[PATCH 7/7] power: supply: core: convert to fwnnode

Sebastian Reichel
2025-02-24T23:22:02Z

Replace any DT specific code with fwnode in the power-supply
core.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
drivers/power/supply/bq2415x_charger.c | 2 +-
drivers/power/supply/power_supply_core.c | 65 ++++++++++++++++----------------
include/linux/power_supply.h | 2 +-
3 files changed, 34 insertions(+), 35 deletions(-)

diff --git a/drivers/power/supply/bq2415x_charger.c b/drivers/power/supply/bq2415x_charger.c
index 9e3b9181ee76a4f473228bba022917677acce256..1ecbca510bba99ee7abcda33a719035adfceeb5f 100644
--- a/drivers/power/supply/bq2415x_charger.c
+++ b/drivers/power/supply/bq2415x_charger.c
@@ -1674,7 +1674,7 @@ static int bq2415x_probe(struct i2c_client *client)
/* Query for initial reported_mode and set it */
if (bq->nb.notifier_call) {
if (np) {
- notify_psy = power_supply_get_by_phandle(np,
+ notify_psy = power_supply_get_by_phandle(of_fwnode_handle(np),
"ti,usb-charger-detection");
if (IS_ERR(notify_psy))
notify_psy = NULL;
diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c
index 0e5fa16fd8f832414f34fae31086128928fa57cc..a01e6e1815da2ac70ce93d8bd5d06517a0eb1082 100644
--- a/drivers/power/supply/power_supply_core.c
+++ b/drivers/power/supply/power_supply_core.c
@@ -18,7 +18,6 @@
#include <linux/device.h>
#include <linux/notifier.h>
#include <linux/err.h>
-#include <linux/of.h>
#include <linux/power_supply.h>
#include <linux/property.h>
#include <linux/thermal.h>
@@ -196,24 +195,24 @@ static int __power_supply_populate_supplied_from(struct power_supply *epsy,
void *data)
{
struct power_supply *psy = data;
- struct device_node *np;
+ struct fwnode_handle *np;
int i = 0;

do {
- np = of_parse_phandle(psy->dev.of_node, "power-supplies", i++);
- if (!np)
+ np = fwnode_find_reference(psy->dev.fwnode, "power-supplies", i++);
+ if (IS_ERR(np))
break;

- if (np == epsy->dev.of_node) {
+ if (np == epsy->dev.fwnode) {
dev_dbg(&psy->dev, "%s: Found supply : %s\n",
psy->desc->name, epsy->desc->name);
psy->supplied_from[i-1] = (char *)epsy->desc->name;
psy->num_supplies++;
- of_node_put(np);
+ fwnode_handle_put(np);
break;
}
- of_node_put(np);
- } while (np);
+ fwnode_handle_put(np);
+ } while (!IS_ERR(np));

return 0;
}
@@ -232,16 +231,16 @@ static int power_supply_populate_supplied_from(struct power_supply *psy)
static int __power_supply_find_supply_from_node(struct power_supply *epsy,
void *data)
{
- struct device_node *np = data;
+ struct fwnode_handle *fwnode = data;

/* returning non-zero breaks out of power_supply_for_each_psy loop */
- if (epsy->dev.of_node == np)
+ if (epsy->dev.fwnode == fwnode)
return 1;

return 0;
}

-static int power_supply_find_supply_from_node(struct device_node *supply_node)
+static int power_supply_find_supply_from_fwnode(struct fwnode_handle *supply_node)
{
int error;

@@ -249,7 +248,7 @@ static int power_supply_find_supply_from_node(struct device_node *supply_node)
* power_supply_for_each_psy() either returns its own errors or values
* returned by __power_supply_find_supply_from_node().
*
- * __power_supply_find_supply_from_node() will return 0 (no match)
+ * __power_supply_find_supply_from_fwnode() will return 0 (no match)
* or 1 (match).
*
* We return 0 if power_supply_for_each_psy() returned 1, -EPROBE_DEFER if
@@ -262,7 +261,7 @@ static int power_supply_find_supply_from_node(struct device_node *supply_node)

static int power_supply_check_supplies(struct power_supply *psy)
{
- struct device_node *np;
+ struct fwnode_handle *np;
int cnt = 0;

