regulator: pwm-regulator: Make use of the helper function dev_err_probe()

devm_pwm_get() can return -EPROBE_DEFER if the pwm regulator is not
ready yet. Use dev_err_probe() for pwm regulator resources
to indicate the deferral reason when waiting for the
resource to come up.

Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Link: https://lore.kernel.org/r/20210925173413.1019-1-linux.amoon@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c
index 7629476..b9eeaff 100644 (file)
--- a/drivers/regulator/pwm-regulator.c
+++ b/drivers/regulator/pwm-regulator.c
@@ -352,15 +352,9 @@ static int pwm_regulator_probe(struct platform_device *pdev)
        config.init_data = init_data;
 
        drvdata->pwm = devm_pwm_get(&pdev->dev, NULL);
-       if (IS_ERR(drvdata->pwm)) {
-               ret = PTR_ERR(drvdata->pwm);
-               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;
-       }
+       if (IS_ERR(drvdata->pwm))
+               return dev_err_probe(&pdev->dev, PTR_ERR(drvdata->pwm),
+                                    "Failed to get PWM\n");
 
        if (init_data->constraints.boot_on || init_data->constraints.always_on)
                gpio_flags = GPIOD_OUT_HIGH;