From ac6324e7021dfa917ce4f9a836318c3e46fbb84e Mon Sep 17 00:00:00 2001 From: Pali Rohár Date: Sun, 10 Feb 2013 18:32:18 +0100 Subject: bq2415x_charger: Add support for offline and 100mA mode MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * Renamed mode BQ2415X_MODE_NONE to BQ2415X_MODE_OFF because this mode turning chaging completly off * Added new mode BQ2415X_MODE_NONE which enable charging with maximal current limit 100mA (this is minimal safe value for bq2415x chips) Signed-off-by: Pali Rohár Signed-off-by: Anton Vorontsov --- drivers/power/bq2415x_charger.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) (limited to 'drivers/power') diff --git a/drivers/power/bq2415x_charger.c b/drivers/power/bq2415x_charger.c index ca70365e9410..ca91396fc48e 100644 --- a/drivers/power/bq2415x_charger.c +++ b/drivers/power/bq2415x_charger.c @@ -733,12 +733,10 @@ static int bq2415x_set_mode(struct bq2415x_device *bq, enum bq2415x_mode mode) int charger = 0; int boost = 0; - if (mode == BQ2415X_MODE_HOST_CHARGER || - mode == BQ2415X_MODE_DEDICATED_CHARGER) - charger = 1; - if (mode == BQ2415X_MODE_BOOST) boost = 1; + else if (mode != BQ2415X_MODE_OFF) + charger = 1; if (!charger) ret = bq2415x_exec_command(bq, BQ2415X_CHARGER_DISABLE); @@ -750,6 +748,10 @@ static int bq2415x_set_mode(struct bq2415x_device *bq, enum bq2415x_mode mode) return ret; switch (mode) { + case BQ2415X_MODE_OFF: + dev_dbg(bq->dev, "changing mode to: Offline\n"); + ret = bq2415x_set_current_limit(bq, 100); + break; case BQ2415X_MODE_NONE: dev_dbg(bq->dev, "changing mode to: N/A\n"); ret = bq2415x_set_current_limit(bq, 100); @@ -842,7 +844,7 @@ static void bq2415x_timer_error(struct bq2415x_device *bq, const char *msg) dev_err(bq->dev, "%s\n", msg); if (bq->automode > 0) bq->automode = 0; - bq2415x_set_mode(bq, BQ2415X_MODE_NONE); + bq2415x_set_mode(bq, BQ2415X_MODE_OFF); bq2415x_set_autotimer(bq, 0); } @@ -1135,6 +1137,10 @@ static ssize_t bq2415x_sysfs_set_mode(struct device *dev, return -ENOSYS; bq->automode = 1; mode = bq->reported_mode; + } else if (strncmp(buf, "off", 3) == 0) { + if (bq->automode > 0) + bq->automode = 0; + mode = BQ2415X_MODE_OFF; } else if (strncmp(buf, "none", 4) == 0) { if (bq->automode > 0) bq->automode = 0; @@ -1182,6 +1188,9 @@ static ssize_t bq2415x_sysfs_show_mode(struct device *dev, ret += sprintf(buf+ret, "auto ("); switch (bq->mode) { + case BQ2415X_MODE_OFF: + ret += sprintf(buf+ret, "off"); + break; case BQ2415X_MODE_NONE: ret += sprintf(buf+ret, "none"); break; @@ -1216,6 +1225,8 @@ static ssize_t bq2415x_sysfs_show_reported_mode(struct device *dev, return -EINVAL; switch (bq->reported_mode) { + case BQ2415X_MODE_OFF: + return sprintf(buf, "off\n"); case BQ2415X_MODE_NONE: return sprintf(buf, "none\n"); case BQ2415X_MODE_HOST_CHARGER: @@ -1535,8 +1546,8 @@ static int bq2415x_probe(struct i2c_client *client, bq->dev = &client->dev; bq->chip = id->driver_data; bq->name = name; - bq->mode = BQ2415X_MODE_NONE; - bq->reported_mode = BQ2415X_MODE_NONE; + bq->mode = BQ2415X_MODE_OFF; + bq->reported_mode = BQ2415X_MODE_OFF; bq->autotimer = 0; bq->automode = 0; -- cgit v1.2.3