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Release 4.18 drivers/clk/actions/owl-gate.c

// SPDX-License-Identifier: GPL-2.0+
//
// OWL gate clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

#include <linux/clk-provider.h>
#include <linux/regmap.h>

#include "owl-gate.h"


void owl_gate_set(const struct owl_clk_common *common, const struct owl_gate_hw *gate_hw, bool enable) { int set = gate_hw->gate_flags & CLK_GATE_SET_TO_DISABLE ? 1 : 0; u32 reg; set ^= enable; regmap_read(common->regmap, gate_hw->reg, &reg); if (set) reg |= BIT(gate_hw->bit_idx); else reg &= ~BIT(gate_hw->bit_idx); regmap_write(common->regmap, gate_hw->reg, reg); }

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static void owl_gate_disable(struct clk_hw *hw) { struct owl_gate *gate = hw_to_owl_gate(hw); struct owl_clk_common *common = &gate->common; owl_gate_set(common, &gate->gate_hw, false); }

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Manivannan Sadhasivam43100.00%1100.00%
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static int owl_gate_enable(struct clk_hw *hw) { struct owl_gate *gate = hw_to_owl_gate(hw); struct owl_clk_common *common = &gate->common; owl_gate_set(common, &gate->gate_hw, true); return 0; }

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Manivannan Sadhasivam46100.00%1100.00%
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int owl_gate_clk_is_enabled(const struct owl_clk_common *common, const struct owl_gate_hw *gate_hw) { u32 reg; regmap_read(common->regmap, gate_hw->reg, &reg); if (gate_hw->gate_flags & CLK_GATE_SET_TO_DISABLE) reg ^= BIT(gate_hw->bit_idx); return !!(reg & BIT(gate_hw->bit_idx)); }

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Manivannan Sadhasivam65100.00%1100.00%
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static int owl_gate_is_enabled(struct clk_hw *hw) { struct owl_gate *gate = hw_to_owl_gate(hw); struct owl_clk_common *common = &gate->common; return owl_gate_clk_is_enabled(common, &gate->gate_hw); }

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const struct clk_ops owl_gate_ops = { .disable = owl_gate_disable, .enable = owl_gate_enable, .is_enabled = owl_gate_is_enabled, };

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Manivannan Sadhasivam327100.00%1100.00%
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