Re: [PATCH 6/9] power_supply: wm97xx_battery: use power_supply_get_drvdata
From: Kevin Hilman <khilman@kernel.org>
Date: 2017-01-23 18:38:30
Also in:
alsa-devel, linux-arm-kernel, linux-pm, lkml
Hello, On Wed, Oct 26, 2016 at 12:41 PM, Robert Jarzmik [off-list ref] wrote:
As the power supply framework provides a way to store and retrieve private supply data, use it. In the process, change the platform data for wm97xx_battery from a container of a single struct wm97xx_batt_pdata to the direct point to wm97xx_batt_pdata. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
kernelci.org has been reporting that the tegra20-iris board has been failing in -next since next-20161123[1], and also in mainline v4.10-rc. I finally took the time to bisect, and it pointed to this patch. I verified that reverting $SUBJECT patch[2] on top of v4.10-rc5 fixes the problem. Kevin [1] https://kernelci.org/boot/id/5879a3fe59b5141534f6c3ac/ [2] in mainline as commit: 6480af4915d6 power_supply: wm97xx_battery: use power_supply_get_drvdata
quoted hunk ↗ jump to hunk
--- drivers/input/touchscreen/wm97xx-core.c | 2 +- drivers/power/supply/wm97xx_battery.c | 25 ++++++++++--------------- 2 files changed, 11 insertions(+), 16 deletions(-)diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c index 90d6be3c26cc..83cf11312fd9 100644 --- a/drivers/input/touchscreen/wm97xx-core.c +++ b/drivers/input/touchscreen/wm97xx-core.c@@ -682,7 +682,7 @@ static int wm97xx_probe(struct device *dev) } platform_set_drvdata(wm->battery_dev, wm); wm->battery_dev->dev.parent = dev; - wm->battery_dev->dev.platform_data = pdata; + wm->battery_dev->dev.platform_data = pdata->batt_pdata; ret = platform_device_add(wm->battery_dev); if (ret < 0) goto batt_reg_err;diff --git a/drivers/power/supply/wm97xx_battery.c b/drivers/power/supply/wm97xx_battery.c index 6285626d142a..e3edb31ac880 100644 --- a/drivers/power/supply/wm97xx_battery.c +++ b/drivers/power/supply/wm97xx_battery.c@@ -30,8 +30,7 @@ static enum power_supply_property *prop; static unsigned long wm97xx_read_bat(struct power_supply *bat_ps) { - struct wm97xx_pdata *wmdata = bat_ps->dev.parent->platform_data; - struct wm97xx_batt_pdata *pdata = wmdata->batt_pdata; + struct wm97xx_batt_pdata *pdata = power_supply_get_drvdata(bat_ps); return wm97xx_read_aux_adc(dev_get_drvdata(bat_ps->dev.parent), pdata->batt_aux) * pdata->batt_mult /@@ -40,8 +39,7 @@ static unsigned long wm97xx_read_bat(struct power_supply *bat_ps) static unsigned long wm97xx_read_temp(struct power_supply *bat_ps) { - struct wm97xx_pdata *wmdata = bat_ps->dev.parent->platform_data; - struct wm97xx_batt_pdata *pdata = wmdata->batt_pdata; + struct wm97xx_batt_pdata *pdata = power_supply_get_drvdata(bat_ps); return wm97xx_read_aux_adc(dev_get_drvdata(bat_ps->dev.parent), pdata->temp_aux) * pdata->temp_mult /@@ -52,8 +50,7 @@ static int wm97xx_bat_get_property(struct power_supply *bat_ps, enum power_supply_property psp, union power_supply_propval *val) { - struct wm97xx_pdata *wmdata = bat_ps->dev.parent->platform_data; - struct wm97xx_batt_pdata *pdata = wmdata->batt_pdata; + struct wm97xx_batt_pdata *pdata = power_supply_get_drvdata(bat_ps); switch (psp) { case POWER_SUPPLY_PROP_STATUS:@@ -103,8 +100,7 @@ static void wm97xx_bat_external_power_changed(struct power_supply *bat_ps) static void wm97xx_bat_update(struct power_supply *bat_ps) { int old_status = bat_status; - struct wm97xx_pdata *wmdata = bat_ps->dev.parent->platform_data; - struct wm97xx_batt_pdata *pdata = wmdata->batt_pdata; + struct wm97xx_batt_pdata *pdata = power_supply_get_drvdata(bat_ps); mutex_lock(&work_lock);@@ -166,15 +162,15 @@ static int wm97xx_bat_probe(struct platform_device *dev) int ret = 0; int props = 1; /* POWER_SUPPLY_PROP_PRESENT */ int i = 0; - struct wm97xx_pdata *wmdata = dev->dev.platform_data; - struct wm97xx_batt_pdata *pdata; + struct wm97xx_batt_pdata *pdata = dev->dev.platform_data; + struct power_supply_config cfg = {}; - if (!wmdata) { + if (!pdata) { dev_err(&dev->dev, "No platform data supplied\n"); return -EINVAL; } - pdata = wmdata->batt_pdata; + cfg.drv_data = pdata; if (dev->id != -1) return -EINVAL;@@ -243,7 +239,7 @@ static int wm97xx_bat_probe(struct platform_device *dev) bat_psy_desc.properties = prop; bat_psy_desc.num_properties = props; - bat_psy = power_supply_register(&dev->dev, &bat_psy_desc, NULL); + bat_psy = power_supply_register(&dev->dev, &bat_psy_desc, &cfg); if (!IS_ERR(bat_psy)) { schedule_work(&bat_work); } else {@@ -266,8 +262,7 @@ static int wm97xx_bat_probe(struct platform_device *dev) static int wm97xx_bat_remove(struct platform_device *dev) { - struct wm97xx_pdata *wmdata = dev->dev.platform_data; - struct wm97xx_batt_pdata *pdata = wmdata->batt_pdata; + struct wm97xx_batt_pdata *pdata = dev->dev.platform_data; if (pdata && gpio_is_valid(pdata->charge_gpio)) { free_irq(gpio_to_irq(pdata->charge_gpio), dev); --2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-pm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html