From 6d803ba736abb5e122dede70a4720e4843dd6df4 Mon Sep 17 00:00:00 2001 From: Jean-Christop PLAGNIOL-VILLARD Date: Wed, 17 Nov 2010 10:04:33 +0100 Subject: ARM: 6483/1: arm & sh: factorised duplicated clkdev.c factorise some generic infrastructure to assist looking up struct clks for the ARM & SH architecture. as the code is identical at 99% put the arch specific code for allocation as example in asm/clkdev.h Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Paul Mundt Signed-off-by: Russell King --- arch/arm/Kconfig | 42 +++--- arch/arm/common/Kconfig | 4 - arch/arm/common/Makefile | 1 - arch/arm/common/clkdev.c | 179 -------------------------- arch/arm/include/asm/clkdev.h | 22 +--- arch/arm/mach-bcmring/clock.c | 3 +- arch/arm/mach-bcmring/core.c | 2 +- arch/arm/mach-davinci/clock.h | 2 +- arch/arm/mach-ep93xx/clock.c | 2 +- arch/arm/mach-imx/clock-imx1.c | 3 +- arch/arm/mach-imx/clock-imx21.c | 2 +- arch/arm/mach-imx/clock-imx27.c | 2 +- arch/arm/mach-integrator/core.c | 3 +- arch/arm/mach-integrator/impd1.c | 3 +- arch/arm/mach-integrator/integrator_cp.c | 3 +- arch/arm/mach-lpc32xx/clock.c | 3 +- arch/arm/mach-mmp/clock.h | 2 +- arch/arm/mach-mx25/clock.c | 3 +- arch/arm/mach-mx3/clock-imx31.c | 2 +- arch/arm/mach-mx3/clock-imx35.c | 3 +- arch/arm/mach-mx5/clock-mx51.c | 2 +- arch/arm/mach-mxc91231/clock.c | 2 +- arch/arm/mach-nomadik/clock.c | 2 +- arch/arm/mach-nuc93x/clock.h | 2 +- arch/arm/mach-omap1/clock.c | 2 +- arch/arm/mach-omap2/dpll3xxx.c | 2 +- arch/arm/mach-pnx4008/clock.c | 3 +- arch/arm/mach-pxa/clock.c | 2 +- arch/arm/mach-pxa/clock.h | 2 +- arch/arm/mach-realview/core.c | 3 +- arch/arm/mach-shmobile/Kconfig | 6 +- arch/arm/mach-shmobile/clock-sh7367.c | 2 +- arch/arm/mach-shmobile/clock-sh7372.c | 2 +- arch/arm/mach-shmobile/clock-sh7377.c | 2 +- arch/arm/mach-tcc8k/clock.c | 3 +- arch/arm/mach-tegra/clock.c | 2 +- arch/arm/mach-tegra/clock.h | 2 +- arch/arm/mach-tegra/tegra2_clocks.c | 3 +- arch/arm/mach-u300/clock.c | 2 +- arch/arm/mach-ux500/clock.c | 3 +- arch/arm/mach-versatile/core.c | 3 +- arch/arm/mach-vexpress/ct-ca9x4.c | 3 +- arch/arm/mach-vexpress/v2m.c | 3 +- arch/arm/mach-w90x900/clock.h | 2 +- arch/arm/plat-omap/Kconfig | 4 +- arch/arm/plat-omap/include/plat/clkdev_omap.h | 2 +- arch/arm/plat-spear/include/plat/clock.h | 2 +- arch/arm/plat-stmp3xxx/clock.c | 2 +- arch/sh/Kconfig | 2 +- arch/sh/boards/mach-highlander/setup.c | 2 +- arch/sh/include/asm/clkdev.h | 38 +++--- arch/sh/kernel/Makefile | 2 +- arch/sh/kernel/clkdev.c | 171 ------------------------ arch/sh/kernel/cpu/clock-cpg.c | 2 +- arch/sh/kernel/cpu/clock.c | 16 --- arch/sh/kernel/cpu/sh4/clock-sh4-202.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7343.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7366.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7722.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7723.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7724.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7757.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7763.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7780.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7785.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7786.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-shx3.c | 2 +- drivers/Kconfig | 2 + drivers/Makefile | 2 + drivers/clk/Kconfig | 4 + drivers/clk/Makefile | 2 + drivers/clk/clkdev.c | 176 +++++++++++++++++++++++++ include/linux/clkdev.h | 36 ++++++ 73 files changed, 328 insertions(+), 507 deletions(-) delete mode 100644 arch/arm/common/clkdev.c delete mode 100644 arch/sh/kernel/clkdev.c create mode 100644 drivers/clk/Kconfig create mode 100644 drivers/clk/Makefile create mode 100644 drivers/clk/clkdev.c create mode 100644 include/linux/clkdev.h diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index a19a5266d5fc..0e51342b3c02 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -221,7 +221,7 @@ config ARCH_INTEGRATOR bool "ARM Ltd. Integrator family" select ARM_AMBA select ARCH_HAS_CPUFREQ - select COMMON_CLKDEV + select CLKDEV_LOOKUP select ICST select GENERIC_CLOCKEVENTS select PLAT_VERSATILE @@ -231,7 +231,7 @@ config ARCH_INTEGRATOR config ARCH_REALVIEW bool "ARM Ltd. RealView family" select ARM_AMBA - select COMMON_CLKDEV + select CLKDEV_LOOKUP select ICST select GENERIC_CLOCKEVENTS select ARCH_WANT_OPTIONAL_GPIOLIB @@ -245,7 +245,7 @@ config ARCH_VERSATILE bool "ARM Ltd. Versatile family" select ARM_AMBA select ARM_VIC - select COMMON_CLKDEV + select CLKDEV_LOOKUP select ICST select GENERIC_CLOCKEVENTS select ARCH_WANT_OPTIONAL_GPIOLIB @@ -259,7 +259,7 @@ config ARCH_VEXPRESS select ARCH_WANT_OPTIONAL_GPIOLIB select ARM_AMBA select ARM_TIMER_SP804 - select COMMON_CLKDEV + select CLKDEV_LOOKUP select GENERIC_CLOCKEVENTS select HAVE_CLK select ICST @@ -280,7 +280,7 @@ config ARCH_BCMRING depends on MMU select CPU_V6 select ARM_AMBA - select COMMON_CLKDEV + select CLKDEV_LOOKUP select GENERIC_CLOCKEVENTS select ARCH_WANT_OPTIONAL_GPIOLIB help @@ -327,7 +327,7 @@ config ARCH_EP93XX select CPU_ARM920T select ARM_AMBA select ARM_VIC - select COMMON_CLKDEV + select CLKDEV_LOOKUP select ARCH_REQUIRE_GPIOLIB select ARCH_HAS_HOLES_MEMORYMODEL select ARCH_USES_GETTIMEOFFSET @@ -347,14 +347,14 @@ config ARCH_MXC bool "Freescale MXC/iMX-based" select GENERIC_CLOCKEVENTS select ARCH_REQUIRE_GPIOLIB - select COMMON_CLKDEV + select CLKDEV_LOOKUP help Support for Freescale MXC/iMX-based family of processors config ARCH_STMP3XXX bool "Freescale STMP3xxx" select CPU_ARM926T - select COMMON_CLKDEV + select CLKDEV_LOOKUP select ARCH_REQUIRE_GPIOLIB select GENERIC_CLOCKEVENTS select USB_ARCH_HAS_EHCI @@ -472,7 +472,7 @@ config ARCH_LPC32XX select HAVE_IDE select ARM_AMBA select USB_ARCH_HAS_OHCI - select COMMON_CLKDEV + select CLKDEV_LOOKUP select GENERIC_TIME select GENERIC_CLOCKEVENTS help @@ -506,7 +506,7 @@ config ARCH_MMP bool "Marvell PXA168/910/MMP2" depends on MMU select ARCH_REQUIRE_GPIOLIB - select COMMON_CLKDEV + select CLKDEV_LOOKUP select GENERIC_CLOCKEVENTS select TICK_ONESHOT select PLAT_PXA @@ -539,7 +539,7 @@ config ARCH_W90X900 bool "Nuvoton W90X900 CPU" select CPU_ARM926T select ARCH_REQUIRE_GPIOLIB - select COMMON_CLKDEV + select CLKDEV_LOOKUP select GENERIC_CLOCKEVENTS help Support for Nuvoton (Winbond logic dept.) ARM9 processor, @@ -553,7 +553,7 @@ config ARCH_W90X900 config ARCH_NUC93X bool "Nuvoton NUC93X CPU" select CPU_ARM926T - select COMMON_CLKDEV + select CLKDEV_LOOKUP help Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a low-power and high performance MPEG-4/JPEG multimedia controller chip. @@ -564,7 +564,7 @@ config ARCH_TEGRA select GENERIC_CLOCKEVENTS select GENERIC_GPIO select HAVE_CLK - select COMMON_CLKDEV + select CLKDEV_LOOKUP select ARCH_HAS_BARRIERS if CACHE_L2X0 select ARCH_HAS_CPUFREQ help @@ -574,7 +574,7 @@ config ARCH_TEGRA config ARCH_PNX4008 bool "Philips Nexperia PNX4008 Mobile" select CPU_ARM926T - select COMMON_CLKDEV + select CLKDEV_LOOKUP select ARCH_USES_GETTIMEOFFSET help This enables support for Philips PNX4008 mobile platform. @@ -584,7 +584,7 @@ config ARCH_PXA depends on MMU select ARCH_MTD_XIP select ARCH_HAS_CPUFREQ - select COMMON_CLKDEV + select CLKDEV_LOOKUP select ARCH_REQUIRE_GPIOLIB select GENERIC_CLOCKEVENTS select TICK_ONESHOT @@ -761,7 +761,7 @@ config ARCH_TCC_926 bool "Telechips TCC ARM926-based systems" select CPU_ARM926T select HAVE_CLK - select COMMON_CLKDEV + select CLKDEV_LOOKUP select GENERIC_CLOCKEVENTS help Support for Telechips TCC ARM926-based systems. @@ -785,7 +785,7 @@ config ARCH_U300 select ARM_AMBA select ARM_VIC select GENERIC_CLOCKEVENTS - select COMMON_CLKDEV + select CLKDEV_LOOKUP select GENERIC_GPIO help Support for ST-Ericsson U300 series mobile platforms. @@ -795,7 +795,7 @@ config ARCH_U8500 select CPU_V7 select ARM_AMBA select GENERIC_CLOCKEVENTS - select COMMON_CLKDEV + select CLKDEV_LOOKUP select ARCH_REQUIRE_GPIOLIB help Support for ST-Ericsson's Ux500 architecture @@ -805,7 +805,7 @@ config ARCH_NOMADIK select ARM_AMBA select ARM_VIC select CPU_ARM926T - select COMMON_CLKDEV + select CLKDEV_LOOKUP select GENERIC_CLOCKEVENTS select ARCH_REQUIRE_GPIOLIB help @@ -817,7 +817,7 @@ config ARCH_DAVINCI select ARCH_REQUIRE_GPIOLIB select ZONE_DMA select HAVE_IDE - select COMMON_CLKDEV + select CLKDEV_LOOKUP select GENERIC_ALLOCATOR select ARCH_HAS_HOLES_MEMORYMODEL help @@ -837,7 +837,7 @@ config PLAT_SPEAR bool "ST SPEAr" select ARM_AMBA select ARCH_REQUIRE_GPIOLIB - select COMMON_CLKDEV + select CLKDEV_LOOKUP select GENERIC_CLOCKEVENTS select HAVE_CLK help diff --git a/arch/arm/common/Kconfig b/arch/arm/common/Kconfig index 0a34c8186924..778655f0257a 100644 --- a/arch/arm/common/Kconfig +++ b/arch/arm/common/Kconfig @@ -37,7 +37,3 @@ config SHARP_PARAM config SHARP_SCOOP bool - -config COMMON_CLKDEV - bool - select HAVE_CLK diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile index e6e8664a9413..799e140274f1 100644 --- a/arch/arm/common/Makefile +++ b/arch/arm/common/Makefile @@ -16,4 +16,3 @@ obj-$(CONFIG_SHARP_SCOOP) += scoop.o obj-$(CONFIG_ARCH_IXP2000) += uengine.o obj-$(CONFIG_ARCH_IXP23XX) += uengine.o obj-$(CONFIG_PCI_HOST_ITE8152) += it8152.o -obj-$(CONFIG_COMMON_CLKDEV) += clkdev.o diff --git a/arch/arm/common/clkdev.c b/arch/arm/common/clkdev.c deleted file mode 100644 index e2b2bb66e094..000000000000 --- a/arch/arm/common/clkdev.c +++ /dev/null @@ -1,179 +0,0 @@ -/* - * arch/arm/common/clkdev.c - * - * Copyright (C) 2008 Russell King. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Helper for the clk API to assist looking up a struct clk. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -static LIST_HEAD(clocks); -static DEFINE_MUTEX(clocks_mutex); - -/* - * Find the correct struct clk for the device and connection ID. - * We do slightly fuzzy matching here: - * An entry with a NULL ID is assumed to be a wildcard. - * If an entry has a device ID, it must match - * If an entry has a connection ID, it must match - * Then we take the most specific entry - with the following - * order of precedence: dev+con > dev only > con only. - */ -static struct clk *clk_find(const char *dev_id, const char *con_id) -{ - struct clk_lookup *p; - struct clk *clk = NULL; - int match, best = 0; - - list_for_each_entry(p, &clocks, node) { - match = 0; - if (p->dev_id) { - if (!dev_id || strcmp(p->dev_id, dev_id)) - continue; - match += 2; - } - if (p->con_id) { - if (!con_id || strcmp(p->con_id, con_id)) - continue; - match += 1; - } - - if (match > best) { - clk = p->clk; - if (match != 3) - best = match; - else - break; - } - } - return clk; -} - -struct clk *clk_get_sys(const char *dev_id, const char *con_id) -{ - struct clk *clk; - - mutex_lock(&clocks_mutex); - clk = clk_find(dev_id, con_id); - if (clk && !