From: Oleksandr Suvorov <[email protected]> [ Upstream commit b6319b061ba279577fd7030a9848fbd6a17151e3 ]
If VDDA != VDDIO and any of them is greater than 3.1V, charge pump source can be assigned automatically [1]. [1] https://www.nxp.com/docs/en/data-sheet/SGTL5000.pdf Signed-off-by: Oleksandr Suvorov <[email protected]> Reviewed-by: Marcel Ziswiler <[email protected]> Reviewed-by: Igor Opaniuk <[email protected]> Reviewed-by: Fabio Estevam <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Mark Brown <[email protected]> Signed-off-by: Sasha Levin <[email protected]> --- sound/soc/codecs/sgtl5000.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c index 0b11a2e01b2fc..b649675d190d2 100644 --- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -1084,12 +1084,17 @@ static int sgtl5000_set_power_regs(struct snd_soc_codec *codec) SGTL5000_INT_OSC_EN); /* Enable VDDC charge pump */ ana_pwr |= SGTL5000_VDDC_CHRGPMP_POWERUP; - } else if (vddio >= 3100 && vdda >= 3100) { + } else { ana_pwr &= ~SGTL5000_VDDC_CHRGPMP_POWERUP; - /* VDDC use VDDIO rail */ - lreg_ctrl |= SGTL5000_VDDC_ASSN_OVRD; - lreg_ctrl |= SGTL5000_VDDC_MAN_ASSN_VDDIO << - SGTL5000_VDDC_MAN_ASSN_SHIFT; + /* + * if vddio == vdda the source of charge pump should be + * assigned manually to VDDIO + */ + if (vddio == vdda) { + lreg_ctrl |= SGTL5000_VDDC_ASSN_OVRD; + lreg_ctrl |= SGTL5000_VDDC_MAN_ASSN_VDDIO << + SGTL5000_VDDC_MAN_ASSN_SHIFT; + } } snd_soc_write(codec, SGTL5000_CHIP_LINREG_CTRL, lreg_ctrl); -- 2.20.1
