[PATCH 1/2] pinctrl: Add pinctrl_pm_select_init_state helper function
From: Christian Bruel <christian.bruel@foss.st.com>
Date: 2025-06-26 18:19:33
Also in:
linux-gpio, linux-pci, lkml
Subsystem:
pin control subsystem, the rest · Maintainers:
Linus Walleij, Linus Torvalds
If a platform requires an initial state during probing, this helper function
provides the client with access to the same initial state used to balance
from a pinctrl_pm_select_sleep_state .
eg:
xxx_suspend_noirq
pinctrl_pm_select_sleep_state
xxx resume_noirq
pinctrl_pm_select_init_state
...
pinctrl_pm_select_default_state
Signed-off-by: Christian Bruel <christian.bruel@foss.st.com>
---
drivers/pinctrl/core.c | 13 +++++++++++++
include/linux/pinctrl/consumer.h | 10 ++++++++++
2 files changed, 23 insertions(+)
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 9046292d1360..80cf9f20f626 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c@@ -1655,6 +1655,19 @@ int pinctrl_pm_select_default_state(struct device *dev) } EXPORT_SYMBOL_GPL(pinctrl_pm_select_default_state); +/** + * pinctrl_pm_select_init_state() - select init pinctrl state for PM + * @dev: device to select init state for + */ +int pinctrl_pm_select_init_state(struct device *dev) +{ + if (!dev->pins) + return 0; + + return pinctrl_select_bound_state(dev, dev->pins->init_state); +} +EXPORT_SYMBOL_GPL(pinctrl_pm_select_init_state); + /** * pinctrl_pm_select_sleep_state() - select sleep pinctrl state for PM * @dev: device to select sleep state for
diff --git a/include/linux/pinctrl/consumer.h b/include/linux/pinctrl/consumer.h
index 73de70362b98..63ce16191eb9 100644
--- a/include/linux/pinctrl/consumer.h
+++ b/include/linux/pinctrl/consumer.h@@ -48,6 +48,7 @@ int pinctrl_select_default_state(struct device *dev); #ifdef CONFIG_PM int pinctrl_pm_select_default_state(struct device *dev); +int pinctrl_pm_select_init_state(struct device *dev); int pinctrl_pm_select_sleep_state(struct device *dev); int pinctrl_pm_select_idle_state(struct device *dev); #else
@@ -55,6 +56,10 @@ static inline int pinctrl_pm_select_default_state(struct device *dev) { return 0; } +static inline int pinctrl_pm_select_init_state(struct device *dev) +{ + return 0; +} static inline int pinctrl_pm_select_sleep_state(struct device *dev) { return 0;
@@ -143,6 +148,11 @@ static inline int pinctrl_pm_select_default_state(struct device *dev) return 0; } +static inline int pinctrl_pm_select_init_state(struct device *dev) +{ + return 0; +} + static inline int pinctrl_pm_select_sleep_state(struct device *dev) { return 0;
--
2.34.1