lp8788-charger: Fix a parent device in kernel messages

Use 'platform_device' in kernel messages rather than i2c client device
node. lp8788_update_charger_params() needs additional argument, 'pdev'.
Then, remove unnecessary lp8788 private data in lp8788_irq_register().

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>

drivers/power/lp8788-charger.c

@@ -367,7 +367,8 @@ static inline bool lp8788_is_valid_charger_register(u8 addr)
 	return addr >= LP8788_CHG_START && addr <= LP8788_CHG_END;
 }
 
-static int lp8788_update_charger_params(struct lp8788_charger *pchg)
+static int lp8788_update_charger_params(struct platform_device *pdev,
+					struct lp8788_charger *pchg)
 {
 	struct lp8788 *lp = pchg->lp;
 	struct lp8788_charger_platform_data *pdata = pchg->pdata;
@@ -376,7 +377,7 @@ static int lp8788_update_charger_params(struct lp8788_charger *pchg)
 	int ret;
 
 	if (!pdata || !pdata->chg_params) {
-		dev_info(lp->dev, "skip updating charger parameters\n");
+		dev_info(&pdev->dev, "skip updating charger parameters\n");
 		return 0;
 	}
 
@@ -537,7 +538,6 @@ err_free_irq:
 static int lp8788_irq_register(struct platform_device *pdev,
 				struct lp8788_charger *pchg)
 {
-	struct lp8788 *lp = pchg->lp;
 	const char *name[] = {
 		LP8788_CHG_IRQ, LP8788_PRSW_IRQ, LP8788_BATT_IRQ
 	};
@@ -550,13 +550,13 @@ static int lp8788_irq_register(struct platform_device *pdev,
 	for (i = 0; i < ARRAY_SIZE(name); i++) {
 		ret = lp8788_set_irqs(pdev, pchg, name[i]);
 		if (ret) {
-			dev_warn(lp->dev, "irq setup failed: %s\n", name[i]);
+			dev_warn(&pdev->dev, "irq setup failed: %s\n", name[i]);
 			return ret;
 		}
 	}
 
 	if (pchg->num_irqs > LP8788_MAX_CHG_IRQS) {
-		dev_err(lp->dev, "invalid total number of irqs: %d\n",
+		dev_err(&pdev->dev, "invalid total number of irqs: %d\n",
 			pchg->num_irqs);
 		return -EINVAL;
 	}
@@ -701,7 +701,7 @@ static int lp8788_charger_probe(struct platform_device *pdev)
 	pchg->pdata = lp->pdata ? lp->pdata->chg_pdata : NULL;
 	platform_set_drvdata(pdev, pchg);
 
-	ret = lp8788_update_charger_params(pchg);
+	ret = lp8788_update_charger_params(pdev, pchg);
 	if (ret)
 		return ret;