diff options
Diffstat (limited to 'sound/soc/codecs/rt5651.c')
| -rw-r--r-- | sound/soc/codecs/rt5651.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt5651.c b/sound/soc/codecs/rt5651.c index 7ff1bc892cfd..486817809b7b 100644 --- a/sound/soc/codecs/rt5651.c +++ b/sound/soc/codecs/rt5651.c @@ -1632,6 +1632,10 @@ static int rt5651_set_jack(struct snd_soc_component *component, snd_soc_component_update_bits(component, RT5651_PWR_ANLG2, RT5651_PWR_JD_M, RT5651_PWR_JD_M); + /* Set OVCD threshold current and scale-factor */ + snd_soc_component_write(component, RT5651_PR_BASE + RT5651_BIAS_CUR4, + 0xa800 | rt5651->ovcd_sf); + snd_soc_component_update_bits(component, RT5651_MICBIAS, RT5651_MIC1_OVCD_MASK | RT5651_MIC1_OVTH_MASK | @@ -1685,7 +1689,13 @@ static void rt5651_apply_properties(struct snd_soc_component *component) "realtek,jack-detect-source", &val) == 0) rt5651->jd_src = val; + /* + * Testing on various boards has shown that good defaults for the OVCD + * threshold and scale-factor are 2000µA and 0.75. For an effective + * limit of 1500µA, this seems to be more reliable then 1500µA and 1.0. + */ rt5651->ovcd_th = RT5651_MIC1_OVTH_2000UA; + rt5651->ovcd_sf = RT5651_MIC_OVCD_SF_0P75; if (device_property_read_u32(component->dev, "realtek,over-current-threshold-microamp", &val) == 0) { @@ -1704,6 +1714,15 @@ static void rt5651_apply_properties(struct snd_soc_component *component) val); } } + + if (device_property_read_u32(component->dev, + "realtek,over-current-scale-factor", &val) == 0) { + if (val <= RT5651_OVCD_SF_1P5) + rt5651->ovcd_sf = val << RT5651_MIC_OVCD_SF_SFT; + else + dev_warn(component->dev, "Warning: Invalid over-current-scale-factor value: %d, defaulting to 0.75\n", + val); + } } static int rt5651_probe(struct snd_soc_component *component) |