diff options
Diffstat (limited to 'drivers/clk/spacemit/ccu_ddn.h')
| -rw-r--r-- | drivers/clk/spacemit/ccu_ddn.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/clk/spacemit/ccu_ddn.h b/drivers/clk/spacemit/ccu_ddn.h new file mode 100644 index 000000000000..a52fabe77d62 --- /dev/null +++ b/drivers/clk/spacemit/ccu_ddn.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2024 SpacemiT Technology Co. Ltd + * Copyright (c) 2024-2025 Haylen Chu <heylenay@4d2.org> + */ + +#ifndef _CCU_DDN_H_ +#define _CCU_DDN_H_ + +#include <linux/bitops.h> +#include <linux/clk-provider.h> + +#include "ccu_common.h" + +struct ccu_ddn { + struct ccu_common common; + unsigned int num_mask; + unsigned int num_shift; + unsigned int den_mask; + unsigned int den_shift; +}; + +#define CCU_DDN_INIT(_name, _parent, _flags) \ + CLK_HW_INIT_HW(#_name, &_parent.common.hw, &spacemit_ccu_ddn_ops, _flags) + +#define CCU_DDN_DEFINE(_name, _parent, _reg_ctrl, _num_shift, _num_width, \ + _den_shift, _den_width, _flags) \ +static struct ccu_ddn _name = { \ + .common = { \ + .reg_ctrl = _reg_ctrl, \ + .hw.init = CCU_DDN_INIT(_name, _parent, _flags), \ + }, \ + .num_mask = GENMASK(_num_shift + _num_width - 1, _num_shift), \ + .num_shift = _num_shift, \ + .den_mask = GENMASK(_den_shift + _den_width - 1, _den_shift), \ + .den_shift = _den_shift, \ +} + +static inline struct ccu_ddn *hw_to_ccu_ddn(struct clk_hw *hw) +{ + struct ccu_common *common = hw_to_ccu_common(hw); + + return container_of(common, struct ccu_ddn, common); +} + +extern const struct clk_ops spacemit_ccu_ddn_ops; + +#endif |