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

Message ID 1447664207-24370-22-git-send-email-boris.brezillon@free-electrons.com (mailing list archive)
State Not Applicable
Headers show

Commit Message

Boris BREZILLON Nov. 16, 2015, 8:56 a.m. UTC 
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 <boris.brezillon@free-electrons.com>
---
 drivers/pwm/core.c | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

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");
 	}
 }