diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2018-10-01 23:06:17 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-10-02 10:06:29 +0200 |
| commit | 90fd227029a25b452fd39dec6d557212d03d79b1 (patch) | |
| tree | d47d460556de6095078678408e5349ee130e4375 | |
| parent | 850d434ea37bd2e15154501279abc5c18bfb72d0 (diff) | |
| download | linux-90fd227029a25b452fd39dec6d557212d03d79b1.tar.bz2 | |
gpio: Slightly more helpful debugfs
This at least makes debugfs print if the line is active
high or low. That is pretty helpful as what we display
as "lo" or "hi" is the raw physical level of the line.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | drivers/gpio/gpiolib.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 83c6ec7f7634..02660bf11189 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -4584,8 +4584,9 @@ static void gpiolib_dbg_show(struct seq_file *s, struct gpio_device *gdev) struct gpio_chip *chip = gdev->chip; unsigned gpio = gdev->base; struct gpio_desc *gdesc = &gdev->descs[0]; - int is_out; - int is_irq; + bool is_out; + bool is_irq; + bool active_low; for (i = 0; i < gdev->ngpio; i++, gpio++, gdesc++) { if (!test_bit(FLAG_REQUESTED, &gdesc->flags)) { @@ -4599,11 +4600,13 @@ static void gpiolib_dbg_show(struct seq_file *s, struct gpio_device *gdev) gpiod_get_direction(gdesc); is_out = test_bit(FLAG_IS_OUT, &gdesc->flags); is_irq = test_bit(FLAG_USED_AS_IRQ, &gdesc->flags); - seq_printf(s, " gpio-%-3d (%-20.20s|%-20.20s) %s %s %s", + active_low = test_bit(FLAG_ACTIVE_LOW, &gdesc->flags); + seq_printf(s, " gpio-%-3d (%-20.20s|%-20.20s) %s %s %s%s", gpio, gdesc->name ? gdesc->name : "", gdesc->label, is_out ? "out" : "in ", chip->get ? (chip->get(chip, i) ? "hi" : "lo") : "? ", - is_irq ? "IRQ" : " "); + is_irq ? "IRQ " : "", + active_low ? "ACTIVE LOW" : ""); seq_printf(s, "\n"); } } |