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

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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>
This commit is contained in:
Charles Keepax 2013-02-20 17:28:40 +00:00 committed by Mark Brown
parent de1e6eeddd
commit ee929a9780
6 changed files with 61 additions and 4 deletions
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39
sound/soc/codecs/arizona.c
View File

@ -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)
{

2
sound/soc/codecs/arizona.h
View File

@ -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);

6
sound/soc/codecs/wm5102.c
View File

@ -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;
}

6
sound/soc/codecs/wm5102.h
View File

@ -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

6
sound/soc/codecs/wm5110.c
View File

@ -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;
}

6
sound/soc/codecs/wm5110.h
View File

@ -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