Hi!
Paul, what do you say about this?
Sylvain suggested it could also be integrated with define_machine
interface.
If it's OK, it would be cool if it got merged in next release cycle.
Domen
On 11/07/07 11:32 +0200, Domen Puncer wrote:
> clk interface for arch/powerpc, platforms should fill
> clk_functions.
>
> Signed-off-by: Domen Puncer <[EMAIL PROTECTED]>
>
> ---
> arch/powerpc/kernel/Makefile | 3 -
> arch/powerpc/kernel/clock.c | 82
> ++++++++++++++++++++++++++++++++++++
> include/asm-powerpc/clk_interface.h | 20 ++++++++
> 3 files changed, 104 insertions(+), 1 deletion(-)
>
> Index: work-powerpc.git/arch/powerpc/kernel/clock.c
> ===================================================================
> --- /dev/null
> +++ work-powerpc.git/arch/powerpc/kernel/clock.c
> @@ -0,0 +1,82 @@
> +/*
> + * 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);
> Index: work-powerpc.git/include/asm-powerpc/clk_interface.h
> ===================================================================
> --- /dev/null
> +++ work-powerpc.git/include/asm-powerpc/clk_interface.h
> @@ -0,0 +1,20 @@
> +#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 */
> Index: work-powerpc.git/arch/powerpc/kernel/Makefile
> ===================================================================
> --- work-powerpc.git.orig/arch/powerpc/kernel/Makefile
> +++ work-powerpc.git/arch/powerpc/kernel/Makefile
> @@ -12,7 +12,8 @@ endif
>
> obj-y := semaphore.o cputable.o ptrace.o
> syscalls.o \
> irq.o align.o signal_32.o pmc.o vdso.o \
> - init_task.o process.o systbl.o idle.o
> + init_task.o process.o systbl.o idle.o \
> + clock.o
> obj-y += vdso32/
> obj-$(CONFIG_PPC64) += setup_64.o binfmt_elf32.o sys_ppc32.o \
> signal_64.o ptrace32.o \
> _______________________________________________
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> Linuxppc-dev@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-dev
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