19c92ab61SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 21d80c142SMaxime Ripard /* 31d80c142SMaxime Ripard * Copyright (c) 2016 Maxime Ripard. All rights reserved. 41d80c142SMaxime Ripard */ 51d80c142SMaxime Ripard 61d80c142SMaxime Ripard #ifndef _COMMON_H_ 71d80c142SMaxime Ripard #define _COMMON_H_ 81d80c142SMaxime Ripard 91d80c142SMaxime Ripard #include <linux/compiler.h> 101d80c142SMaxime Ripard #include <linux/clk-provider.h> 111d80c142SMaxime Ripard 121d80c142SMaxime Ripard #define CCU_FEATURE_FRACTIONAL BIT(0) 131d80c142SMaxime Ripard #define CCU_FEATURE_VARIABLE_PREDIV BIT(1) 141d80c142SMaxime Ripard #define CCU_FEATURE_FIXED_PREDIV BIT(2) 151d80c142SMaxime Ripard #define CCU_FEATURE_FIXED_POSTDIV BIT(3) 167c09b858SMaxime Ripard #define CCU_FEATURE_ALL_PREDIV BIT(4) 173de64bf1SChen-Yu Tsai #define CCU_FEATURE_LOCK_REG BIT(5) 18f6f64ed8SChen-Yu Tsai #define CCU_FEATURE_MMC_TIMING_SWITCH BIT(6) 1905d2eaacSChen-Yu Tsai #define CCU_FEATURE_SIGMA_DELTA_MOD BIT(7) 20f6f64ed8SChen-Yu Tsai 21f6f64ed8SChen-Yu Tsai /* MMC timing mode switch bit */ 22f6f64ed8SChen-Yu Tsai #define CCU_MMC_NEW_TIMING_MODE BIT(30) 231d80c142SMaxime Ripard 241d80c142SMaxime Ripard struct device_node; 251d80c142SMaxime Ripard 261d80c142SMaxime Ripard struct ccu_common { 271d80c142SMaxime Ripard void __iomem *base; 281d80c142SMaxime Ripard u16 reg; 293de64bf1SChen-Yu Tsai u16 lock_reg; 307c09b858SMaxime Ripard u32 prediv; 311d80c142SMaxime Ripard 321d80c142SMaxime Ripard unsigned long features; 331d80c142SMaxime Ripard spinlock_t *lock; 341d80c142SMaxime Ripard struct clk_hw hw; 351d80c142SMaxime Ripard }; 361d80c142SMaxime Ripard 371d80c142SMaxime Ripard static inline struct ccu_common *hw_to_ccu_common(struct clk_hw *hw) 381d80c142SMaxime Ripard { 391d80c142SMaxime Ripard return container_of(hw, struct ccu_common, hw); 401d80c142SMaxime Ripard } 411d80c142SMaxime Ripard 421d80c142SMaxime Ripard struct sunxi_ccu_desc { 431d80c142SMaxime Ripard struct ccu_common **ccu_clks; 441d80c142SMaxime Ripard unsigned long num_ccu_clks; 451d80c142SMaxime Ripard 461d80c142SMaxime Ripard struct clk_hw_onecell_data *hw_clks; 471d80c142SMaxime Ripard 481d80c142SMaxime Ripard struct ccu_reset_map *resets; 491d80c142SMaxime Ripard unsigned long num_resets; 501d80c142SMaxime Ripard }; 511d80c142SMaxime Ripard 521d80c142SMaxime Ripard void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock); 531d80c142SMaxime Ripard 5402ae2bc6SChen-Yu Tsai struct ccu_pll_nb { 5502ae2bc6SChen-Yu Tsai struct notifier_block clk_nb; 5602ae2bc6SChen-Yu Tsai struct ccu_common *common; 5702ae2bc6SChen-Yu Tsai 5802ae2bc6SChen-Yu Tsai u32 enable; 5902ae2bc6SChen-Yu Tsai u32 lock; 6002ae2bc6SChen-Yu Tsai }; 6102ae2bc6SChen-Yu Tsai 6202ae2bc6SChen-Yu Tsai #define to_ccu_pll_nb(_nb) container_of(_nb, struct ccu_pll_nb, clk_nb) 6302ae2bc6SChen-Yu Tsai 6402ae2bc6SChen-Yu Tsai int ccu_pll_notifier_register(struct ccu_pll_nb *pll_nb); 6502ae2bc6SChen-Yu Tsai 66*9bec2b9cSSamuel Holland int devm_sunxi_ccu_probe(struct device *dev, void __iomem *reg, 67*9bec2b9cSSamuel Holland const struct sunxi_ccu_desc *desc); 68*9bec2b9cSSamuel Holland void of_sunxi_ccu_probe(struct device_node *node, void __iomem *reg, 691d80c142SMaxime Ripard const struct sunxi_ccu_desc *desc); 701d80c142SMaxime Ripard 711d80c142SMaxime Ripard #endif /* _COMMON_H_ */ 72