Signed-off-by: Juergen Borleis <[email protected]>
---
drivers/power/bq27x00_battery.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
index 58644de..39b5194 100644
--- a/drivers/power/bq27x00_battery.c
+++ b/drivers/power/bq27x00_battery.c
@@ -72,6 +72,7 @@
/* bq27425 control commands */
#define BQ27425_CONTROL 0x00
+# define BQ27425_DEVICE_TYPE 0x0001
/* bq27425 register addresses are same as bq27x00 addresses minus 4 */
#define BQ27425_REG_OFFSET 0x04
@@ -87,6 +88,7 @@ struct bq27x00_access_methods {
};
enum bq27x00_chip { BQ27000, BQ27500, BQ27425};
+enum bq27425_chip_type { BQ27425_unknown, BQ27425_g1, BQ27425_g2a};
struct bq27x00_reg_cache {
int temperature;
@@ -106,6 +108,7 @@ struct bq27x00_device_info {
struct device *dev;
int id;
enum bq27x00_chip chip;
+ enum bq27425_chip_type chip_type;
struct bq27x00_reg_cache cache;
int charge_design_full;
@@ -698,6 +701,28 @@ static int bq27x00_powersupply_init(struct
bq27x00_device_info *di)
{
int ret;
+ if (di->chip == BQ27425) {
+ /* detect chip type */
+ ret = di->bus.reads(di, BQ27425_DEVICE_TYPE);
+ if (ret < 0) {
+ dev_err(di->dev, "Fail to detect BQ27425's type\n");
+ /* try to continue */
+ } else {
+ switch (ret) {
+ case 0x0410:
+ di->chip_type = BQ27425_g1;
+ break;
+ case 0x0425:
+ di->chip_type = BQ27425_g2a;
+ break;
+ default:
+ dev_err(di->dev, "Unknown BQ27425 type: "
+ "%04X\n", ret);
+ /* try to continue */
+ }
+ }
+ }
+
di->bat.type = POWER_SUPPLY_TYPE_BATTERY;
if (di->chip == BQ27425) {
di->bat.properties = bq27425_battery_props;
--
2.0.0.rc2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
