bdb08cb2d3
We need to support more than one name+device for a struct clk for a small number of peripherals. We do this by re-using struct clk alias to another struct clk - IOW, if we find that the entry we're using is an alias, we return the aliased entry not the one we found. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
struct clk;
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struct clkops {
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void (*enable)(struct clk *);
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void (*disable)(struct clk *);
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unsigned long (*getrate)(struct clk *);
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};
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struct clk {
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struct list_head node;
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const char *name;
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struct device *dev;
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const struct clkops *ops;
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unsigned long rate;
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unsigned int cken;
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unsigned int delay;
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unsigned int enabled;
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struct clk *other;
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};
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#define INIT_CKEN(_name, _cken, _rate, _delay, _dev) \
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{ \
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.name = _name, \
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.dev = _dev, \
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.ops = &clk_cken_ops, \
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.rate = _rate, \
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.cken = CKEN_##_cken, \
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.delay = _delay, \
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}
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#define INIT_CK(_name, _cken, _ops, _dev) \
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{ \
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.name = _name, \
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.dev = _dev, \
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.ops = _ops, \
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.cken = CKEN_##_cken, \
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}
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/*
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* This is a placeholder to alias one clock device+name pair
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* to another struct clk.
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*/
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#define INIT_CKOTHER(_name, _other, _dev) \
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{ \
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.name = _name, \
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.dev = _dev, \
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.other = _other, \
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}
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extern const struct clkops clk_cken_ops;
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void clk_cken_enable(struct clk *clk);
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void clk_cken_disable(struct clk *clk);
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void clks_register(struct clk *clks, size_t num);
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