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ASoC: sgtl5000: Fix charge pump source assignment

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[ Upstream commit b6319b061b ]

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 <oleksandr.suvorov@toradex.com>
Reviewed-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Igor Opaniuk <igor.opaniuk@toradex.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20190719100524.23300-7-oleksandr.suvorov@toradex.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Oleksandr Suvorov
2019-07-19 10:05:37 +00:00
committed by Greg Kroah-Hartman
parent f49a9f57ed
commit ae6be6302e
1 changed files with 10 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
sound/soc/codecs/sgtl5000.c
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@ -1166,12 +1166,17 @@ static int sgtl5000_set_power_regs(struct snd_soc_codec *codec)
SGTL5000_INT_OSC_EN); SGTL5000_INT_OSC_EN);
/* Enable VDDC charge pump */ /* Enable VDDC charge pump */
ana_pwr |= SGTL5000_VDDC_CHRGPMP_POWERUP; ana_pwr |= SGTL5000_VDDC_CHRGPMP_POWERUP;
} else if (vddio >= 3100 && vdda >= 3100) { } else {
ana_pwr &= ~SGTL5000_VDDC_CHRGPMP_POWERUP; ana_pwr &= ~SGTL5000_VDDC_CHRGPMP_POWERUP;
/* VDDC use VDDIO rail */ /*
lreg_ctrl |= SGTL5000_VDDC_ASSN_OVRD; * if vddio == vdda the source of charge pump should be
lreg_ctrl |= SGTL5000_VDDC_MAN_ASSN_VDDIO << * assigned manually to VDDIO
SGTL5000_VDDC_MAN_ASSN_SHIFT; */
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); snd_soc_write(codec, SGTL5000_CHIP_LINREG_CTRL, lreg_ctrl);