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ARM: EXYNOS: Fix build breakage cpuidle on !SMP

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The Exynos cpuidle driver has coupled cpuidle built-in so it cannot be
built without SMP:

arch/arm/mach-exynos/pm.c: In function 'exynos_cpu0_enter_aftr':
arch/arm/mach-exynos/pm.c:246:4: error: implicit declaration of function 'arch_send_wakeup_ipi_mask' [-Werror=implicit-function-declaration]
arch/arm/mach-exynos/built-in.o: In function 'exynos_pre_enter_aftr':
../arch/arm/mach-exynos/pm.c:300: undefined reference to 'cpu_boot_reg_base'
arch/arm/mach-exynos/built-in.o: In function 'exynos_cpu1_powerdown':
../arch/arm/mach-exynos/pm.c:282: undefined reference to 'exynos_cpu_power_down'

Fix it by adding missing checks for SMP.

Reported-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2015-03-18 03:26:11 +09:00 committed by Kukjin Kim
parent 435c345448
commit cfdda3535f
3 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-exynos/exynos.c
View File

@ -211,7 +211,7 @@ static void __init exynos_dt_machine_init(void)
if (!IS_ENABLED(CONFIG_SMP))
exynos_sysram_init();
#ifdef CONFIG_ARM_EXYNOS_CPUIDLE
#if defined(CONFIG_SMP) && defined(CONFIG_ARM_EXYNOS_CPUIDLE)
if (of_machine_is_compatible("samsung,exynos4210"))
exynos_cpuidle.dev.platform_data = &cpuidle_coupled_exynos_data;
#endif

2
arch/arm/mach-exynos/pm.c
View File

@ -181,6 +181,7 @@ void exynos_enter_aftr(void)
cpu_pm_exit();
}
#if defined(CONFIG_SMP) && defined(CONFIG_ARM_EXYNOS_CPUIDLE)
static atomic_t cpu1_wakeup = ATOMIC_INIT(0);
static int exynos_cpu0_enter_aftr(void)
@ -302,3 +303,4 @@ struct cpuidle_exynos_data cpuidle_coupled_exynos_data = {
.pre_enter_aftr = exynos_pre_enter_aftr,
.post_enter_aftr = exynos_post_enter_aftr,
};
#endif /* CONFIG_SMP && CONFIG_ARM_EXYNOS_CPUIDLE */

3
drivers/cpuidle/cpuidle-exynos.c
View File

@ -117,7 +117,8 @@ static int exynos_cpuidle_probe(struct platform_device *pdev)
{
int ret;
if (of_machine_is_compatible("samsung,exynos4210")) {
if (IS_ENABLED(CONFIG_SMP) &&
of_machine_is_compatible("samsung,exynos4210")) {
exynos_cpuidle_pdata = pdev->dev.platform_data;
ret = cpuidle_register(&exynos_coupled_idle_driver,