From 22fe67837614469f8e86c97e9e43d46270701b33 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 26 Jul 2011 11:04:51 +0100 Subject: ARM: gpio: consolidate trivial gpiolib implementations Consolidate 24 trivial gpiolib implementions out of mach/gpio.h into asm/gpio.h. This is basically the include of asm-generic/gpio.h and the definition of gpio_get_value, gpio_set_value, and gpio_cansleep as described in Documentation/gpio.txt Acked-by: H Hartley Sweeten Tested-by: David Brown Acked-by: David Brown Tested-by: Linus Walleij Acked-by: Kukjin Kim Tested-by: Shawn Guo Signed-off-by: Russell King --- arch/arm/include/asm/gpio.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/gpio.h b/arch/arm/include/asm/gpio.h index 166a7a3e2840..15e8970f20f4 100644 --- a/arch/arm/include/asm/gpio.h +++ b/arch/arm/include/asm/gpio.h @@ -4,4 +4,14 @@ /* not all ARM platforms necessarily support this API ... */ #include +#ifdef __ARM_GPIOLIB_TRIVIAL +/* Note: this may rely upon the value of ARCH_NR_GPIOS set in mach/gpio.h */ +#include + +/* The trivial gpiolib dispatchers */ +#define gpio_get_value __gpio_get_value +#define gpio_set_value __gpio_set_value +#define gpio_cansleep __gpio_cansleep +#endif + #endif /* _ARCH_ARM_GPIO_H */ -- cgit v1.2.1 From 01e7dc89d060413fd639635618de506093730964 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 26 Jul 2011 11:29:42 +0100 Subject: ARM: gpio: consolidate gpio_to_irq Many of the gpio_to_irq implementations use the gpiolib version of this function. Provide the standard gpiolib gpio_to_irq() for everyone, but allow platforms to override it if they wish. Add the neccessary overrides for those platforms which do not use the standard definition. Acked-by: Kukjin Kim Signed-off-by: Russell King --- arch/arm/include/asm/gpio.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/gpio.h b/arch/arm/include/asm/gpio.h index 15e8970f20f4..5032224eec3d 100644 --- a/arch/arm/include/asm/gpio.h +++ b/arch/arm/include/asm/gpio.h @@ -14,4 +14,13 @@ #define gpio_cansleep __gpio_cansleep #endif +/* + * Provide a default gpio_to_irq() which should satisfy every case. + * However, some platforms want to do this differently, so allow them + * to override it. + */ +#ifndef gpio_to_irq +#define gpio_to_irq __gpio_to_irq +#endif + #endif /* _ARCH_ARM_GPIO_H */ -- cgit v1.2.1 From 8f3c4537bb08001c4772d66ad3fcfcf24d8d180d Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 8 Aug 2011 13:58:28 +0100 Subject: ARM: gpio: make trivial GPIOLIB implementation the default Rather than marking the mach/gpio.h header files which want to use the trivial GPIOLIB implementation, mark those which do not want to use it instead. This means that by default, you get the trivial implementation and only have to do something extra if you need to. This should encourage the use of the trivial default implementation. As an additional bonus, several gpio.h header files become empty. Acked-by: H Hartley Sweeten Tested-by: Jamie Iles Acked-by: Kukjin Kim Signed-off-by: Russell King --- arch/arm/include/asm/gpio.h | 2 +- arch/arm/include/asm/hardware/iop3xx-gpio.h | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/gpio.h b/arch/arm/include/asm/gpio.h index 5032224eec3d..11ad0bfbb0ad 100644 --- a/arch/arm/include/asm/gpio.h +++ b/arch/arm/include/asm/gpio.h @@ -4,7 +4,7 @@ /* not all ARM platforms necessarily support this API ... */ #include -#ifdef __ARM_GPIOLIB_TRIVIAL +#ifndef __ARM_GPIOLIB_COMPLEX /* Note: this may rely upon the value of ARCH_NR_GPIOS set in mach/gpio.h */ #include diff --git a/arch/arm/include/asm/hardware/iop3xx-gpio.h b/arch/arm/include/asm/hardware/iop3xx-gpio.h index b69d972b1f7d..9eda7dc92ad8 100644 --- a/arch/arm/include/asm/hardware/iop3xx-gpio.h +++ b/arch/arm/include/asm/hardware/iop3xx-gpio.h @@ -28,6 +28,8 @@ #include #include +#define __ARM_GPIOLIB_COMPLEX + #define IOP3XX_N_GPIOS 8 static inline int gpio_get_value(unsigned gpio) -- cgit v1.2.1 From daece59689e76ed55d8863cae04993679a8e844e Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Fri, 12 Aug 2011 00:14:29 +0100 Subject: ARM: 7013/1: P2V: Remove ARM_PATCH_PHYS_VIRT_16BIT This code can be removed now that MSM targets no longer need the 16-bit offsets for P2V. Signed-off-by: Nicolas Pitre Signed-off-by: Stephen Boyd Signed-off-by: Russell King --- arch/arm/include/asm/memory.h | 7 ------- arch/arm/include/asm/module.h | 4 ---- 2 files changed, 11 deletions(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index b8de516e600e..441fc4fe8263 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -160,7 +160,6 @@ * so that all we need to do is