Thread (26 messages) flat view 26 messages, 6 authors, 2012-09-04
STALE5084d

[PATCH 10/10] ARM: make mach/gpio.h headers optional

From: Rob Herring <hidden>
Date: 2012-08-29 22:31:36
Subsystem: arm integrator, versatile and realview support, arm port, arm/calxeda highbank architecture, arm/cirrus logic ep93xx arm architecture, arm/intel ixp4xx arm architecture, arm/nomadik/ux500 architectures, arm/versatile express platform, arm/vt8500 arm architecture, mmp support, pxa2xx/pxa3xx support, the rest · Maintainers: Linus Walleij, Russell King, Andre Przywara, Hartley Sweeten, Alexander Sverdlin, Nikita Shubin, Imre Kaloz, Liviu Dudau, Sudeep Holla, Lorenzo Pieralisi, Alexey Charkov, Krzysztof Kozlowski, Daniel Mack, Haojian Zhuang, Robert Jarzmik, Linus Torvalds

From: Rob Herring <redacted>

Most platforms don't need mach/gpio.h and it prevents multi-platform
kernel images. Add CONFIG_NEED_MACH_GPIO_H and make platforns select it
if they need gpio.h. This is platforms that define __GPIOLIB_COMPLEX
or have lots of implicit includes pulled in by mach/gpio.h.

Signed-off-by: Rob Herring <redacted>
---
 arch/arm/Kconfig                            |   17 ++++++++++++++
 arch/arm/include/asm/gpio.h                 |    2 ++
 arch/arm/mach-ep93xx/include/mach/gpio.h    |    1 -
 arch/arm/mach-highbank/include/mach/gpio.h  |    1 -
 arch/arm/mach-ixp4xx/include/mach/gpio.h    |    2 --
 arch/arm/mach-mmp/include/mach/gpio.h       |    8 -------
 arch/arm/mach-msm/include/mach/gpio.h       |    1 -
 arch/arm/mach-mxs/include/mach/gpio.h       |    1 -
 arch/arm/mach-nomadik/include/mach/gpio.h   |    4 ----
 arch/arm/mach-picoxcell/include/mach/gpio.h |    1 -
 arch/arm/mach-pxa/include/mach/gpio.h       |   32 ---------------------------
 arch/arm/mach-realview/include/mach/gpio.h  |    1 -
 arch/arm/mach-spear13xx/include/mach/gpio.h |   19 ----------------
 arch/arm/mach-spear3xx/include/mach/gpio.h  |   19 ----------------
 arch/arm/mach-spear6xx/include/mach/gpio.h  |   19 ----------------
 arch/arm/mach-tegra/include/mach/gpio.h     |    1 -
 arch/arm/mach-u300/include/mach/gpio.h      |    1 -
 arch/arm/mach-ux500/include/mach/gpio.h     |    5 -----
 arch/arm/mach-versatile/include/mach/gpio.h |    1 -
 arch/arm/mach-vexpress/include/mach/gpio.h  |    1 -
 arch/arm/mach-vt8500/include/mach/gpio.h    |    1 -
 arch/arm/plat-mxc/include/mach/gpio.h       |    1 -
 arch/arm/plat-spear/include/plat/gpio.h     |    1 -
 23 files changed, 19 insertions(+), 121 deletions(-)
 delete mode 100644 arch/arm/mach-ep93xx/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-highbank/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-ixp4xx/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-mmp/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-msm/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-mxs/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-nomadik/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-picoxcell/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-pxa/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-realview/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-spear13xx/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-spear3xx/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-spear6xx/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-tegra/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-u300/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-ux500/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-versatile/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-vexpress/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-vt8500/include/mach/gpio.h
 delete mode 100644 arch/arm/plat-mxc/include/mach/gpio.h
 delete mode 100644 arch/arm/plat-spear/include/plat/gpio.h
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 6d6e18f..3557f12 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -202,6 +202,13 @@ config ARM_PATCH_PHYS_VIRT
 	  this feature (eg, building a kernel for a single machine) and
 	  you need to shrink the kernel to the minimal size.
 
