pinctrl variants that include pinctrl-mtk-common-v2.h (and not
pinctrl-mtk-common.h) also need to use mtk_eint_pm_ops to setup
wake mask properly, so copy over the pm_ops to v2.

It is not easy to merge the 2 copies (or move
mtk_eint_suspend/resume to mtk-eint.c), as we need to
dereference pctrl->eint, and struct mtk_pinctrl *pctl has a
different structure definition for v1 and v2.

Signed-off-by: Nicolas Boichat <redacted>
Reviewed-by: Chuanjia Liu <redacted>
---
 .../pinctrl/mediatek/pinctrl-mtk-common-v2.c  | 19 +++++++++++++++++++
 .../pinctrl/mediatek/pinctrl-mtk-common-v2.h  |  1 +
 2 files changed, 20 insertions(+)

diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
index 20e1c890e73b30c..7e19b5a4748eafe 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c

@@ -723,3 +723,22 @@ int mtk_pinconf_adv_drive_get(struct mtk_pinctrl *hw,
 
 	return 0;
 }
+
+static int mtk_eint_suspend(struct device *device)
+{
+	struct mtk_pinctrl *pctl = dev_get_drvdata(device);
+
+	return mtk_eint_do_suspend(pctl->eint);
+}
+
+static int mtk_eint_resume(struct device *device)
+{
+	struct mtk_pinctrl *pctl = dev_get_drvdata(device);
+
+	return mtk_eint_do_resume(pctl->eint);
+}
+
+const struct dev_pm_ops mtk_eint_pm_ops = {
+	.suspend_noirq = mtk_eint_suspend,
+	.resume_noirq = mtk_eint_resume,
+};