+       return 0;
+}
+EXPORT_SYMBOL_GPL(arizona_set_fll_refclk);
+
 int arizona_set_fll(struct arizona_fll *fll, int source,
                    unsigned int Fref, unsigned int Fout)
 {

diff --git a/sound/soc/codecs/arizona.h b/sound/soc/codecs/arizona.h
index bedf12a..f2ca41f 100644 (file)
--- a/sound/soc/codecs/arizona.h
+++ b/sound/soc/codecs/arizona.h
@@ -211,6 +211,8 @@ struct arizona_fll {
 
 extern int arizona_init_fll(struct arizona *arizona, int id, int base,
                            int lock_irq, int ok_irq, struct arizona_fll *fll);
+extern int arizona_set_fll_refclk(struct arizona_fll *fll, int source,
+                                 unsigned int Fref, unsigned int Fout);
 extern int arizona_set_fll(struct arizona_fll *fll, int source,
                           unsigned int Fref, unsigned int Fout);
 

diff --git a/sound/soc/codecs/wm5102.c b/sound/soc/codecs/wm5102.c
index b8d461d..5515d85 100644 (file)
--- a/sound/soc/codecs/wm5102.c
+++ b/sound/soc/codecs/wm5102.c
@@ -1483,6 +1483,12 @@ static int wm5102_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
                return arizona_set_fll(&wm5102->fll[0], source, Fref, Fout);
        case WM5102_FLL2:
                return arizona_set_fll(&wm5102->fll[1], source, Fref, Fout);
+       case WM5102_FLL1_REFCLK:
+               return arizona_set_fll_refclk(&wm5102->fll[0], source, Fref,
+                                             Fout);
+       case WM5102_FLL2_REFCLK:
+               return arizona_set_fll_refclk(&wm5102->fll[1], source, Fref,
+                                             Fout);
        default:
                return -EINVAL;
        }

diff --git a/sound/soc/codecs/wm5102.h b/sound/soc/codecs/wm5102.h
index d30477f..adb3804 100644 (file)
--- a/sound/soc/codecs/wm5102.h
+++ b/sound/soc/codecs/wm5102.h
@@ -15,7 +15,9 @@
 
 #include "arizona.h"
 
-#define WM5102_FLL1 1
-#define WM5102_FLL2 2
+#define WM5102_FLL1        1
+#define WM5102_FLL2        2
+#define WM5102_FLL1_REFCLK 3
+#define WM5102_FLL2_REFCLK 4
 
 #endif

diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
index cd17b47..2d9b55f 100644 (file)
--- a/sound/soc/codecs/wm5110.c
+++ b/sound/soc/codecs/wm5110.c
@@ -880,6 +880,12 @@ static int wm5110_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
                return arizona_set_fll(&wm5110->fll[0], source, Fref, Fout);
        case WM5110_FLL2:
                return arizona_set_fll(&wm5110->fll[1], source, Fref, Fout);
+       case WM5110_FLL1_REFCLK:
+               return arizona_set_fll_refclk(&wm5110->fll[0], source, Fref,
+                                             Fout);
+       case WM5110_FLL2_REFCLK:
+               return arizona_set_fll_refclk(&wm5110->fll[1], source, Fref,
+                                             Fout);
        default:
                return -EINVAL;
        }

diff --git a/sound/soc/codecs/wm5110.h b/sound/soc/codecs/wm5110.h
index 75e9351..e6c0cd4 100644 (file)
--- a/sound/soc/codecs/wm5110.h
+++ b/sound/soc/codecs/wm5110.h
@@ -15,7 +15,9 @@
 
 #include "arizona.h"
 
-#define WM5110_FLL1 1
-#define WM5110_FLL2 2
+#define WM5110_FLL1        1
+#define WM5110_FLL2        2
+#define WM5110_FLL1_REFCLK 3
+#define WM5110_FLL2_REFCLK 4
 
 #endif