From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753957AbaGUIg6 (ORCPT ); Mon, 21 Jul 2014 04:36:58 -0400 Received: from mailout1.w1.samsung.com ([210.118.77.11]:8760 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753540AbaGUIgi (ORCPT ); Mon, 21 Jul 2014 04:36:38 -0400 X-AuditID: cbfec7f5-b7f626d000004b39-b7-53ccd112c276 From: Krzysztof Kozlowski To: Russell King , Kukjin Kim , "Rafael J. Wysocki" , Daniel Lezcano , Sachin Kamat , Tushar Behera , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: Kyungmin Park , Marek Szyprowski , Bartlomiej Zolnierkiewicz , Tomasz Figa , Krzysztof Kozlowski Subject: [PATCH 2/3] ARM: EXYNOS: Enable cpuidle in WFI on all SoCs Date: Mon, 21 Jul 2014 10:36:10 +0200 Message-id: <1405931771-24100-2-git-send-email-k.kozlowski@samsung.com> X-Mailer: git-send-email 1.9.1 In-reply-to: <1405931771-24100-1-git-send-email-k.kozlowski@samsung.com> References: <1405931771-24100-1-git-send-email-k.kozlowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrALMWRmVeSWpSXmKPExsVy+t/xy7pCF88EG6w9ZW2xccZ6Vot5n2Ut Xr8wtOhdcJXN4mzTG3aLTY+vsVpc3jWHzeJz7xFGixnn9zFZ3L7Ma7H2yF12izOnL7FaXLl0 is1i/YzXLBbtf/eyOfB7tDT3sHncubaHzWPzknqPLVfbWTz6tqxi9Pi8SS6ALYrLJiU1J7Ms tUjfLoEr4+v2k0wFT7kqPp/qYWxgfMbRxcjJISFgInFz0ypmCFtM4sK99WxdjFwcQgJLGSX2 bHzOCuH0MUns23iCCaSKTcBYYvPyJWBVIgJNzBKvlp9mA0kwCzxnlHj6PRzEFhZwlug8d5wF xGYRUJU4tf4IO4jNK+AusfDLKVaIdXISJ49NBrM5BTwkLp//DGYLAdWs+L+LZQIj7wJGhlWM oqmlyQXFSem5RnrFibnFpXnpesn5uZsYIaH6dQfj0mNWhxgFOBiVeHg5XpwKFmJNLCuuzD3E KMHBrCTCeyLjTLAQb0piZVVqUX58UWlOavEhRiYOTqkGRiEzk8zYo7tUNizZezGtakYef0SR UMr0EzsqDsav3HTswY6cv71HjOv+OX3NfLrM9/ExucMJmQw9PMY5zdoT/sZ1cz5S/jrnAPsG xsDJYUn/HTz8f5/VcHi//7lks5DG+fnt9x+u2b97hvK6Repb188V5HnMe/4HX+pSzp9HxDqX l068d/iS7B0lluKMREMt5qLiRACkpGSSMwIAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add cpuidle device for each SoC but set AFTR enter function only on supported ones (for now these are only Exynos4210 and Exynos5250). For other chipsets use only WFI. This actually does not give any special energy-saving benefits but allows to track the idle time of each core. Signed-off-by: Krzysztof Kozlowski --- arch/arm/mach-exynos/exynos.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c index 2a43a1734eca..4109d592f6fc 100644 --- a/arch/arm/mach-exynos/exynos.c +++ b/arch/arm/mach-exynos/exynos.c @@ -171,14 +171,20 @@ static void exynos_restart(enum reboot_mode mode, const char *cmd) static struct platform_device exynos_cpuidle = { .name = "exynos_cpuidle", - .dev.platform_data = exynos_enter_aftr, + /* + * Currently AFTR is not implemented for each SoC. + * Set this to exynos_enter_aftr() only for supported SoCs. + */ + .dev.platform_data = NULL, .id = -1, }; void __init exynos_cpuidle_init(void) { if (soc_is_exynos4210() || soc_is_exynos5250()) - platform_device_register(&exynos_cpuidle); + exynos_cpuidle.dev.platform_data = exynos_enter_aftr; + + platform_device_register(&exynos_cpuidle); } void __init exynos_cpufreq_init(void) -- 1.9.1