From: Tony Lindgren Date: Wed, 8 Feb 2017 23:13:01 +0000 (-0800) Subject: power: bq24190_charger: Use PM runtime autosuspend X-Git-Tag: v4.12-rc1~7^2~61 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f385e6e2a153233033aa348766bac21125651d05;p=platform%2Fkernel%2Flinux-exynos.git power: bq24190_charger: Use PM runtime autosuspend We can get quite a few interrupts when the battery is trickle charging. Let's enable PM runtime autosuspend to avoid constantly toggling device driver PM runtime state. Let's use a 600 ms timeout as that's how long the USB chager detection might take. Acked-by: Mark Greer Acked-by: Liam Breck Signed-off-by: Tony Lindgren Signed-off-by: Sebastian Reichel --- diff --git a/drivers/power/supply/bq24190_charger.c b/drivers/power/supply/bq24190_charger.c index deb56f3..6d80670 100644 --- a/drivers/power/supply/bq24190_charger.c +++ b/drivers/power/supply/bq24190_charger.c @@ -420,6 +420,7 @@ static ssize_t bq24190_sysfs_show(struct device *dev, struct power_supply *psy = dev_get_drvdata(dev); struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy); struct bq24190_sysfs_field_info *info; + ssize_t count; int ret; u8 v; @@ -427,11 +428,20 @@ static ssize_t bq24190_sysfs_show(struct device *dev, if (!info) return -EINVAL; + ret = pm_runtime_get_sync(bdi->dev); + if (ret < 0) + return ret; + ret = bq24190_read_mask(bdi, info->reg, info->mask, info->shift, &v); if (ret) - return ret; + count = ret; + else + count = scnprintf(buf, PAGE_SIZE, "%hhx\n", v); - return scnprintf(buf, PAGE_SIZE, "%hhx\n", v); + pm_runtime_mark_last_busy(bdi->dev); + pm_runtime_put_autosuspend(bdi->dev); + + return count; } static ssize_t bq24190_sysfs_store(struct device *dev, @@ -451,9 +461,16 @@ static ssize_t bq24190_sysfs_store(struct device *dev, if (ret < 0) return ret; + ret = pm_runtime_get_sync(bdi->dev); + if (ret < 0) + return ret; + ret = bq24190_write_mask(bdi, info->reg, info->mask, info->shift, v); if (ret) - return ret; + count = ret; + + pm_runtime_mark_last_busy(bdi->dev); + pm_runtime_put_autosuspend(bdi->dev); return count; } @@ -795,7 +812,9 @@ static int bq24190_charger_get_property(struct power_supply *psy, dev_dbg(bdi->dev, "prop: %d\n", psp); - pm_runtime_get_sync(bdi->dev); + ret = pm_runtime_get_sync(bdi->dev); + if (ret < 0) + return ret; switch (psp) { case POWER_SUPPLY_PROP_CHARGE_TYPE: @@ -835,7 +854,9 @@ static int bq24190_charger_get_property(struct power_supply *psy, ret = -ENODATA; } - pm_runtime_put_sync(bdi->dev); + pm_runtime_mark_last_busy(bdi->dev); + pm_runtime_put_autosuspend(bdi->dev); + return ret; } @@ -848,7 +869,9 @@ static int bq24190_charger_set_property(struct power_supply *psy, dev_dbg(bdi->dev, "prop: %d\n", psp); - pm_runtime_get_sync(bdi->dev); + ret = pm_runtime_get_sync(bdi->dev); + if (ret < 0) + return ret; switch (psp) { case POWER_SUPPLY_PROP_CHARGE_TYPE: @@ -864,7 +887,9 @@ static int bq24190_charger_set_property(struct power_supply *psy, ret = -EINVAL; } - pm_runtime_put_sync(bdi->dev); + pm_runtime_mark_last_busy(bdi->dev); + pm_runtime_put_autosuspend(bdi->dev); + return