Message-Id: <20230208173343.37582-8-andriy.shevchenko@linux.intel.com>
Date:   Wed,  8 Feb 2023 19:33:32 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Arnd Bergmann <arnd@...db.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
        Tony Lindgren <tony@...mide.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Vincenzo Palazzo <vincenzopalazzodev@...il.com>,
        Devarsh Thakkar <devarsht@...com>,
        Michael Walle <michael@...le.cc>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Dipen Patel <dipenp@...dia.com>,
        Thierry Reding <treding@...dia.com>,
        Stefan Schmidt <stefan@...enfreihafen.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Lee Jones <lee@...nel.org>, linux-gpio@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-doc-tw-discuss@...ts.sourceforge.net,
        linux-arm-kernel@...ts.infradead.org, linux-omap@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org, linux-m68k@...ts.linux-m68k.org,
        linuxppc-dev@...ts.ozlabs.org, linux-sh@...r.kernel.org,
        linux-acpi@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-input@...r.kernel.org, linux-media@...r.kernel.org,
        linux-wpan@...r.kernel.org, netdev@...r.kernel.org,
        linux-wireless@...r.kernel.org,
        brcm80211-dev-list.pdl@...adcom.com,
        SHA-cyfmac-dev-list@...ineon.com, linux-arch@...r.kernel.org,
        devicetree@...r.kernel.org
Cc:     Bartosz Golaszewski <brgl@...ev.pl>,
        Jonathan Corbet <corbet@....net>, Alex Shi <alexs@...nel.org>,
        Yanteng Si <siyanteng@...ngson.cn>,
        Hu Haowen <src.res@...il.cn>,
        Russell King <linux@...linux.org.uk>,
        Aaro Koskinen <aaro.koskinen@....fi>,
        Janusz Krzysztofik <jmkrzyszt@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Nicholas Piggin <npiggin@...il.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Mun Yew Tham <mun.yew.tham@...el.com>,
        Keerthy <j-keerthy@...com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Alexander Aring <alex.aring@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Arend van Spriel <aspriel@...il.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        Kalle Valo <kvalo@...nel.org>, Qiang Zhao <qiang.zhao@....com>,
        Li Yang <leoyang.li@....com>, Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>
Subject: [PATCH v4 07/18] gpiolib: remove asm-generic/gpio.h

From: Arnd Bergmann <arnd@...db.de>

The asm-generic/gpio.h file is now always included when
using gpiolib, so just move its contents into linux/gpio.h
with a few minor simplifications.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 MAINTAINERS                     |   1 -
 arch/m68k/include/asm/mcfgpio.h |   2 +-
 drivers/gpio/gpio-davinci.c     |   2 -
 drivers/pinctrl/core.c          |   1 -
 include/asm-generic/gpio.h      | 146 --------------------------------
 include/linux/gpio.h            |  94 +++++++++++++++++---
 6 files changed, 85 insertions(+), 161 deletions(-)
 delete mode 100644 include/asm-generic/gpio.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 94971603568b..955a513ac504 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8730,7 +8730,6 @@ F:	Documentation/admin-guide/gpio/
 F:	Documentation/devicetree/bindings/gpio/
 F:	Documentation/driver-api/gpio/
 F:	drivers/gpio/
-F:	include/asm-generic/gpio.h
 F:	include/dt-bindings/gpio/
 F:	include/linux/gpio.h
 F:	include/linux/gpio/
diff --git a/arch/m68k/include/asm/mcfgpio.h b/arch/m68k/include/asm/mcfgpio.h
index 27f32cc81da6..2cefe8445980 100644
--- a/arch/m68k/include/asm/mcfgpio.h
+++ b/arch/m68k/include/asm/mcfgpio.h
@@ -9,7 +9,7 @@
 #define mcfgpio_h
 
 #ifdef CONFIG_GPIOLIB
-#include <asm-generic/gpio.h>
+#include <linux/gpio.h>
 #else
 
 int __mcfgpio_get_value(unsigned gpio);
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index 26b1f7465e09..7fc83057990a 100644
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -24,8 +24,6 @@
 #include <linux/spinlock.h>
 #include <linux/pm_runtime.h>
 
-#include <asm-generic/gpio.h>
-
 #define MAX_REGS_BANKS 5
 #define MAX_INT_PER_BANK 32
 
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index d6e6c751255f..401886c81344 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -30,7 +30,6 @@
 
 #ifdef CONFIG_GPIOLIB
 #include "../gpio/gpiolib.h"
-#include <asm-generic/gpio.h>
 #endif
 
