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author | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2013-08-30 12:15:04 +0200 |
---|---|---|
committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-09-24 01:42:59 +0200 |
commit | 35baa3369d1c68921b37af64495f63933850ad80 (patch) | |
tree | d32c82d54af1fb81c869550980e6dbc9cef78260 /arch/arm/mach-exynos | |
parent | 00f3e755513748a6a4f2c370742227aabd8af170 (diff) | |
download | linux-35baa3369d1c68921b37af64495f63933850ad80.tar.gz linux-35baa3369d1c68921b37af64495f63933850ad80.tar.bz2 linux-35baa3369d1c68921b37af64495f63933850ad80.zip |
ARM: EXYNOS: convert cpuidle driver to be a platform driver
ARM EXYNOS cpuidle driver is currently not multiplatform support
ready (as it uses device_initcall() for initialization and doesn't
check on what platform it is running). Fix it by converting the
driver to be a platform driver and registering exynos_cpuidle
platform device from exynos[4,5]_dt_machine_init().
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Daniel Lezcano <daniel.lezcano@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.c | 11 | ||||
-rw-r--r-- | arch/arm/mach-exynos/common.h | 1 | ||||
-rw-r--r-- | arch/arm/mach-exynos/cpuidle.c | 14 | ||||
-rw-r--r-- | arch/arm/mach-exynos/mach-exynos4-dt.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-exynos/mach-exynos5-dt.c | 2 |
5 files changed, 28 insertions, 2 deletions
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index ba95e5db2501..c17407b16d7c 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -30,6 +30,7 @@ #include <linux/clk-provider.h> #include <linux/irqchip/arm-gic.h> #include <linux/irqchip/chained_irq.h> +#include <linux/platform_device.h> #include <asm/proc-fns.h> #include <asm/exception.h> @@ -294,6 +295,16 @@ void exynos5_restart(enum reboot_mode mode, const char *cmd) __raw_writel(val, addr); } +static struct platform_device exynos_cpuidle = { + .name = "exynos_cpuidle", + .id = -1, +}; + +void __init exynos_cpuidle_init(void) +{ + platform_device_register(&exynos_cpuidle); +} + 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 8646a141ae46..b2ac1885d381 100644 --- a/arch/arm/mach-exynos/common.h +++ b/arch/arm/mach-exynos/common.h @@ -22,6 +22,7 @@ struct map_desc; 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_init_late(void); void exynos_firmware_init(void); diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c index ac139226d63c..1bde6ad07d93 100644 --- a/arch/arm/mach-exynos/cpuidle.c +++ b/arch/arm/mach-exynos/cpuidle.c @@ -15,6 +15,7 @@ #include <linux/io.h> #include <linux/export.h> #include <linux/time.h> +#include <linux/platform_device.h> #include <asm/proc-fns.h> #include <asm/smp_scu.h> @@ -192,7 +193,7 @@ static void __init exynos5_core_down_clk(void) __raw_writel(tmp, EXYNOS5_PWR_CTRL2); } -static int __init exynos4_init_cpuidle(void) +static int __init exynos_cpuidle_probe(struct platform_device *pdev) { int cpu_id, ret; struct cpuidle_device *device; @@ -226,4 +227,13 @@ static int __init exynos4_init_cpuidle(void) return 0; } -device_initcall(exynos4_init_cpuidle); + +static struct platform_driver exynos_cpuidle_driver = { + .probe = exynos_cpuidle_probe, + .driver = { + .name = "exynos_cpuidle", + .owner = THIS_MODULE, + }, +}; + +module_platform_driver(exynos_cpuidle_driver); diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c index 0099c6c13bba..53a3dc37a730 100644 --- a/arch/arm/mach-exynos/mach-exynos4-dt.c +++ b/arch/arm/mach-exynos/mach-exynos4-dt.c @@ -25,6 +25,8 @@ static void __init exynos4_dt_machine_init(void) { + exynos_cpuidle_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 f874b773ca13..c9f7dd1cdc8f 100644 --- a/arch/arm/mach-exynos/mach-exynos5-dt.c +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c @@ -47,6 +47,8 @@ static void __init exynos5_dt_machine_init(void) } } + exynos_cpuidle_init(); + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); } |