pinctrl: qcom: Use platform_irq_count() instead of of_irq_count()

of_irq_count() is not an exported symbol (and it shouldn't be
used by platform drivers anyway) so use platform_irq_count()
instead. This allows us to make the qcom pinctrl drivers modular
again.

Cc: Rob Herring <[e-mail]>
Cc: Andy Gross <[e-mail]>
Cc: Bjorn Andersson <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/qcom/pinctrl-spmi-gpio.c

···
 		return ret;
 	}
 
-	npins = of_irq_count(dev->of_node);
+	npins = platform_irq_count(pdev);
 	if (!npins)
 		return -EINVAL;
+	if (npins < 0)
+		return npins;
 
 	BUG_ON(npins > ARRAY_SIZE(pmic_gpio_groups));
 

drivers/pinctrl/qcom/pinctrl-spmi-mpp.c

···
 		return ret;
 	}
 
-	npins = of_irq_count(dev->of_node);
+	npins = platform_irq_count(pdev);
 	if (!npins)
 		return -EINVAL;
+	if (npins < 0)
+		return npins;
 
 	BUG_ON(npins > ARRAY_SIZE(pmic_mpp_groups));
 

drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c

···
 	struct pinctrl_pin_desc *pins;
 	struct pm8xxx_gpio *pctrl;
 	int ret;
-	int i;
+	int i, npins;
 
 	pctrl = devm_kzalloc(&pdev->dev, sizeof(*pctrl), GFP_KERNEL);
 	if (!pctrl)
 		return -ENOMEM;
 
 	pctrl->dev = &pdev->dev;
-	pctrl->npins = of_irq_count(pdev->dev.of_node);
-	if (!pctrl->npins)
+	npins = platform_irq_count(pdev);
+	if (!npins)
 		return -EINVAL;
+	if (npins < 0)
+		return npins;
+	pctrl->npins = npins;
 
 	pctrl->regmap = dev_get_regmap(pdev->dev.parent, NULL);
 	if (!pctrl->regmap) {

drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c

···
 	struct pinctrl_pin_desc *pins;
 	struct pm8xxx_mpp *pctrl;
 	int ret;
-	int i;
+	int i, npins;
 
 	pctrl = devm_kzalloc(&pdev->dev, sizeof(*pctrl), GFP_KERNEL);
 	if (!pctrl)
 		return -ENOMEM;
 
 	pctrl->dev = &pdev->dev;
-	pctrl->npins = of_irq_count(pdev->dev.of_node);
-	if (!pctrl->npins)
+	npins = platform_irq_count(pdev);
+	if (!npins)
 		return -EINVAL;
+	if (npins < 0)
+		return npins;
+	pctrl->npins = npins;
 
 	pctrl->regmap = dev_get_regmap(pdev->dev.parent, NULL);
 	if (!pctrl->regmap) {