1 // SPDX-License-Identifier: GPL-2.0+
8 #include <linux/clk-provider.h>
14 #include "clk-scu.h"
23  * struct clk_lpcg_scu - Description of LPCG clock
46 	struct clk_lpcg_scu *clk = to_clk_lpcg_scu(hw);  in clk_lpcg_scu_enable()  local
52 	reg = readl_relaxed(clk->reg);  in clk_lpcg_scu_enable()
53 	reg &= ~(CLK_GATE_SCU_LPCG_MASK << clk->bit_idx);  in clk_lpcg_scu_enable()
56 	if (clk->hw_gate)  in clk_lpcg_scu_enable()
59 	reg |= val << clk->bit_idx;  in clk_lpcg_scu_enable()
60 	writel(reg, clk->reg);  in clk_lpcg_scu_enable()
69 	struct clk_lpcg_scu *clk = to_clk_lpcg_scu(hw);  in clk_lpcg_scu_disable()  local
75 	reg = readl_relaxed(clk->reg);  in clk_lpcg_scu_disable()
76 	reg &= ~(CLK_GATE_SCU_LPCG_MASK << clk->bit_idx);  in clk_lpcg_scu_disable()
77 	writel(reg, clk->reg);  in clk_lpcg_scu_disable()
91 	struct clk_lpcg_scu *clk;  in __imx_clk_lpcg_scu()  local
96 	clk = kzalloc(sizeof(*clk), GFP_KERNEL);  in __imx_clk_lpcg_scu()
97 	if (!clk)  in __imx_clk_lpcg_scu()
98 		return ERR_PTR(-ENOMEM);  in __imx_clk_lpcg_scu()
100 	clk->reg = reg;  in __imx_clk_lpcg_scu()
101 	clk->bit_idx = bit_idx;  in __imx_clk_lpcg_scu()
102 	clk->hw_gate = hw_gate;  in __imx_clk_lpcg_scu()
110 	clk->hw.init = &init;  in __imx_clk_lpcg_scu()
112 	hw = &clk->hw;  in __imx_clk_lpcg_scu()
115 		kfree(clk);  in __imx_clk_lpcg_scu()
121 		dev_set_drvdata(dev, clk);  in __imx_clk_lpcg_scu()
128 	struct clk_lpcg_scu *clk = to_clk_lpcg_scu(hw);  in imx_clk_lpcg_scu_unregister()  local
130 	clk_hw_unregister(&clk->hw);  in imx_clk_lpcg_scu_unregister()
131 	kfree(clk);  in imx_clk_lpcg_scu_unregister()
136 	struct clk_lpcg_scu *clk = dev_get_drvdata(dev);  in imx_clk_lpcg_scu_suspend()  local
138 	clk->state = readl_relaxed(clk->reg);  in imx_clk_lpcg_scu_suspend()
139 	dev_dbg(dev, "save lpcg state 0x%x\n", clk->state);  in imx_clk_lpcg_scu_suspend()
146 	struct clk_lpcg_scu *clk = dev_get_drvdata(dev);  in imx_clk_lpcg_scu_resume()  local
153 	writel(clk->state, clk->reg);  in imx_clk_lpcg_scu_resume()
154 	writel(clk->state, clk->reg);  in imx_clk_lpcg_scu_resume()
155 	dev_dbg(dev, "restore lpcg state 0x%x\n", clk->state);  in imx_clk_lpcg_scu_resume()