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power: supply: ds2760_battery: add devicetree probing

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Add a matching table for devicetree probing, and optionally set the module
parameter variables from DT properties.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
This commit is contained in:
Daniel Mack 2018-07-06 07:35:52 +02:00 committed by Sebastian Reichel
parent bf49735537
commit efdafd6895
1 changed files with 28 additions and 1 deletions
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29
drivers/power/supply/ds2760_battery.c
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@ -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);