@@ -1216,6 +1216,15 @@ struct pinctrl_state *pinctrl_lookup_state(struct pinctrl *p,
}
EXPORT_SYMBOL_GPL(pinctrl_lookup_state);
+static void pinctrl_link_add(struct pinctrl_dev *pctldev,
+ struct device *consumer)
+{
+ if (pctldev->desc->create_link)
+ device_link_add(consumer, pctldev->dev,
+ DL_FLAG_PM_RUNTIME |
+ DL_FLAG_AUTOREMOVE_CONSUMER);
+}
+
/**
* pinctrl_commit_state() - select/activate/program a pinctrl state to HW
* @p: the pinctrl handle for the device that requests configuration
@@ -1261,6 +1270,8 @@ static int pinctrl_commit_state(struct pinctrl *p, struct pinctrl_state *state)
if (ret < 0) {
goto unapply_new_state;
}
+
+ pinctrl_link_add(setting->pctldev, p->dev);
}
p->state = state;
@@ -125,6 +125,7 @@ struct pinctrl_ops {
* the hardware description
* @custom_conf_items: Information how to print @params in debugfs, must be
* the same size as the @custom_params, i.e. @num_custom_params
+ * @create_link: If true create a link between pinctrl and it consumer
*/
struct pinctrl_desc {
const char *name;
@@ -139,6 +140,7 @@ struct pinctrl_desc {
const struct pinconf_generic_params *custom_params;
const struct pin_config_item *custom_conf_items;
#endif
+ bool create_link;
};
/* External interface to pin controller */
Pin controller may want to create a link between itself and its clients to be sure of suspend/resume call ordering. Introduce create_link field in pinctrl_desc structure to let pinctrl core knows that controller expect to create a link. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> --- drivers/pinctrl/core.c | 11 +++++++++++ include/linux/pinctrl/pinctrl.h | 2 ++ 2 files changed, 13 insertions(+)