12 #include <linux/clk-provider.h>
16 #include <linux/delay.h>
34 	if (gate->lock)  in mmp_clk_gate_enable()
35 		spin_lock_irqsave(gate->lock, flags);  in mmp_clk_gate_enable()
37 	tmp = readl(gate->reg);  in mmp_clk_gate_enable()
38 	tmp &= ~gate->mask;  in mmp_clk_gate_enable()
39 	tmp |= gate->val_enable;  in mmp_clk_gate_enable()
40 	writel(tmp, gate->reg);  in mmp_clk_gate_enable()
42 	if (gate->lock)  in mmp_clk_gate_enable()
43 		spin_unlock_irqrestore(gate->lock, flags);  in mmp_clk_gate_enable()
45 	if (gate->flags & MMP_CLK_GATE_NEED_DELAY) {  in mmp_clk_gate_enable()
47 		/* Need delay 2 cycles. */  in mmp_clk_gate_enable()
60 	if (gate->lock)  in mmp_clk_gate_disable()
61 		spin_lock_irqsave(gate->lock, flags);  in mmp_clk_gate_disable()
63 	tmp = readl(gate->reg);  in mmp_clk_gate_disable()
64 	tmp &= ~gate->mask;  in mmp_clk_gate_disable()
65 	tmp |= gate->val_disable;  in mmp_clk_gate_disable()
66 	writel(tmp, gate->reg);  in mmp_clk_gate_disable()
68 	if (gate->lock)  in mmp_clk_gate_disable()
69 		spin_unlock_irqrestore(gate->lock, flags);  in mmp_clk_gate_disable()
78 	if (gate->lock)  in mmp_clk_gate_is_enabled()
79 		spin_lock_irqsave(gate->lock, flags);  in mmp_clk_gate_is_enabled()
81 	tmp = readl(gate->reg);  in mmp_clk_gate_is_enabled()
83 	if (gate->lock)  in mmp_clk_gate_is_enabled()
84 		spin_unlock_irqrestore(gate->lock, flags);  in mmp_clk_gate_is_enabled()
86 	return (tmp & gate->mask) == gate->val_enable;  in mmp_clk_gate_is_enabled()
102 	struct clk_init_data init;  in mmp_clk_register_gate()  local
107 		return ERR_PTR(-ENOMEM);  in mmp_clk_register_gate()
109 	init.name = name;  in mmp_clk_register_gate()
110 	init.ops = &mmp_clk_gate_ops;  in mmp_clk_register_gate()
111 	init.flags = flags;  in mmp_clk_register_gate()
112 	init.parent_names = (parent_name ? &parent_name : NULL);  in mmp_clk_register_gate()
113 	init.num_parents = (parent_name ? 1 : 0);  in mmp_clk_register_gate()
116 	gate->reg = reg;  in mmp_clk_register_gate()
117 	gate->mask = mask;  in mmp_clk_register_gate()
118 	gate->val_enable = val_enable;  in mmp_clk_register_gate()
119 	gate->val_disable = val_disable;  in mmp_clk_register_gate()
120 	gate->flags = gate_flags;  in mmp_clk_register_gate()
121 	gate->lock = lock;  in mmp_clk_register_gate()
122 	gate->hw.init = &init;  in mmp_clk_register_gate()
124 	clk = clk_register(dev, &gate->hw);  in mmp_clk_register_gate()