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authorMarek Vasut <marex@denx.de>2019-12-20 17:44:50 +0100
committerMark Brown <broonie@kernel.org>2020-01-14 15:54:31 +0000
commite19ecbf105b236a6334fab64d8fd5437b12ee019 (patch)
tree3bff123bf288daa939399f1b4ba933a02f197176 /sound/soc/codecs/sgtl5000.c
parentaa6dcba83177cf5a96a4ab3b206613d42f8e117b (diff)
ASoC: sgtl5000: Fix VDDA and VDDIO comparison
Comparing the voltage of VDDA and VDDIO to determine whether or not to enable VDDC manual override is insufficient. This is a problem in case the VDDA is supplied from different regulator than VDDIO, while both report the same voltage to the regulator framework. In that case where VDDA and VDDIO is supplied by different regulators, the VDDC manual override must not be applied. Fixes: b6319b061ba2 ("ASoC: sgtl5000: Fix charge pump source assignment") Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: Igor Opaniuk <igor.opaniuk@toradex.com> Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com> Cc: Mark Brown <broonie@kernel.org> Cc: Oleksandr Suvorov <oleksandr.suvorov@toradex.com> Link: https://lore.kernel.org/r/20191220164450.1395038-2-marex@denx.de Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/sgtl5000.c')
-rw-r--r--sound/soc/codecs/sgtl5000.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index aa1f9637d895..e949b372cead 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -1344,7 +1344,8 @@ static int sgtl5000_set_power_regs(struct snd_soc_component *component)
* if vddio == vdda the source of charge pump should be
* assigned manually to VDDIO
*/
- if (vddio == vdda) {
+ if (regulator_is_equal(sgtl5000->supplies[VDDA].consumer,
+ sgtl5000->supplies[VDDIO].consumer)) {
lreg_ctrl |= SGTL5000_VDDC_ASSN_OVRD;
lreg_ctrl |= SGTL5000_VDDC_MAN_ASSN_VDDIO <<
SGTL5000_VDDC_MAN_ASSN_SHIFT;