regulator: pwm: Don't warn on probe deferral

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@nvidia.com>
Link: https://lore.kernel.org/r/20200302141428.14119-1-jonathanh@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c
index e74e111..638329b 100644 (file)
--- 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;
        }