[PATCH v2 2/4] power: pmic: rk8xx: bind rk808 RTC

[sunil]

From: Suniel Mahesh <su...@amarulasolutions.com>

RK808 PMIC is a multi functional device with an RTC. In order to access
RTC, bind to its parent device i.e. RK808 PMIC.

Signed-off-by: Suniel Mahesh <su...@amarulasolutions.com>
---
Changes for v2:
- no changes
---
 drivers/power/pmic/rk8xx.c | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/drivers/power/pmic/rk8xx.c b/drivers/power/pmic/rk8xx.c
index 52e6d9d..8d6b64e 100644
--- a/drivers/power/pmic/rk8xx.c
+++ b/drivers/power/pmic/rk8xx.c
@@ -24,6 +24,11 @@ static const struct pmic_child_info pmic_children_info[] = {
        { },
 };
 
+static const struct pmic_child_info rtc_info[] = {
+       { .prefix = "rk808-rtc", .driver = "rk808_rtc"},
+       { },
+};
+
 static int rk8xx_reg_count(struct udevice *dev)
 {
        return RK808_NUM_OF_REGS;
@@ -59,7 +64,7 @@ static int rk8xx_read(struct udevice *dev, uint reg, uint8_t 
*buff, int len)
 #if CONFIG_IS_ENABLED(PMIC_CHILDREN)
 static int rk8xx_bind(struct udevice *dev)
 {
-       ofnode regulators_node;
+       ofnode regulators_node, rtc_node;
        int children;
 
        regulators_node = dev_read_subnode(dev, "regulators");
@@ -75,6 +80,18 @@ static int rk8xx_bind(struct udevice *dev)
        if (!children)
                debug("%s: %s - no child found\n", __func__, dev->name);
 
+       rtc_node = dev_read_subnode(dev, "rtc");
+       if (!ofnode_valid(rtc_node)) {
+               debug("%s: %s rtc subnode not found!\n", __func__, dev->name);
+               return -ENXIO;
+       }
+
+       debug("%s: '%s' - found rtc subnode\n", __func__, dev->name);
+
+       children = pmic_bind_children(dev, rtc_node, rtc_info);
+       if (!children)
+               debug("%s: %s - no child found\n", __func__, dev->name);
+
        /* Always return success for this device */
        return 0;
 }
-- 
2.7.4