diff options
| author |   Thierry Reding <thierry.reding@avionic-design.de> | 2012-03-26 09:31:48 +0200 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@avionic-design.de> | 2012-06-15 12:56:53 +0200 |
| commit | 62099abf67a20cfb98d4c031fb1925e10a78ee1b (patch) | |
| tree | 5d4d68e642e4a632111f4f179c1e0edfc989429c /include/linux/pwm.h | |
| parent | pwm: Allow chips to support multiple PWMs (diff) | |
| download | linux-dev-62099abf67a20cfb98d4c031fb1925e10a78ee1b.tar.xz linux-dev-62099abf67a20cfb98d4c031fb1925e10a78ee1b.zip | |
pwm: Add debugfs interface
This commit adds a debugfs interface that can be used to list the
current internal state of the PWM devices registered with the PWM
framework.
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Diffstat (limited to 'include/linux/pwm.h')
| -rw-r--r-- | include/linux/pwm.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/pwm.h b/include/linux/pwm.h index 57103911f4c7..047cd5351a3b 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -2,6 +2,7 @@ #define __LINUX_PWM_H struct pwm_device; +struct seq_file; /* * pwm_request - request a PWM device @@ -65,6 +66,7 @@ static inline unsigned int pwm_get_period(struct pwm_device *pwm) * @config: configure duty cycles and period length for this PWM * @enable: enable PWM output toggling * @disable: disable PWM output toggling + * @dbg_show: optional routine to show contents in debugfs * @owner: helps prevent removal of modules exporting active PWMs */ struct pwm_ops { @@ -79,6 +81,10 @@ struct pwm_ops { struct pwm_device *pwm); void (*disable)(struct pwm_chip *chip, struct pwm_device *pwm); +#ifdef CONFIG_DEBUG_FS + void (*dbg_show)(struct pwm_chip *chip, + struct seq_file *s); +#endif struct module *owner; }; |