On Tue, Nov 06, 2012 at 03:42:44PM +0800, Qing Xu wrote: > From: Qing Xu <qi...@marvell.com> > > Signed-off-by: Qing Xu <qi...@marvell.com> > ---
W/ this patch I'm getting this warning: CC drivers/power/max8925_power.o drivers/power/max8925_power.c: In function ‘max8925_power_probe’: drivers/power/max8925_power.c:479:3: warning: statement with no effect [-Wunused-value] > drivers/power/max8925_power.c | 57 ++++++++++++++++++++++++++++++++++++---- > 1 files changed, 51 insertions(+), 6 deletions(-) > > diff --git a/drivers/power/max8925_power.c b/drivers/power/max8925_power.c > index daa333b..dd2ac2d 100644 > --- a/drivers/power/max8925_power.c > +++ b/drivers/power/max8925_power.c > @@ -426,14 +426,58 @@ static __devexit int max8925_deinit_charger(struct > max8925_power_info *info) > return 0; > } > > +#ifdef CONFIG_OF > +static int max8925_power_dt_init(struct platform_device *pdev, > + struct max8925_power_pdata *pdata) > +{ > + struct device_node *nproot = pdev->dev.parent->of_node, *np; > + int batt_detect, topoff_threshold, fast_charge, > + no_temp_support, no_insert_detect; One variable declaration per line please. > + > + if (!nproot) > + return -ENODEV; Please add an empty line here. > + np = of_find_node_by_name(nproot, "charger"); > + if (!np) { > + dev_err(&pdev->dev, "failed to find charger node\n"); > + return -ENODEV; > + } ditto. > + of_property_read_u32(np, "topoff-threshold", &topoff_threshold); > + of_property_read_u32(np, "batt-detect", &batt_detect); > + of_property_read_u32(np, "fast-charge", &fast_charge); > + of_property_read_u32(np, "no-insert-detect", &no_insert_detect); > + of_property_read_u32(np, "no-temp-support", &no_temp_support); > + > + pdata->batt_detect = batt_detect; > + pdata->fast_charge = fast_charge; > + pdata->topoff_threshold = topoff_threshold; > + pdata->no_insert_detect = no_insert_detect; > + pdata->no_temp_support = no_temp_support; ditto > + pr_err("batt_detect%d, topoff_threshold%d, > fast_charge%d,no_temp_support%d, no_insert_detect%d\n", > + batt_detect, topoff_threshold, fast_charge, > + no_temp_support, no_insert_detect); pr_err, are you sure? :) > + return 0; > +} > +#else > +#define max8925_power_dt_init(x, y) (-1) You should make it static inline function to get rid of the warning above. > +#endif > + > +static char *power_supplicants[] = { > + "max8925-battery", > +}; > + > static __devinit int max8925_power_probe(struct platform_device *pdev) > { > struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent); > - struct max8925_power_pdata *pdata = NULL; > + struct max8925_power_pdata *pdata = pdev->dev.platform_data; > struct max8925_power_info *info; > int ret; > > - pdata = pdev->dev.platform_data; > + if (pdev->dev.parent->of_node && !pdata) { > + pdata = devm_kzalloc(&pdev->dev, > + sizeof(struct max8925_power_pdata), > + GFP_KERNEL); > Please move this logic into max8925_power_dt_init(). So it will look like if (!pdata) pdata = max8925_power_dt_init(pdev); if (!pdata) { dev_err(...); return ...; } > + max8925_power_dt_init(pdev, pdata); > + } > if (!pdata) { > dev_err(&pdev->dev, "platform data isn't assigned to " > "power supply\n"); > @@ -453,8 +497,8 @@ static __devinit int max8925_power_probe(struct > platform_device *pdev) > info->ac.properties = max8925_ac_props; > info->ac.num_properties = ARRAY_SIZE(max8925_ac_props); > info->ac.get_property = max8925_ac_get_prop; > - info->ac.supplied_to = pdata->supplied_to; > - info->ac.num_supplicants = pdata->num_supplicants; > + info->ac.supplied_to = power_supplicants; > + info->ac.num_supplicants = ARRAY_SIZE(power_supplicants); > ret = power_supply_register(&pdev->dev, &info->ac); > if (ret) > goto out; > @@ -465,8 +509,8 @@ static __devinit int max8925_power_probe(struct > platform_device *pdev) > info->usb.properties = max8925_usb_props; > info->usb.num_properties = ARRAY_SIZE(max8925_usb_props); > info->usb.get_property = max8925_usb_get_prop; > - info->usb.supplied_to = pdata->supplied_to; > - info->usb.num_supplicants = pdata->num_supplicants; > + info->usb.supplied_to = power_supplicants; > + info->usb.num_supplicants = ARRAY_SIZE(power_supplicants); > > ret = power_supply_register(&pdev->dev, &info->usb); > if (ret) > @@ -491,6 +535,7 @@ static __devinit int max8925_power_probe(struct > platform_device *pdev) > info->no_insert_detect = pdata->no_insert_detect; > > max8925_init_charger(chip, info); > + This change is unrelated. > return 0; > out_battery: > power_supply_unregister(&info->battery); > -- > 1.7.0.4 Thanks, Anton. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/