From mboxrd@z Thu Jan 1 00:00:00 1970 From: jszhang@marvell.com (Jisheng Zhang) Date: Wed, 8 Jul 2015 18:13:37 +0800 Subject: [PATCH 4/4] arm: psci: add cpuidle_ops support In-Reply-To: <1436350417-6712-1-git-send-email-jszhang@marvell.com> References: <1436350417-6712-1-git-send-email-jszhang@marvell.com> Message-ID: <1436350417-6712-5-git-send-email-jszhang@marvell.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This patch implements cpuidle_ops using psci. After this patch, we can use cpuidle-arm.c with psci backend for both arm and arm64. Signed-off-by: Jisheng Zhang --- arch/arm/kernel/psci.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm/kernel/psci.c b/arch/arm/kernel/psci.c index 7f6ff02..c5b94f5 100644 --- a/arch/arm/kernel/psci.c +++ b/arch/arm/kernel/psci.c @@ -13,6 +13,7 @@ * Author: Will Deacon */ +#include #include #include #include @@ -21,6 +22,7 @@ #include +#include #include #include @@ -47,6 +49,24 @@ * */ +#ifdef CONFIG_CPU_IDLE +static int psci_cpuidle_suspend(int cpu, unsigned long arg) +{ + return cpu_psci_cpu_suspend(arg); +} + +static int psci_cpuidle_init(struct device_node *node, int cpu) +{ + return cpu_psci_cpu_init_idle(cpu); +} + +static struct cpuidle_ops psci_cpuidle_ops __initdata = { + .suspend = psci_cpuidle_suspend, + .init = psci_cpuidle_init, +}; +CPUIDLE_METHOD_OF_DECLARE(psci_idle, "psci", &psci_cpuidle_ops); +#endif + #ifdef CONFIG_SMP extern void secondary_startup(void); -- 2.1.4