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| author | John Keeping <john@metanate.com> | 2021-11-26 18:13:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 13:05:31 +0300 |
| commit | e7525b3b9edaa6b5b8fdc84a9daf16d704011200 (patch) | |
| tree | af4ebba60f2a160436e10950d88c3eec6e04bb09 /drivers/pinctrl | |
| parent | 8fc3bd2c347ba23fa9dbc25be4f82c0b761e9399 (diff) | |
| download | linux-e7525b3b9edaa6b5b8fdc84a9daf16d704011200.tar.xz | |
pinctrl/rockchip: fix gpio device creation
commit bceb6732f3fd2a55d8f2e518cced1c7555e216b6 upstream.
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 <john@metanate.com>
Link: https://lore.kernel.org/r/20211126151352.1509583-1-john@metanate.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/pinctrl-rockchip.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c index 5ce260f152ce..dc52da94af0b 100644 --- a/drivers/pinctrl/pinctrl-rockchip.c +++ b/drivers/pinctrl/pinctrl-rockchip.c @@ -2748,7 +2748,7 @@ 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) { dev_err(&pdev->dev, "failed to register gpio device\n"); return ret; |