__clk_get(clk)) - clk = NULL; - mutex_unlock(&clocks_mutex); - - return clk ? clk : ERR_PTR(-ENOENT); -} -EXPORT_SYMBOL(clk_get_sys); - -struct clk *clk_get(struct device *dev, const char *con_id) -{ - const char *dev_id = dev ? dev_name(dev) : NULL; - - return clk_get_sys(dev_id, con_id); -} -EXPORT_SYMBOL(clk_get); - -void clk_put(struct clk *clk) -{ - __clk_put(clk); -} -EXPORT_SYMBOL(clk_put); - -void clkdev_add(struct clk_lookup *cl) -{ - mutex_lock(&clocks_mutex); - list_add_tail(&cl->node, &clocks); - mutex_unlock(&clocks_mutex); -} -EXPORT_SYMBOL(clkdev_add); - -void __init clkdev_add_table(struct clk_lookup *cl, size_t num) -{ - mutex_lock(&clocks_mutex); - while (num--) { - list_add_tail(&cl->node, &clocks); - cl++; - } - mutex_unlock(&clocks_mutex); -} - -#define MAX_DEV_ID 20 -#define MAX_CON_ID 16 - -struct clk_lookup_alloc { - struct clk_lookup cl; - char dev_id[MAX_DEV_ID]; - char con_id[MAX_CON_ID]; -}; - -struct clk_lookup *clkdev_alloc(struct clk *clk, const char *con_id, - const char *dev_fmt, ...) -{ - struct clk_lookup_alloc *cla; - - cla = kzalloc(sizeof(*cla), GFP_KERNEL); - if (!cla) - return NULL; - - cla->cl.clk = clk; - if (con_id) { - strlcpy(cla->con_id, con_id, sizeof(cla->con_id)); - cla->cl.con_id = cla->con_id; - } - - if (dev_fmt) { - va_list ap; - - va_start(ap, dev_fmt); - vscnprintf(cla->dev_id, sizeof(cla->dev_id), dev_fmt, ap); - cla->cl.dev_id = cla->dev_id; - va_end(ap); - } - - return &cla->cl; -} -EXPORT_SYMBOL(clkdev_alloc); - -int clk_add_alias(const char *alias, const char *alias_dev_name, char *id, - struct device *dev) -{ - struct clk *r = clk_get(dev, id); - struct clk_lookup *l; - - if (IS_ERR(r)) - return PTR_ERR(r); - - l = clkdev_alloc(r, alias, alias_dev_name); - clk_put(r); - if (!l) - return -ENODEV; - clkdev_add(l); - return 0; -} -EXPORT_SYMBOL(clk_add_alias); - -/* - * clkdev_drop - remove a clock dynamically allocated - */ -void clkdev_drop(struct clk_lookup *cl) -{ - mutex_lock(&clocks_mutex); - list_del(&cl->node); - mutex_unlock(&clocks_mutex); - kfree(cl); -} -EXPORT_SYMBOL(clkdev_drop); diff --git a/arch/arm/include/asm/clkdev.h b/arch/arm/include/asm/clkdev.h index b56c1389b6fa..765d33222369 100644 --- a/arch/arm/include/asm/clkdev.h +++ b/arch/arm/include/asm/clkdev.h @@ -12,23 +12,13 @@ #ifndef __ASM_CLKDEV_H #define __ASM_CLKDEV_H -struct clk; -struct device; +#include -struct clk_lookup { - struct list_head node; - const char *dev_id; - const char *con_id; - struct clk *clk; -}; +#include -struct clk_lookup *clkdev_alloc(struct clk *clk, const char *con_id, - const char *dev_fmt, ...); - -void clkdev_add(struct clk_lookup *cl); -void clkdev_drop(struct clk_lookup *cl); - -void clkdev_add_table(struct clk_lookup *, size_t); -int clk_add_alias(const char *, const char *, char *, struct device *); +static inline struct clk_lookup_alloc *__clkdev_alloc(size_t size) +{ + return kzalloc(size, GFP_KERNEL); +} #endif diff --git a/arch/arm/mach-bcmring/clock.c b/arch/arm/mach-bcmring/clock.c index 14bafc38f2dc..ad237a42d265 100644 --- a/arch/arm/mach-bcmring/clock.c +++ b/arch/arm/mach-bcmring/clock.c @@ -21,13 +21,12 @@ #include #include #include +#include #include #include #include #include -#include - #include "clock.h" #define clk_is_primary(x) ((x)->type & CLK_TYPE_PRIMARY) diff --git a/arch/arm/mach-bcmring/core.c b/arch/arm/mach-bcmring/core.c index d3f959e92b2d..ed96ef400474 100644 --- a/arch/arm/mach-bcmring/core.c +++ b/arch/arm/mach-bcmring/core.c @@ -30,10 +30,10 @@ #include #include #include +#include #include #include -#include #include #include #include diff --git a/arch/arm/mach-davinci/clock.h b/arch/arm/mach-davinci/clock.h index 11099980b58b..0dd22031ec62 100644 --- a/arch/arm/mach-davinci/clock.h +++ b/arch/arm/mach-davinci/clock.h @@ -68,7 +68,7 @@ #ifndef __ASSEMBLER__ #include -#include +#include #define PLLSTAT_GOSTAT BIT(0) #define PLLCMD_GOSET BIT(0) diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c index ef06c66a6f16..ca4de7105097 100644 --- a/arch/arm/mach-ep93xx/clock.c +++ b/arch/arm/mach-ep93xx/clock.c @@ -19,10 +19,10 @@ #include #include #include +#include #include -#include #include diff --git a/arch/arm/mach-imx/clock-imx1.c b/arch/arm/mach-imx/clock-imx1.c index daca30b2d5b1..3938a563b280 100644 --- a/arch/arm/mach-imx/clock-imx1.c +++ b/arch/arm/mach-imx/clock-imx1.c @@ -22,8 +22,7 @@ #include #include #include - -#include +#include #include #include diff --git a/arch/arm/mach-imx/clock-imx21.c b/arch/arm/mach-imx/clock-imx21.c index cf15ea516a72..d7056559715a 100644 --- a/arch/arm/mach-imx/clock-imx21.c +++ b/arch/arm/mach-imx/clock-imx21.c @@ -21,11 +21,11 @@ #include #include #include +#include #include #include #include -#include #include #define IO_ADDR_CCM(off) (MX21_IO_ADDRESS(MX21_CCM_BASE_ADDR + (off))) diff --git a/arch/arm/mach-imx/clock-imx27.c b/arch/arm/mach-imx/clock-imx27.c index 98a25bada783..ca1017b9028d 100644 --- a/arch/arm/mach-imx/clock-imx27.c +++ b/arch/arm/mach-imx/clock-imx27.c @@ -21,8 +21,8 @@ #include #include #include +#include -#include #include #include diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c index 8f4fb6d638f7..b8e884b450da 100644 --- a/arch/arm/mach-integrator/core.c +++ b/arch/arm/mach-integrator/core.c @@ -21,9 +21,8 @@ #include #include #include +#include -#include -#include #include #include #include diff --git a/arch/arm/mach-integrator/impd1.c