diff options
| author | Eric Nelson <eric.nelson@boundarydevices.com> | 2015-02-27 08:06:45 -0700 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-04-09 18:40:56 -0400 |
| commit | dd7445688e96a42ba22eaa1b33677eb64ea24ec3 (patch) | |
| tree | 3feefcea90c792d78045b09c2e022959db09ed98 /sound | |
| parent | db17146a0d26211abea0e30dd251e5e99a1e96d4 (diff) | |
ASoC: sgtl5000: remove useless register write clearing CHRGPUMP_POWERUP
[ Upstream commit c7d910b87d3c8e9fcf4077089ca4327c12eee099 ]
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
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/sgtl5000.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c index f1287ff8dd29..7de7431efcb3 100644 --- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -1136,13 +1136,7 @@ static int sgtl5000_set_power_regs(struct snd_soc_codec *codec) /* Enable VDDC charge pump */ ana_pwr |= SGTL5000_VDDC_CHRGPMP_POWERUP; } else if (vddio >= 3100 && vdda >= 3100) { - /* - * if vddio and vddd > 3.1v, - * charge pump should be clean before set ana_pwr - */ - snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, - SGTL5000_VDDC_CHRGPMP_POWERUP, 0); - + ana_pwr &= ~SGTL5000_VDDC_CHRGPMP_POWERUP; /* VDDC use VDDIO rail */ lreg_ctrl |= SGTL5000_VDDC_ASSN_OVRD; lreg_ctrl |= SGTL5000_VDDC_MAN_ASSN_VDDIO << |