cpufreq: exynos: Remove support for Exynos5440

The Exynos5440 is not actively developed, there are no development
boards available and probably there are no real products with it.
Remove wide-tree support for Exynos5440.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/cpufreq/cpufreq-exynos5440.txt

-
-Exynos5440 cpufreq driver
--------------------
-
-Exynos5440 SoC cpufreq driver for CPU frequency scaling.
-
-Required properties:
-- interrupts: Interrupt to know the completion of cpu frequency change.
-- operating-points: Table of frequencies and voltage CPU could be transitioned into,
-	in the decreasing order. Frequency should be in KHz units and voltage
-	should be in microvolts.
-
-Optional properties:
-- clock-latency: Clock monitor latency in microsecond.
-
-All the required listed above must be defined under node cpufreq.
-
-Example:
---------
-	cpufreq@160000 {
-		compatible = "samsung,exynos5440-cpufreq";
-		reg = <0x160000 0x1000>;
-		interrupts = <0 57 0>;
-		operating-points = <
-				1000000 975000
-				800000  925000>;
-		clock-latency = <100000>;
-	};

drivers/cpufreq/Kconfig.arm

@@ -71,20 +71,6 @@ config ARM_BRCMSTB_AVS_CPUFREQ
 
 	  Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
 
-config ARM_EXYNOS5440_CPUFREQ
-	tristate "SAMSUNG EXYNOS5440"
-	depends on SOC_EXYNOS5440
-	depends on HAVE_CLK && OF
-	select PM_OPP
-	default y
-	help
-	  This adds the CPUFreq driver for Samsung EXYNOS5440
-	  SoC. The nature of exynos5440 clock controller is
-	  different than previous exynos controllers so not using
-	  the common exynos framework.
-
-	  If in doubt, say N.
-
 config ARM_HIGHBANK_CPUFREQ
 	tristate "Calxeda Highbank-based"
 	depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR

drivers/cpufreq/Makefile

@@ -56,7 +56,6 @@ obj-$(CONFIG_ARM_ARMADA_37XX_CPUFREQ)	+= armada-37xx-cpufreq.o
 obj-$(CONFIG_ARM_BRCMSTB_AVS_CPUFREQ)	+= brcmstb-avs-cpufreq.o
 obj-$(CONFIG_ACPI_CPPC_CPUFREQ)		+= cppc_cpufreq.o
 obj-$(CONFIG_ARCH_DAVINCI)		+= davinci-cpufreq.o
-obj-$(CONFIG_ARM_EXYNOS5440_CPUFREQ)	+= exynos5440-cpufreq.o
 obj-$(CONFIG_ARM_HIGHBANK_CPUFREQ)	+= highbank-cpufreq.o
 obj-$(CONFIG_ARM_IMX6Q_CPUFREQ)		+= imx6q-cpufreq.o
 obj-$(CONFIG_ARM_KIRKWOOD_CPUFREQ)	+= kirkwood-cpufreq.o