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pwm: Add information about polarity, duty cycle and period to debugfs 

The PWM states make it possible to also output the polarity, duty cycle
and period information in the debugfs summary output. This simplifies
gathering 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>
[thierry.reding@gmail.com: use more spaces in debugfs output]
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Heiko Stübner 2016-04-14 21:17:44 +02:00 committed by Thierry Reding
parent 39100ceea7
commit 23e3523f5d
1 changed files with 5 additions and 0 deletions
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5
drivers/pwm/core.c
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@ -960,6 +960,11 @@ static void pwm_dbg_show(struct pwm_chip *chip, struct seq_file *s)
if (state.enabled) if (state.enabled)
seq_puts(s, " enabled"); seq_puts(s, " enabled");
seq_printf(s, " period: %u ns", state.period);
seq_printf(s, " duty: %u ns", state.duty_cycle);
seq_printf(s, " polarity: %s",
state.polarity ? "inverse" : "normal");
seq_puts(s, "\n"); seq_puts(s, "\n");
} }
} }