From mboxrd@z Thu Jan 1 00:00:00 1970 From: t.figa@samsung.com (Tomasz Figa) Date: Tue, 24 Jun 2014 15:57:15 +0200 Subject: [PATCH 6/6] ARM: EXYNOS: Register cpuidle device only on Exynos4210 and 5250 In-Reply-To: <1403618235-19353-1-git-send-email-t.figa@samsung.com> References: <1403618235-19353-1-git-send-email-t.figa@samsung.com> Message-ID: <1403618235-19353-7-git-send-email-t.figa@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Currently, the Exynos cpuidle driver works correctly only on Exynos4210 and 5250. Trying to use it with just one CPU online on any other Exynos SoC will lead to system failure, due to unsupported AFTR mode on other SoCs. This patch fixes the problem by registering the driver only on supported SoCs and letting others simply use default WFI mode until support for them is added. Signed-off-by: Tomasz Figa --- arch/arm/mach-exynos/exynos.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c index f38cf7c..176bbf5 100644 --- a/arch/arm/mach-exynos/exynos.c +++ b/arch/arm/mach-exynos/exynos.c @@ -173,10 +173,8 @@ static struct platform_device exynos_cpuidle = { void __init exynos_cpuidle_init(void) { - if (soc_is_exynos5440()) - return; - - platform_device_register(&exynos_cpuidle); + if (soc_is_exynos4210() || soc_is_exynos5250()) + platform_device_register(&exynos_cpuidle); } void __init exynos_cpufreq_init(void) -- 1.9.3