clk: rockchip: add a COMPOSITE_DIV_OFFSET clock-type

The div offset of some clocks are different from their mux offset
and the COMPOSITE clock-type require that div and mux offset are
the same, so add a new COMPOSITE_DIV_OFFSET clock-type to handle that.

Change-Id: I7d541e29328f37d2ad806b3b6e5ab35b5513b345
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>

Author: finley1226

drivers/clk/rockchip/clk.c

@@ -45,7 +45,7 @@
 static struct clk *rockchip_clk_register_branch(const char *name,
 		const char *const *parent_names, u8 num_parents, void __iomem *base,
 		int muxdiv_offset, u8 mux_shift, u8 mux_width, u8 mux_flags,
-		u8 div_shift, u8 div_width, u8 div_flags,
+		int div_offset, u8 div_shift, u8 div_width, u8 div_flags,
 		struct clk_div_table *div_table, int gate_offset,
 		u8 gate_shift, u8 gate_flags, unsigned long flags,
 		spinlock_t *lock)
@@ -89,7 +89,10 @@ static struct clk *rockchip_clk_register_branch(const char *name,
 			goto err_div;
 
 		div->flags = div_flags;
-		div->reg = base + muxdiv_offset;
+		if (div_offset)
+			div->reg = base + div_offset;
+		else
+			div->reg = base + muxdiv_offset;
 		div->shift = div_shift;
 		div->width = div_width;
 		div->lock = lock;
@@ -538,7 +541,7 @@ void __init rockchip_clk_register_branches(
 				list->parent_names, list->num_parents,
 				ctx->reg_base, list->muxdiv_offset, list->mux_shift,
 				list->mux_width, list->mux_flags,
-				list->div_shift, list->div_width,
+				list->div_offset, list->div_shift, list->div_width,
 				list->div_flags, list->div_table,
 				list->gate_offset, list->gate_shift,
 				list->gate_flags, flags, &ctx->lock);

drivers/clk/rockchip/clk.h

@@ -440,6 +440,7 @@ struct rockchip_clk_branch {
 	u8				mux_shift;
 	u8				mux_width;
 	u8				mux_flags;
+	int				div_offset;
 	u8				div_shift;
 	u8				div_width;
 	u8				div_flags;
@@ -472,6 +473,28 @@ struct rockchip_clk_branch {
 		.gate_flags	= gf,				\
 	}
 
+#define COMPOSITE_DIV_OFFSET(_id, cname, pnames, f, mo, ms, mw,	\
+			     mf, do, ds, dw, df, go, gs, gf)	\
+	{							\
+		.id		= _id,				\
+		.branch_type	= branch_composite,		\
+		.name		= cname,			\
+		.parent_names	= pnames,			\
+		.num_parents	= ARRAY_SIZE(pnames),		\
+		.flags		= f,				\
+		.muxdiv_offset	= mo,				\
+		.mux_shift	= ms,				\
+		.mux_width	= mw,				\
+		.mux_flags	= mf,				\
+		.div_offset	= do,				\
+		.div_shift	= ds,				\
+		.div_width	= dw,				\
+		.div_flags	= df,				\
+		.gate_offset	= go,				\
+		.gate_shift	= gs,				\
+		.gate_flags	= gf,				\
+	}
+
 #define COMPOSITE_NOMUX(_id, cname, pname, f, mo, ds, dw, df,	\
 			go, gs, gf)				\
 	{							\