power: supply: cpcap-battery: use device_get_match_data() to simplify code

In the function cpcap_battery_probe(), the driver only needs the
data object, so use device_get_match_data() instead, to make the
code cleaner.

Signed-off-by: Tang Bin <[e-mail]>
Signed-off-by: Sebastian Reichel <[e-mail]>

drivers/power/supply/cpcap-battery.c

···
 static int cpcap_battery_probe(struct platform_device *pdev)
 {
 	struct cpcap_battery_ddata *ddata;
-	const struct of_device_id *match;
 	struct power_supply_config psy_cfg = {};
 	int error;
+	const struct cpcap_battery_config *cfg;
 
-	match = of_match_device(of_match_ptr(cpcap_battery_id_table),
-				&pdev->dev);
-	if (!match)
-		return -EINVAL;
-
-	if (!match->data) {
-		dev_err(&pdev->dev, "no configuration data found\n");
-
+	cfg = device_get_match_data(&pdev->dev);
+	if (!cfg)
 		return -ENODEV;
-	}
 
 	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
 	if (!ddata)
···
 
 	INIT_LIST_HEAD(&ddata->irq_list);
 	ddata->dev = &pdev->dev;
-	memcpy(&ddata->config, match->data, sizeof(ddata->config));
+	memcpy(&ddata->config, cfg, sizeof(ddata->config));
 
 	ddata->reg = dev_get_regmap(ddata->dev->parent, NULL);
 	if (!ddata->reg)