+config NEED_MACH_GPIO_H
+	bool
+	help
+	  Select this when mach/gpio.h is required to provide special
+	  definitions for this platform. The need for mach/gpio.h should
+	  be avoided when possible.
+
 config NEED_MACH_IO_H
 	bool
 	help
@@ -523,6 +530,7 @@ config ARCH_IOP32X
 	bool "IOP32x-based"
 	depends on MMU
 	select CPU_XSCALE
+	select NEED_MACH_GPIO_H
 	select NEED_MACH_IO_H
 	select NEED_RET_TO_USER
 	select PLAT_IOP
@@ -536,6 +544,7 @@ config ARCH_IOP33X
 	bool "IOP33x-based"
 	depends on MMU
 	select CPU_XSCALE
+	select NEED_MACH_GPIO_H
 	select NEED_MACH_IO_H
 	select NEED_RET_TO_USER
 	select PLAT_IOP
@@ -795,6 +804,7 @@ config ARCH_SA1100
 	select CLKDEV_LOOKUP
 	select ARCH_REQUIRE_GPIOLIB
 	select HAVE_IDE
+	select NEED_MACH_GPIO_H
 	select NEED_MACH_MEMORY_H
 	select SPARSE_IRQ
 	help
@@ -810,6 +820,7 @@ config ARCH_S3C24XX
 	select HAVE_S3C2410_I2C if I2C
 	select HAVE_S3C_RTC if RTC_CLASS
 	select HAVE_S3C2410_WATCHDOG if WATCHDOG
+	select NEED_MACH_GPIO_H
 	select NEED_MACH_IO_H
 	help
 	  Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
@@ -837,6 +848,7 @@ config ARCH_S3C64XX
 	select SAMSUNG_GPIOLIB_4BIT
 	select HAVE_S3C2410_I2C if I2C
 	select HAVE_S3C2410_WATCHDOG if WATCHDOG
+	select NEED_MACH_GPIO_H
 	help
 	  Samsung S3C64XX series based systems
 
@@ -851,6 +863,7 @@ config ARCH_S5P64X0
 	select GENERIC_CLOCKEVENTS
 	select HAVE_S3C2410_I2C if I2C
 	select HAVE_S3C_RTC if RTC_CLASS
+	select NEED_MACH_GPIO_H
 	help
 	  Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
 	  SMDK6450.
@@ -865,6 +878,7 @@ config ARCH_S5PC100
 	select HAVE_S3C2410_I2C if I2C
 	select HAVE_S3C_RTC if RTC_CLASS
 	select HAVE_S3C2410_WATCHDOG if WATCHDOG
+	select NEED_MACH_GPIO_H
 	help
 	  Samsung S5PC100 series based systems
 
@@ -882,6 +896,7 @@ config ARCH_S5PV210
 	select HAVE_S3C2410_I2C if I2C
 	select HAVE_S3C_RTC if RTC_CLASS
 	select HAVE_S3C2410_WATCHDOG if WATCHDOG
+	select NEED_MACH_GPIO_H
 	select NEED_MACH_MEMORY_H
 	help
 	  Samsung S5PV210/S5PC110 series based systems
@@ -899,6 +914,7 @@ config ARCH_EXYNOS
 	select HAVE_S3C_RTC if RTC_CLASS
 	select HAVE_S3C2410_I2C if I2C
 	select HAVE_S3C2410_WATCHDOG if WATCHDOG
+	select NEED_MACH_GPIO_H
 	select NEED_MACH_MEMORY_H
 	help
 	  Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
@@ -971,6 +987,7 @@ config ARCH_DAVINCI
 	select GENERIC_ALLOCATOR
 	select GENERIC_IRQ_CHIP
 	select ARCH_HAS_HOLES_MEMORYMODEL
+	select NEED_MACH_GPIO_H
 	help
 	  Support for TI's DaVinci platform.
 
