diff options
| author | Markus Pargmann <mpa@pengutronix.de> | 2015-08-14 16:11:02 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2015-09-24 10:48:53 -0700 |
| commit | ced433e2a4a0f11362c149daf802157ffb65ee20 (patch) | |
| tree | 03569d5b3e5980e8a0a799a9c70fb8317f78c5d4 /drivers/gpio/gpiolib.c | |
| parent | ddd5404007b8496f20ad2efe1147e102e6226634 (diff) | |
gpiolib: Add gpio name information to /sys/kernel/debug/gpio
Add some information about gpio names to the debugfs gpio file. name and
label of a GPIO are then displayed next to each other. This way it is
easy to see what the real name of GPIO is and what the driver requested
it for.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
[Dropped unsolicited sysfs ABI patch hunk]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 2341bfce235e..09b7316a9834 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2378,14 +2378,19 @@ static void gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip) int is_irq; for (i = 0; i < chip->ngpio; i++, gpio++, gdesc++) { - if (!test_bit(FLAG_REQUESTED, &gdesc->flags)) + if (!test_bit(FLAG_REQUESTED, &gdesc->flags)) { + if (gdesc->name) { + seq_printf(s, " gpio-%-3d (%-20.20s)\n", + gpio, gdesc->name); + } continue; + } 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) %s %s %s", - gpio, gdesc->label, + seq_printf(s, " gpio-%-3d (%-20.20s|%-20.20s) %s %s %s", + gpio, gdesc->name ? gdesc->name : "", gdesc->label, is_out ? "out" : "in ", chip->get ? (chip->get(chip, i) ? "hi" : "lo") |