1 // SPDX-License-Identifier: GPL-2.0-only
6 #include <linux/clk.h>
7 #include <linux/clk-provider.h>
12 #include "clk.h"
17 	const struct clk_ops *mux_ops = periph->mux_ops;  in clk_periph_get_parent()
18 	struct clk_hw *mux_hw = &periph->mux.hw;  in clk_periph_get_parent()
22 	return mux_ops->get_parent(mux_hw);  in clk_periph_get_parent()
28 	const struct clk_ops *mux_ops = periph->mux_ops;  in clk_periph_set_parent()
29 	struct clk_hw *mux_hw = &periph->mux.hw;  in clk_periph_set_parent()
33 	return mux_ops->set_parent(mux_hw, index);  in clk_periph_set_parent()
40 	const struct clk_ops *div_ops = periph->div_ops;  in clk_periph_recalc_rate()
41 	struct clk_hw *div_hw = &periph->divider.hw;  in clk_periph_recalc_rate()
45 	return div_ops->recalc_rate(div_hw, parent_rate);  in clk_periph_recalc_rate()
52 	const struct clk_ops *div_ops = periph->div_ops;  in clk_periph_determine_rate()
53 	struct clk_hw *div_hw = &periph->divider.hw;  in clk_periph_determine_rate()
57 	return div_ops->determine_rate(div_hw, req);  in clk_periph_determine_rate()
64 	const struct clk_ops *div_ops = periph->div_ops;  in clk_periph_set_rate()
65 	struct clk_hw *div_hw = &periph->divider.hw;  in clk_periph_set_rate()
69 	return div_ops->set_rate(div_hw, rate, parent_rate);  in clk_periph_set_rate()
75 	const struct clk_ops *gate_ops = periph->gate_ops;  in clk_periph_is_enabled()
76 	struct clk_hw *gate_hw = &periph->gate.hw;  in clk_periph_is_enabled()
80 	return gate_ops->is_enabled(gate_hw);  in clk_periph_is_enabled()
86 	const struct clk_ops *gate_ops = periph->gate_ops;  in clk_periph_enable()
87 	struct clk_hw *gate_hw = &periph->gate.hw;  in clk_periph_enable()
91 	return gate_ops->enable(gate_hw);  in clk_periph_enable()
97 	const struct clk_ops *gate_ops = periph->gate_ops;  in clk_periph_disable()
98 	struct clk_hw *gate_hw = &periph->gate.hw;  in clk_periph_disable()
100 	gate_ops->disable(gate_hw);  in clk_periph_disable()
106 	const struct clk_ops *gate_ops = periph->gate_ops;  in clk_periph_disable_unused()
107 	struct clk_hw *gate_hw = &periph->gate.hw;  in clk_periph_disable_unused()
109 	gate_ops->disable_unused(gate_hw);  in clk_periph_disable_unused()
115 	const struct clk_ops *div_ops = periph->div_ops;  in clk_periph_restore_context()
116 	struct clk_hw *div_hw = &periph->divider.hw;  in clk_periph_restore_context()
123 	if (!(periph->gate.flags & TEGRA_PERIPH_NO_DIV))  in clk_periph_restore_context()
124 		div_ops->restore_context(div_hw);  in clk_periph_restore_context()
162 static struct clk *_tegra_clk_register_periph(const char *name,  in _tegra_clk_register_periph()
168 	struct clk *clk;  in _tegra_clk_register_periph()  local
171 	bool div = !(periph->gate.flags & TEGRA_PERIPH_NO_DIV);  in _tegra_clk_register_periph()
173 	if (periph->gate.flags & TEGRA_PERIPH_NO_DIV) {  in _tegra_clk_register_periph()
176 	} else if (periph->gate.flags & TEGRA_PERIPH_NO_GATE)  in _tegra_clk_register_periph()
186 	bank = get_reg_bank(periph->gate.clk_num);  in _tegra_clk_register_periph()
188 		return ERR_PTR(-EINVAL);  in _tegra_clk_register_periph()
191 	periph->hw.init = &init;  in _tegra_clk_register_periph()
192 	periph->magic = TEGRA_CLK_PERIPH_MAGIC;  in _tegra_clk_register_periph()
193 	periph->mux.reg = clk_base + offset;  in _tegra_clk_register_periph()
194 	periph->divider.reg = div ? (clk_base + offset) : NULL;  in _tegra_clk_register_periph()
195 	periph->gate.clk_base = clk_base;  in _tegra_clk_register_periph()
196 	periph->gate.regs = bank;  in _tegra_clk_register_periph()
197 	periph->gate.enable_refcnt = periph_clk_enb_refcnt;  in _tegra_clk_register_periph()
199 	clk = clk_register(NULL, &periph->hw);  in _tegra_clk_register_periph()
200 	if (IS_ERR(clk))  in _tegra_clk_register_periph()
201 		return clk;  in _tegra_clk_register_periph()
203 	periph->mux.hw.clk = clk;  in _tegra_clk_register_periph()
204 	periph->divider.hw.clk = div ? clk : NULL;  in _tegra_clk_register_periph()
205 	periph->gate.hw.clk = clk;  in _tegra_clk_register_periph()
207 	return clk;  in _tegra_clk_register_periph()
210 struct clk *tegra_clk_register_periph(const char *name,  in tegra_clk_register_periph()
219 struct clk *tegra_clk_register_periph_nodiv(const char *name,  in tegra_clk_register_periph_nodiv()
224 	periph->gate.flags |= TEGRA_PERIPH_NO_DIV;  in tegra_clk_register_periph_nodiv()
229 struct clk *tegra_clk_register_periph_data(void __iomem *clk_base,  in tegra_clk_register_periph_data()
232 	return _tegra_clk_register_periph(init->name, init->p.parent_names,  in tegra_clk_register_periph_data()
233 					  init->num_parents, &init->periph,  in tegra_clk_register_periph_data()
234 					  clk_base, init->offset, init->flags);  in tegra_clk_register_periph_data()