1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2016 Maxime Ripard. All rights reserved.
9 #include <linux/compiler.h>
10 #include <linux/clk-provider.h>
12 #define CCU_FEATURE_FRACTIONAL BIT(0)
13 #define CCU_FEATURE_VARIABLE_PREDIV BIT(1)
14 #define CCU_FEATURE_FIXED_PREDIV BIT(2)
15 #define CCU_FEATURE_FIXED_POSTDIV BIT(3)
16 #define CCU_FEATURE_ALL_PREDIV BIT(4)
17 #define CCU_FEATURE_LOCK_REG BIT(5)
18 #define CCU_FEATURE_MMC_TIMING_SWITCH BIT(6)
19 #define CCU_FEATURE_SIGMA_DELTA_MOD BIT(7)
20 #define CCU_FEATURE_KEY_FIELD BIT(8)
21 #define CCU_FEATURE_CLOSEST_RATE BIT(9)
23 /* MMC timing mode switch bit */
24 #define CCU_MMC_NEW_TIMING_MODE BIT(30)
34 unsigned long features;
39 static inline struct ccu_common *hw_to_ccu_common(struct clk_hw *hw)
41 return container_of(hw, struct ccu_common, hw);
44 struct sunxi_ccu_desc {
45 struct ccu_common **ccu_clks;
46 unsigned long num_ccu_clks;
48 struct clk_hw_onecell_data *hw_clks;
50 struct ccu_reset_map *resets;
51 unsigned long num_resets;
54 void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock);
56 bool ccu_is_better_rate(struct ccu_common *common,
57 unsigned long target_rate,
58 unsigned long current_rate,
59 unsigned long best_rate);
62 struct notifier_block clk_nb;
63 struct ccu_common *common;
69 #define to_ccu_pll_nb(_nb) container_of(_nb, struct ccu_pll_nb, clk_nb)
71 int ccu_pll_notifier_register(struct ccu_pll_nb *pll_nb);
73 int devm_sunxi_ccu_probe(struct device *dev, void __iomem *reg,
74 const struct sunxi_ccu_desc *desc);
75 void of_sunxi_ccu_probe(struct device_node *node, void __iomem *reg,
76 const struct sunxi_ccu_desc *desc);
78 #endif /* _COMMON_H_ */