diff --git a/arch/arm/include/asm/gpio.h b/arch/arm/include/asm/gpio.h
index c402e9b..477e020 100644
--- a/arch/arm/include/asm/gpio.h
+++ b/arch/arm/include/asm/gpio.h
@@ -6,7 +6,9 @@
 #endif
 
 /* not all ARM platforms necessarily support this API ... */
+#ifdef CONFIG_NEED_MACH_GPIO_H
 #include <mach/gpio.h>
+#endif
 
 #ifndef __ARM_GPIOLIB_COMPLEX
 /* Note: this may rely upon the value of ARCH_NR_GPIOS set in mach/gpio.h */
diff --git a/arch/arm/mach-ep93xx/include/mach/gpio.h b/arch/arm/mach-ep93xx/include/mach/gpio.h
deleted file mode 100644
index 40a8c17..0000000
--- a/arch/arm/mach-ep93xx/include/mach/gpio.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/mach-highbank/include/mach/gpio.h b/arch/arm/mach-highbank/include/mach/gpio.h
deleted file mode 100644
index 40a8c17..0000000
--- a/arch/arm/mach-highbank/include/mach/gpio.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/mach-ixp4xx/include/mach/gpio.h b/arch/arm/mach-ixp4xx/include/mach/gpio.h
deleted file mode 100644
index ef37f26..0000000
--- a/arch/arm/mach-ixp4xx/include/mach/gpio.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* empty */
-
diff --git a/arch/arm/mach-mmp/include/mach/gpio.h b/arch/arm/mach-mmp/include/mach/gpio.h
deleted file mode 100644
index 13219eb..0000000
--- a/arch/arm/mach-mmp/include/mach/gpio.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef __ASM_MACH_GPIO_H
-#define __ASM_MACH_GPIO_H
-
-#include <asm-generic/gpio.h>
-
-#include <mach/cputype.h>
-
-#endif /* __ASM_MACH_GPIO_H */
diff --git a/arch/arm/mach-msm/include/mach/gpio.h b/arch/arm/mach-msm/include/mach/gpio.h
deleted file mode 100644
index 40a8c17..0000000
--- a/arch/arm/mach-msm/include/mach/gpio.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/mach-mxs/include/mach/gpio.h b/arch/arm/mach-mxs/include/mach/gpio.h
deleted file mode 100644
index 40a8c17..0000000
--- a/arch/arm/mach-mxs/include/mach/gpio.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/mach-nomadik/include/mach/gpio.h b/arch/arm/mach-nomadik/include/mach/gpio.h
deleted file mode 100644
index efdde0a..0000000
--- a/arch/arm/mach-nomadik/include/mach/gpio.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#ifndef __ASM_ARCH_GPIO_H
-#define __ASM_ARCH_GPIO_H
-
-#endif /* __ASM_ARCH_GPIO_H */
diff --git a/arch/arm/mach-picoxcell/include/mach/gpio.h b/arch/arm/mach-picoxcell/include/mach/gpio.h
deleted file mode 100644
index 40a8c17..0000000
--- a/arch/arm/mach-picoxcell/include/mach/gpio.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/mach-pxa/include/mach/gpio.h b/arch/arm/mach-pxa/include/mach/gpio.h
deleted file mode 100644
index 0248e43..0000000
--- a/arch/arm/mach-pxa/include/mach/gpio.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * arch/arm/mach-pxa/include/mach/gpio.h
- *
- * PXA GPIO wrappers for arch-neutral GPIO calls
- *
- * Written by Philipp Zabel <philipp.zabel@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#ifndef __ASM_ARCH_PXA_GPIO_H
-#define __ASM_ARCH_PXA_GPIO_H
-
-#include <asm-generic/gpio.h>
-
-#include <mach/irqs.h>
-#include <mach/hardware.h>
-
-#endif
diff --git a/arch/arm/mach-realview/include/mach/gpio.h b/arch/arm/mach-realview/include/mach/gpio.h
deleted file mode 100644
index 40a8c17..0000000
--- a/arch/arm/mach-realview/include/mach/gpio.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/mach-spear13xx/include/mach/gpio.h b/arch/arm/mach-spear13xx/include/mach/gpio.h
deleted file mode 100644
index 85f1763..0000000
