[POWERPC] clk.h interface for platforms (6f668280) · Commits · 戴 / test

arch/powerpc/Kconfig

+4 −0

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		@@ -663,3 +663,7 @@ config KEYS_COMPAT
		default y

		source "crypto/Kconfig"

		config PPC_CLOCK
		bool
		default n

arch/powerpc/kernel/Makefile

+1 −0

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		@@ -24,6 +24,7 @@ obj-$(CONFIG_PPC64) += vdso64/
		obj-$(CONFIG_ALTIVEC) += vecemu.o vector.o
		obj-$(CONFIG_PPC_970_NAP) += idle_power4.o
		obj-$(CONFIG_PPC_OF) += of_device.o of_platform.o prom_parse.o
		obj-$(CONFIG_PPC_CLOCK) += clock.o
		procfs-$(CONFIG_PPC64) := proc_ppc64.o
		obj-$(CONFIG_PROC_FS) += $(procfs-y)
		rtaspci-$(CONFIG_PPC64)-$(CONFIG_PCI) := rtas_pci.o

arch/powerpc/kernel/clock.c

0 → 100644

+82 −0

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		/*
		* Dummy clk implementations for powerpc.
		* These need to be overridden in platform code.
		*/

		#include <linux/clk.h>
		#include <linux/err.h>
		#include <linux/errno.h>
		#include <linux/module.h>
		#include <asm/clk_interface.h>

		struct clk_interface clk_functions;

		struct clk clk_get(struct device dev, const char *id)
		{
		if (clk_functions.clk_get)
		return clk_functions.clk_get(dev, id);
		return ERR_PTR(-ENOSYS);
		}
		EXPORT_SYMBOL(clk_get);

		void clk_put(struct clk *clk)
		{
		if (clk_functions.clk_put)
		clk_functions.clk_put(clk);
		}
		EXPORT_SYMBOL(clk_put);

		int clk_enable(struct clk *clk)
		{
		if (clk_functions.clk_enable)
		return clk_functions.clk_enable(clk);
		return -ENOSYS;
		}
		EXPORT_SYMBOL(clk_enable);

		void clk_disable(struct clk *clk)
		{
		if (clk_functions.clk_disable)
		clk_functions.clk_disable(clk);
		}
		EXPORT_SYMBOL(clk_disable);

		unsigned long clk_get_rate(struct clk *clk)
		{
		if (clk_functions.clk_get_rate)
		return clk_functions.clk_get_rate(clk);
		return 0;
		}
		EXPORT_SYMBOL(clk_get_rate);

		long clk_round_rate(struct clk *clk, unsigned long rate)
		{
		if (clk_functions.clk_round_rate)
		return clk_functions.clk_round_rate(clk, rate);
		return -ENOSYS;
		}
		EXPORT_SYMBOL(clk_round_rate);

		int clk_set_rate(struct clk *clk, unsigned long rate)
		{
		if (clk_functions.clk_set_rate)
		return clk_functions.clk_set_rate(clk, rate);
		return -ENOSYS;
		}
		EXPORT_SYMBOL(clk_set_rate);

		struct clk clk_get_parent(struct clk clk)
		{
		if (clk_functions.clk_get_parent)
		return clk_functions.clk_get_parent(clk);
		return ERR_PTR(-ENOSYS);
		}
		EXPORT_SYMBOL(clk_get_parent);

		int clk_set_parent(struct clk clk, struct clk parent)
		{
		if (clk_functions.clk_set_parent)
		return clk_functions.clk_set_parent(clk, parent);
		return -ENOSYS;
		}
		EXPORT_SYMBOL(clk_set_parent);

arch/powerpc/platforms/52xx/Kconfig

+1 −0

Original line number	Diff line number	Diff line
		config PPC_MPC52xx
		bool
		select FSL_SOC
		select PPC_CLOCK
		default n

		config PPC_MPC5200

include/asm-powerpc/clk_interface.h

0 → 100644

+20 −0

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		#ifndef __ASM_POWERPC_CLK_INTERFACE_H
		#define __ASM_POWERPC_CLK_INTERFACE_H

		#include <linux/clk.h>

		struct clk_interface {
		struct clk* (clk_get) (struct device dev, const char *id);
		int (clk_enable) (struct clk clk);
		void (clk_disable) (struct clk clk);
		unsigned long (clk_get_rate) (struct clk clk);
		void (clk_put) (struct clk clk);
		long (clk_round_rate) (struct clk clk, unsigned long rate);
		int (clk_set_rate) (struct clk clk, unsigned long rate);
		int (clk_set_parent) (struct clk clk, struct clk *parent);
		struct clk* (clk_get_parent) (struct clk clk);
		};

		extern struct clk_interface clk_functions;

		#endif /* __ASM_POWERPC_CLK_INTERFACE_H */

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