b/arch/arm/mach-integrator/impd1.c index fd684bf205e5..5db574f8ae3f 100644 --- a/arch/arm/mach-integrator/impd1.c +++ b/arch/arm/mach-integrator/impd1.c @@ -22,9 +22,8 @@ #include #include #include +#include -#include -#include #include #include #include diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c index 6258c90d020c..9403d2fa13a3 100644 --- a/arch/arm/mach-integrator/integrator_cp.c +++ b/arch/arm/mach-integrator/integrator_cp.c @@ -21,9 +21,8 @@ #include #include #include +#include -#include -#include #include #include #include diff --git a/arch/arm/mach-lpc32xx/clock.c b/arch/arm/mach-lpc32xx/clock.c index 32d63796430a..da0e6498110a 100644 --- a/arch/arm/mach-lpc32xx/clock.c +++ b/arch/arm/mach-lpc32xx/clock.c @@ -90,10 +90,9 @@ #include #include #include +#include #include -#include -#include #include #include "clock.h" #include "common.h" diff --git a/arch/arm/mach-mmp/clock.h b/arch/arm/mach-mmp/clock.h index 016ae94691c0..9b027d7491f5 100644 --- a/arch/arm/mach-mmp/clock.h +++ b/arch/arm/mach-mmp/clock.h @@ -6,7 +6,7 @@ * published by the Free Software Foundation. */ -#include +#include struct clkops { void (*enable)(struct clk *); diff --git a/arch/arm/mach-mx25/clock.c b/arch/arm/mach-mx25/clock.c index 9e4a5578c2fb..00dcb08019e9 100644 --- a/arch/arm/mach-mx25/clock.c +++ b/arch/arm/mach-mx25/clock.c @@ -21,8 +21,7 @@ #include #include #include - -#include +#include #include #include diff --git a/arch/arm/mach-mx3/clock-imx31.c b/arch/arm/mach-mx3/clock-imx31.c index 109e98f323e0..1cd8b40b7676 100644 --- a/arch/arm/mach-mx3/clock-imx31.c +++ b/arch/arm/mach-mx3/clock-imx31.c @@ -23,8 +23,8 @@ #include #include #include +#include -#include #include #include diff --git a/arch/arm/mach-mx3/clock-imx35.c b/arch/arm/mach-mx3/clock-imx35.c index 61e4a318980a..819dd809615a 100644 --- a/arch/arm/mach-mx3/clock-imx35.c +++ b/arch/arm/mach-mx3/clock-imx35.c @@ -21,8 +21,7 @@ #include #include #include - -#include +#include #include #include diff --git a/arch/arm/mach-mx5/clock-mx51.c b/arch/arm/mach-mx5/clock-mx51.c index 8ac36d882927..5975edb47de8 100644 --- a/arch/arm/mach-mx5/clock-mx51.c +++ b/arch/arm/mach-mx5/clock-mx51.c @@ -14,8 +14,8 @@ #include #include #include +#include -#include #include #include diff --git a/arch/arm/mach-mxc91231/clock.c b/arch/arm/mach-mxc91231/clock.c index 5c85075d8a56..9fab505f1eb1 100644 --- a/arch/arm/mach-mxc91231/clock.c +++ b/arch/arm/mach-mxc91231/clock.c @@ -2,12 +2,12 @@ #include #include #include +#include #include #include #include -#include #include #include diff --git a/arch/arm/mach-nomadik/clock.c b/arch/arm/mach-nomadik/clock.c index 89f793adf776..48a59f24e10c 100644 --- a/arch/arm/mach-nomadik/clock.c +++ b/arch/arm/mach-nomadik/clock.c @@ -7,7 +7,7 @@ #include #include #include -#include +#include #include "clock.h" /* diff --git a/arch/arm/mach-nuc93x/clock.h b/arch/arm/mach-nuc93x/clock.h index 18e51be4816f..4de1f1da9dc5 100644 --- a/arch/arm/mach-nuc93x/clock.h +++ b/arch/arm/mach-nuc93x/clock.h @@ -10,7 +10,7 @@ * the Free Software Foundation; either version 2 of the License. */ -#include +#include void nuc93x_clk_enable(struct clk *clk, int enable); void clks_register(struct clk_lookup *clks, size_t num); diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c index b8c7fb9d7921..84ef70476b51 100644 --- a/arch/arm/mach-omap1/clock.c +++ b/arch/arm/mach-omap1/clock.c @@ -17,9 +17,9 @@ #include #include #include +#include #include -#include #include #include diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c index ed8d330522f1..ebb888f59365 100644 --- a/arch/arm/mach-omap2/dpll3xxx.c +++ b/arch/arm/mach-omap2/dpll3xxx.c @@ -26,10 +26,10 @@ #include #include #include +#include #include #include -#include #include "clock.h" #include "prm.h" diff --git a/arch/arm/mach-pnx4008/clock.c b/arch/arm/mach-pnx4008/clock.c index 9d1975fa4d9f..a4a3819c96cb 100644 --- a/arch/arm/mach-pnx4008/clock.c +++ b/arch/arm/mach-pnx4008/clock.c @@ -21,8 +21,7 @@ #include #include #include - -#include +#include #include #include diff --git a/arch/arm/mach-pxa/clock.c b/arch/arm/mach-pxa/clock.c index abba0089a2ae..4e4a84be96ba 100644 --- a/arch/arm/mach-pxa/clock.c +++ b/arch/arm/mach-pxa/clock.c @@ -11,8 +11,8 @@ #include #include #include +#include -#include #include #include diff --git a/arch/arm/mach-pxa/clock.h b/arch/arm/mach-pxa/clock.h index d8488742b807..12cc0e87e6c4 100644 --- a/arch/arm/mach-pxa/clock.h +++ b/arch/arm/mach-pxa/clock.h @@ -1,4 +1,4 @@ -#include +#include struct clkops { void (*enable)(struct clk *); diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c index 07c08151dfe6..3d915b1ccdb5 100644 --- a/arch/arm/mach-realview/core.c +++ b/arch/arm/mach-realview/core.c @@ -30,8 +30,8 @@ #include #include #include +#include -#include #include #include #include @@ -47,7 +47,6 @@ #include -#include #include #include #include diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index 54b479c35ee0..f8f06e9fec35 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -6,7 +6,7 @@ config ARCH_SH7367 bool "SH-Mobile G3 (SH7367)" select CPU_V6 select HAVE_CLK - select COMMON_CLKDEV + select CLKDEV_LOOKUP select SH_CLK_CPG select GENERIC_CLOCKEVENTS @@ -14,7 +14,7 @@ config ARCH_SH7377 bool "SH-Mobile G4 (SH7377)" select CPU_V7 select HAVE_CLK - select COMMON_CLKDEV + select CLKDEV_LOOKUP select SH_CLK_CPG select