regulator: cpcap: Add OF mode mapping

Add device tree mode mapping capabilities to the cpcap driver.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/cpcap-regulator.c

@@ -123,6 +123,7 @@ struct cpcap_regulator {
 		.enable_val = (mode_val),				\
 		.disable_val = (off_val),				\
 		.ramp_delay = (volt_trans_time),			\
+		.of_map_mode = cpcap_map_mode,				\
 	},								\
 	.assign_reg = (assignment_reg),					\
 	.assign_mask = (assignment_mask),				\
@@ -213,6 +214,18 @@ static int cpcap_regulator_disable(struct regulator_dev *rdev)
 	return error;
 }
 
+static unsigned int cpcap_map_mode(unsigned int mode)
+{
+	switch (mode) {
+	case CPCAP_BIT_AUDIO_NORMAL_MODE:
+		return REGULATOR_MODE_NORMAL;
+	case CPCAP_BIT_AUDIO_LOW_PWR:
+		return REGULATOR_MODE_STANDBY;
+	default:
+		return -EINVAL;
+	}
+}
+
 static unsigned int cpcap_regulator_get_mode(struct regulator_dev *rdev)
 {
 	int value;