[RFC PATCH 16/15] pwm: add informations about polarity, duty cycle and period to debugfs

Heiko Stübner
2015-07-01T21:50:46Z

The pwm-states make it possible to also output the polarity, duty cycle
and period information in the debugfs pwm summary-outout.
This makes it easier to gather overview information about pwms without
needing to walk through the sysfs attributes of every pwm.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
might be nice to have too ;-)

drivers/pwm/core.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 6dafd8e..79037a2 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -951,9 +951,18 @@ static void pwm_dbg_show(struct pwm_chip *chip, struct seq_file *s)
if (test_bit(PWMF_REQUESTED, &pwm->flags))
seq_puts(s, " requested");

- if (pwm_is_enabled(pwm))
+ if (pwm_is_enabled(pwm)) {
seq_puts(s, " enabled");

+ seq_printf(s, " period:%uns",
+ pwm_get_period(pwm));
+ seq_printf(s, " duty:%uns",
+ pwm_get_duty_cycle(pwm));
+ seq_printf(s, " polarity:%s",
+ pwm_get_polarity(pwm) ? "inverse"
+ : "normal");
+ }
+
seq_puts(s, "\n");
}
}
--
2.1.4