From 036f394dd77f8117346874151793ec38967d843f Mon Sep 17 00:00:00 2001 From: Benjamin Gaignard Date: Wed, 22 May 2019 17:29:24 +0200 Subject: pinctrl: Enable device link creation for pin control A pin controller may want to create a link between itself and its clients to be sure of suspend/resume call ordering. Introduce link_consumers field in pinctrl_desc structure to let pinctrl core knows that controller expect to create a link. Signed-off-by: Benjamin Gaignard [Renamed create_link to link_consumers] Signed-off-by: Linus Walleij --- drivers/pinctrl/core.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index c6ff4d5fa482..d757c51d7114 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -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->link_consumers) + 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; -- cgit