Commit 44293edd authored by Chen-Yu Tsai's avatar Chen-Yu Tsai
Browse files

clk: sunxi-ng: div: support power-of-two dividers 



Some clocks (for timers) on the A523 are mux-divider-gate types
with the divider being values of power-of-two.

Add a macro for these types of clocks so that we can use the divider
types instead of the M-P types without an M divider.

Reviewed-by: default avatarJernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20250911174710.3149589-5-wens@kernel.org


Signed-off-by: default avatarChen-Yu Tsai <wens@csie.org>
parent 828dea38

drivers/clk/sunxi-ng/ccu_div.h

+18 −0
Original line number Diff line number Diff line
@@ -274,6 +274,24 @@ struct ccu_div { 
	SUNXI_CCU_M_HWS_WITH_GATE(_struct, _name, _parent, _reg,	\

				  _mshift, _mwidth, 0, _flags)



#define SUNXI_CCU_P_DATA_WITH_MUX_GATE(_struct, _name, _parents, _reg,	\

				       _mshift, _mwidth,		\

				       _muxshift, _muxwidth,		\

				       _gate, _flags)			\

	struct ccu_div _struct = {					\

		.enable	= _gate,					\

		.div	= _SUNXI_CCU_DIV_FLAGS(_mshift, _mwidth,	\

					       CLK_DIVIDER_POWER_OF_TWO), \

		.mux	= _SUNXI_CCU_MUX(_muxshift, _muxwidth),		\

		.common	= {						\

			.reg		= _reg,				\

			.hw.init	= CLK_HW_INIT_PARENTS_DATA(_name, \

								   _parents, \

								   &ccu_div_ops, \

								   _flags), \

		},							\

	}



static inline struct ccu_div *hw_to_ccu_div(struct clk_hw *hw)

{

	struct ccu_common *common = hw_to_ccu_common(hw);