GENERIC_CLOCKEVENTS @@ -22,7 +22,7 @@ config ARCH_SH7372 bool "SH-Mobile AP4 (SH7372)" select CPU_V7 select HAVE_CLK - select COMMON_CLKDEV + select CLKDEV_LOOKUP select SH_CLK_CPG select GENERIC_CLOCKEVENTS diff --git a/arch/arm/mach-shmobile/clock-sh7367.c b/arch/arm/mach-shmobile/clock-sh7367.c index 9f78729098f2..6b186aefcbd6 100644 --- a/arch/arm/mach-shmobile/clock-sh7367.c +++ b/arch/arm/mach-shmobile/clock-sh7367.c @@ -20,8 +20,8 @@ #include #include #include +#include #include -#include /* SH7367 registers */ #define RTFRQCR 0xe6150000 diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c index 8565aefa21fd..445112adba46 100644 --- a/arch/arm/mach-shmobile/clock-sh7372.c +++ b/arch/arm/mach-shmobile/clock-sh7372.c @@ -20,8 +20,8 @@ #include #include #include +#include #include -#include /* SH7372 registers */ #define FRQCRA 0xe6150000 diff --git a/arch/arm/mach-shmobile/clock-sh7377.c b/arch/arm/mach-shmobile/clock-sh7377.c index f91395aeb9ab..95942466e63f 100644 --- a/arch/arm/mach-shmobile/clock-sh7377.c +++ b/arch/arm/mach-shmobile/clock-sh7377.c @@ -20,8 +20,8 @@ #include #include #include +#include #include -#include /* SH7377 registers */ #define RTFRQCR 0xe6150000 diff --git a/arch/arm/mach-tcc8k/clock.c b/arch/arm/mach-tcc8k/clock.c index ba32a15127ab..3970a9cdce26 100644 --- a/arch/arm/mach-tcc8k/clock.c +++ b/arch/arm/mach-tcc8k/clock.c @@ -12,8 +12,7 @@ #include #include #include - -#include +#include #include #include diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c index ae19f95585be..77948e0f4909 100644 --- a/arch/arm/mach-tegra/clock.c +++ b/arch/arm/mach-tegra/clock.c @@ -25,7 +25,7 @@ #include #include #include -#include +#include #include "clock.h" #include "board.h" diff --git a/arch/arm/mach-tegra/clock.h b/arch/arm/mach-tegra/clock.h index 94fd859770f1..083a4cfc6cf0 100644 --- a/arch/arm/mach-tegra/clock.h +++ b/arch/arm/mach-tegra/clock.h @@ -21,7 +21,7 @@ #define __MACH_TEGRA_CLOCK_H #include -#include +#include #define DIV_BUS (1 << 0) #define DIV_U71 (1 << 1) diff --git a/arch/arm/mach-tegra/tegra2_clocks.c b/arch/arm/mach-tegra/tegra2_clocks.c index ae3b308e22a4..f0dae6d8ba52 100644 --- a/arch/arm/mach-tegra/tegra2_clocks.c +++ b/arch/arm/mach-tegra/tegra2_clocks.c @@ -24,8 +24,7 @@ #include #include #include - -#include +#include #include diff --git a/arch/arm/mach-u300/clock.c b/arch/arm/mach-u300/clock.c index 7458fc6df5c6..fabcc49abe80 100644 --- a/arch/arm/mach-u300/clock.c +++ b/arch/arm/mach-u300/clock.c @@ -25,8 +25,8 @@ #include #include #include +#include -#include #include #include diff --git a/arch/arm/mach-ux500/clock.c b/arch/arm/mach-ux500/clock.c index 1675047daf20..531de5c63641 100644 --- a/arch/arm/mach-ux500/clock.c +++ b/arch/arm/mach-ux500/clock.c @@ -13,8 +13,7 @@ #include #include #include - -#include +#include #include #include diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c index e38acb0f89c8..8c1ca1d63538 100644 --- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -31,8 +31,8 @@ #include #include #include +#include -#include #include #include #include @@ -46,7 +46,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/arm/mach-vexpress/ct-ca9x4.c b/arch/arm/mach-vexpress/ct-ca9x4.c index c2e405a9e025..26a02eb57571 100644 --- a/arch/arm/mach-vexpress/ct-ca9x4.c +++ b/arch/arm/mach-vexpress/ct-ca9x4.c @@ -8,8 +8,8 @@ #include #include #include +#include -#include #include #include #include @@ -18,7 +18,6 @@ #include #include -#include #include #include diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c index 7eaa232180a5..d374a78986e8 100644 --- a/arch/arm/mach-vexpress/v2m.c +++ b/arch/arm/mach-vexpress/v2m.c @@ -11,15 +11,14 @@ #include #include #include +#include -#include #include #include #include #include #include -#include #include #include diff --git a/arch/arm/mach-w90x900/clock.h b/arch/arm/mach-w90x900/clock.h index c56ddab3d912..b88a1b16b2e9 100644 --- a/arch/arm/mach-w90x900/clock.h +++ b/arch/arm/mach-w90x900/clock.h @@ -10,7 +10,7 @@ * the Free Software Foundation; either version 2 of the License. */ -#include +#include void nuc900_clk_enable(struct clk *clk, int enable); void nuc900_subclk_enable(struct clk *clk, int enable); diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig index 92c5bb7909f5..c9408434a855 100644 --- a/arch/arm/plat-omap/Kconfig +++ b/arch/arm/plat-omap/Kconfig @@ -11,13 +11,13 @@ choice config ARCH_OMAP1 bool "TI OMAP1" - select COMMON_CLKDEV + select CLKDEV_LOOKUP help "Systems based on omap7xx, omap15xx or omap16xx" config ARCH_OMAP2PLUS bool "TI OMAP2/3/4" - select COMMON_CLKDEV + select CLKDEV_LOOKUP help "Systems based on OMAP2, OMAP3 or OMAP4" diff --git a/arch/arm/plat-omap/include/plat/clkdev_omap.h b/arch/arm/plat-omap/include/plat/clkdev_omap.h index bb937f3fabed..4b2028ab4d2b 100644 --- a/arch/arm/plat-omap/include/plat/clkdev_omap.h +++ b/arch/arm/plat-omap/include/plat/clkdev_omap.h @@ -8,7 +8,7 @@ #ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_PLAT_CLKDEV_OMAP_H #define __ARCH_ARM_PLAT_OMAP_INCLUDE_PLAT_CLKDEV_OMAP_H -#include +#include struct omap_clk { u16 cpu; diff --git a/arch/arm/plat-spear/include/plat/clock.h b/arch/arm/plat-spear/include/plat/clock.h index 298bafc0a52f..2572260f990f 100644 --- a/arch/arm/plat-spear/include/plat/clock.h +++ b/arch/arm/plat-spear/include/plat/clock.h @@ -15,7 +15,7 @@ #define __PLAT_CLOCK_H #include -#include +#include #include /* clk structure flags */ diff --git a/arch/arm/plat-stmp3xxx/clock.c b/arch/arm/plat-stmp3xxx/clock.c index e593a2a801c6..2e712e17ce72 100644 --- a/arch/arm/plat-stmp3xxx/clock.c +++ b/arch/arm/plat-stmp3xxx/clock.c @@ -25,9 +25,9 @@ #include #include #include +#include #include -#include #include #include diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 5c075f562eba..cfc510608039 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -1,7 +1,7 @@ config SUPERH def_bool y select EMBEDDED - select HAVE_CLK + select CLKDEV_LOOKUP select HAVE_IDE if HAS_IOPORT select HAVE_MEMBLOCK select HAVE_OPROFILE diff --git a/arch/sh/boards/mach-highlander/setup.c b/arch/sh/boards/mach-highlander/setup.c index a5ecfbacaf36..87618c91d178 100644 --- a/arch/sh/boards/mach-highlander/setup.c +++ b/arch/sh/boards/mach-highlander/setup.c @@ -24,10 +24,10 @@ #include #include #include +#include #include #include #include -#include #include #include #include diff --git a/arch/sh/include/asm/clkdev.h b/arch/sh/include/asm/clkdev.h index 5645f358128b..6ba91868201c 100644 --- a/arch/sh/include/asm/clkdev.h +++ b/arch/sh/include/asm/clkdev.h @@ -1,9 +1,5 @@ /* - * arch/sh/include/asm/clkdev.h - * - * Cloned from arch/arm/include/asm/clkdev.h: - * - * Copyright (C) 2008 Russell King. + * Copyright (C) 2010 Paul Mundt * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -11,25 +7,25 @@ * * Helper for the clk API to assist looking up a struct clk. */ -#ifndef __ASM_CLKDEV_H -#define __ASM_CLKDEV_H -struct clk; +#ifndef __CLKDEV__H_ +#define __CLKDEV__H_ -struct clk_lookup { - struct list_head node; - const char *dev_id; - const char *con_id; - struct clk *clk; -}; +#include +#include +#include -struct clk_lookup *clkdev_alloc(struct clk *clk, const char *con_id, - const char *dev_fmt, ...); +#include -void clkdev_add(struct clk_lookup *cl); -void clkdev_drop(struct clk_lookup *cl); +static inline struct clk_lookup_alloc *__clkdev_alloc(size_t size) +{ + if (!slab_is_available()) + return alloc_bootmem_low_pages(size); + else + return kzalloc(size, GFP_KERNEL); +} -void clkdev_add_table(struct clk_lookup *, size_t); -int clk_add_alias(const char *, const char *, char *, struct device *); +#define __clk_put(clk) +#define __clk_get(clk) ({ 1; }) -#endif +#endif /* __CLKDEV_H__ */ diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile index 8eed6a485446..cf6522179523 100644 --- a/arch/sh/kernel/Makefile +++ b/arch/sh/kernel/Makefile @@ -11,7 +11,7 @@ endif CFLAGS_REMOVE_return_address.o = -pg -obj-y := clkdev.o debugtraps.o dma-nommu.o dumpstack.o \ +obj-y := debugtraps.o dma-nommu.o dumpstack.o \ idle.o io.o irq.o irq_$(BITS).o kdebugfs.o \ machvec.o nmi_debug.o process.o \ process_$(BITS).o ptrace.o ptrace_$(BITS).o \ diff --git a/arch/sh/kernel/clkdev.c b/arch/sh/kernel/clkdev.c deleted file mode 100644 index 1f800ef4a735..000000000000 --- a/arch/sh/kernel/clkdev.c +++ /dev/null @@ -1,171 +0,0 @@ -/* - * arch/sh/kernel/clkdev.c - * - * Cloned from arch/arm/common/clkdev.c: - * - * Copyright (C) 2008 Russell King. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Helper for the clk API to assist looking up a struct clk. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static LIST_HEAD(clocks); -static DEFINE_MUTEX(clocks_mutex); - -/* - * Find the correct struct clk for the device and connection ID. - * We do slightly fuzzy matching here: - * An entry with a NULL ID is assumed to be a wildcard. - * If an entry has a device ID, it must match - * If an entry has a connection ID, it must match - * Then we take the most specific entry - with the following - * order of precedence: dev+con > dev only > con only. - */ -static struct clk *clk_find(const char *dev_id, const char *con_id) -{ - struct clk_lookup *p; - struct clk *clk = NULL; - int match, best = 0; - - list_for_each_entry(p, &clocks, node) { - match = 0; - if (p->dev_id) { - if (!dev_id || strcmp(p->dev_id, dev_id)) - continue; - match += 2; - } - if (p->con_id) { - if (!con_id || strcmp(p->con_id, con_id)) - continue; - match += 1; - } - if (match == 0) - continue; - - if (match > best) { - clk = p->clk; - best = match; - } - } - return clk; -} - -struct clk *clk_get_sys(const char *dev_id, const char *con_id) -{ - struct clk *clk; - - mutex_lock(&clocks_mutex); - clk = clk_find(dev_id, con_id); - mutex_unlock(&clocks_mutex); - - return clk ? clk : ERR_PTR(-ENOENT); -} -EXPORT_SYMBOL(clk_get_sys); - -void clkdev_add(struct clk_lookup *cl) -{ - mutex_lock(&clocks_mutex); - list_add_tail(&cl->node, &clocks); - mutex_unlock(&clocks_mutex); -} -EXPORT_SYMBOL(clkdev_add); - -void __init clkdev_add_table(struct clk_lookup *cl, size_t num) -{ - mutex_lock(&clocks_mutex); - while (num--) { - list_add_tail(&cl->node, &clocks); - cl++; - } - mutex_unlock(&clocks_mutex); -} - -#define MAX_DEV_ID 20 -#define MAX_CON_ID 16 - -struct clk_lookup_alloc { - struct clk_lookup cl; - char dev_id[MAX_DEV_ID]; - char con_id[MAX_CON_ID]; -}; - -struct clk_lookup * __init_refok -clkdev_alloc(struct clk *clk, const char *con_id, const char *dev_fmt, ...) -{ - struct clk_lookup_alloc *cla; - - if (!slab_is_available()) - cla = alloc_bootmem_low_pages(sizeof(*cla)); - else - cla = kzalloc(sizeof(*cla), GFP_KERNEL); - - if (!cla) - return NULL; - - cla->cl.clk = clk; - if (con_id) { - strlcpy(cla->con_id, con_id, sizeof(cla->con_id)); - cla->cl.con_id = cla->con_id; - } - - if (dev_fmt) { - va_list ap; - - va_start(ap, dev_fmt); - vscnprintf(cla->dev_id, sizeof(cla->dev_id), dev_fmt, ap); - cla->cl.dev_id = cla->dev_id; - va_end(ap); - } - - return &cla->cl; -} -EXPORT_SYMBOL(clkdev_alloc); - -int clk_add_alias(const char *alias, const char *alias_dev_name, char *id, - struct device *dev) -{ - struct clk *r = clk_get(dev, id); - struct clk_lookup *l; - - if (IS_ERR(r)) - return PTR_ERR(r); - - l = clkdev_alloc(r, alias, alias_dev_name); - clk_put(r); - if (!l) - return -ENODEV; - clkdev_add(l); - return 0; -} -EXPORT_SYMBOL(clk_add_alias); - -/* - * clkdev_drop - remove a clock dynamically allocated - */ -void clkdev_drop(struct clk_lookup *cl) -{ - struct clk_lookup_alloc *cla = container_of(cl, struct clk_lookup_alloc, cl); - - mutex_lock(&clocks_mutex); - list_del(&cl->node); - mutex_unlock(&clocks_mutex); - kfree(cla); -} -EXPORT_SYMBOL(clkdev_drop); diff --git a/arch/sh/kernel/cpu/clock-cpg.c b/arch/sh/kernel/cpu/clock-cpg.c index e2f63d68da51..dd0e0f211359 100644 --- a/arch/sh/kernel/cpu/clock-cpg.c +++ b/arch/sh/kernel/cpu/clock-cpg.c @@ -2,7 +2,7 @@ #include #include #include -#include +#include #include static struct clk master_clk = { diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c index 50f887dda565..4187cf4fe185 100644 --- a/arch/sh/kernel/cpu/clock.c +++ b/arch/sh/kernel/cpu/clock.c @@ -48,20 +48,4 @@ int __init clk_init(void) return ret; } -/* - * Returns a clock. Note that we first try to use device id on the bus - * and clock name. If this fails, we try to use clock name only. - */ -struct clk *clk_get(struct device *dev, const char *con_id) -{ - const char *dev_id = dev ? dev_name(dev) : NULL; - - return clk_get_sys(dev_id, con_id); -} -EXPORT_SYMBOL_GPL(clk_get); - -void clk_put(struct clk *clk) -{ -} -EXPORT_SYMBOL_GPL(clk_put); diff --git a/arch/sh/kernel/cpu/sh4/clock-sh4-202.c b/arch/sh/kernel/cpu/sh4/clock-sh4-202.c index 4eabc68cd753..6c1492b8431a 100644 --- a/arch/sh/kernel/cpu/sh4/clock-sh4-202.c +++ b/arch/sh/kernel/cpu/sh4/clock-sh4-202.c @@ -13,7 +13,7 @@ #include #include #include -#include +#include #include #include diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7343.c b/arch/sh/kernel/cpu/sh4a/clock-sh7343.c index 71291ae201b9..93c646072c1b 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7343.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7343.c @@ -21,7 +21,7 @@ #include #include #include -#include +#include #include /* SH7343 registers */ diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7366.c b/arch/sh/kernel/cpu/sh4a/clock-sh7366.c index 7ce5bbcd4084..049dc0628ccc 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7366.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7366.c @@ -21,7 +21,7 @@ #include #include #include -#include +#include #include /* SH7366 registers */ diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c index 2030f3d9fac7..9d23a36f0647 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c @@ -21,7 +21,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7723.c b/arch/sh/kernel/cpu/sh4a/clock-sh7723.c index d3938f0d3702..55493cd5bd8f 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7723.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7723.c @@ -22,7 +22,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c index 2d9700c6b53a..527936bb3ce0 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c @@ -22,7 +22,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7757.c b/arch/sh/kernel/cpu/sh4a/clock-sh7757.c index ce39a2ae8c6c..e073e3eb4c3d 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7757.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7757.c @@ -12,7 +12,7 @@ #include #include #include -#include +#include #include #include diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7763.c b/arch/sh/kernel/cpu/sh4a/clock-sh7763.c index 1f1df48008cd..599630fc4d3b 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7763.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7763.c @@ -13,7 +13,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7780.c b/arch/sh/kernel/cpu/sh4a/clock-sh7780.c index 62d706350060..8894926479a6 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7780.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7780.c @@ -12,7 +12,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7785.c b/arch/sh/kernel/cpu/sh4a/clock-sh7785.c index c3e458aaa2b7..2d960247f3eb 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7785.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7785.c @@ -14,7 +14,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7786.c b/arch/sh/kernel/cpu/sh4a/clock-sh7786.c index 597c9fbe49c6..42e403be9076 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7786.