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8e4b7721f6
Add helpers for registering clocks and clock providers on Pistachio. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Cc: James Hartley <james.hartley@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Patchwork: https://patchwork.linux-mips.org/patch/9318/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
124 lines
2.8 KiB
C
124 lines
2.8 KiB
C
/*
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* Copyright (C) 2014 Google, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*/
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#ifndef __PISTACHIO_CLK_H
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#define __PISTACHIO_CLK_H
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#include <linux/clk-provider.h>
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struct pistachio_gate {
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unsigned int id;
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unsigned long reg;
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unsigned int shift;
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const char *name;
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const char *parent;
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};
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#define GATE(_id, _name, _pname, _reg, _shift) \
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{ \
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.id = _id, \
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.reg = _reg, \
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.shift = _shift, \
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.name = _name, \
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.parent = _pname, \
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}
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struct pistachio_mux {
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unsigned int id;
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unsigned long reg;
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unsigned int shift;
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unsigned int num_parents;
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const char *name;
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const char **parents;
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};
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#define PNAME(x) static const char *x[] __initconst
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#define MUX(_id, _name, _pnames, _reg, _shift) \
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{ \
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.id = _id, \
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.reg = _reg, \
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.shift = _shift, \
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.name = _name, \
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.parents = _pnames, \
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.num_parents = ARRAY_SIZE(_pnames) \
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}
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struct pistachio_div {
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unsigned int id;
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unsigned long reg;
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unsigned int width;
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unsigned int div_flags;
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const char *name;
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const char *parent;
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};
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#define DIV(_id, _name, _pname, _reg, _width) \
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{ \
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.id = _id, \
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.reg = _reg, \
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.width = _width, \
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.div_flags = 0, \
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.name = _name, \
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.parent = _pname, \
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}
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#define DIV_F(_id, _name, _pname, _reg, _width, _div_flags) \
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{ \
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.id = _id, \
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.reg = _reg, \
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.width = _width, \
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.div_flags = _div_flags, \
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.name = _name, \
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.parent = _pname, \
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}
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struct pistachio_fixed_factor {
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unsigned int id;
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unsigned int div;
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const char *name;
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const char *parent;
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};
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#define FIXED_FACTOR(_id, _name, _pname, _div) \
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{ \
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.id = _id, \
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.div = _div, \
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.name = _name, \
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.parent = _pname, \
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}
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struct pistachio_clk_provider {
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struct device_node *node;
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void __iomem *base;
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struct clk_onecell_data clk_data;
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};
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extern struct pistachio_clk_provider *
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pistachio_clk_alloc_provider(struct device_node *node, unsigned int num_clks);
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extern void pistachio_clk_register_provider(struct pistachio_clk_provider *p);
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extern void pistachio_clk_register_gate(struct pistachio_clk_provider *p,
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struct pistachio_gate *gate,
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unsigned int num);
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extern void pistachio_clk_register_mux(struct pistachio_clk_provider *p,
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struct pistachio_mux *mux,
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unsigned int num);
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extern void pistachio_clk_register_div(struct pistachio_clk_provider *p,
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struct pistachio_div *div,
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unsigned int num);
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extern void
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pistachio_clk_register_fixed_factor(struct pistachio_clk_provider *p,
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struct pistachio_fixed_factor *ff,
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unsigned int num);
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extern void pistachio_clk_force_enable(struct pistachio_clk_provider *p,
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unsigned int *clk_ids, unsigned int num);
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#endif
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