modify the 8-bit constant field. */ #define __PV_BITS_31_24 0x81000000 -#define __PV_BITS_23_16 0x00810000 extern unsigned long __pv_phys_offset; #define PHYS_OFFSET __pv_phys_offset @@ -178,9 +177,6 @@ static inline unsigned long __virt_to_phys(unsigned long x) { unsigned long t; __pv_stub(x, t, "add", __PV_BITS_31_24); -#ifdef CONFIG_ARM_PATCH_PHYS_VIRT_16BIT - __pv_stub(t, t, "add", __PV_BITS_23_16); -#endif return t; } @@ -188,9 +184,6 @@ static inline unsigned long __phys_to_virt(unsigned long x) { unsigned long t; __pv_stub(x, t, "sub", __PV_BITS_31_24); -#ifdef CONFIG_ARM_PATCH_PHYS_VIRT_16BIT - __pv_stub(t, t, "sub", __PV_BITS_23_16); -#endif return t; } #else diff --git a/arch/arm/include/asm/module.h b/arch/arm/include/asm/module.h index 543b44916d2c..6c6809f982f1 100644 --- a/arch/arm/include/asm/module.h +++ b/arch/arm/include/asm/module.h @@ -31,11 +31,7 @@ struct mod_arch_specific { /* Add __virt_to_phys patching state as well */ #ifdef CONFIG_ARM_PATCH_PHYS_VIRT -#ifdef CONFIG_ARM_PATCH_PHYS_VIRT_16BIT -#define MODULE_ARCH_VERMAGIC_P2V "p2v16 " -#else #define MODULE_ARCH_VERMAGIC_P2V "p2v8 " -#endif #else #define MODULE_ARCH_VERMAGIC_P2V "" #endif -- cgit v1.2.1 From 1b9f95f8ade9efc2bd49f0e7b9dc61a038ac3eef Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Tue, 5 Jul 2011 22:52:51 -0400 Subject: ARM: prepare for removal of a bunch of files When the CONFIG_NO_MACH_MEMORY_H symbol is selected by a particular machine class, the machine specific memory.h include file is no longer used and can be removed. In that case the equivalent information can be obtained dynamically at runtime by enabling CONFIG_ARM_PATCH_PHYS_VIRT or by specifying the physical memory address at kernel configuration time. If/when all instances of mach/memory.h are removed then this symbol could be removed. Signed-off-by: Nicolas Pitre --- arch/arm/include/asm/memory.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 90bca427e367..046c915694cd 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -16,9 +16,12 @@ #include #include #include -#include #include +#ifndef CONFIG_NO_MACH_MEMORY_H +#include +#endif + /* * Allow for constants defined here to be used from assembly code * by prepending the UL suffix only with actual C code compilation. @@ -184,7 +187,11 @@ static inline unsigned long __phys_to_virt(unsigned long x) #endif #ifndef PHYS_OFFSET +#ifdef PLAT_PHYS_OFFSET #define PHYS_OFFSET PLAT_PHYS_OFFSET +#else +#define PHYS_OFFSET UL(CONFIG_PHYS_OFFSET) +#endif #endif /* -- cgit v1.2.1 From 97b09da4ee36ec4bd0f6e16b84b4bb6fa05db110 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sat, 1 Oct 2011 22:03:45 +0200 Subject: ARM: pxa: use correct __iomem annotations This tries to clear up the confusion between integers and iomem pointers in the marvell pxa platform. MMIO addresses are supposed to be __iomem* values, in order to let the Linux type checking work correctly. This patch moves the cast to __iomem as far back as possible, to the place where the MMIO virtual address windows are defined. Signed-off-by: Arnd Bergmann Signed-off-by: Eric Miao --- arch/arm/include/asm/hardware/it8152.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/hardware/it8152.h b/arch/arm/include/asm/hardware/it8152.h index b3fea38d55c6..43cab498bc27 100644 --- a/arch/arm/include/asm/hardware/it8152.h +++ b/arch/arm/include/asm/hardware/it8152.h @@ -9,7 +9,7 @@ #ifndef __ASM_HARDWARE_IT8152_H #define __ASM_HARDWARE_IT8152_H -extern unsigned long it8152_base_address; +extern void __iomem *it8152_base_address; #define IT8152_IO_BASE (it8152_base_address + 0x03e00000) #define IT8152_CFGREG_BASE (it8152_base_address + 0x03f00000) -- cgit v1.2.1 From 0cdc8b921d68817b687755b4f6ae20cd8ff1d026 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Fri, 2 Sep 2011 22:26:55 -0400 Subject: ARM: switch from NO_MACH_MEMORY_H to NEED_MACH_MEMORY_H Given that we want the default to not have any and given that there are now fewer cases where it is still provided than the cases where it is not at this point, this makes sense to invert the logic and just identify the exception cases. The word "need" instead of "have" was chosen to construct the config symbol so not to suggest that having a mach/memory.h file is actually a feature that one should aim for. Signed-off-by: Nicolas Pitre --- arch/arm/include/asm/memory.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 046c915694cd..a8997d71084e 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -18,7 +18,7 @@ #include #include -#ifndef CONFIG_NO_MACH_MEMORY_H +#ifdef CONFIG_NEED_MACH_MEMORY_H #include #endif -- cgit v1.2.1