ret; } @@ -1065,7 +1090,9 @@ static int bq24190_battery_get_property(struct power_supply *psy, dev_dbg(bdi->dev, "prop: %d\n", psp); - pm_runtime_get_sync(bdi->dev); + ret = pm_runtime_get_sync(bdi->dev); + if (ret < 0) + return ret; switch (psp) { case POWER_SUPPLY_PROP_STATUS: @@ -1093,7 +1120,9 @@ static int bq24190_battery_get_property(struct power_supply *psy, ret = -ENODATA; } - pm_runtime_put_sync(bdi->dev); + pm_runtime_mark_last_busy(bdi->dev); + pm_runtime_put_autosuspend(bdi->dev); + return ret; } @@ -1106,7 +1135,9 @@ static int bq24190_battery_set_property(struct power_supply *psy, dev_dbg(bdi->dev, "prop: %d\n", psp); - pm_runtime_get_sync(bdi->dev); + ret = pm_runtime_get_sync(bdi->dev); + if (ret < 0) + return ret; switch (psp) { case POWER_SUPPLY_PROP_ONLINE: @@ -1119,7 +1150,9 @@ static int bq24190_battery_set_property(struct power_supply *psy, ret = -EINVAL; } - pm_runtime_put_sync(bdi->dev); + pm_runtime_mark_last_busy(bdi->dev); + pm_runtime_put_autosuspend(bdi->dev); + return ret; } @@ -1234,11 +1267,17 @@ static void bq24190_check_status(struct bq24190_dev_info *bdi) static irqreturn_t bq24190_irq_handler_thread(int irq, void *data) { struct bq24190_dev_info *bdi = data; + int ret; bdi->irq_event = true; - pm_runtime_get_sync(bdi->dev); + ret = pm_runtime_get_sync(bdi->dev); + if (ret < 0) { + dev_warn(bdi->dev, "pm_runtime_get failed: %i\n", ret); + return IRQ_NONE; + } bq24190_check_status(bdi); - pm_runtime_put_sync(bdi->dev); + pm_runtime_mark_last_busy(bdi->dev); + pm_runtime_put_autosuspend(bdi->dev); bdi->irq_event = false; return IRQ_HANDLED; @@ -1249,33 +1288,26 @@ static int bq24190_hw_init(struct bq24190_dev_info *bdi) u8 v; int ret; - pm_runtime_get_sync(bdi->dev); - /* First check that the device really is what its supposed to be */ ret = bq24190_read_mask(bdi, BQ24190_REG_VPRS, BQ24190_REG_VPRS_PN_MASK, BQ24190_REG_VPRS_PN_SHIFT, &v); if (ret < 0) - goto out; + return ret; - if (v != bdi->model) { - ret = -ENODEV; - goto out; - } + if (v != bdi->model) + return -ENODEV; ret = bq24190_register_reset(bdi); if (ret < 0) - goto out; + return ret; ret = bq24190_set_mode_host(bdi); if (ret < 0) - goto out; + return ret; - ret = bq24190_read(bdi, BQ24190_REG_SS, &bdi->ss_reg); -out: - pm_runtime_put_sync(bdi->dev); - return ret; + return bq24190_read(bdi, BQ24190_REG_SS, &bdi->ss_reg); } #ifdef CONFIG_OF @@ -1364,12 +1396,16 @@ static int bq24190_probe(struct i2c_client *client, } pm_runtime_enable(dev); - pm_runtime_resume(dev); + pm_runtime_use_autosuspend(dev); + pm_runtime_set_autosuspend_delay(dev, 600); + ret = pm_runtime_get_sync(dev); + if (ret < 0) + goto out1; ret = bq24190_hw_init(bdi); if (ret < 0) { dev_err(dev, "Hardware init failed\n"); - goto out1; + goto out2; } charger_cfg.drv_data = bdi; @@ -1380,7 +1416,7 @@ static int bq24190_probe(struct i2c_client *client, if (IS_ERR(bdi->charger)) { dev_err(dev, "Can't register charger\n"); ret = PTR_ERR(bdi->charger); - goto