linux-kernel - [PATCH 01/17] gpiolib: move gpiolib-sysfs function declarations into their own header

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Message-Id: <20200708041600.768775-2-warthog618@gmail.com>
Date:   Wed,  8 Jul 2020 12:15:44 +0800
From:   Kent Gibson <warthog618@...il.com>
To:     linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        bgolaszewski@...libre.com, linus.walleij@...aro.org
Cc:     Kent Gibson <warthog618@...il.com>
Subject: [PATCH 01/17] gpiolib: move gpiolib-sysfs function declarations into their own header

Move gpiolib-sysfs function declarations into their own header.

These functions are in gpiolib-sysfs.c, and are only required by gpiolib.c,
and so should be in a module header, not gpiolib.h.

This brings gpiolib-sysfs into line with gpiolib-cdev, and is another step
towards removing the sysfs inferface.

Signed-off-by: Kent Gibson <warthog618@...il.com>
---
 drivers/gpio/gpiolib-sysfs.c |  1 +
 drivers/gpio/gpiolib-sysfs.h | 24 ++++++++++++++++++++++++
 drivers/gpio/gpiolib.c       |  1 +
 drivers/gpio/gpiolib.h       | 18 ------------------
 4 files changed, 26 insertions(+), 18 deletions(-)
 create mode 100644 drivers/gpio/gpiolib-sysfs.h

diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c
index 82371fe2ccc6..728f6c687182 100644
--- a/drivers/gpio/gpiolib-sysfs.c
+++ b/drivers/gpio/gpiolib-sysfs.c
@@ -11,6 +11,7 @@
 #include <linux/ctype.h>
 
 #include "gpiolib.h"
+#include "gpiolib-sysfs.h"
 
 #define GPIO_IRQF_TRIGGER_FALLING	BIT(0)
 #define GPIO_IRQF_TRIGGER_RISING	BIT(1)
diff --git a/drivers/gpio/gpiolib-sysfs.h b/drivers/gpio/gpiolib-sysfs.h
new file mode 100644
index 000000000000..ddd0e503f8eb
--- /dev/null
+++ b/drivers/gpio/gpiolib-sysfs.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef GPIOLIB_SYSFS_H
+#define GPIOLIB_SYSFS_H
+
+#ifdef CONFIG_GPIO_SYSFS
+
+int gpiochip_sysfs_register(struct gpio_device *gdev);
+void gpiochip_sysfs_unregister(struct gpio_device *gdev);
+
+#else
+
+static inline int gpiochip_sysfs_register(struct gpio_device *gdev)
+{
+	return 0;
+}
+
+static inline void gpiochip_sysfs_unregister(struct gpio_device *gdev)
+{
+}
+
+#endif /* CONFIG_GPIO_SYSFS */
+
+#endif /* GPIOLIB_SYSFS_H */
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 291c088a5964..4d267c69482c 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -26,6 +26,7 @@
 #include "gpiolib-of.h"
 #include "gpiolib-acpi.h"
 #include "gpiolib-cdev.h"
+#include "gpiolib-sysfs.h"
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/gpio.h>
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
index 9ed242316414..2dee4e1e12dc 100644
--- a/drivers/gpio/gpiolib.h
+++ b/drivers/gpio/gpiolib.h
@@ -175,22 +175,4 @@ static inline int gpio_chip_hwgpio(const struct gpio_desc *desc)
 #define chip_dbg(gc, fmt, ...)					\
 	dev_dbg(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
 
-#ifdef CONFIG_GPIO_SYSFS
-
-int gpiochip_sysfs_register(struct gpio_device *gdev);
-void gpiochip_sysfs_unregister(struct gpio_device *gdev);
-
-#else
-
-static inline int gpiochip_sysfs_register(struct gpio_device *gdev)
-{
-	return 0;
-}
-
-static inline void gpiochip_sysfs_unregister(struct gpio_device *gdev)
-{
-}
-
-#endif /* CONFIG_GPIO_SYSFS */
-
 #endif /* GPIOLIB_H */
-- 
2.27.0