mfd: mt6397: IRQ domain should initialize before mfd_add_devices()

Some sub driver like RTC module need irq domain from parent to create
irq mapping when driver initialize. so move mt6397_irq_init() before
mfd_add_devices().

Acked-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/drivers/mfd/mt6397-core.c b/drivers/mfd/mt6397-core.c
index 5a3ffa3..e14d8b0 100644 (file)
--- a/drivers/mfd/mt6397-core.c
+++ b/drivers/mfd/mt6397-core.c
@@ -267,15 +267,23 @@ static int mt6397_probe(struct platform_device *pdev)
        ret = regmap_read(pmic->regmap, MT6397_CID, &id);
        if (ret) {
                dev_err(pmic->dev, "Failed to read chip id: %d\n", ret);
-               goto fail_irq;
+               return ret;
        }
 
+       pmic->irq = platform_get_irq(pdev, 0);
+       if (pmic->irq <= 0)
+               return pmic->irq;
+
        switch (id & 0xff) {
        case MT6323_CID_CODE:
                pmic->int_con[0] = MT6323_INT_CON0;
                pmic->int_con[1] = MT6323_INT_CON1;
                pmic->int_status[0] = MT6323_INT_STATUS0;
                pmic->int_status[1] = MT6323_INT_STATUS1;
+               ret = mt6397_irq_init(pmic);
+               if (ret)
+                       return ret;
+
                ret = devm_mfd_add_devices(&pdev->dev, -1, mt6323_devs,
                                           ARRAY_SIZE(mt6323_devs), NULL,
                                           0, NULL);
@@ -287,6 +295,10 @@ static int mt6397_probe(struct platform_device *pdev)
                pmic->int_con[1] = MT6397_INT_CON1;
                pmic->int_status[0] = MT6397_INT_STATUS0;
                pmic->int_status[1] = MT6397_INT_STATUS1;
+               ret = mt6397_irq_init(pmic);
+               if (ret)
+                       return ret;
+
                ret = devm_mfd_add_devices(&pdev->dev, -1, mt6397_devs,
                                           ARRAY_SIZE(mt6397_devs), NULL,
                                           0, NULL);
@@ -298,14 +310,6 @@ static int mt6397_probe(struct platform_device *pdev)
                break;
        }
 
-       pmic->irq = platform_get_irq(pdev, 0);
-       if (pmic->irq > 0) {
-               ret = mt6397_irq_init(pmic);
-               if (ret)
-                       return ret;
-       }
-
-fail_irq:
        if (ret) {
                irq_domain_remove(pmic->irq_domain);
                dev_err(&pdev->dev, "failed to add child devices: %d\n", ret);