Update Linux to v5.10.109

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz

Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c
index 0a9d61a..7629476 100644
--- a/drivers/regulator/pwm-regulator.c
+++ b/drivers/regulator/pwm-regulator.c
@@ -48,7 +48,7 @@
 	unsigned int dutycycle;
 };
 
-/**
+/*
  * Voltage table call-backs
  */
 static void pwm_regulator_init_state(struct regulator_dev *rdev)
@@ -354,7 +354,11 @@
 	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;
 	}
 
@@ -386,7 +390,7 @@
 	return 0;
 }
 
-static const struct of_device_id pwm_of_match[] = {
+static const struct of_device_id __maybe_unused pwm_of_match[] = {
 	{ .compatible = "pwm-regulator" },
 	{ },
 };