pwm: Drop per-chip dbg_show callback

This callback was introduced in commit 62099abf67a2 ("pwm: Add debugfs
interface") in 2012 and up to now there is not a single user. So drop
this unused code.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
[thierry.reding@gmail.com: remove kerneldoc for ->dbg_show()]
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 253a459..3149204 100644 (file)
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -1036,10 +1036,7 @@ static int pwm_seq_show(struct seq_file *s, void *v)
                   dev_name(chip->dev), chip->npwm,
                   (chip->npwm != 1) ? "s" : "");
 
-       if (chip->ops->dbg_show)
-               chip->ops->dbg_show(chip, s);
-       else
-               pwm_dbg_show(chip, s);
+       pwm_dbg_show(chip, s);
 
        return 0;
 }

diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index d5199b5..6a544cb 100644 (file)
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -254,7 +254,6 @@ pwm_set_relative_duty_cycle(struct pwm_state *state, unsigned int duty_cycle,
  * @get_state: get the current PWM state. This function is only
  *            called once per PWM device when the PWM chip is
  *            registered.
- * @dbg_show: optional routine to show contents in debugfs
  * @owner: helps prevent removal of modules exporting active PWMs
  */
 struct pwm_ops {
@@ -272,9 +271,6 @@ struct pwm_ops {
                     struct pwm_state *state);
        void (*get_state)(struct pwm_chip *chip, struct pwm_device *pwm,
                          struct pwm_state *state);
-#ifdef CONFIG_DEBUG_FS
-       void (*dbg_show)(struct pwm_chip *chip, struct seq_file *s);
-#endif
        struct module *owner;
 };