[PATCH 2/3] power: pmic: rk8xx: bind rk808 RTC
sunil at amarulasolutions.com
sunil at amarulasolutions.com
Wed Apr 22 18:11:40 CEST 2020
From: Suniel Mahesh <sunil at 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 <sunil at amarulasolutions.com>
---
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
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