[PATCH 4/4] pinctrl: rockchip: register gpio driver before pinctrl driver

[Jianqun Xu <jay.xu@xxxxxxxxxxxxxx>]

This patch should co-work with the gpio-rockchip driver patch, it
populates the gpio platform first and add gpio_chip after pinctrl
register.

Signed-off-by: Jianqun Xu <jay.xu@xxxxxxxxxxxxxx>
---
 drivers/pinctrl/pinctrl-rockchip.c | 29 ++++++++++++++++++++++++-----
 1 file changed, 24 insertions(+), 5 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index d8dd8415fa81..4c79df79017a 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2666,6 +2666,13 @@ static int __maybe_unused rockchip_pinctrl_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(rockchip_pinctrl_dev_pm_ops, rockchip_pinctrl_suspend,
 			 rockchip_pinctrl_resume);
 
+static int gpiochip_match_name(struct gpio_chip *gc, void *data)
+{
+	const char *name = data;
+
+	return !strcmp(gc->label, name);
+}
+
 static int rockchip_pinctrl_probe(struct platform_device *pdev)
 {
 	struct rockchip_pinctrl *info;
@@ -2674,7 +2681,7 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)
 	struct rockchip_pin_ctrl *ctrl;
 	struct resource *res;
 	void __iomem *base;
-	int ret;
+	int ret, i;
 
 	if (!dev->of_node)
 		return dev_err_probe(dev, -ENODEV, "device tree node not found\n");
@@ -2683,6 +2690,10 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)
 	if (!info)
 		return -ENOMEM;
 
+	ret = of_platform_populate(np, NULL, NULL, NULL);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to register gpio device\n");
+
 	info->dev = dev;
 
 	ctrl = rockchip_pinctrl_get_soc_data(info, pdev);
@@ -2733,11 +2744,19 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	platform_set_drvdata(pdev, info);
+	for (i = 0; i < ctrl->nr_banks; i++) {
+		struct gpio_chip *gc;
 
-	ret = of_platform_populate(np, NULL, NULL, &pdev->dev);
-	if (ret)
-		return dev_err_probe(dev, ret, "failed to register gpio device\n");
+		gc = gpiochip_find((void *)ctrl->pin_banks[i].name, gpiochip_match_name);
+		ret = gpiochip_add_pin_range(gc, dev_name(dev), 0, gc->base, gc->ngpio);
+		if (ret) {
+				dev_err(dev, "fail to add pin range\n");
+				return ret;
+		}
+	}
+
+	platform_set_drvdata(pdev, info);
+	dev_info(dev, "probed %s\n", dev_name(dev));
 
 	return 0;
 }
-- 
2.25.1