Thread (46 messages) 46 messages, 8 authors, 2016-03-16
STALE3724d
Revisions (3)
  1. v4 current
  2. v5 [diff vs current]
  3. v5 [diff vs current]

[PATCH v4 21/24] pwm: add information about polarity, duty cycle and period to debugfs

From: Boris Brezillon <hidden>
Date: 2015-11-16 08:57:39
Also in: linux-arm-kernel, linux-clk, linux-input, linux-leds, linux-pwm, linux-rockchip, lkml
Subsystem: pwm subsystem, the rest · Maintainers: Uwe Kleine-König, Linus Torvalds

From: Heiko Stübner <heiko@sntech.de>

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>
Signed-off-by: Boris Brezillon <redacted>
---
 drivers/pwm/core.c | 5 +++++
 1 file changed, 5 insertions(+)
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index fbc71d3..1619101 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -1035,6 +1035,11 @@ static void pwm_dbg_show(struct pwm_chip *chip, struct seq_file *s)
 		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
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help