Thread (17 messages) 17 messages, 4 authors, 2025-09-13

Re: [PATCH v2 4/7] clk: sunxi-ng: div: support power-of-two dividers

From: Jernej Škrabec <jernej.skrabec@gmail.com>
Date: 2025-09-11 18:08:59
Also in: linux-clk, linux-devicetree, linux-sunxi, lkml

Dne četrtek, 11. september 2025 ob 19:47:07 Srednjeevropski poletni čas je Chen-Yu Tsai napisal(a):
From: Chen-Yu Tsai <redacted>

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.

Signed-off-by: Chen-Yu Tsai <redacted>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>

Best regards,
Jernej
quoted hunk ↗ jump to hunk
---
 drivers/clk/sunxi-ng/ccu_div.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
diff --git a/drivers/clk/sunxi-ng/ccu_div.h b/drivers/clk/sunxi-ng/ccu_div.h
index 90d49ee8e0cc..be00b3277e97 100644
--- a/drivers/clk/sunxi-ng/ccu_div.h
+++ b/drivers/clk/sunxi-ng/ccu_div.h
@@ -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);



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