 #include "core.h"
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
deleted file mode 100644
index 1c910d124423..000000000000
--- a/include/asm-generic/gpio.h
+++ /dev/null
@@ -1,146 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_GENERIC_GPIO_H
-#define _ASM_GENERIC_GPIO_H
-
-#include <linux/types.h>
-#include <linux/errno.h>
-
-#ifdef CONFIG_GPIOLIB
-
-#include <linux/compiler.h>
-#include <linux/gpio/consumer.h>
-
-/*
- * Platforms may implement their GPIO interface with library code,
- * at a small performance cost for non-inlined operations and some
- * extra memory (for code and for per-GPIO table entries).
- */
-
-/*
- * At the end we want all GPIOs to be dynamically allocated from 0.
- * However, some legacy drivers still perform fixed allocation.
- * Until they are all fixed, leave 0-512 space for them.
- */
-#define GPIO_DYNAMIC_BASE	512
-
-struct device;
-struct gpio;
-struct seq_file;
-struct module;
-struct device_node;
-struct gpio_desc;
-
-/* Always use the library code for GPIO management calls,
- * or when sleeping may be involved.
- */
-extern int gpio_request(unsigned gpio, const char *label);
-extern void gpio_free(unsigned gpio);
-
-static inline int gpio_direction_input(unsigned gpio)
-{
-	return gpiod_direction_input(gpio_to_desc(gpio));
-}
-static inline int gpio_direction_output(unsigned gpio, int value)
-{
-	return gpiod_direction_output_raw(gpio_to_desc(gpio), value);
-}
-
-static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
-{
-	return gpiod_set_debounce(gpio_to_desc(gpio), debounce);
-}
-
-static inline int gpio_get_value_cansleep(unsigned gpio)
-{
-	return gpiod_get_raw_value_cansleep(gpio_to_desc(gpio));
-}
-static inline void gpio_set_value_cansleep(unsigned gpio, int value)
-{
-	return gpiod_set_raw_value_cansleep(gpio_to_desc(gpio), value);
-}
-
-
-/* A platform's <asm/gpio.h> code may want to inline the I/O calls when
- * the GPIO is constant and refers to some always-present controller,
- * giving direct access to chip registers and tight bitbanging loops.
- */
-static inline int __gpio_get_value(unsigned gpio)
-{
-	return gpiod_get_raw_value(gpio_to_desc(gpio));
-}
-static inline void __gpio_set_value(unsigned gpio, int value)
-{
-	return gpiod_set_raw_value(gpio_to_desc(gpio), value);
-}
-
-static inline int __gpio_cansleep(unsigned gpio)
-{
-	return gpiod_cansleep(gpio_to_desc(gpio));
-}
-
-static inline int __gpio_to_irq(unsigned gpio)
-{
-	return gpiod_to_irq(gpio_to_desc(gpio));
-}
-
-extern int gpio_request_one(unsigned gpio, unsigned long flags, const char *label);
-extern int gpio_request_array(const struct gpio *array, size_t num);
-extern void gpio_free_array(const struct gpio *array, size_t num);
-
-/*
- * A sysfs interface can be exported by individual drivers if they want,
- * but more typically is configured entirely from userspace.
- */
-static inline int gpio_export(unsigned gpio, bool direction_may_change)
-{
-	return gpiod_export(gpio_to_desc(gpio), direction_may_change);
-}
-
-static inline void gpio_unexport(unsigned gpio)
-{
-	gpiod_unexport(gpio_to_desc(gpio));
-}
-
-#else	/* !CONFIG_GPIOLIB */
-
-#include <linux/kernel.h>
-
-/* platforms that don't directly support access to GPIOs through I2C, SPI,
- * or other blocking infrastructure can use these wrappers.
- */
-
-static inline int gpio_cansleep(unsigned gpio)
-{
-	return 0;
-}
-
-static inline int gpio_get_value_cansleep(unsigned gpio)
-{
-	might_sleep();
-	return __gpio_get_value(gpio);
-}
-
-static inline void gpio_set_value_cansleep(unsigned gpio, int value)
-{
-	might_sleep();
-	__gpio_set_value(gpio, value);
-}
-
-#endif /* !CONFIG_GPIOLIB */
-
-/*
- * "valid" GPIO numbers are nonnegative and may be passed to
- * setup routines like gpio_request().  only some valid numbers
- * can successfully be requested and used.
- *
- * Invalid GPIO numbers are useful for indicating no-such-GPIO in
- * platform data and other tables.
- */
-
-static inline bool gpio_is_valid(int number)
-{
-	/* only non-negative numbers are valid */
-	return number >= 0;
-}
-
-#endif /* _ASM_GENERIC_GPIO_H */
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index 2b75017b3aad..d5ce78e2bdd9 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -13,6 +13,7 @@
 #define __LINUX_GPIO_H
 
