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linux/drivers/clk/samsung/clk-pll.h
Tomasz Figa 5c89658a2e clk: samsung: pll: Add support for rate configuration of PLL46xx
This patch implements round_rate and set_rate callbacks of PLL46xx
driver to allow reconfiguration of PLL at runtime.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-09-06 13:33:47 -07:00

97 lines
1.9 KiB
C

/*
* Copyright (c) 2013 Samsung Electronics Co., Ltd.
* Copyright (c) 2013 Linaro Ltd.
*
* 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.
*
* Common Clock Framework support for all PLL's in Samsung platforms
*/
#ifndef __SAMSUNG_CLK_PLL_H
#define __SAMSUNG_CLK_PLL_H
enum samsung_pll_type {
pll_35xx,
pll_36xx,
pll_2550,
pll_2650,
pll_4500,
pll_4502,
pll_4508,
pll_4600,
pll_4650,
pll_4650c,
pll_6552,
pll_6553,
};
#define PLL_35XX_RATE(_rate, _m, _p, _s) \
{ \
.rate = (_rate), \
.mdiv = (_m), \
.pdiv = (_p), \
.sdiv = (_s), \
}
#define PLL_36XX_RATE(_rate, _m, _p, _s, _k) \
{ \
.rate = (_rate), \
.mdiv = (_m), \
.pdiv = (_p), \
.sdiv = (_s), \
.kdiv = (_k), \
}
#define PLL_45XX_RATE(_rate, _m, _p, _s, _afc) \
{ \
.rate = (_rate), \
.mdiv = (_m), \
.pdiv = (_p), \
.sdiv = (_s), \
.afc = (_afc), \
}
#define PLL_4600_RATE(_rate, _m, _p, _s, _k, _vsel) \
{ \
.rate = (_rate), \
.mdiv = (_m), \
.pdiv = (_p), \
.sdiv = (_s), \
.kdiv = (_k), \
.vsel = (_vsel), \
}
#define PLL_4650_RATE(_rate, _m, _p, _s, _k, _mfr, _mrr, _vsel) \
{ \
.rate = (_rate), \
.mdiv = (_m), \
.pdiv = (_p), \
.sdiv = (_s), \
.kdiv = (_k), \
.mfr = (_mfr), \
.mrr = (_mrr), \
.vsel = (_vsel), \
}
/* NOTE: Rate table should be kept sorted in descending order. */
struct samsung_pll_rate_table {
unsigned int rate;
unsigned int pdiv;
unsigned int mdiv;
unsigned int sdiv;
unsigned int kdiv;
unsigned int afc;
unsigned int mfr;
unsigned int mrr;
unsigned int vsel;
};
extern struct clk * __init samsung_clk_register_pll2550x(const char *name,
const char *pname, const void __iomem *reg_base,
const unsigned long offset);
#endif /* __SAMSUNG_CLK_PLL_H */