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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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6f6682809b
This provides an implementation of the <linux/clk.h> interface for arch/powerpc using a set of function pointers in clk_functions. Platforms that want to support this interface should fill clk_functions and select CONFIG_PPC_CLOCK in Kconfig. Signed-off-by: Domen Puncer <domen.puncer@telargo.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
83 lines
1.7 KiB
C
83 lines
1.7 KiB
C
/*
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* Dummy clk implementations for powerpc.
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* These need to be overridden in platform code.
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*/
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#include <linux/clk.h>
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#include <linux/err.h>
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#include <linux/errno.h>
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#include <linux/module.h>
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#include <asm/clk_interface.h>
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struct clk_interface clk_functions;
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struct clk *clk_get(struct device *dev, const char *id)
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{
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if (clk_functions.clk_get)
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return clk_functions.clk_get(dev, id);
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return ERR_PTR(-ENOSYS);
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}
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EXPORT_SYMBOL(clk_get);
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void clk_put(struct clk *clk)
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{
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if (clk_functions.clk_put)
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clk_functions.clk_put(clk);
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}
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EXPORT_SYMBOL(clk_put);
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int clk_enable(struct clk *clk)
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{
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if (clk_functions.clk_enable)
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return clk_functions.clk_enable(clk);
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return -ENOSYS;
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}
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EXPORT_SYMBOL(clk_enable);
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void clk_disable(struct clk *clk)
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{
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if (clk_functions.clk_disable)
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clk_functions.clk_disable(clk);
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}
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EXPORT_SYMBOL(clk_disable);
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unsigned long clk_get_rate(struct clk *clk)
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{
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if (clk_functions.clk_get_rate)
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return clk_functions.clk_get_rate(clk);
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return 0;
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}
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EXPORT_SYMBOL(clk_get_rate);
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long clk_round_rate(struct clk *clk, unsigned long rate)
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{
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if (clk_functions.clk_round_rate)
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return clk_functions.clk_round_rate(clk, rate);
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return -ENOSYS;
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}
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EXPORT_SYMBOL(clk_round_rate);
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int clk_set_rate(struct clk *clk, unsigned long rate)
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{
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if (clk_functions.clk_set_rate)
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return clk_functions.clk_set_rate(clk, rate);
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return -ENOSYS;
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}
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EXPORT_SYMBOL(clk_set_rate);
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struct clk *clk_get_parent(struct clk *clk)
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{
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if (clk_functions.clk_get_parent)
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return clk_functions.clk_get_parent(clk);
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return ERR_PTR(-ENOSYS);
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}
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EXPORT_SYMBOL(clk_get_parent);
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int clk_set_parent(struct clk *clk, struct clk *parent)
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{
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if (clk_functions.clk_set_parent)
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return clk_functions.clk_set_parent(clk, parent);
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return -ENOSYS;
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}
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EXPORT_SYMBOL(clk_set_parent);
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