diff options
Diffstat (limited to 'drivers/clk/sunxi/clk-factors.h')
| -rw-r--r-- | drivers/clk/sunxi/clk-factors.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/clk/sunxi/clk-factors.h b/drivers/clk/sunxi/clk-factors.h new file mode 100644 index 0000000000..7ad2ca924d --- /dev/null +++ b/drivers/clk/sunxi/clk-factors.h @@ -0,0 +1,65 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __MACH_SUNXI_CLK_FACTORS_H +#define __MACH_SUNXI_CLK_FACTORS_H + +#include <linux/clk-provider.h> +#include <linux/spinlock.h> + +#define SUNXI_FACTORS_NOT_APPLICABLE (0) + +struct clk_factors_config { + u8 nshift; + u8 nwidth; + u8 kshift; + u8 kwidth; + u8 mshift; + u8 mwidth; + u8 pshift; + u8 pwidth; + u8 n_start; +}; + +struct factors_request { + unsigned long rate; + unsigned long parent_rate; + u8 parent_index; + u8 n; + u8 k; + u8 m; + u8 p; +}; + +struct factors_data { + int enable; + int mux; + int muxmask; + const struct clk_factors_config *table; + void (*getter)(struct factors_request *req); + void (*recalc)(struct factors_request *req); + const char *name; +}; + +struct clk_factors { + struct clk_hw hw; + void __iomem *reg; + const struct clk_factors_config *config; + void (*get_factors)(struct factors_request *req); + void (*recalc)(struct factors_request *req); + spinlock_t *lock; + /* for cleanup */ + struct clk_mux *mux; + struct clk_gate *gate; +}; + +struct clk *sunxi_factors_register(struct device_node *node, + const struct factors_data *data, + spinlock_t *lock, + void __iomem *reg); +struct clk *sunxi_factors_register_critical(struct device_node *node, + const struct factors_data *data, + spinlock_t *lock, + void __iomem *reg); + +void sunxi_factors_unregister(struct device_node *node, struct clk *clk); + +#endif |