18  * DOC: basic gatable clock which can gate and ungate its output
27 static inline u32 clk_gate_readl(struct clk_gate *gate)  in clk_gate_readl()  argument
29 	if (gate->flags & CLK_GATE_BIG_ENDIAN)  in clk_gate_readl()
30 		return ioread32be(gate->reg);  in clk_gate_readl()
32 	return readl(gate->reg);  in clk_gate_readl()
35 static inline void clk_gate_writel(struct clk_gate *gate, u32 val)  in clk_gate_writel()  argument
37 	if (gate->flags & CLK_GATE_BIG_ENDIAN)  in clk_gate_writel()
38 		iowrite32be(val, gate->reg);  in clk_gate_writel()
40 		writel(val, gate->reg);  in clk_gate_writel()
58 	struct clk_gate *gate = to_clk_gate(hw);  in clk_gate_endisable()  local
59 	int set = gate->flags & CLK_GATE_SET_TO_DISABLE ? 1 : 0;  in clk_gate_endisable()
65 	if (gate->lock)  in clk_gate_endisable()
66 		spin_lock_irqsave(gate->lock, flags);  in clk_gate_endisable()
68 		__acquire(gate->lock);  in clk_gate_endisable()
70 	if (gate->flags & CLK_GATE_HIWORD_MASK) {  in clk_gate_endisable()
71 		reg = BIT(gate->bit_idx + 16);  in clk_gate_endisable()
73 			reg |= BIT(gate->bit_idx);  in clk_gate_endisable()
75 		reg = clk_gate_readl(gate);  in clk_gate_endisable()
78 			reg |= BIT(gate->bit_idx);  in clk_gate_endisable()
80 			reg &= ~BIT(gate->bit_idx);  in clk_gate_endisable()
83 	clk_gate_writel(gate, reg);  in clk_gate_endisable()
85 	if (gate->lock)  in clk_gate_endisable()
86 		spin_unlock_irqrestore(gate->lock, flags);  in clk_gate_endisable()
88 		__release(gate->lock);  in clk_gate_endisable()
106 	struct clk_gate *gate = to_clk_gate(hw);  in clk_gate_is_enabled()  local
108 	reg = clk_gate_readl(gate);  in clk_gate_is_enabled()
111 	if (gate->flags & CLK_GATE_SET_TO_DISABLE)  in clk_gate_is_enabled()
112 		reg ^= BIT(gate->bit_idx);  in clk_gate_is_enabled()
114 	reg &= BIT(gate->bit_idx);  in clk_gate_is_enabled()
135 	struct clk_gate *gate;  in __clk_hw_register_gate()  local
142 			pr_err("gate bit exceeds LOWORD field\n");  in __clk_hw_register_gate()
147 	/* allocate the gate */  in __clk_hw_register_gate()
148 	gate = kzalloc(sizeof(*gate), GFP_KERNEL);  in __clk_hw_register_gate()
149 	if (!gate)  in __clk_hw_register_gate()
164 	gate->reg = reg;  in __clk_hw_register_gate()
165 	gate->bit_idx = bit_idx;  in __clk_hw_register_gate()
166 	gate->flags = clk_gate_flags;  in __clk_hw_register_gate()
167 	gate->lock = lock;  in __clk_hw_register_gate()
168 	gate->hw.init = &init;  in __clk_hw_register_gate()
170 	hw = &gate->hw;  in __clk_hw_register_gate()
176 		kfree(gate);  in __clk_hw_register_gate()
202 	struct clk_gate *gate;  in clk_unregister_gate()  local
209 	gate = to_clk_gate(hw);  in clk_unregister_gate()
212 	kfree(gate);  in clk_unregister_gate()
218 	struct clk_gate *gate;  in clk_hw_unregister_gate()  local
220 	gate = to_clk_gate(hw);  in clk_hw_unregister_gate()
223 	kfree(gate);  in clk_hw_unregister_gate()