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7786.c @@ -13,7 +13,7 @@ #include #include #include -#include +#include #include #include diff --git a/arch/sh/kernel/cpu/sh4a/clock-shx3.c b/arch/sh/kernel/cpu/sh4a/clock-shx3.c index 4f70df6b6169..1afdb93b8ccb 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-shx3.c +++ b/arch/sh/kernel/cpu/sh4a/clock-shx3.c @@ -14,7 +14,7 @@ #include #include #include -#include +#include #include #include diff --git a/drivers/Kconfig b/drivers/Kconfig index a2b902f4d437..3d93b3a3d630 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -111,4 +111,6 @@ source "drivers/xen/Kconfig" source "drivers/staging/Kconfig" source "drivers/platform/Kconfig" + +source "drivers/clk/Kconfig" endmenu diff --git a/drivers/Makefile b/drivers/Makefile index 14cf9077bb2b..4af7d5b124ce 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -114,3 +114,5 @@ obj-$(CONFIG_VLYNQ) += vlynq/ obj-$(CONFIG_STAGING) += staging/ obj-y += platform/ obj-y += ieee802154/ +#common clk code +obj-y += clk/ diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig new file mode 100644 index 000000000000..4168c8896e16 --- /dev/null +++ b/drivers/clk/Kconfig @@ -0,0 +1,4 @@ + +config CLKDEV_LOOKUP + bool + select HAVE_CLK diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile new file mode 100644 index 000000000000..07613fa172c9 --- /dev/null +++ b/drivers/clk/Makefile @@ -0,0 +1,2 @@ + +obj-$(CONFIG_CLKDEV_LOOKUP) += clkdev.o diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c new file mode 100644 index 000000000000..0fc0a79852de --- /dev/null +++ b/drivers/clk/clkdev.c @@ -0,0 +1,176 @@ +/* + * drivers/clk/clkdev.c + * + * Copyright (C) 2008 Russell King. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Helper for the clk API to assist looking up a struct clk. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static LIST_HEAD(clocks); +static DEFINE_MUTEX(clocks_mutex); + +/* + * Find the correct struct clk for the device and connection ID. + * We do slightly fuzzy matching here: + * An entry with a NULL ID is assumed to be a wildcard. + * If an entry has a device ID, it must match + * If an entry has a connection ID, it must match + * Then we take the most specific entry - with the following + * order of precedence: dev+con > dev only > con only. + */ +static struct clk *clk_find(const char *dev_id, const char *con_id) +{ + struct clk_lookup *p; + struct clk *clk = NULL; + int match, best = 0; + + list_for_each_entry(p, &clocks, node) { + match = 0; + if (p->dev_id) { + if (!dev_id || strcmp(p->dev_id, dev_id)) + continue; + match += 2; + } + if (p->con_id) { + if (!con_id || strcmp(p->con_id, con_id)) + continue; + match += 1; + } + + if (match > best) { + clk = p->clk; + if (match != 3) + best = match; + else + break; + } + } + return clk; +} + +struct clk *clk_get_sys(const char *dev_id, const char *con_id) +{ + struct clk *clk; + + mutex_lock(&clocks_mutex); + clk = clk_find(dev_id, con_id); + if (clk && !__clk_get(clk)) + clk = NULL; + mutex_unlock(&clocks_mutex); + + return clk ? clk : ERR_PTR(-ENOENT); +} +EXPORT_SYMBOL(clk_get_sys); + +struct clk *clk_get(struct device *dev, const char *con_id) +{ + const char *dev_id = dev ? dev_name(dev) : NULL; + + return clk_get_sys(dev_id, con_id); +} +EXPORT_SYMBOL(clk_get); + +void clk_put(struct clk *clk) +{ + __clk_put(clk); +} +EXPORT_SYMBOL(clk_put); + +void clkdev_add(struct clk_lookup *cl) +{ + mutex_lock(&clocks_mutex); + list_add_tail(&cl->node, &clocks); + mutex_unlock(&clocks_mutex); +} +EXPORT_SYMBOL(clkdev_add); + +void __init clkdev_add_table(struct clk_lookup *cl, size_t num) +{ + mutex_lock(&clocks_mutex); + while (num--) { + list_add_tail(&cl->node, &clocks); + cl++; + } + mutex_unlock(&clocks_mutex); +} + +#define MAX_DEV_ID 20 +#define MAX_CON_ID 16 + +struct clk_lookup_alloc { + struct clk_lookup cl; + char dev_id[MAX_DEV_ID]; + char con_id[MAX_CON_ID]; +}; + +struct clk_lookup * __init_refok +clkdev_alloc(struct clk *clk, const char *con_id, const char *dev_fmt, ...) +{ + struct clk_lookup_alloc *cla; + + cla = __clkdev_alloc(sizeof(*cla)); + if (!cla) + return NULL; + + cla->cl.clk = clk; + if (con_id) { + strlcpy(cla->con_id, con_id, sizeof(cla->con_id)); + cla->cl.con_id = cla->con_id; + } + + if (dev_fmt) { + va_list ap; + + va_start(ap, dev_fmt); + vscnprintf(cla->dev_id, sizeof(cla->dev_id), dev_fmt, ap); + cla->cl.dev_id = cla->dev_id; + va_end(ap); + } + + return &cla->cl; +} +EXPORT_SYMBOL(clkdev_alloc); + +int clk_add_alias(const char *alias, const char *alias_dev_name, char *id, + struct device *dev) +{ + struct clk *r = clk_get(dev, id); + struct clk_lookup *l; + + if (IS_ERR(r)) + return PTR_ERR(r); + + l = clkdev_alloc(r, alias, alias_dev_name); + clk_put(r); + if (!l) + return -ENODEV; + clkdev_add(l); + return 0; +} +EXPORT_SYMBOL(clk_add_alias); + +/* + * clkdev_drop - remove a clock dynamically allocated + */ +void clkdev_drop(struct clk_lookup *cl) +{ + mutex_lock(&clocks_mutex); + list_del(&cl->node); + mutex_unlock(&clocks_mutex); + kfree(cl); +} +EXPORT_SYMBOL(clkdev_drop); diff --git a/include/linux/clkdev.h b/include/linux/clkdev.h new file mode 100644 index 000000000000..457bcb0a310a --- /dev/null +++ b/include/linux/clkdev.h @@ -0,0 +1,36 @@ +/* + * include/linux/clkdev.h + * + * Copyright (C) 2008 Russell King. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Helper for the clk API to assist looking up a struct clk. + */ +#ifndef __CLKDEV_H +#define __CLKDEV_H + +#include + +struct clk; +struct device; + +struct clk_lookup { + struct list_head node; + const char *dev_id; + const char *con_id; + struct clk *clk; +}; + +struct clk_lookup *clkdev_alloc(struct clk *clk, const char *con_id, + const char *dev_fmt, ...); + +void clkdev_add(struct clk_lookup *cl); +void clkdev_drop(struct clk_lookup *cl); + +void clkdev_add_table(struct clk_lookup *, size_t); +int clk_add_alias(const char *, const char *, char *, struct device *); + +#endif -- 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