out1; + goto out2; } battery_cfg.drv_data = bdi; @@ -1389,13 +1425,13 @@ static int bq24190_probe(struct i2c_client *client, if (IS_ERR(bdi->battery)) { dev_err(dev, "Can't register battery\n"); ret = PTR_ERR(bdi->battery); - goto out2; + goto out3; } ret = bq24190_sysfs_create_group(bdi); if (ret) { dev_err(dev, "Can't create sysfs entries\n"); - goto out3; + goto out4; } bdi->initialized = true; @@ -1406,21 +1442,30 @@ static int bq24190_probe(struct i2c_client *client, "bq24190-charger", bdi); if (ret < 0) { dev_err(dev, "Can't set up irq handler\n"); - goto out4; + goto out5; } + enable_irq_wake(bdi->irq); + + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); + return 0; -out4: +out5: bq24190_sysfs_remove_group(bdi); -out3: +out4: power_supply_unregister(bdi->battery); -out2: +out3: power_supply_unregister(bdi->charger); +out2: + pm_runtime_put_sync(dev); + out1: + pm_runtime_dont_use_autosuspend(dev); pm_runtime_disable(dev); if (bdi->gpio_int) gpio_free(bdi->gpio_int); @@ -1430,14 +1475,21 @@ out1: static int bq24190_remove(struct i2c_client *client) { struct bq24190_dev_info *bdi = i2c_get_clientdata(client); + int error; - pm_runtime_get_sync(bdi->dev); - bq24190_register_reset(bdi); - pm_runtime_put_sync(bdi->dev); + error = pm_runtime_get_sync(bdi->dev); + if (error < 0) { + dev_warn(bdi->dev, "pm_runtime_get failed: %i\n", error); + pm_runtime_put_noidle(bdi->dev); + } + bq24190_register_reset(bdi); bq24190_sysfs_remove_group(bdi); power_supply_unregister(bdi->battery); power_supply_unregister(bdi->charger); + if (error >= 0) + pm_runtime_put_sync(bdi->dev); + pm_runtime_dont_use_autosuspend(bdi->dev); pm_runtime_disable(bdi->dev); if (bdi->gpio_int) @@ -1480,10 +1532,20 @@ static int bq24190_pm_suspend(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct bq24190_dev_info *bdi = i2c_get_clientdata(client); + int error; + + error = pm_runtime_get_sync(bdi->dev); + if (error < 0) { + dev_warn(bdi->dev, "pm_runtime_get failed: %i\n", error); + pm_runtime_put_noidle(bdi->dev); + } - pm_runtime_get_sync(bdi->dev); bq24190_register_reset(bdi); - pm_runtime_put_sync(bdi->dev); + + if (error >= 0) { + pm_runtime_mark_last_busy(bdi->dev); + pm_runtime_put_autosuspend(bdi->dev); + } return 0; } @@ -1492,15 +1554,25 @@ static int bq24190_pm_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct bq24190_dev_info *bdi = i2c_get_clientdata(client); + int error; bdi->f_reg = 0; bdi->ss_reg = BQ24190_REG_SS_VBUS_STAT_MASK; /* impossible state */ - pm_runtime_get_sync(bdi->dev); + error = pm_runtime_get_sync(bdi->dev); + if (error < 0) { + dev_warn(bdi->dev, "pm_runtime_get failed: %i\n", error); + pm_runtime_put_noidle(bdi->dev); + } + bq24190_register_reset(bdi); bq24190_set_mode_host(bdi); bq24190_read(bdi, BQ24190_REG_SS, &bdi->ss_reg); - pm_runtime_put_sync(bdi->dev); + + if (error >= 0) { + pm_runtime_mark_last_busy(bdi->dev); + pm_runtime_put_autosuspend(bdi->dev); + } /* Things may have changed while suspended so alert upper layer */ power_supply_changed(bdi->charger);