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authorLukasz Majewski <l.majewski@samsung.com>2013-11-28 13:42:42 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-01-06 14:29:24 +0100
commitd568b6f71df1c8bd2fc2b051cf03f613a65ffad6 (patch)
tree44b3323150625cadba361f21ccf7e6c1e2c4dda6 /arch/arm/mach-exynos
parentcpufreq: Make sure CPU is running on a freq from freq-table (diff)
downloadlinux-dev-d568b6f71df1c8bd2fc2b051cf03f613a65ffad6.tar.xz
linux-dev-d568b6f71df1c8bd2fc2b051cf03f613a65ffad6.zip
cpufreq: exynos: Convert exynos-cpufreq to platform driver
To make the driver multiplatform-friendly, unconditional initialization in an initcall is replaced with a platform driver probed only if respective platform device is registered. Tested at: Exynos4210 (TRATS) and Exynos4412 (TRATS2) Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Sachin Kamat <sachin.kamat@linaro.org> Tested-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'arch/arm/mach-exynos')
-rw-r--r--arch/arm/mach-exynos/common.c5
-rw-r--r--arch/arm/mach-exynos/common.h1
-rw-r--r--arch/arm/mach-exynos/mach-exynos4-dt.c1
-rw-r--r--arch/arm/mach-exynos/mach-exynos5-dt.c1
4 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 61d2906ccefb..151043653a3f 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -303,6 +303,11 @@ void __init exynos_cpuidle_init(void)
platform_device_register(&exynos_cpuidle);
}
+void __init exynos_cpufreq_init(void)
+{
+ platform_device_register_simple("exynos-cpufreq", -1, NULL, 0);
+}
+
void __init exynos_init_late(void)
{
if (of_machine_is_compatible("samsung,exynos5440"))
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index ff9b6a9419b0..3f0333438819 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -22,6 +22,7 @@ void exynos_init_io(void);
void exynos4_restart(enum reboot_mode mode, const char *cmd);
void exynos5_restart(enum reboot_mode mode, const char *cmd);
void exynos_cpuidle_init(void);
+void exynos_cpufreq_init(void);
void exynos_init_late(void);
void exynos_firmware_init(void);
diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
index 4603e6bd424b..d3e54b7644d7 100644
--- a/arch/arm/mach-exynos/mach-exynos4-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos4-dt.c
@@ -22,6 +22,7 @@
static void __init exynos4_dt_machine_init(void)
{
exynos_cpuidle_init();
+ exynos_cpufreq_init();
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index 1fe075a70c1e..602c5d7111d0 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -44,6 +44,7 @@ static void __init exynos5_dt_machine_init(void)
}
exynos_cpuidle_init();
+ exynos_cpufreq_init();
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}