Commit 6f4350a6 authored by Linus Walleij's avatar Linus Walleij
Browse files

pinctrl/nomadik: break out single GPIO debug function 



Break out the code displaying the status of a single pin so we
can use the same code in the pinctrl debug function.

Acked-by: default avatarStephen Warren <swarren@wwwdotorg.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent e98ea774

drivers/pinctrl/pinctrl-nomadik.c

+57 −48
Original line number Diff line number Diff line
@@ -943,14 +943,16 @@ static int nmk_gpio_to_irq(struct gpio_chip *chip, unsigned offset) 


#include <linux/seq_file.h>



static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)

static void nmk_gpio_dbg_show_one(struct seq_file *s, struct gpio_chip *chip,

				  unsigned offset, unsigned gpio)

{

	int mode;

	unsigned		i;

	unsigned		gpio = chip->base;

	int			is_out;

	const char *label = gpiochip_is_requested(chip, offset);

	struct nmk_gpio_chip *nmk_chip =

		container_of(chip, struct nmk_gpio_chip, chip);

	int mode;

	bool is_out;

	bool pull;

	u32 bit = 1 << offset;

	const char *modes[] = {

		[NMK_GPIO_ALT_GPIO]	= "gpio",

		[NMK_GPIO_ALT_A]	= "altA",
@@ -959,20 +961,15 @@ static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) 
	};



	clk_enable(nmk_chip->clk);



	for (i = 0; i < chip->ngpio; i++, gpio++) {

		const char *label = gpiochip_is_requested(chip, i);

		bool pull;

		u32 bit = 1 << i;



		is_out = readl(nmk_chip->addr + NMK_GPIO_DIR) & bit;

	is_out = !!(readl(nmk_chip->addr + NMK_GPIO_DIR) & bit);

	pull = !(readl(nmk_chip->addr + NMK_GPIO_PDIS) & bit);

	mode = nmk_gpio_get_mode(gpio);



	seq_printf(s, " gpio-%-3d (%-20.20s) %s %s %s %s",

		   gpio, label ?: "(none)",

		   is_out ? "out" : "in ",

		   chip->get

				? (chip->get(chip, i) ? "hi" : "lo")

		   ? (chip->get(chip, offset) ? "hi" : "lo")

		   : "?  ",

		   (mode < 0) ? "unknown" : modes[mode],

		   pull ? "pull" : "none");
@@ -1001,14 +998,26 @@ static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) 
				   ? " wakeup" : "");

		}

	}

	clk_disable(nmk_chip->clk);

}



static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)

{

	unsigned		i;

	unsigned		gpio = chip->base;



	for (i = 0; i < chip->ngpio; i++, gpio++) {

		nmk_gpio_dbg_show_one(s, chip, i, gpio);

		seq_printf(s, "\n");

	}



	clk_disable(nmk_chip->clk);

}



#else

static inline void nmk_gpio_dbg_show_one(struct seq_file *s,

					 struct gpio_chip *chip,

					 unsigned offset, unsigned gpio)

{

}

#define nmk_gpio_dbg_show	NULL

#endif

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