Add a matching table for devicetree probing, and optionally set the module
parameter variables from DT properties.
Signed-off-by: Daniel Mack <daniel@xxxxxxxxxx>
---
drivers/power/supply/ds2760_battery.c | 29 ++++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/drivers/power/supply/ds2760_battery.c b/drivers/power/supply/ds2760_battery.c
index aa406a7c65a1..11bed88a89fa 100644
--- a/drivers/power/supply/ds2760_battery.c
+++ b/drivers/power/supply/ds2760_battery.c
@@ -29,6 +29,7 @@
#include <linux/power_supply.h>
#include <linux/suspend.h>
#include <linux/w1.h>
+#include <linux/of.h>
static unsigned int cache_time = 1000;
module_param(cache_time, uint, 0644);
@@ -705,6 +706,24 @@ static int w1_ds2760_add_slave(struct w1_slave *sl)
psy_cfg.drv_data = di;
+ if (dev->of_node) {
+ u32 tmp;
+
+ psy_cfg.of_node = dev->of_node;
+
+ if (!of_property_read_bool(dev->of_node, "maxim,pmod-enabled"))
+ pmod_enabled = true;
+
+ if (!of_property_read_u32(dev->of_node,
+ "maxim,cache-time-ms", &tmp))
+ cache_time = tmp;
+
+ if (!of_property_read_u32(dev->of_node,
+ "rated-capacity-microamp-hours",
+ &tmp))
+ rated_capacity = tmp / 10; /* property is in mAh */
+ }
+
di->charge_status = POWER_SUPPLY_STATUS_UNKNOWN;
sl->family_data = di;
@@ -719,7 +738,7 @@ static int w1_ds2760_add_slave(struct w1_slave *sl)
ds2760_battery_write_status(di, status);
- /* set rated capacity from module param */
+ /* set rated capacity from module param or device tree */
if (rated_capacity)
ds2760_battery_write_rated_capacity(di, rated_capacity);
@@ -769,6 +788,13 @@ static void w1_ds2760_remove_slave(struct w1_slave *sl)
power_supply_unregister(di->bat);
}
+#ifdef CONFIG_OF
+static const struct of_device_id w1_ds2760_of_ids[] = {
+ { .compatible = "maxim,ds2760" },
+ {}
+};
+#endif
+
static struct w1_family_ops w1_ds2760_fops = {
.add_slave = w1_ds2760_add_slave,
.remove_slave = w1_ds2760_remove_slave,
@@ -778,6 +804,7 @@ static struct w1_family_ops w1_ds2760_fops = {
static struct w1_family w1_ds2760_family = {
.fid = W1_FAMILY_DS2760,
.fops = &w1_ds2760_fops,
+ .of_match_table = of_match_ptr(w1_ds2760_of_ids),
};
module_w1_family(w1_ds2760_family);
--
2.17.1
--
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