power: pmic: s2mps11: probe the regulator driver

Add the probe function to support the s2mps11 regulator driver.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Anand Moon <linux.amoon@gmail.com>

diff --git a/drivers/power/pmic/s2mps11.c b/drivers/power/pmic/s2mps11.c
index 522105e5ff05a0e9a14b2f31c75abd47bf4f9e0f..3f9525b67d6ba34063156442278b6de09369db3a 100644 (file)
--- a/drivers/power/pmic/s2mps11.c
+++ b/drivers/power/pmic/s2mps11.c
@@ -15,6 +15,12 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+static const struct pmic_child_info pmic_children_info[] = {
+       { .prefix = S2MPS11_OF_LDO_PREFIX, .driver = S2MPS11_LDO_DRIVER },
+       { .prefix = S2MPS11_OF_BUCK_PREFIX, .driver = S2MPS11_BUCK_DRIVER },
+       { },
+};
+
 static int s2mps11_reg_count(struct udevice *dev)
 {
        return S2MPS11_REG_COUNT;
@@ -43,6 +49,27 @@ static int s2mps11_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
        return ret;
 }
 
+static int s2mps11_probe(struct udevice *dev)
+{
+       ofnode regulators_node;
+       int children;
+
+       regulators_node = dev_read_subnode(dev, "voltage-regulators");
+       if (!ofnode_valid(regulators_node)) {
+               debug("%s: %s regulators subnode not found!", __func__,
+                                                            dev->name);
+               return -ENXIO;
+       }
+
+       debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
+
+       children = pmic_bind_children(dev, regulators_node, pmic_children_info);
+       if (!children)
+               debug("%s: %s - no child found\n", __func__, dev->name);
+
+       return 0;
+}
+
 static struct dm_pmic_ops s2mps11_ops = {
        .reg_count = s2mps11_reg_count,
        .read = s2mps11_read,
@@ -59,4 +86,5 @@ U_BOOT_DRIVER(pmic_s2mps11) = {
        .id = UCLASS_PMIC,
        .of_match = s2mps11_ids,
        .ops = &s2mps11_ops,
+       .probe = s2mps11_probe,
 };