Convert CONFIG_CLOCK_SYNTHESIZER to Kconfig

This converts the following to Kconfig:
   CONFIG_CLOCK_SYNTHESIZER

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-omap2/am33xx/Kconfig b/arch/arm/mach-omap2/am33xx/Kconfig
index b8e115d..23865d4 100644
--- a/arch/arm/mach-omap2/am33xx/Kconfig
+++ b/arch/arm/mach-omap2/am33xx/Kconfig
@@ -207,6 +207,19 @@
 
 endchoice
 
+config CLOCK_SYNTHESIZER
+	bool "CDCE913 and CDCEL913 clock synthesizer support"
+	help
+	  The CDCE913 and CDCEL913 devices are modular PLL-based, low cost,
+	  high performance , programmable clock synthesizers. They generate
+	  up to 3 output clocks from a single input frequency. Each output can
+	  be programmed for any clock-frequency.
+
+config CLK_SYNTHESIZER_I2C_ADDR
+	hex "Clock synthesizer i2c bus address"
+	depends on CLOCK_SYNTHESIZER
+	default 0x65
+
 endif
 
 if AM43XX
diff --git a/arch/arm/mach-omap2/am33xx/clk_synthesizer.c b/arch/arm/mach-omap2/am33xx/clk_synthesizer.c
index 59f0d8e..c9b9502 100644
--- a/arch/arm/mach-omap2/am33xx/clk_synthesizer.c
+++ b/arch/arm/mach-omap2/am33xx/clk_synthesizer.c
@@ -31,12 +31,12 @@
 
 #if !CONFIG_IS_ENABLED(DM_I2C)
 	/* Send the command byte */
-	rc = i2c_write(CLK_SYNTHESIZER_I2C_ADDR, addr, 1, buf, 1);
+	rc = i2c_write(CONFIG_CLK_SYNTHESIZER_I2C_ADDR, addr, 1, buf, 1);
 	if (rc)
 		printf("Failed to send command to clock synthesizer\n");
 
 	/* Read the Data */
-	return i2c_read(CLK_SYNTHESIZER_I2C_ADDR, addr, 1, buf, 1);
+	return i2c_read(CONFIG_CLK_SYNTHESIZER_I2C_ADDR, addr, 1, buf, 1);
 #else
 	/* Send the command byte */
 	rc = dm_i2c_reg_write(dev, addr, *buf);
@@ -73,7 +73,7 @@
 	cmd[1] = val;
 
 #if !CONFIG_IS_ENABLED(DM_I2C)
-	rc = i2c_write(CLK_SYNTHESIZER_I2C_ADDR, addr, 1, cmd, 2);
+	rc = i2c_write(CONFIG_CLK_SYNTHESIZER_I2C_ADDR, addr, 1, cmd, 2);
 #else
 	rc = dm_i2c_write(dev, addr, cmd, 2);
 #endif
@@ -97,17 +97,17 @@
 	u8 val = 0;
 	struct udevice *dev = NULL;
 #if !CONFIG_IS_ENABLED(DM_I2C)
-	rc =  i2c_probe(CLK_SYNTHESIZER_I2C_ADDR);
+	rc =  i2c_probe(CONFIG_CLK_SYNTHESIZER_I2C_ADDR);
 	if (rc) {
 		printf("i2c probe failed at address 0x%x\n",
-		       CLK_SYNTHESIZER_I2C_ADDR);
+		       CONFIG_CLK_SYNTHESIZER_I2C_ADDR);
 		return rc;
 	}
 #else
-	rc = i2c_get_chip_for_busnum(0, CLK_SYNTHESIZER_I2C_ADDR, 1, &dev);
+	rc = i2c_get_chip_for_busnum(0, CONFIG_CLK_SYNTHESIZER_I2C_ADDR, 1, &dev);
 	if (rc) {
 		printf("failed to get device for synthesizer at address 0x%x\n",
-		       CLK_SYNTHESIZER_I2C_ADDR);
+		       CONFIG_CLK_SYNTHESIZER_I2C_ADDR);
 		return rc;
 	}
 #endif