pinctrl: show pin name for pingroups in sysfs (dcb5dbc3) · Commits · 戴 / test

drivers/pinctrl/core.c

+28 −4

Original line number	Diff line number	Diff line
		@@ -125,6 +125,25 @@ int pin_get_from_name(struct pinctrl_dev pctldev, const char name)
		return -EINVAL;
		}

		/**
		* pin_get_name_from_id() - look up a pin name from a pin id
		* @pctldev: the pin control device to lookup the pin on
		* @name: the name of the pin to look up
		*/
		const char pin_get_name(struct pinctrl_dev pctldev, const unsigned pin)
		{
		const struct pin_desc *desc;

		desc = pin_desc_get(pctldev, pin);
		if (desc == NULL) {
		dev_err(pctldev->dev, "failed to get pin(%d) name\n",
		pin);
		return NULL;
		}

		return desc->name;
		}

		/**
		* pin_is_valid() - check if pin exists on controller
		* @pctldev: the pin control device to check the pin on
		@@ -1011,6 +1030,7 @@ static int pinctrl_groups_show(struct seq_file s, void what)
		const unsigned *pins;
		unsigned num_pins;
		const char *gname = ops->get_group_name(pctldev, selector);
		const char *pname;
		int ret;
		int i;

		@@ -1020,10 +1040,14 @@ static int pinctrl_groups_show(struct seq_file s, void what)
		seq_printf(s, "%s [ERROR GETTING PINS]\n",
		gname);
		else {
		seq_printf(s, "group: %s, pins = [ ", gname);
		for (i = 0; i < num_pins; i++)
		seq_printf(s, "%d ", pins[i]);
		seq_puts(s, "]\n");
		seq_printf(s, "group: %s\n", gname);
		for (i = 0; i < num_pins; i++) {
		pname = pin_get_name(pctldev, pins[i]);
		if (WARN_ON(!pname))
		return -EINVAL;
		seq_printf(s, "pin %d (%s)\n", pins[i], pname);
		}
		seq_puts(s, "\n");
		}
		selector++;
		}

+1 −0

Original line number	Diff line number	Diff line
		@@ -148,6 +148,7 @@ struct pin_desc {

		struct pinctrl_dev get_pinctrl_dev_from_devname(const char dev_name);
		int pin_get_from_name(struct pinctrl_dev pctldev, const char name);
		const char pin_get_name(struct pinctrl_dev pctldev, const unsigned pin);
		int pinctrl_get_group_selector(struct pinctrl_dev *pctldev,
		const char *pin_group);