73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (c) 2016 Maxime Ripard. All rights reserved.
|
|
*/
|
|
|
|
#ifndef _COMMON_H_
|
|
#define _COMMON_H_
|
|
|
|
#include <linux/compiler.h>
|
|
#include <linux/clk-provider.h>
|
|
|
|
#define CCU_FEATURE_FRACTIONAL BIT(0)
|
|
#define CCU_FEATURE_VARIABLE_PREDIV BIT(1)
|
|
#define CCU_FEATURE_FIXED_PREDIV BIT(2)
|
|
#define CCU_FEATURE_FIXED_POSTDIV BIT(3)
|
|
#define CCU_FEATURE_ALL_PREDIV BIT(4)
|
|
#define CCU_FEATURE_LOCK_REG BIT(5)
|
|
#define CCU_FEATURE_MMC_TIMING_SWITCH BIT(6)
|
|
#define CCU_FEATURE_SIGMA_DELTA_MOD BIT(7)
|
|
#define CCU_FEATURE_KEY_FIELD BIT(8)
|
|
|
|
/* MMC timing mode switch bit */
|
|
#define CCU_MMC_NEW_TIMING_MODE BIT(30)
|
|
|
|
struct device_node;
|
|
|
|
struct ccu_common {
|
|
void __iomem *base;
|
|
u16 reg;
|
|
u16 lock_reg;
|
|
u32 prediv;
|
|
|
|
unsigned long features;
|
|
spinlock_t *lock;
|
|
struct clk_hw hw;
|
|
};
|
|
|
|
static inline struct ccu_common *hw_to_ccu_common(struct clk_hw *hw)
|
|
{
|
|
return container_of(hw, struct ccu_common, hw);
|
|
}
|
|
|
|
struct sunxi_ccu_desc {
|
|
struct ccu_common **ccu_clks;
|
|
unsigned long num_ccu_clks;
|
|
|
|
struct clk_hw_onecell_data *hw_clks;
|
|
|
|
struct ccu_reset_map *resets;
|
|
unsigned long num_resets;
|
|
};
|
|
|
|
void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock);
|
|
|
|
struct ccu_pll_nb {
|
|
struct notifier_block clk_nb;
|
|
struct ccu_common *common;
|
|
|
|
u32 enable;
|
|
u32 lock;
|
|
};
|
|
|
|
#define to_ccu_pll_nb(_nb) container_of(_nb, struct ccu_pll_nb, clk_nb)
|
|
|
|
int ccu_pll_notifier_register(struct ccu_pll_nb *pll_nb);
|
|
|
|
int devm_sunxi_ccu_probe(struct device *dev, void __iomem *reg,
|
|
const struct sunxi_ccu_desc *desc);
|
|
void of_sunxi_ccu_probe(struct device_node *node, void __iomem *reg,
|
|
const struct sunxi_ccu_desc *desc);
|
|
|
|
#endif /* _COMMON_H_ */
|