clk/actions/owl-gate.c

1 // SPDX-License-Identifier: GPL-2.0+
5 // Copyright (c) 2014 Actions Semi Inc.
6 // Author: David Liu <liuwei@actions-semi.com>
11 #include <linux/clk-provider.h>
14 #include "owl-gate.h"
19 	int set = gate_hw->gate_flags & CLK_GATE_SET_TO_DISABLE ? 1 : 0;  in owl_gate_set()
24 	regmap_read(common->regmap, gate_hw->reg, &reg);  in owl_gate_set()
27 		reg |= BIT(gate_hw->bit_idx);  in owl_gate_set()
29 		reg &= ~BIT(gate_hw->bit_idx);  in owl_gate_set()
31 	regmap_write(common->regmap, gate_hw->reg, reg);  in owl_gate_set()
34 static void owl_gate_disable(struct clk_hw *hw)  in owl_gate_disable()
37 	struct owl_clk_common *common = &gate->common;  in owl_gate_disable()
39 	owl_gate_set(common, &gate->gate_hw, false);  in owl_gate_disable()
42 static int owl_gate_enable(struct clk_hw *hw)  in owl_gate_enable()
45 	struct owl_clk_common *common = &gate->common;  in owl_gate_enable()
47 	owl_gate_set(common, &gate->gate_hw, true);  in owl_gate_enable()
57 	regmap_read(common->regmap, gate_hw->reg, &reg);  in owl_gate_clk_is_enabled()
59 	if (gate_hw->gate_flags & CLK_GATE_SET_TO_DISABLE)  in owl_gate_clk_is_enabled()
60 		reg ^= BIT(gate_hw->bit_idx);  in owl_gate_clk_is_enabled()
62 	return !!(reg & BIT(gate_hw->bit_idx));  in owl_gate_clk_is_enabled()
65 static int owl_gate_is_enabled(struct clk_hw *hw)  in owl_gate_is_enabled()
68 	struct owl_clk_common *common = &gate->common;  in owl_gate_is_enabled()
70 	return owl_gate_clk_is_enabled(common, &gate->gate_hw);  in owl_gate_is_enabled()