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authorCharles Keepax <ckeepax@opensource.wolfsonmicro.com>2013-02-20 21:28:40 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-03-04 07:01:00 +0400
commitee929a9780605f21ad67a1ccb626baa41e038c1a (patch)
tree7f46c9218a20210e1fa8988d723af3c5ba90c0b2
parentde1e6eedddeab2fa417c38c231d896198f903129 (diff)
downloadlinux-ee929a9780605f21ad67a1ccb626baa41e038c1a.tar.xz
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>
-rw-r--r--sound/soc/codecs/arizona.c39
-rw-r--r--sound/soc/codecs/arizona.h2
-rw-r--r--sound/soc/codecs/wm5102.c6
-rw-r--r--sound/soc/codecs/wm5102.h6
-rw-r--r--sound/soc/codecs/wm5110.c6
-rw-r--r--sound/soc/codecs/wm5110.h6
6 files changed, 61 insertions, 4 deletions
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index 149e44f42f84..2bebfae3485f 100644
--- 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 bedf12a527e5..f2ca41f8dc83 100644
--- 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 b8d461db369f..5515d85fd82f 100644
--- 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 d30477f3070c..adb38040f661 100644
--- 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 cd17b477781d..2d9b55f57eed 100644
--- 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 75e9351ccab0..e6c0cd4235c5 100644
--- 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