diff options
| author | Daniel Mack <daniel@zonque.org> | 2018-07-06 08:35:52 +0300 |
|---|---|---|
| committer | Sebastian Reichel <sre@kernel.org> | 2018-07-11 19:09:09 +0300 |
| commit | efdafd6895b2c454f1791de32248725879ded090 (patch) | |
| tree | ebe2a973730eecb03ea0335f69c3a15825906f86 | |
| parent | bf49735537374c02fd4111bd5463e372f69c41f8 (diff) | |
| download | linux-efdafd6895b2c454f1791de32248725879ded090.tar.xz | |
power: supply: ds2760_battery: add devicetree probing
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>
| -rw-r--r-- | drivers/power/supply/ds2760_battery.c | 29 |
1 files changed, 28 insertions, 1 deletions
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); |