clk: rockchip: optimize static memory consume

Before:
	text    data    bss    dec    hex    filename
	2384    144     0      2528   9e0    drivers/clk/rockchip/clk-pvtm.o
        684     0       0      684    2ac    drivers/clk/rockchip/clk-inverter.o
	1157    0       0      1157   485    drivers/clk/rockchip/clk-dclk-divider.o

After:
	text    data    bss    dec    hex    filename
        0       0       0      0      0      drivers/clk/rockchip/clk-pvtm.o
        0       0       0      0      0      drivers/clk/rockchip/clk-inverter.o
        0       0       0      0      0      drivers/clk/rockchip/clk-dclk-divider.o

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Change-Id: I157205014ed3240d51e1bf445c6163a5da9a7939

drivers/clk/rockchip/Kconfig

@@ -20,6 +20,24 @@ config ROCKCHIP_CLK_BOOST
 	help
 	  Say y here to enable clk boost.
 
+config ROCKCHIP_CLK_INV
+	bool "Rockchip Clk Inverter"
+	default y if !CPU_RV1126
+	help
+	  Say y here to enable clk Inverter.
+
+config ROCKCHIP_CLK_PVTM
+	bool "Rockchip Clk Pvtm"
+	default y if !CPU_RV1126
+	help
+	  Say y here to enable clk pvtm.
+
+config ROCKCHIP_DCLK_DIV
+	bool "Rockchip Dclk Divider"
+	default y if !CPU_RV1126
+	help
+	  Say y here to enable dclk divider.
+
 config ROCKCHIP_DDRCLK_SCPI
 	bool "Rockchip DDR Clk SCPI"
 	default y if RK3368_SCPI_PROTOCOL

drivers/clk/rockchip/Makefile

@@ -7,12 +7,12 @@ obj-y	+= clk.o
 obj-y	+= clk-pll.o
 obj-y	+= clk-cpu.o
 obj-y	+= clk-half-divider.o
-obj-y	+= clk-inverter.o
 obj-y	+= clk-mmc-phase.o
 obj-y	+= clk-muxgrf.o
 obj-y	+= clk-ddr.o
-obj-y	+= clk-pvtm.o
-obj-y	+= clk-dclk-divider.o
+obj-$(CONFIG_ROCKCHIP_CLK_INV)	+= clk-inverter.o
+obj-$(CONFIG_ROCKCHIP_CLK_PVTM)	+= clk-pvtm.o
+obj-$(CONFIG_ROCKCHIP_DCLK_DIV)	+= clk-dclk-divider.o
 obj-$(CONFIG_RESET_CONTROLLER)	+= softrst.o
 
 obj-$(CONFIG_CPU_PX30)		+= clk-px30.o

drivers/clk/rockchip/clk.c

@@ -660,11 +660,13 @@ void __init rockchip_clk_register_branches(
 			);
 			break;
 		case branch_inverter:
+#ifdef CONFIG_ROCKCHIP_CLK_INV
 			clk = rockchip_clk_register_inverter(
 				list->name, list->parent_names,
 				list->num_parents,
 				ctx->reg_base + list->muxdiv_offset,
 				list->div_shift, list->div_flags, &ctx->lock);
+#endif
 			break;
 		case branch_factor:
 			clk = rockchip_clk_register_factor_branch(
@@ -684,6 +686,7 @@ void __init rockchip_clk_register_branches(
 				ctx->reg_base);
 			break;
 		case branch_dclk_divider:
+#ifdef CONFIG_ROCKCHIP_DCLK_DIV
 			clk = rockchip_clk_register_dclk_branch(list->name,
 				list->parent_names, list->num_parents,
 				ctx->reg_base, list->muxdiv_offset, list->mux_shift,
@@ -692,6 +695,7 @@ void __init rockchip_clk_register_branches(
 				list->div_flags, list->div_table,
 				list->gate_offset, list->gate_shift,
 				list->gate_flags, flags, list->max_prate, &ctx->lock);
+#endif
 			break;
 		}