21  * DOC: basic gatable clock which can gate and ungate it's ouput
30 static inline u32 clk_gate_readl(struct clk_gate *gate)  in clk_gate_readl()  argument
32 	if (gate->flags & CLK_GATE_BIG_ENDIAN)  in clk_gate_readl()
33 		return ioread32be(gate->reg);  in clk_gate_readl()
35 	return readl(gate->reg);  in clk_gate_readl()
38 static inline void clk_gate_writel(struct clk_gate *gate, u32 val)  in clk_gate_writel()  argument
40 	if (gate->flags & CLK_GATE_BIG_ENDIAN)  in clk_gate_writel()
41 		iowrite32be(val, gate->reg);  in clk_gate_writel()
43 		writel(val, gate->reg);  in clk_gate_writel()
61 	struct clk_gate *gate = to_clk_gate(hw);  in clk_gate_endisable()  local
62 	int set = gate->flags & CLK_GATE_SET_TO_DISABLE ? 1 : 0;  in clk_gate_endisable()
71 	if (gate->lock)  in clk_gate_endisable()
72 		spin_lock_irqsave(gate->lock, flags);  in clk_gate_endisable()
74 		__acquire(gate->lock);  in clk_gate_endisable()
76 	if (gate->flags & CLK_GATE_HIWORD_MASK) {  in clk_gate_endisable()
77 		reg = BIT(gate->bit_idx + 16);  in clk_gate_endisable()
79 			reg |= BIT(gate->bit_idx);  in clk_gate_endisable()
81 		reg = clk_gate_readl(gate);  in clk_gate_endisable()
84 			reg |= BIT(gate->bit_idx);  in clk_gate_endisable()
86 			reg &= ~BIT(gate->bit_idx);  in clk_gate_endisable()
89 	clk_gate_writel(gate, reg);  in clk_gate_endisable()
91 	if (gate->lock)  in clk_gate_endisable()
92 		spin_unlock_irqrestore(gate->lock, flags);  in clk_gate_endisable()
94 		__release(gate->lock);  in clk_gate_endisable()
112 	struct clk_gate *gate = to_clk_gate(hw);  in clk_gate_is_enabled()  local
114 	reg = clk_gate_readl(gate);  in clk_gate_is_enabled()
117 	if (gate->flags & CLK_GATE_SET_TO_DISABLE)  in clk_gate_is_enabled()
118 		reg ^= BIT(gate->bit_idx);  in clk_gate_is_enabled()
120 	reg &= BIT(gate->bit_idx);  in clk_gate_is_enabled()
141 	struct clk_gate *gate;  in __clk_hw_register_gate()  local
148 			pr_err("gate bit exceeds LOWORD field\n");  in __clk_hw_register_gate()
153 	/* allocate the gate */  in __clk_hw_register_gate()
154 	gate = kzalloc(sizeof(*gate), GFP_KERNEL);  in __clk_hw_register_gate()
155 	if (!gate)  in __clk_hw_register_gate()
170 	gate->reg = reg;  in __clk_hw_register_gate()
171 	gate->bit_idx = bit_idx;  in __clk_hw_register_gate()
172 	gate->flags = clk_gate_flags;  in __clk_hw_register_gate()
173 	gate->lock = lock;  in __clk_hw_register_gate()
174 	gate->hw.init = &init;  in __clk_hw_register_gate()
176 	hw = &gate->hw;  in __clk_hw_register_gate()
182 		kfree(gate);  in __clk_hw_register_gate()
208 	struct clk_gate *gate;  in clk_unregister_gate()  local
215 	gate = to_clk_gate(hw);  in clk_unregister_gate()
218 	kfree(gate);  in clk_unregister_gate()
224 	struct clk_gate *gate;  in clk_hw_unregister_gate()  local
226 	gate = to_clk_gate(hw);  in clk_hw_unregister_gate()
229 	kfree(gate);  in clk_hw_unregister_gate()