--- a/arch/arm/mach-spear13xx/include/mach/gpio.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * arch/arm/mach-spear13xx/include/mach/gpio.h
- *
- * GPIO macros for SPEAr13xx machine family
- *
- * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.linux@gmail.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#ifndef __MACH_GPIO_H
-#define __MACH_GPIO_H
-
-#include <plat/gpio.h>
-
-#endif /* __MACH_GPIO_H */
diff --git a/arch/arm/mach-spear3xx/include/mach/gpio.h b/arch/arm/mach-spear3xx/include/mach/gpio.h
deleted file mode 100644
index 2ac74c6..0000000
--- a/arch/arm/mach-spear3xx/include/mach/gpio.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * arch/arm/mach-spear3xx/include/mach/gpio.h
- *
- * GPIO macros for SPEAr3xx machine family
- *
- * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.linux@gmail.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#ifndef __MACH_GPIO_H
-#define __MACH_GPIO_H
-
-#include <plat/gpio.h>
-
-#endif /* __MACH_GPIO_H */
diff --git a/arch/arm/mach-spear6xx/include/mach/gpio.h b/arch/arm/mach-spear6xx/include/mach/gpio.h
deleted file mode 100644
index d42cefc..0000000
--- a/arch/arm/mach-spear6xx/include/mach/gpio.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * arch/arm/mach-spear6xx/include/mach/gpio.h
- *
- * GPIO macros for SPEAr6xx machine family
- *
- * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar <viresh.linux@gmail.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#ifndef __MACH_GPIO_H
-#define __MACH_GPIO_H
-
-#include <plat/gpio.h>
-
-#endif /* __MACH_GPIO_H */
diff --git a/arch/arm/mach-tegra/include/mach/gpio.h b/arch/arm/mach-tegra/include/mach/gpio.h
deleted file mode 100644
index 40a8c17..0000000
--- a/arch/arm/mach-tegra/include/mach/gpio.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/mach-u300/include/mach/gpio.h b/arch/arm/mach-u300/include/mach/gpio.h
deleted file mode 100644
index 40a8c17..0000000
--- a/arch/arm/mach-u300/include/mach/gpio.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/mach-ux500/include/mach/gpio.h b/arch/arm/mach-ux500/include/mach/gpio.h
deleted file mode 100644
index c01ef66..0000000
--- a/arch/arm/mach-ux500/include/mach/gpio.h
+++ /dev/null
@@ -1,5 +0,0 @@
-#ifndef __ASM_ARCH_GPIO_H
-#define __ASM_ARCH_GPIO_H
-
-
-#endif /* __ASM_ARCH_GPIO_H */
diff --git a/arch/arm/mach-versatile/include/mach/gpio.h b/arch/arm/mach-versatile/include/mach/gpio.h
deleted file mode 100644
index 40a8c17..0000000
--- a/arch/arm/mach-versatile/include/mach/gpio.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/mach-vexpress/include/mach/gpio.h b/arch/arm/mach-vexpress/include/mach/gpio.h
deleted file mode 100644
index 40a8c17..0000000
--- a/arch/arm/mach-vexpress/include/mach/gpio.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/mach-vt8500/include/mach/gpio.h b/arch/arm/mach-vt8500/include/mach/gpio.h
deleted file mode 100644
index 40a8c17..0000000
--- a/arch/arm/mach-vt8500/include/mach/gpio.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/plat-mxc/include/mach/gpio.h b/arch/arm/plat-mxc/include/mach/gpio.h
deleted file mode 100644
index 40a8c17..0000000
--- a/arch/arm/plat-mxc/include/mach/gpio.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/plat-spear/include/plat/gpio.h b/arch/arm/plat-spear/include/plat/gpio.h
deleted file mode 100644
index 40a8c17..0000000
--- a/arch/arm/plat-spear/include/plat/gpio.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
-- 
1.7.9.5
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