2 * Copyright (C) 2016 Maxime Ripard
3 * Maxime Ripard <maxime.ripard@free-electrons.com>
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of
8 * the License, or (at your option) any later version.
11 #include <linux/clk-provider.h>
15 void ccu_gate_helper_disable(struct ccu_common *common, u32 gate)
23 spin_lock_irqsave(common->lock, flags);
25 reg = readl(common->base + common->reg);
26 writel(reg & ~gate, common->base + common->reg);
28 spin_unlock_irqrestore(common->lock, flags);
31 static void ccu_gate_disable(struct clk_hw *hw)
33 struct ccu_gate *cg = hw_to_ccu_gate(hw);
35 return ccu_gate_helper_disable(&cg->common, cg->enable);
38 int ccu_gate_helper_enable(struct ccu_common *common, u32 gate)
46 spin_lock_irqsave(common->lock, flags);
48 reg = readl(common->base + common->reg);
49 writel(reg | gate, common->base + common->reg);
51 spin_unlock_irqrestore(common->lock, flags);
56 static int ccu_gate_enable(struct clk_hw *hw)
58 struct ccu_gate *cg = hw_to_ccu_gate(hw);
60 return ccu_gate_helper_enable(&cg->common, cg->enable);
63 int ccu_gate_helper_is_enabled(struct ccu_common *common, u32 gate)
68 return readl(common->base + common->reg) & gate;
71 static int ccu_gate_is_enabled(struct clk_hw *hw)
73 struct ccu_gate *cg = hw_to_ccu_gate(hw);
75 return ccu_gate_helper_is_enabled(&cg->common, cg->enable);
78 const struct clk_ops ccu_gate_ops = {
79 .disable = ccu_gate_disable,
80 .enable = ccu_gate_enable,
81 .is_enabled = ccu_gate_is_enabled,