[RFC PATCH 16/15] pwm: add informations about polarity, duty cycle and period to debugfs
STALE4093d
From: heiko@sntech.de (Heiko Stübner)
Date: 2015-07-01 21:50:46
Also in:
linux-fbdev, linux-leds, linux-pwm, linux-tegra
Subsystem:
pwm subsystem, the rest · Maintainers:
Uwe Kleine-König, Linus Torvalds
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