[PATCH V2] regulator: pwm: Don't warn on probe deferral

From: Jon Hunter
Date: Mon Mar 02 2020 - 09:14:35 EST


Deferred probe is an expected return value for devm_pwm_get(). Given
that the driver deals with it properly, rather than warn on probe
deferral, only output a message on probe deferral if debug level
prints are enabled.

Signed-off-by: Jon Hunter <jonathanh@xxxxxxxxxx>
---
Changes since V1:
- Update change to add a debug print for probe deferral

drivers/regulator/pwm-regulator.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c
index e74e11101fc1..638329bd0745 100644
--- a/drivers/regulator/pwm-regulator.c
+++ b/drivers/regulator/pwm-regulator.c
@@ -354,7 +354,11 @@ static int pwm_regulator_probe(struct platform_device *pdev)
drvdata->pwm = devm_pwm_get(&pdev->dev, NULL);
if (IS_ERR(drvdata->pwm)) {
ret = PTR_ERR(drvdata->pwm);
- dev_err(&pdev->dev, "Failed to get PWM: %d\n", ret);
+ if (ret == -EPROBE_DEFER)
+ dev_dbg(&pdev->dev,
+ "Failed to get PWM, deferring probe\n");
+ else
+ dev_err(&pdev->dev, "Failed to get PWM: %d\n", ret);
return ret;
}

--
2.17.1