[PATCH v5 20/46] pwm: add information about polarity, duty cycle and period to debugfs

Boris Brezillon
2016-03-30T20:03:43Z

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(+)

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index c2b1569..9a83840 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -894,6 +894,11 @@ static void pwm_dbg_show(struct pwm_chip *chip, struct seq_file *s)
if (pstate.enabled)
seq_puts(s, " enabled");

+ seq_printf(s, " period:%uns", pstate.period);
+ seq_printf(s, " duty:%uns", pstate.duty_cycle);
+ seq_printf(s, " polarity:%s",
+ pstate.polarity ? "inverse" : "normal");
+
seq_puts(s, "\n");
}
}
--
2.5.0