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gpio: rockchip: Get pinctrl device from gpio-ranges prop

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Get pinctrl device from gpio-ranges phandle when the property exists,
fallback to get the first pinctrl device.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Jonas Karlman
2024-08-02 22:56:48 +00:00
committed by Ondrej Jirman
parent 75fd5d0117
commit eaae156799
1 changed files with 19 additions and 8 deletions
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27
drivers/gpio/rk_gpio.c
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@@ -181,12 +181,6 @@ static int rockchip_gpio_probe(struct udevice *dev)
priv->regs = dev_read_addr_ptr(dev);
if (CONFIG_IS_ENABLED(PINCTRL)) {
ret = uclass_first_device_err(UCLASS_PINCTRL, &priv->pinctrl);
if (ret)
return ret;
}
/*
* If "gpio-ranges" is present in the devicetree use it to parse
* the GPIO bank ID, otherwise use the legacy method.
@@ -194,16 +188,33 @@ static int rockchip_gpio_probe(struct udevice *dev)
ret = ofnode_parse_phandle_with_args(dev_ofnode(dev),
"gpio-ranges", NULL, 3,
0, &args);
if (!ret || ret != -ENOENT) {
if (!ret) {
uc_priv->gpio_count = args.args[2];
priv->bank = args.args[1] / ROCKCHIP_GPIOS_PER_BANK;
} else {
if (CONFIG_IS_ENABLED(PINCTRL)) {
ret = uclass_get_device_by_ofnode(UCLASS_PINCTRL,
args.node,
&priv->pinctrl);
if (ret)
return ret;
}
} else if (ret == -ENOENT || !CONFIG_IS_ENABLED(PINCTRL)) {
uc_priv->gpio_count = ROCKCHIP_GPIOS_PER_BANK;
ret = dev_read_alias_seq(dev, &priv->bank);
if (ret) {
end = strrchr(dev->name, '@');
priv->bank = trailing_strtoln(dev->name, end);
}
if (CONFIG_IS_ENABLED(PINCTRL)) {
ret = uclass_first_device_err(UCLASS_PINCTRL,
&priv->pinctrl);
if (ret)
return ret;
}
} else {
return ret;
}
priv->name[0] = 'A' + priv->bank;