Now GPIOs, wich are requested as IRQ only, will not be displayed
through GPIO debugfs. For example:
# cat /proc/interrupts
CPU0 CPU1
...
209: 0 0 4805d000.gpio 11 Edge 0-0021
# cat /debug/gpio
...
GPIOs 160-191, platform/4805d000.gpio, gpio:
<--- no info about gpio used as IRQ only here
GPIOs 192-223, platform/48051000.gpio, gpio:
gpio-203 (vtt_fixed ) out hi
...
Hence, improve GPIO debugfs code to show such kind of GPIOs
After this patch sys/kernel/debug/gpio will produce following output:
# cat /debug/gpio
...
GPIOs 160-191, platform/4805d000.gpio, gpio:
gpio-171 ((null) ) in hi IRQ
GPIOs 192-223, platform/48051000.gpio, gpio:
gpio-203 (vtt_fixed ) out hi
Cc: Johan Hovold <[email protected]>
Signed-off-by: Grygorii Strashko <[email protected]>
---
drivers/gpio/gpiolib.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 59eaa23..399ce2f 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2259,7 +2259,8 @@ 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) &&
+ !test_bit(FLAG_USED_AS_IRQ, &gdesc->flags))
continue;
gpiod_get_direction(gdesc);
--
1.9.1
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