In preparation for additional features on the FLL this patch moves the code selecting the REFCLK source based on the 32kHz clock into the FLL initialisation function.
Signed-off-by: Charles Keepax ckeepax@opensource.wolfsonmicro.com --- sound/soc/codecs/arizona.c | 28 ++++++++++++++++------------ sound/soc/codecs/arizona.h | 3 +++ 2 files changed, 19 insertions(+), 12 deletions(-)
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index ac948a6..c14e755 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -1079,7 +1079,7 @@ int arizona_set_fll(struct arizona_fll *fll, int source, { struct arizona *arizona = fll->arizona; struct arizona_fll_cfg cfg, sync; - unsigned int reg, val; + unsigned int reg; int syncsrc; bool ena; int ret; @@ -1096,16 +1096,7 @@ int arizona_set_fll(struct arizona_fll *fll, int source, ena = reg & ARIZONA_FLL1_ENA;
if (Fout) { - /* Do we have a 32kHz reference? */ - regmap_read(arizona->regmap, ARIZONA_CLOCK_32K_1, &val); - switch (val & ARIZONA_CLK_32K_SRC_MASK) { - case ARIZONA_CLK_SRC_MCLK1: - case ARIZONA_CLK_SRC_MCLK2: - syncsrc = val & ARIZONA_CLK_32K_SRC_MASK; - break; - default: - syncsrc = -1; - } + syncsrc = fll->ref_src;
if (source == syncsrc) syncsrc = -1; @@ -1115,7 +1106,7 @@ int arizona_set_fll(struct arizona_fll *fll, int source, if (ret != 0) return ret;
- ret = arizona_calc_fll(fll, &cfg, 32768, Fout); + ret = arizona_calc_fll(fll, &cfg, fll->ref_freq, Fout); if (ret != 0) return ret; } else { @@ -1178,6 +1169,7 @@ int arizona_init_fll(struct arizona *arizona, int id, int base, int lock_irq, int ok_irq, struct arizona_fll *fll) { int ret; + unsigned int val;
init_completion(&fll->ok);
@@ -1185,6 +1177,18 @@ int arizona_init_fll(struct arizona *arizona, int id, int base, int lock_irq, fll->base = base; fll->arizona = arizona;
+ /* Configure default refclk to 32kHz if we have one */ + regmap_read(arizona->regmap, ARIZONA_CLOCK_32K_1, &val); + switch (val & ARIZONA_CLK_32K_SRC_MASK) { + case ARIZONA_CLK_SRC_MCLK1: + case ARIZONA_CLK_SRC_MCLK2: + fll->ref_src = val & ARIZONA_CLK_32K_SRC_MASK; + break; + default: + fll->ref_src = -1; + } + fll->ref_freq = 32768; + snprintf(fll->lock_name, sizeof(fll->lock_name), "FLL%d lock", id); snprintf(fll->clock_ok_name, sizeof(fll->clock_ok_name), "FLL%d clock OK", id); diff --git a/sound/soc/codecs/arizona.h b/sound/soc/codecs/arizona.h index 116372c..124f9f0 100644 --- a/sound/soc/codecs/arizona.h +++ b/sound/soc/codecs/arizona.h @@ -201,6 +201,9 @@ struct arizona_fll { unsigned int fref; unsigned int fout;
+ int ref_src; + unsigned int ref_freq; + char lock_name[ARIZONA_FLL_NAME_LEN]; char clock_ok_name[ARIZONA_FLL_NAME_LEN]; };