clk: mediatek: clk-mtk: Add MUX_DIV_GATE macro

On MT8196, some clocks use one register for parent selection and
gating, and a separate register for frequency division. Since composite
clocks can combine a mux, divider, and gate in a single entity, add a
macro to simplify registration of such clocks by combining parent
selection, frequency scaling, and enable control into one definition.

Reviewed-by: Nícolas F. R. A. Prado <[e-mail]>
Reviewed-by: AngeloGioacchino Del Regno <[e-mail]>
Reviewed-by: Chen-Yu Tsai <[e-mail]>
Signed-off-by: Laura Nao <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>

drivers/clk/mediatek/clk-mtk.h

···
 		.flags = 0,						\
 	}
 
+#define MUX_DIV_GATE(_id, _name, _parents,		\
+		_mux_reg, _mux_shift, _mux_width,	\
+		_div_reg, _div_shift, _div_width,	\
+		_gate_reg, _gate_shift) {		\
+		.id            = _id,			\
+		.name          = _name,			\
+		.parent_names  = _parents,		\
+		.num_parents   = ARRAY_SIZE(_parents),	\
+		.mux_reg       = _mux_reg,		\
+		.mux_shift     = _mux_shift,		\
+		.mux_width     = _mux_width,		\
+		.divider_reg   = _div_reg,		\
+		.divider_shift = _div_shift,		\
+		.divider_width = _div_width,		\
+		.gate_reg      = _gate_reg,		\
+		.gate_shift    = _gate_shift,		\
+		.flags         = CLK_SET_RATE_PARENT,	\
+	}
+
 int mtk_clk_register_composites(struct device *dev,
 				const struct mtk_composite *mcs, int num,
 				void __iomem *base, spinlock_t *lock,