pinctrl: allow pctldevs to decode pin config in debugfs

Add a pinconf op so that pin controller drivers can decode their pin
config settings for debugfs.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/pinctrl/pinconf.h b/include/linux/pinctrl/pinconf.h
index ec431f03362d..7b9d5f00ed37 100644
--- a/include/linux/pinctrl/pinconf.h
+++ b/include/linux/pinctrl/pinconf.h
@@ -33,6 +33,8 @@ struct seq_file;
  *      per-device info for a certain pin in debugfs
  * @pin_config_group_dbg_show: optional debugfs display hook that will provide
  *      per-device info for a certain group in debugfs
+ * @pin_config_config_dbg_show: optional debugfs display hook that will decode
+ *      and display a driver's pin configuration parameter
  */
 struct pinconf_ops {
 #ifdef CONFIG_GENERIC_PINCONF
@@ -56,6 +58,9 @@ struct pinconf_ops {
         void (*pin_config_group_dbg_show) (struct pinctrl_dev *pctldev,
                                            struct seq_file *s,
                                            unsigned selector);
+        void (*pin_config_config_dbg_show) (struct pinctrl_dev *pctldev,
+                                            struct seq_file *s,
+                                            unsigned long config);
 };
 
 #endif