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ASoC: sgtl5000: remove useless register write clearing CHRGPUMP_POWERUP
The SGTL5000_CHIP_ANA_POWER register is cached. Update the cached value instead of writing it directly. Patch inspired by Russell King's more colorful remarks in this patch: https://github.com/SolidRun/linux-imx6-3.14/commit/dd4bf6a Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
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@ -1151,13 +1151,7 @@ static int sgtl5000_set_power_regs(struct snd_soc_codec *codec)
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/* Enable VDDC charge pump */
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ana_pwr |= SGTL5000_VDDC_CHRGPMP_POWERUP;
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} else if (vddio >= 3100 && vdda >= 3100) {
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/*
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* if vddio and vddd > 3.1v,
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* charge pump should be clean before set ana_pwr
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*/
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snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
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SGTL5000_VDDC_CHRGPMP_POWERUP, 0);
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ana_pwr &= ~SGTL5000_VDDC_CHRGPMP_POWERUP;
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/* VDDC use VDDIO rail */
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lreg_ctrl |= SGTL5000_VDDC_ASSN_OVRD;
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lreg_ctrl |= SGTL5000_VDDC_MAN_ASSN_VDDIO <<
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