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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-04-01 13:36:02 +0300 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-04-18 16:18:52 +0300 |
| commit | edc5601db66411a8c9c6b08b3aacf7e154a34c6d (patch) | |
| tree | a5bd34c89daa1efac586eba28cd924c60131a47b /drivers/pinctrl/meson | |
| parent | 6671d0bc17866f71b8ca7ea3fb7e6dfc2a8069d2 (diff) | |
| download | linux-edc5601db66411a8c9c6b08b3aacf7e154a34c6d.tar.xz | |
pinctrl: meson: Replace custom code by gpiochip_node_count() call
Since we have generic function to count GPIO controller nodes
under a given device, there is no need to open code it. Replace
custom code by gpiochip_node_count() call.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Diffstat (limited to 'drivers/pinctrl/meson')
| -rw-r--r-- | drivers/pinctrl/meson/pinctrl-meson.c | 28 |
1 files changed, 12 insertions, 16 deletions
diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c index 5b46a0979db7..cc2cd73ff8f9 100644 --- a/drivers/pinctrl/meson/pinctrl-meson.c +++ b/drivers/pinctrl/meson/pinctrl-meson.c @@ -49,6 +49,7 @@ #include <linux/pinctrl/pinctrl.h> #include <linux/pinctrl/pinmux.h> #include <linux/platform_device.h> +#include <linux/property.h> #include <linux/regmap.h> #include <linux/seq_file.h> @@ -662,27 +663,22 @@ static struct regmap *meson_map_resource(struct meson_pinctrl *pc, return devm_regmap_init_mmio(pc->dev, base, &meson_regmap_config); } -static int meson_pinctrl_parse_dt(struct meson_pinctrl *pc, - struct device_node *node) +static int meson_pinctrl_parse_dt(struct meson_pinctrl *pc) { - struct device_node *np, *gpio_np = NULL; + struct device_node *gpio_np; + unsigned int chips; - for_each_child_of_node(node, np) { - if (!of_find_property(np, "gpio-controller", NULL)) - continue; - if (gpio_np) { - dev_err(pc->dev, "multiple gpio nodes\n"); - of_node_put(np); - return -EINVAL; - } - gpio_np = np; - } - - if (!gpio_np) { + chips = gpiochip_node_count(pc->dev); + if (!chips) { dev_err(pc->dev, "no gpio node found\n"); return -EINVAL; } + if (chips > 1) { + dev_err(pc->dev, "multiple gpio nodes\n"); + return -EINVAL; + } + gpio_np = to_of_node(gpiochip_node_get_first(pc->dev)); pc->of_node = gpio_np; pc->reg_mux = meson_map_resource(pc, gpio_np, "mux"); @@ -751,7 +747,7 @@ int meson_pinctrl_probe(struct platform_device *pdev) pc->dev = dev; pc->data = (struct meson_pinctrl_data *) of_device_get_match_data(dev); - ret = meson_pinctrl_parse_dt(pc, dev->of_node); + ret = meson_pinctrl_parse_dt(pc); if (ret) return ret; |