/* If there is already a list honor it */
@@ -270,24 +269,24 @@ static int power_supply_check_supplies(struct power_supply *psy)
return 0;

/* No device node found, nothing to do */
- if (!psy->dev.of_node)
+ if (!psy->dev.fwnode)
return 0;

do {
int ret;

- np = of_parse_phandle(psy->dev.of_node, "power-supplies", cnt++);
- if (!np)
+ np = fwnode_find_reference(psy->dev.fwnode, "power-supplies", cnt++);
+ if (IS_ERR(np))
break;

- ret = power_supply_find_supply_from_node(np);
- of_node_put(np);
+ ret = power_supply_find_supply_from_fwnode(np);
+ fwnode_handle_put(np);

if (ret) {
dev_dbg(&psy->dev, "Failed to find supply!\n");
return ret;
}
- } while (np);
+ } while (!IS_ERR(np));

/* Missing valid "power-supplies" entries */
if (cnt == 1)
@@ -511,14 +510,14 @@ void power_supply_put(struct power_supply *psy)
EXPORT_SYMBOL_GPL(power_supply_put);

#ifdef CONFIG_OF
-static int power_supply_match_device_node(struct device *dev, const void *data)
+static int power_supply_match_device_fwnode(struct device *dev, const void *data)
{
- return dev->parent && dev->parent->of_node == data;
+ return dev->parent && dev_fwnode(dev->parent) == data;
}

/**
* power_supply_get_by_phandle() - Search for a power supply and returns its ref
- * @np: Pointer to device node holding phandle property
+ * @fwnode: Pointer to fwnode holding phandle property
* @property: Name of property holding a power supply name
*
* If power supply was found, it increases reference count for the
@@ -528,21 +527,21 @@ static int power_supply_match_device_node(struct device *dev, const void *data)
* Return: On success returns a reference to a power supply with
* matching name equals to value under @property, NULL or ERR_PTR otherwise.
*/
-struct power_supply *power_supply_get_by_phandle(struct device_node *np,
- const char *property)
+struct power_supply *power_supply_get_by_phandle(struct fwnode_handle *fwnode,
+ const char *property)
{
- struct device_node *power_supply_np;
+ struct fwnode_handle *power_supply_fwnode;
struct power_supply *psy = NULL;
struct device *dev;

- power_supply_np = of_parse_phandle(np, property, 0);
- if (!power_supply_np)
- return ERR_PTR(-ENODEV);
+ power_supply_fwnode = fwnode_find_reference(fwnode, property, 0);
+ if (IS_ERR(power_supply_fwnode))
+ return ERR_CAST(power_supply_fwnode);

- dev = class_find_device(&power_supply_class, NULL, power_supply_np,
- power_supply_match_device_node);
+ dev = class_find_device(&power_supply_class, NULL, power_supply_fwnode,
+ power_supply_match_device_fwnode);

- of_node_put(power_supply_np);
+ fwnode_handle_put(power_supply_fwnode);

if (dev) {
psy = dev_to_psy(dev);
@@ -574,14 +573,14 @@ struct power_supply *devm_power_supply_get_by_phandle(struct device *dev,
{
struct power_supply **ptr, *psy;

- if (!dev->of_node)
+ if (!dev_fwnode(dev))
return ERR_PTR(-ENODEV);

ptr = devres_alloc(devm_power_supply_put, sizeof(*ptr), GFP_KERNEL);
if (!ptr)
return ERR_PTR(-ENOMEM);

- psy = power_supply_get_by_phandle(dev->of_node, property);
+ psy = power_supply_get_by_phandle(dev_fwnode(dev), property);
if (IS_ERR_OR_NULL(psy)) {
devres_free(ptr);
} else {
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index a785742f97721e7e70d0e4c17a1ded7b985acb6d..9afde8c04efc72691c81a373d8dd03477b4efd7e 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -805,7 +805,7 @@ static inline struct power_supply *power_supply_get_by_name(const char *name)
{ return NULL; }
#endif
#ifdef CONFIG_OF
-extern struct power_supply *power_supply_get_by_phandle(struct device_node *np,
+extern struct power_supply *power_supply_get_by_phandle(struct fwnode_handle *fwnode,
const char *property);
extern struct power_supply *devm_power_supply_get_by_phandle(
struct device *dev, const char *property);

--
2.47.2