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Message-ID: <20241022155658.1647350-10-antonio.borneo@foss.st.com>
Date: Tue, 22 Oct 2024 17:56:53 +0200
From: Antonio Borneo <antonio.borneo@...s.st.com>
To: Linus Walleij <linus.walleij@...aro.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue
<alexandre.torgue@...s.st.com>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>, <linux-gpio@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>
CC: Antonio Borneo <antonio.borneo@...s.st.com>,
<linux-kernel@...r.kernel.org>,
Clément Le Goffic
<clement.legoffic@...s.st.com>,
Stephane Danieau
<stephane.danieau@...s.st.com>,
Amelie Delaunay
<amelie.delaunay@...s.st.com>,
Fabien Dessenne <fabien.dessenne@...s.st.com>,
Valentin Caron <valentin.caron@...s.st.com>,
Gatien Chevallier
<gatien.chevallier@...s.st.com>,
Cheick Traore <cheick.traore@...s.st.com>,
<linux-stm32@...md-mailman.stormreply.com>
Subject: [PATCH 09/14] pinctrl: stm32: Allow compile as module for stm32mp257
From: Stephane Danieau <stephane.danieau@...s.st.com>
Add ability to build pinctrl for stm32mp257 as a kernel module.
Add kernel-doc to the exported symbols.
Drop the Kconfig symbol MACH_STM32MP25, as it has never been
defined.
Signed-off-by: Stephane Danieau <stephane.danieau@...s.st.com>
Signed-off-by: Antonio Borneo <antonio.borneo@...s.st.com>
---
arch/arm64/Kconfig.platforms | 1 -
drivers/pinctrl/stm32/Kconfig | 6 +++---
drivers/pinctrl/stm32/pinctrl-stm32.c | 7 +++++++
drivers/pinctrl/stm32/pinctrl-stm32.h | 14 ++++++++++++++
drivers/pinctrl/stm32/pinctrl-stm32mp257.c | 11 ++++++-----
5 files changed, 30 insertions(+), 9 deletions(-)
diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 6c6d11536b42e..ab77cc49b4ed7 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -308,7 +308,6 @@ config ARCH_STM32
bool "STMicroelectronics STM32 SoC Family"
select GPIOLIB
select PINCTRL
- select PINCTRL_STM32MP257
select ARM_SMC_MBOX
select ARM_SCMI_PROTOCOL
select REGULATOR
diff --git a/drivers/pinctrl/stm32/Kconfig b/drivers/pinctrl/stm32/Kconfig
index 2656d3d3ae402..6c18ac9cdeec2 100644
--- a/drivers/pinctrl/stm32/Kconfig
+++ b/drivers/pinctrl/stm32/Kconfig
@@ -2,7 +2,7 @@
if ARCH_STM32 || COMPILE_TEST
config PINCTRL_STM32
- bool
+ tristate
depends on OF
select PINMUX
select GENERIC_PINCONF
@@ -53,8 +53,8 @@ config PINCTRL_STM32MP157
select PINCTRL_STM32
config PINCTRL_STM32MP257
- bool "STMicroelectronics STM32MP257 pin control" if COMPILE_TEST && !MACH_STM32MP25
+ tristate "STMicroelectronics STM32MP257 pin control"
depends on OF && HAS_IOMEM
- default MACH_STM32MP25
+ default ARM64 || COMPILE_TEST
select PINCTRL_STM32
endif
diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c
index b6e7e34508592..5da2114b81420 100644
--- a/drivers/pinctrl/stm32/pinctrl-stm32.c
+++ b/drivers/pinctrl/stm32/pinctrl-stm32.c
@@ -1954,6 +1954,7 @@ int stm32_pctl_probe(struct platform_device *pdev)
return 0;
}
+EXPORT_SYMBOL(stm32_pctl_probe);
static int __maybe_unused stm32_pinctrl_restore_advcfgr(struct stm32_gpio_bank *bank,
int offset, u32 bpos)
@@ -2062,6 +2063,7 @@ int __maybe_unused stm32_pinctrl_suspend(struct device *dev)
return 0;
}
+EXPORT_SYMBOL(stm32_pinctrl_suspend);
int __maybe_unused stm32_pinctrl_resume(struct device *dev)
{
@@ -2077,3 +2079,8 @@ int __maybe_unused stm32_pinctrl_resume(struct device *dev)
return 0;
}
+EXPORT_SYMBOL(stm32_pinctrl_resume);
+
+MODULE_AUTHOR("Alexandre Torgue <alexandre.torgue@...s.st.com>");
+MODULE_DESCRIPTION("STM32 core pinctrl driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.h b/drivers/pinctrl/stm32/pinctrl-stm32.h
index b8caebc55cfc5..d17cbdbba4482 100644
--- a/drivers/pinctrl/stm32/pinctrl-stm32.h
+++ b/drivers/pinctrl/stm32/pinctrl-stm32.h
@@ -68,8 +68,22 @@ struct stm32_pinctrl_match_data {
bool rif_control;
};
+/**
+ * stm32_pctl_probe() - Common probe for stm32 pinctrl drivers.
+ * @pdev: Pinctrl platform device.
+ */
int stm32_pctl_probe(struct platform_device *pdev);
+
+/**
+ * stm32_pinctrl_suspend() - Common suspend for stm32 pinctrl drivers.
+ * @dev: Pinctrl device.
+ */
int stm32_pinctrl_suspend(struct device *dev);
+
+/**
+ * stm32_pinctrl_resume() - Common resume for stm32 pinctrl drivers.
+ * @dev: Pinctrl device.
+ */
int stm32_pinctrl_resume(struct device *dev);
#endif /* __PINCTRL_STM32_H */
diff --git a/drivers/pinctrl/stm32/pinctrl-stm32mp257.c b/drivers/pinctrl/stm32/pinctrl-stm32mp257.c
index a374918030788..6709bddd97186 100644
--- a/drivers/pinctrl/stm32/pinctrl-stm32mp257.c
+++ b/drivers/pinctrl/stm32/pinctrl-stm32mp257.c
@@ -4,6 +4,7 @@
* Author: Alexandre Torgue <alexandre.torgue@...s.st.com> for STMicroelectronics.
*/
#include <linux/init.h>
+#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
@@ -2566,6 +2567,7 @@ static const struct of_device_id stm32mp257_pctrl_match[] = {
},
{ }
};
+MODULE_DEVICE_TABLE(of, stm32mp257_pctrl_match);
static const struct dev_pm_ops stm32_pinctrl_dev_pm_ops = {
SET_LATE_SYSTEM_SLEEP_PM_OPS(stm32_pinctrl_suspend, stm32_pinctrl_resume)
@@ -2579,9 +2581,8 @@ static struct platform_driver stm32mp257_pinctrl_driver = {
.pm = &stm32_pinctrl_dev_pm_ops,
},
};
+module_platform_driver(stm32mp257_pinctrl_driver);
-static int __init stm32mp257_pinctrl_init(void)
-{
- return platform_driver_register(&stm32mp257_pinctrl_driver);
-}
-arch_initcall(stm32mp257_pinctrl_init);
+MODULE_AUTHOR("Alexandre Torgue <alexandre.torgue@...s.st.com>");
+MODULE_DESCRIPTION("STM32MP257 pinctrl driver");
+MODULE_LICENSE("GPL");
--
2.34.1
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