charger-manager: Support deivce tree in charger manager driver
Charger-manager can parse charger_desc data from devicetree which is used
to register charger manager.
Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c
index 6b68d15..ec5c140 100644
--- a/drivers/power/charger-manager.c
+++ b/drivers/power/charger-manager.c
@@ -25,6 +25,7 @@
#include <linux/power/charger-manager.h>
#include <linux/regulator/consumer.h>
#include <linux/sysfs.h>
+#include <linux/of.h>
#include <linux/thermal.h>
/*
@@ -528,7 +529,7 @@
duration = curr - cm->charging_start_time;
if (duration > desc->charging_max_duration_ms) {
- dev_info(cm->dev, "Charging duration exceed %lldms\n",
+ dev_info(cm->dev, "Charging duration exceed %ums\n",
desc->charging_max_duration_ms);
uevent_notify(cm, "Discharging");
try_charger_enable(cm, false);
@@ -539,7 +540,7 @@
if (duration > desc->charging_max_duration_ms &&
is_ext_pwr_online(cm)) {
- dev_info(cm->dev, "Discharging duration exceed %lldms\n",
+ dev_info(cm->dev, "Discharging duration exceed %ums\n",
desc->discharging_max_duration_ms);
uevent_notify(cm, "Recharging");
try_charger_enable(cm, true);
@@ -1528,9 +1529,139 @@
return ret;
}
+static struct of_device_id charger_manager_match[] = {
+ {
+ .compatible = "charger-manager",
+ },
+ {},
+};
+
+struct charger_desc *of_cm_parse_desc(struct device *dev)
+{
+ struct charger_desc *desc;
+ struct device_node *np = dev->of_node;
+ u32 poll_mode = CM_POLL_DISABLE;
+ u32 battery_stat = CM_NO_BATTERY;
+ int num_chgs = 0;
+
+ desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
+ if (!desc)
+ return ERR_PTR(-ENOMEM);
+
+ of_property_read_string(np, "cm-name", &desc->psy_name);
+
+ of_property_read_u32(np, "cm-poll-mode", &poll_mode);
+ desc->polling_mode = poll_mode;
+
+ of_property_read_u32(np, "cm-poll-interval",
+ &desc->polling_interval_ms);
+
+ of_property_read_u32(np, "cm-fullbatt-vchkdrop-ms",
+ &desc->fullbatt_vchkdrop_ms);
+ of_property_read_u32(np, "cm-fullbatt-vchkdrop-volt",
+ &desc->fullbatt_vchkdrop_uV);
+ of_property_read_u32(np, "cm-fullbatt-voltage", &desc->fullbatt_uV);
+ of_property_read_u32(np, "cm-fullbatt-soc", &desc->fullbatt_soc);
+ of_property_read_u32(np, "cm-fullbatt-capacity",
+ &desc->fullbatt_full_capacity);
+
+ of_property_read_u32(np, "cm-battery-stat", &battery_stat);
+ desc->battery_present = battery_stat;
+
+ /* chargers */
+ of_property_read_u32(np, "cm-num-chargers", &num_chgs);
+ if (num_chgs) {
+ /* Allocate empty bin at the tail of array */
+ desc->psy_charger_stat = devm_kzalloc(dev, sizeof(char *)
+ * (num_chgs + 1), GFP_KERNEL);
+ if (desc->psy_charger_stat) {
+ int i;
+ for (i = 0; i < num_chgs; i++)
+ of_property_read_string_index(np, "cm-chargers",
+ i, &desc->psy_charger_stat[i]);
+ } else {
+ return ERR_PTR(-ENOMEM);
+ }
+ }
+
+ of_property_read_string(np, "cm-fuel-gauge", &desc->psy_fuel_gauge);
+
+ of_property_read_string(np, "cm-thermal-zone", &desc->thermal_zone);
+
+ of_property_read_u32(np, "cm-battery-cold", &desc->temp_min);
+ if (of_get_property(np, "cm-battery-cold-in-minus", NULL))
+ desc->temp_min *= -1;
+ of_property_read_u32(np, "cm-battery-hot", &desc->temp_max);
+ of_property_read_u32(np, "cm-battery-temp-diff", &desc->temp_diff);
+
+ of_property_read_u32(np, "cm-charging-max",
+ &desc->charging_max_duration_ms);
+ of_property_read_u32(np, "cm-discharging-max",
+ &desc->discharging_max_duration_ms);
+
+ /* battery charger regualtors */
+ desc->num_charger_regulators = of_get_child_count(np);
+ if (desc->num_charger_regulators) {
+ struct charger_regulator *chg_regs;
+ struct device_node *child;
+
+ chg_regs = devm_kzalloc(dev, sizeof(*chg_regs)
+ * desc->num_charger_regulators,
+ GFP_KERNEL);
+ if (!chg_regs)
+ return ERR_PTR(-ENOMEM);
+
+ desc->charger_regulators = chg_regs;
+
+ for_each_child_of_node(np, child) {
+ struct charger_cable *cables;
+ struct device_node *_child;
+
+ of_property_read_string(child, "cm-regulator-name",
+ &chg_regs->regulator_name);
+
+ /* charger cables */
+ chg_regs->num_cables = of_get_child_count(child);
+ if (chg_regs->num_cables) {
+ cables = devm_kzalloc(dev, sizeof(*cables)
+ * chg_regs->num_cables,
+ GFP_KERNEL);
+ if (!cables)
+ return ERR_PTR(-ENOMEM);
+
+ chg_regs->cables = cables;
+
+ for_each_child_of_node(child, _child) {
+ of_property_read_string(_child,
+ "cm-cable-name", &cables->name);
+ of_property_read_string(_child,
+ "cm-cable-extcon",
+ &cables->extcon_name);
+ of_property_read_u32(_child,
+ "cm-cable-min",
+ &cables->min_uA);
+ of_property_read_u32(_child,
+ "cm-cable-max",
+ &cables->max_uA);
+ cables++;
+ }
+ }
+ chg_regs++;
+ }
+ }
+ return desc;
+}
+
+static inline struct charger_desc *cm_get_drv_data(struct platform_device *pdev)
+{
+ if (pdev->dev.of_node)
+ return of_cm_parse_desc(&pdev->dev);
+ return (struct charger_desc *)dev_get_platdata(&pdev->dev);
+}
+
static int charger_manager_probe(struct platform_device *pdev)
{
- struct charger_desc *desc = dev_get_platdata(&pdev->dev);
+ struct charger_desc *desc = cm_get_drv_data(pdev);
struct charger_manager *cm;
int ret = 0, i = 0;
int j = 0;
@@ -1887,6 +2018,7 @@
.name = "charger-manager",
.owner = THIS_MODULE,
.pm = &charger_manager_pm,
+ .of_match_table = charger_manager_match,
},
.probe = charger_manager_probe,
.remove = charger_manager_remove,
