ARM: imx: define struct clk_gate2 on our own
The imx clk-gate2 driver implements an i.MX specific gate clock, which has two bits controlling the gate states. While this is a completely separate gate driver from the common clk-gate one, it reuses the common clk_gate structure. Such reusing makes the extending of clk_gate2 clumsy. Let's define struct clk_gate2 on our own to make the driver independent of the common clk-gate one, and ease the clk_gate2 extending at a later time. Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
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@ -27,11 +27,19 @@
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* parent - fixed parent. No clk_set_parent support
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*/
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#define to_clk_gate(_hw) container_of(_hw, struct clk_gate, hw)
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struct clk_gate2 {
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struct clk_hw hw;
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void __iomem *reg;
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u8 bit_idx;
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u8 flags;
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spinlock_t *lock;
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};
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#define to_clk_gate2(_hw) container_of(_hw, struct clk_gate2, hw)
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static int clk_gate2_enable(struct clk_hw *hw)
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{
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struct clk_gate *gate = to_clk_gate(hw);
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struct clk_gate2 *gate = to_clk_gate2(hw);
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u32 reg;
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unsigned long flags = 0;
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@ -50,7 +58,7 @@ static int clk_gate2_enable(struct clk_hw *hw)
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static void clk_gate2_disable(struct clk_hw *hw)
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{
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struct clk_gate *gate = to_clk_gate(hw);
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struct clk_gate2 *gate = to_clk_gate2(hw);
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u32 reg;
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unsigned long flags = 0;
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@ -68,7 +76,7 @@ static void clk_gate2_disable(struct clk_hw *hw)
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static int clk_gate2_is_enabled(struct clk_hw *hw)
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{
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u32 reg;
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struct clk_gate *gate = to_clk_gate(hw);
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struct clk_gate2 *gate = to_clk_gate2(hw);
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reg = readl(gate->reg);
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@ -89,15 +97,15 @@ struct clk *clk_register_gate2(struct device *dev, const char *name,
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void __iomem *reg, u8 bit_idx,
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u8 clk_gate2_flags, spinlock_t *lock)
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{
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struct clk_gate *gate;
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struct clk_gate2 *gate;
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struct clk *clk;
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struct clk_init_data init;
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gate = kzalloc(sizeof(struct clk_gate), GFP_KERNEL);
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gate = kzalloc(sizeof(struct clk_gate2), GFP_KERNEL);
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if (!gate)
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return ERR_PTR(-ENOMEM);
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/* struct clk_gate assignments */
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/* struct clk_gate2 assignments */
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gate->reg = reg;
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gate->bit_idx = bit_idx;
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gate->flags = clk_gate2_flags;
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