From: Brian Norris Date: Thu, 26 Aug 2021 19:40:17 +0000 (-0700) Subject: regulator: core: resolve supply voltage deferral silently X-Git-Tag: v6.6.17~8592^2~26 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=adea283117225281ecf537171a06dd6e430bd8db;p=platform%2Fkernel%2Flinux-rpi.git 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 Signed-off-by: Brian Norris Link: https://lore.kernel.org/r/20210826124015.1.Iab79c6dd374ec48beac44be2fcddd165dd26476b@changeid Signed-off-by: Mark Brown --- diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index ca6caba..85783fb 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; }