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cpufreq: tegra: create CONFIG_ARM_TEGRA_CPUFREQ

currently Tegra cpufreq driver gets built based on ARCH_TEGRA, which doesn't
depend on nor select CPU_FREQ itself, so:

        select CPU_FREQ_TABLE if CPU_FREQ

... isn't guaranteed to fire.

The correct solution seems to be:

* Add CONFIG_ARM_TEGRA_CPUFREQ to drivers/cpufreq/Kconfig.arm.
* Make that Kconfig option selct CPU_FREQ_TABLE.
* Make that Kconfig option be def_bool ARCH_TEGRA.
* Modify drivers/cpufreq/Makefile to build tegra-cpufreq.c based on that.
* Remove all the cpufreq-related stuff from arch/arm/mach-tegra/Kconfig.

That way, tegra-cpufreq.c can't be built if !CPU_FREQ, and Tegra's
cpufreq works the same way as all the other cpufreq drivers.

This patch does it.

Suggested-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Viresh Kumar 12 years ago
parent
6866cba3a4
commit
dbb8d76e5e
3 changed files with 9 additions and 4 deletions
Split View Show Diff Stats
  1. 0 3
      arch/arm/mach-tegra/Kconfig
  2. 8 0
      drivers/cpufreq/Kconfig.arm
  3. 1 1
      drivers/cpufreq/Makefile

+ 0 - 3
arch/arm/mach-tegra/Kconfig
View File 

@@ -28,7 +28,6 @@ config ARCH_TEGRA_2x_SOC
 
 	select ARM_ERRATA_754327 if SMP
 
 	select ARM_ERRATA_764369 if SMP
 
 	select ARM_GIC
 
-	select CPU_FREQ_TABLE if CPU_FREQ
 
 	select CPU_V7
 
 	select PINCTRL
 
 	select PINCTRL_TEGRA20
 
@@ -46,7 +45,6 @@ config ARCH_TEGRA_3x_SOC
 
 	select ARM_ERRATA_754322
 
 	select ARM_ERRATA_764369 if SMP
 
 	select ARM_GIC
 
-	select CPU_FREQ_TABLE if CPU_FREQ
 
 	select CPU_V7
 
 	select PINCTRL
 
 	select PINCTRL_TEGRA30
 
@@ -63,7 +61,6 @@ config ARCH_TEGRA_114_SOC
 
 	select ARM_ARCH_TIMER
 
 	select ARM_GIC
 
 	select ARM_L1_CACHE_SHIFT_6
 
-	select CPU_FREQ_TABLE if CPU_FREQ
 
 	select CPU_V7
 
 	select PINCTRL
 
 	select PINCTRL_TEGRA114

+ 8 - 0
drivers/cpufreq/Kconfig.arm
View File 

@@ -154,3 +154,11 @@ config ARM_SPEAR_CPUFREQ
 
 	default y
 
 	help
 
 	  This adds the CPUFreq driver support for SPEAr SOCs.
 
+
 
+config ARM_TEGRA_CPUFREQ
 
+	bool "TEGRA CPUFreq support"
 
+	depends on ARCH_TEGRA
 
+	select CPU_FREQ_TABLE
 
+	default y
 
+	help
 
+	  This adds the CPUFreq driver support for TEGRA SOCs.

+ 1 - 1
drivers/cpufreq/Makefile
View File 

@@ -71,7 +71,7 @@ obj-$(CONFIG_ARM_S5PV210_CPUFREQ)	+= s5pv210-cpufreq.o
 
 obj-$(CONFIG_ARM_SA1100_CPUFREQ)	+= sa1100-cpufreq.o
 
 obj-$(CONFIG_ARM_SA1110_CPUFREQ)	+= sa1110-cpufreq.o
 
 obj-$(CONFIG_ARM_SPEAR_CPUFREQ)		+= spear-cpufreq.o
 
-obj-$(CONFIG_ARCH_TEGRA)		+= tegra-cpufreq.o
 
+obj-$(CONFIG_ARM_TEGRA_CPUFREQ)		+= tegra-cpufreq.o
 
 
 ##################################################################################
 
 # PowerPC platform drivers