ASoC: adsp: Set DSP clock rate to SYSCLK rate
For simplicity always run the DSP at the SYSCLK rate.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index 3a8d75b..dcf14c3 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -544,6 +544,28 @@
switch (event) {
case SND_SOC_DAPM_POST_PMU:
+ /*
+ * For simplicity set the DSP clock rate to be the
+ * SYSCLK rate rather than making it configurable.
+ */
+ ret = regmap_read(dsp->regmap, ARIZONA_SYSTEM_CLOCK_1, &val);
+ if (ret != 0) {
+ adsp_err(dsp, "Failed to read SYSCLK state: %d\n",
+ ret);
+ return ret;
+ }
+ val = (val & ARIZONA_SYSCLK_FREQ_MASK)
+ >> ARIZONA_SYSCLK_FREQ_SHIFT;
+
+ ret = regmap_update_bits(dsp->regmap,
+ dsp->base + ADSP2_CLOCKING,
+ ADSP2_CLK_SEL_MASK, val);
+ if (ret != 0) {
+ adsp_err(dsp, "Failed to set clock rate: %d\n",
+ ret);
+ return ret;
+ }
+
if (dsp->dvfs) {
ret = regmap_read(dsp->regmap,
dsp->base + ADSP2_CLOCKING, &val);