power: supply: sc27xx: Introduce local variable 'struct device *dev'

Introduce local variable 'struct device *dev' and use it instead of
dereferencing it repeatly.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Reviewed-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

diff --git a/drivers/power/supply/sc27xx_fuel_gauge.c b/drivers/power/supply/sc27xx_fuel_gauge.c
index 24895cc..9c184d8 100644 (file)
--- a/drivers/power/supply/sc27xx_fuel_gauge.c
+++ b/drivers/power/supply/sc27xx_fuel_gauge.c
@@ -957,81 +957,82 @@ disable_fgu:
 
 static int sc27xx_fgu_probe(struct platform_device *pdev)
 {
-       struct device_node *np = pdev->dev.of_node;
+       struct device *dev = &pdev->dev;
+       struct device_node *np = dev->of_node;
        struct power_supply_config fgu_cfg = { };
        struct sc27xx_fgu_data *data;
        int ret, irq;
 
-       data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+       data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
        if (!data)
                return -ENOMEM;
 
-       data->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+       data->regmap = dev_get_regmap(dev->parent, NULL);
        if (!data->regmap) {
-               dev_err(&pdev->dev, "failed to get regmap\n");
+               dev_err(dev, "failed to get regmap\n");
                return -ENODEV;
        }
 
-       ret = device_property_read_u32(&pdev->dev, "reg", &data->base);
+       ret = device_property_read_u32(dev, "reg", &data->base);
        if (ret) {
-               dev_err(&pdev->dev, "failed to get fgu address\n");
+               dev_err(dev, "failed to get fgu address\n");
                return ret;
        }
 
-       data->channel = devm_iio_channel_get(&pdev->dev, "bat-temp");
+       data->channel = devm_iio_channel_get(dev, "bat-temp");
        if (IS_ERR(data->channel)) {
-               dev_err(&pdev->dev, "failed to get IIO channel\n");
+               dev_err(dev, "failed to get IIO channel\n");
                return PTR_ERR(data->channel);
        }
 
-       data->charge_chan = devm_iio_channel_get(&pdev->dev, "charge-vol");
+       data->charge_chan = devm_iio_channel_get(dev, "charge-vol");
        if (IS_ERR(data->charge_chan)) {
-               dev_err(&pdev->dev, "failed to get charge IIO channel\n");
+               dev_err(dev, "failed to get charge IIO channel\n");
                return PTR_ERR(data->charge_chan);
        }
 
-       data->gpiod = devm_gpiod_get(&pdev->dev, "bat-detect", GPIOD_IN);
+       data->gpiod = devm_gpiod_get(dev, "bat-detect", GPIOD_IN);
        if (IS_ERR(data->gpiod)) {
-               dev_err(&pdev->dev, "failed to get battery detection GPIO\n");
+               dev_err(dev, "failed to get battery detection GPIO\n");
                return PTR_ERR(data->gpiod);
        }
 
        ret = gpiod_get_value_cansleep(data->gpiod);
        if (ret < 0) {
-               dev_err(&pdev->dev, "failed to get gpio state\n");
+               dev_err(dev, "failed to get gpio state\n");
                return ret;
        }
 
        data->bat_present = !!ret;
        mutex_init(&data->lock);
-       data->dev = &pdev->dev;
+       data->dev = dev;
        platform_set_drvdata(pdev, data);
 
        fgu_cfg.drv_data = data;
        fgu_cfg.of_node = np;
-       data->battery = devm_power_supply_register(&pdev->dev, &sc27xx_fgu_desc,
+       data->battery = devm_power_supply_register(dev, &sc27xx_fgu_desc,
                                                   &fgu_cfg);
        if (IS_ERR(data->battery)) {
-               dev_err(&pdev->dev, "failed to register power supply\n");
+               dev_err(dev, "failed to register power supply\n");
                return PTR_ERR(data->battery);
        }
 
        ret = sc27xx_fgu_hw_init(data);
        if (ret) {
-               dev_err(&pdev->dev, "failed to initialize fgu hardware\n");
+               dev_err(dev, "failed to initialize fgu hardware\n");
                return ret;
        }
 
-       ret = devm_add_action(&pdev->dev, sc27xx_fgu_disable, data);
+       ret = devm_add_action(dev, sc27xx_fgu_disable, data);
        if (ret) {
                sc27xx_fgu_disable(data);
-               dev_err(&pdev->dev, "failed to add fgu disable action\n");
+               dev_err(dev, "failed to add fgu disable action\n");
                return ret;
        }
 
        irq = platform_get_irq(pdev, 0);
        if (irq < 0) {
-               dev_err(&pdev->dev, "no irq resource specified\n");
+               dev_err(dev, "no irq resource specified\n");
                return irq;
        }
 
@@ -1046,17 +1047,17 @@ static int sc27xx_fgu_probe(struct platform_device *pdev)
 
        irq = gpiod_to_irq(data->gpiod);
        if (irq < 0) {
-               dev_err(&pdev->dev, "failed to translate GPIO to IRQ\n");
+               dev_err(dev, "failed to translate GPIO to IRQ\n");
                return irq;
        }
 
-       ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+       ret = devm_request_threaded_irq(dev, irq, NULL,
                                        sc27xx_fgu_bat_detection,
                                        IRQF_ONESHOT | IRQF_TRIGGER_RISING |
                                        IRQF_TRIGGER_FALLING,
                                        pdev->name, data);
        if (ret) {
-               dev_err(&pdev->dev, "failed to request IRQ\n");
+               dev_err(dev, "failed to request IRQ\n");
                return ret;
        }