| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | #ifndef __MACH_SUNXI_CLK_FACTORS_H |
| 3 | #define __MACH_SUNXI_CLK_FACTORS_H |
| 4 | |
| 5 | #include <linux/clk-provider.h> |
| 6 | #include <linux/spinlock.h> |
| 7 | |
| 8 | #define SUNXI_FACTORS_NOT_APPLICABLE (0) |
| 9 | |
| 10 | struct clk_factors_config { |
| 11 | u8 nshift; |
| 12 | u8 nwidth; |
| 13 | u8 kshift; |
| 14 | u8 kwidth; |
| 15 | u8 mshift; |
| 16 | u8 mwidth; |
| 17 | u8 pshift; |
| 18 | u8 pwidth; |
| 19 | u8 n_start; |
| 20 | }; |
| 21 | |
| 22 | struct factors_request { |
| 23 | unsigned long rate; |
| 24 | unsigned long parent_rate; |
| 25 | u8 parent_index; |
| 26 | u8 n; |
| 27 | u8 k; |
| 28 | u8 m; |
| 29 | u8 p; |
| 30 | }; |
| 31 | |
| 32 | struct factors_data { |
| 33 | int enable; |
| 34 | int mux; |
| 35 | int muxmask; |
| 36 | const struct clk_factors_config *table; |
| 37 | void (*getter)(struct factors_request *req); |
| 38 | void (*recalc)(struct factors_request *req); |
| 39 | const char *name; |
| 40 | }; |
| 41 | |
| 42 | struct clk_factors { |
| 43 | struct clk_hw hw; |
| 44 | void __iomem *reg; |
| 45 | const struct clk_factors_config *config; |
| 46 | void (*get_factors)(struct factors_request *req); |
| 47 | void (*recalc)(struct factors_request *req); |
| 48 | spinlock_t *lock; |
| 49 | /* for cleanup */ |
| 50 | struct clk_mux *mux; |
| 51 | struct clk_gate *gate; |
| 52 | }; |
| 53 | |
| 54 | struct clk *sunxi_factors_register(struct device_node *node, |
| 55 | const struct factors_data *data, |
| 56 | spinlock_t *lock, |
| 57 | void __iomem *reg); |
| 58 | struct clk *sunxi_factors_register_critical(struct device_node *node, |
| 59 | const struct factors_data *data, |
| 60 | spinlock_t *lock, |
| 61 | void __iomem *reg); |
| 62 | |
| 63 | void sunxi_factors_unregister(struct device_node *node, struct clk *clk); |
| 64 | |
| 65 | #endif |
| 66 |