 #include <linux/errno.h>
+#include <linux/types.h>
 
 /* see Documentation/driver-api/gpio/legacy.rst */
 
@@ -54,26 +55,100 @@ struct gpio {
 };
 
 #ifdef CONFIG_GPIOLIB
-#include <asm-generic/gpio.h>
 
-static inline int gpio_get_value(unsigned int gpio)
+#include <linux/gpio/consumer.h>
+
+/*
+ * "valid" GPIO numbers are nonnegative and may be passed to
+ * setup routines like gpio_request().  Only some valid numbers
+ * can successfully be requested and used.
+ *
+ * Invalid GPIO numbers are useful for indicating no-such-GPIO in
+ * platform data and other tables.
+ */
+static inline bool gpio_is_valid(int number)
+{
+	/* only non-negative numbers are valid */
+	return number >= 0;
+}
+
+/*
+ * Platforms may implement their GPIO interface with library code,
+ * at a small performance cost for non-inlined operations and some
+ * extra memory (for code and for per-GPIO table entries).
+ */
+
+/*
+ * At the end we want all GPIOs to be dynamically allocated from 0.
+ * However, some legacy drivers still perform fixed allocation.
+ * Until they are all fixed, leave 0-512 space for them.
+ */
+#define GPIO_DYNAMIC_BASE	512
+
+/* Always use the library code for GPIO management calls,
+ * or when sleeping may be involved.
+ */
+int gpio_request(unsigned gpio, const char *label);
+void gpio_free(unsigned gpio);
+
+static inline int gpio_direction_input(unsigned gpio)
+{
+	return gpiod_direction_input(gpio_to_desc(gpio));
+}
+static inline int gpio_direction_output(unsigned gpio, int value)
+{
+	return gpiod_direction_output_raw(gpio_to_desc(gpio), value);
+}
+
+static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
+{
+	return gpiod_set_debounce(gpio_to_desc(gpio), debounce);
+}
+
+static inline int gpio_get_value_cansleep(unsigned gpio)
+{
+	return gpiod_get_raw_value_cansleep(gpio_to_desc(gpio));
+}
+static inline void gpio_set_value_cansleep(unsigned gpio, int value)
 {
-	return __gpio_get_value(gpio);
+	return gpiod_set_raw_value_cansleep(gpio_to_desc(gpio), value);
 }
 
-static inline void gpio_set_value(unsigned int gpio, int value)
+static inline int gpio_get_value(unsigned gpio)
+{
+	return gpiod_get_raw_value(gpio_to_desc(gpio));
+}
+static inline void gpio_set_value(unsigned gpio, int value)
 {
-	__gpio_set_value(gpio, value);
+	return gpiod_set_raw_value(gpio_to_desc(gpio), value);
 }
 
-static inline int gpio_cansleep(unsigned int gpio)
+static inline int gpio_cansleep(unsigned gpio)
 {
-	return __gpio_cansleep(gpio);
+	return gpiod_cansleep(gpio_to_desc(gpio));
 }
 
-static inline int gpio_to_irq(unsigned int gpio)
+static inline int gpio_to_irq(unsigned gpio)
 {
-	return __gpio_to_irq(gpio);
+	return gpiod_to_irq(gpio_to_desc(gpio));
+}
+
+int gpio_request_one(unsigned gpio, unsigned long flags, const char *label);
+int gpio_request_array(const struct gpio *array, size_t num);
+void gpio_free_array(const struct gpio *array, size_t num);
+
+/*
+ * A sysfs interface can be exported by individual drivers if they want,
+ * but more typically is configured entirely from userspace.
+ */
+static inline int gpio_export(unsigned gpio, bool direction_may_change)
+{
+	return gpiod_export(gpio_to_desc(gpio), direction_may_change);
+}
+
+static inline void gpio_unexport(unsigned gpio)
+{
+	gpiod_unexport(gpio_to_desc(gpio));
 }
 
 /* CONFIG_GPIOLIB: bindings for managed devices that want to request gpios */
@@ -88,7 +163,6 @@ int devm_gpio_request_one(struct device *dev, unsigned gpio,
 
 #include <linux/bug.h>
 #include <linux/kernel.h>
-#include <linux/types.h>
 
 struct device;
 struct gpio_chip;
-- 
2.39.1

Powered by blists - more mailing lists