diff options
Diffstat (limited to 'sound/soc/codecs/da7219-aad.c')
| -rw-r--r-- | sound/soc/codecs/da7219-aad.c | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/sound/soc/codecs/da7219-aad.c b/sound/soc/codecs/da7219-aad.c index 6274d79c1353..1d1d10dd92ae 100644 --- a/sound/soc/codecs/da7219-aad.c +++ b/sound/soc/codecs/da7219-aad.c @@ -115,19 +115,21 @@ static void da7219_aad_hptest_work(struct work_struct *work) struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec); u16 tonegen_freq_hptest; - u8 pll_srm_sts, gain_ramp_ctrl, accdet_cfg8; + u8 pll_srm_sts, pll_ctrl, gain_ramp_ctrl, accdet_cfg8; int report = 0, ret = 0; - /* Lock DAPM and any Kcontrols that are affected by this test */ + /* Lock DAPM, Kcontrols affected by this test and the PLL */ snd_soc_dapm_mutex_lock(dapm); - mutex_lock(&da7219->lock); + mutex_lock(&da7219->ctrl_lock); + mutex_lock(&da7219->pll_lock); /* Ensure MCLK is available for HP test procedure */ if (da7219->mclk) { ret = clk_prepare_enable(da7219->mclk); if (ret) { dev_err(codec->dev, "Failed to enable mclk - %d\n", ret); - mutex_unlock(&da7219->lock); + mutex_unlock(&da7219->pll_lock); + mutex_unlock(&da7219->ctrl_lock); snd_soc_dapm_mutex_unlock(dapm); return; } @@ -136,12 +138,21 @@ static void da7219_aad_hptest_work(struct work_struct *work) /* * If MCLK not present, then we're using the internal oscillator and * require different frequency settings to achieve the same result. + * + * If MCLK is present, but PLL is not enabled then we enable it here to + * ensure a consistent detection procedure. */ pll_srm_sts = snd_soc_read(codec, DA7219_PLL_SRM_STS); - if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) + if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) { tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ); - else + + pll_ctrl = snd_soc_read(codec, DA7219_PLL_CTRL); + if ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS) + da7219_set_pll(codec, DA7219_SYSCLK_PLL, + DA7219_PLL_FREQ_OUT_98304); + } else { tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC); + } /* Ensure gain ramping at fastest rate */ gain_ramp_ctrl = snd_soc_read(codec, DA7219_GAIN_RAMP_CTRL); @@ -302,11 +313,17 @@ static void da7219_aad_hptest_work(struct work_struct *work) snd_soc_update_bits(codec, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK, DA7219_HP_R_AMP_OE_MASK); + /* Restore PLL to previous configuration, if re-configured */ + if ((pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) && + ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS)) + da7219_set_pll(codec, DA7219_SYSCLK_MCLK, 0); + /* Remove MCLK, if previously enabled */ if (da7219->mclk) clk_disable_unprepare(da7219->mclk); - mutex_unlock(&da7219->lock); + mutex_unlock(&da7219->pll_lock); + mutex_unlock(&da7219->ctrl_lock); snd_soc_dapm_mutex_unlock(dapm); /* |