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authorBrian Norris <briannorris@chromium.org>2021-08-26 22:40:17 +0300
committerMark Brown <broonie@kernel.org>2021-09-13 03:59:25 +0300
commitadea283117225281ecf537171a06dd6e430bd8db (patch)
treeed59e76c4f0fbc772b1e573828484a6faeffc7a5 /drivers/regulator
parent6998c575b6dc26275b61987a3d70a8a4c976048b (diff)
downloadlinux-adea283117225281ecf537171a06dd6e430bd8db.tar.xz
regulator: core: resolve supply voltage deferral silently
Voltage-controlled regulators depend on their supply regulator for retrieving their voltage, and so they might return -EPROBE_DEFER at this stage. Our caller already attempts to resolve supplies and retry, so we shouldn't be printing this error to logs. Quiets log messages like this, on Rockchip RK3399 Gru/Kevin boards: [ 1.033057] ppvar_bigcpu: failed to get the current voltage: -EPROBE_DEFER ... [ 1.036735] ppvar_litcpu: failed to get the current voltage: -EPROBE_DEFER ... [ 1.040366] ppvar_gpu: failed to get the current voltage: -EPROBE_DEFER ... [ 1.044086] ppvar_centerlogic: failed to get the current voltage: -EPROBE_DEFER Cc: Chen-Yu Tsai <wenst@chromium.org> Signed-off-by: Brian Norris <briannorris@chromium.org> Link: https://lore.kernel.org/r/20210826124015.1.Iab79c6dd374ec48beac44be2fcddd165dd26476b@changeid Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/core.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index ca6caba8a191..85783fb3aadf 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1151,9 +1151,10 @@ static int machine_constraints_voltage(struct regulator_dev *rdev,
}
if (current_uV < 0) {
- rdev_err(rdev,
- "failed to get the current voltage: %pe\n",
- ERR_PTR(current_uV));
+ if (current_uV != -EPROBE_DEFER)
+ rdev_err(rdev,
+ "failed to get the current voltage: %pe\n",
+ ERR_PTR(current_uV));
return current_uV;
}