linux-kernel - [PATCH v3 01/17] pinctrl: intel: Provide Intel pin control wide PM ops structure

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Message-Id: <20231030120734.2831419-2-andriy.shevchenko@linux.intel.com>
Date:   Mon, 30 Oct 2023 14:07:18 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Andy Shevchenko <andy@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Paul Cercueil <paul@...pouillou.net>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: [PATCH v3 01/17] pinctrl: intel: Provide Intel pin control wide PM ops structure

With the help of EXPORT_NS_GPL_DEV_PM_OPS() and
NOIRQ_SYSTEM_SLEEP_PM_OPS() we may convert PM ops functions to become
static. This also takes into account the PM configuration options such
as CONFIG_PM and CONFIG_PM_SLEEP. Hence the first step is to provide
a generic PM ops structure that can be used by drivers directly.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/pinctrl/intel/pinctrl-intel.c | 8 +++++---
 drivers/pinctrl/intel/pinctrl-intel.h | 4 ++--
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index b19527a8728e..9fbdc7bfa65c 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -899,7 +899,7 @@ static int intel_gpio_to_pin(struct intel_pinctrl *pctrl, unsigned int offset,
  *
  * Return: a GPIO offset, or negative error code if translation can't be done.
  */
-static __maybe_unused int intel_pin_to_gpio(struct intel_pinctrl *pctrl, int pin)
+static int intel_pin_to_gpio(struct intel_pinctrl *pctrl, int pin)
 {
 	const struct intel_community *community;
 	const struct intel_padgroup *padgrp;
@@ -1682,7 +1682,6 @@ const struct intel_pinctrl_soc_data *intel_pinctrl_get_soc_data(struct platform_
 }
 EXPORT_SYMBOL_NS_GPL(intel_pinctrl_get_soc_data, PINCTRL_INTEL);
 
-#ifdef CONFIG_PM_SLEEP
 static bool __intel_gpio_is_direct_irq(u32 value)
 {
 	return (value & PADCFG0_GPIROUTIOXAPIC) && (value & PADCFG0_GPIOTXDIS) &&
@@ -1883,7 +1882,10 @@ int intel_pinctrl_resume_noirq(struct device *dev)
 	return 0;
 }
 EXPORT_SYMBOL_GPL(intel_pinctrl_resume_noirq);
-#endif
+
+EXPORT_NS_GPL_DEV_PM_OPS(intel_pinctrl_pm_ops, PINCTRL_INTEL) = {
+	NOIRQ_SYSTEM_SLEEP_PM_OPS(intel_pinctrl_suspend_noirq, intel_pinctrl_resume_noirq)
+};
 
 MODULE_AUTHOR("Mathias Nyman <mathias.nyman@...ux.intel.com>");
 MODULE_AUTHOR("Mika Westerberg <mika.westerberg@...ux.intel.com>");
diff --git a/drivers/pinctrl/intel/pinctrl-intel.h b/drivers/pinctrl/intel/pinctrl-intel.h
index 2bb553598e8b..d3f511f97ed9 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.h
+++ b/drivers/pinctrl/intel/pinctrl-intel.h
@@ -255,10 +255,8 @@ struct intel_pinctrl {
 int intel_pinctrl_probe_by_hid(struct platform_device *pdev);
 int intel_pinctrl_probe_by_uid(struct platform_device *pdev);
 
-#ifdef CONFIG_PM_SLEEP
 int intel_pinctrl_suspend_noirq(struct device *dev);
 int intel_pinctrl_resume_noirq(struct device *dev);
-#endif
 
 #define INTEL_PINCTRL_PM_OPS(_name)					\
 const struct dev_pm_ops _name = {					\
@@ -266,6 +264,8 @@ const struct dev_pm_ops _name = {					\
 				      intel_pinctrl_resume_noirq)	\
 }
 
+extern const struct dev_pm_ops intel_pinctrl_pm_ops;
+
 struct intel_community *intel_get_community(struct intel_pinctrl *pctrl, unsigned int pin);
 
 int intel_get_groups_count(struct pinctrl_dev *pctldev);
-- 
2.40.0.1.gaa8946217a0b