gpiolib: Show more info for interrupt only lines in debugfs

Show more info for interrupt only lines in debugfs. It's useful
to monitor the lines that have been never requested as GPIOs,
but IRQs.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240530191418.1138003-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 3f578d674b53cbc54c366b1f6063051d2398fe19..0ec82ac7f0f489c21d33f09ccccd5d3c861a3b03 100644 (file)
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -4795,11 +4795,11 @@ static void gpiolib_dbg_show(struct seq_file *s, struct gpio_device *gdev)
 
        for_each_gpio_desc(gc, desc) {
                guard(srcu)(&desc->gdev->desc_srcu);
-               if (test_bit(FLAG_REQUESTED, &desc->flags)) {
+               is_irq = test_bit(FLAG_USED_AS_IRQ, &desc->flags);
+               if (is_irq || test_bit(FLAG_REQUESTED, &desc->flags)) {
                        gpiod_get_direction(desc);
                        is_out = test_bit(FLAG_IS_OUT, &desc->flags);
                        value = gpio_chip_get_value(gc, desc);
-                       is_irq = test_bit(FLAG_USED_AS_IRQ, &desc->flags);
                        active_low = test_bit(FLAG_ACTIVE_LOW, &desc->flags);
                        seq_printf(s, " gpio-%-3u (%-20.20s|%-20.20s) %s %s %s%s\n",
                                   gpio, desc->name ?: "", gpiod_get_label(desc),