mfd: motorola-cpcap: Add audio-codec support

Add support for the audio-codec node by converting from
devm_of_platform_populate() to devm_mfd_add_devices().

Tested-by: Pavel Machek <[e-mail]>
Acked-by: Tony Lindgren <[e-mail]>
Signed-off-by: Sebastian Reichel <[e-mail]>
Signed-off-by: Pavel Machek <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>

drivers/mfd/motorola-cpcap.c

···
 #include <linux/regmap.h>
 #include <linux/sysfs.h>
 
+#include <linux/mfd/core.h>
 #include <linux/mfd/motorola-cpcap.h>
 #include <linux/spi/spi.h>
 
···
 	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
+static const struct mfd_cell cpcap_mfd_devices[] = {
+	{
+		.name          = "cpcap_adc",
+		.of_compatible = "motorola,mapphone-cpcap-adc",
+	}, {
+		.name          = "cpcap_battery",
+		.of_compatible = "motorola,cpcap-battery",
+	}, {
+		.name          = "cpcap-charger",
+		.of_compatible = "motorola,mapphone-cpcap-charger",
+	}, {
+		.name          = "cpcap-regulator",
+		.of_compatible = "motorola,mapphone-cpcap-regulator",
+	}, {
+		.name          = "cpcap-rtc",
+		.of_compatible = "motorola,cpcap-rtc",
+	}, {
+		.name          = "cpcap-pwrbutton",
+		.of_compatible = "motorola,cpcap-pwrbutton",
+	}, {
+		.name          = "cpcap-usb-phy",
+		.of_compatible = "motorola,mapphone-cpcap-usb-phy",
+	}, {
+		.name          = "cpcap-led",
+		.id            = 0,
+		.of_compatible = "motorola,cpcap-led-red",
+	}, {
+		.name          = "cpcap-led",
+		.id            = 1,
+		.of_compatible = "motorola,cpcap-led-green",
+	}, {
+		.name          = "cpcap-led",
+		.id            = 2,
+		.of_compatible = "motorola,cpcap-led-blue",
+	}, {
+		.name          = "cpcap-led",
+		.id            = 3,
+		.of_compatible = "motorola,cpcap-led-adl",
+	}, {
+		.name          = "cpcap-led",
+		.id            = 4,
+		.of_compatible = "motorola,cpcap-led-cp",
+	}, {
+		.name          = "cpcap-codec",
+	}
+};
+
 static int cpcap_probe(struct spi_device *spi)
 {
 	const struct of_device_id *match;
···
 	if (ret)
 		return ret;
 
-	return devm_of_platform_populate(&cpcap->spi->dev);
+	return devm_mfd_add_devices(&spi->dev, 0, cpcap_mfd_devices,
+				    ARRAY_SIZE(cpcap_mfd_devices), NULL, 0, NULL);
 }
 
 static struct spi_driver cpcap_driver = {