From bceb6732f3fd2a55d8f2e518cced1c7555e216b6 Mon Sep 17 00:00:00 2001 From: John Keeping Date: Fri, 26 Nov 2021 15:13:52 +0000 Subject: pinctrl/rockchip: fix gpio device creation GPIO nodes are not themselves busses, so passing rockchip_bank_match here is wrong. Passing NULL instead uses the standard bus match table which is more appropriate. devm_of_platform_populate() shows that this is the normal way to call of_platform_populate() from a device driver, so in order to match that more closely also add the pinctrl device as the parent for the newly created GPIO controllers. Specifically, using the wrong match here can break dynamic GPIO hogs as marking the GPIO bank as a bus means that of_platform_notify() will set OF_POPULATED on new child nodes and if this happens before of_gpio_notify() is called then the new hog will be skipped as OF_POPULATED is already set. Fixes: 9ce9a02039de ("pinctrl/rockchip: drop the gpio related codes") Signed-off-by: John Keeping Link: https://lore.kernel.org/r/20211126151352.1509583-1-john@metanate.com Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-rockchip.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/pinctrl') diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c index 438808a867cf..d8dd8415fa81 100644 --- a/drivers/pinctrl/pinctrl-rockchip.c +++ b/drivers/pinctrl/pinctrl-rockchip.c @@ -2735,7 +2735,7 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev) platform_set_drvdata(pdev, info); - ret = of_platform_populate(np, rockchip_bank_match, NULL, NULL); + ret = of_platform_populate(np, NULL, NULL, &pdev->dev); if (ret) return dev_err_probe(dev, ret, "failed to register gpio device\n"); -- cgit v1.2.3