[PATCH v3 net-next 8/8] mfd: zl3073x: Register DPLL sub-device during init

[Ivan Vecera]

Register DPLL sub-devices to expose this functionality provided
by ZL3073x chip family. Each sub-device represents one of the provided
DPLL channels.

Signed-off-by: Ivan Vecera <ivecera@xxxxxxxxxx>
---
 drivers/mfd/zl3073x-core.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/mfd/zl3073x-core.c b/drivers/mfd/zl3073x-core.c
index 0bd31591245a2..fda77724a8452 100644
--- a/drivers/mfd/zl3073x-core.c
+++ b/drivers/mfd/zl3073x-core.c
@@ -6,6 +6,7 @@
 #include <linux/device.h>
 #include <linux/export.h>
 #include <linux/math64.h>
+#include <linux/mfd/core.h>
 #include <linux/mfd/zl3073x.h>
 #include <linux/mfd/zl3073x_regs.h>
 #include <linux/module.h>
@@ -774,6 +775,20 @@ int zl3073x_dev_probe(struct zl3073x_dev *zldev,
 	if (rc)
 		return rc;
 
+	/* Add DPLL sub-device cell for each DPLL channel */
+	for (i = 0; i < chip_info->num_channels; i++) {
+		struct mfd_cell dpll_dev = MFD_CELL_BASIC("zl3073x-dpll", NULL,
+							  NULL, 0, i);
+
+		rc = devm_mfd_add_devices(zldev->dev, PLATFORM_DEVID_AUTO,
+					  &dpll_dev, 1, NULL, 0, NULL);
+		if (rc) {
+			dev_err_probe(zldev->dev, rc,
+				      "Failed to add DPLL sub-device\n");
+			return rc;
+		}
+	}
+
 	/* Register the device as devlink device */
 	devlink = priv_to_devlink(zldev);
 	devlink_register(devlink);
-- 
2.48.1