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linux/arch/arm/mach-tegra/cpuidle.h

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 228 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528171438.107155473@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-29 01:10:04 +08:00
/* SPDX-License-Identifier: GPL-2.0-only */
ARM: tegra: cpuidle: separate cpuidle driver for different chips The different Tegra chips may have different CPU idle states and data. Individual CPU idle driver make it more easy to maintain. Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-10-31 17:41:15 +08:00
/*
* Copyright (c) 2012, NVIDIA Corporation. All rights reserved.
*/
#ifndef __MACH_TEGRA_CPUIDLE_H
#define __MACH_TEGRA_CPUIDLE_H
ARM: tegra: cpuidle: using IS_ENABLED for multi SoCs management in init func Clean up the Tegra CPUidle init function by using IS_ENABLED for multi SoCs management in the init function. Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-06-04 18:47:34 +08:00
#ifdef CONFIG_CPU_IDLE
ARM: tegra: cpuidle: separate cpuidle driver for different chips The different Tegra chips may have different CPU idle states and data. Individual CPU idle driver make it more easy to maintain. Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-10-31 17:41:15 +08:00
int tegra20_cpuidle_init(void);
ARM: tegra: disable LP2 cpuidle state if PCIe is enabled Tegra20 HW appears to have a bug such that PCIe device interrupts, whether they are legacy IRQs or MSI, are lost when LP2 is enabled. To work around this, simply disable LP2 if any PCIe devices with interrupts are present. Detect this via the IRQ domain map operation. This is slightly over-conservative; if a device with an interrupt is present but the driver does not actually use them, LP2 will still be disabled. However, this is a reasonable trade-off which enables a simpler workaround. Signed-off-by: Stephen Warren <swarren@nvidia.com> Tested-by: Thierry Reding <treding@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com>
2013-05-07 04:19:19 +08:00
void tegra20_cpuidle_pcie_irqs_in_use(void);
ARM: tegra: cpuidle: separate cpuidle driver for different chips The different Tegra chips may have different CPU idle states and data. Individual CPU idle driver make it more easy to maintain. Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-10-31 17:41:15 +08:00
int tegra30_cpuidle_init(void);
ARM: tegra: add Tegra114 ARM_CPUIDLE_WFI_STATE support Adding the generic ARM_CPUIDLE_WFI_STATE support for Tegra114. Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-01-21 17:49:06 +08:00
int tegra114_cpuidle_init(void);
ARM: tegra: cpuidle: move the init function behind the suspend init function One of the state of CPUidle on Tegra can power gate the CPU and the vdd_cpu rail. But it depends on some configurations from DT and a common hook function for different Tegra SoCs to power gate the CPU rail. And these stuffs are initialized after common Tegra suspend init function. So we move the CPUidle init behind the suspend init function. And making the CPUidle driver more generic. Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-06-04 18:47:32 +08:00
void tegra_cpuidle_init(void);
ARM: tegra: cpuidle: Add missing cpuidle.h include Some of the functions implemented are flagged as not having a prototype defined when building with W=1. Include the header to avoid these build warnings and add a prototype as well as a dummy implementation for the tegra_cpuidle_pcie_irqs_in_use() function. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-28 20:52:45 +08:00
void tegra_cpuidle_pcie_irqs_in_use(void);
ARM: tegra: cpuidle: move the init function behind the suspend init function One of the state of CPUidle on Tegra can power gate the CPU and the vdd_cpu rail. But it depends on some configurations from DT and a common hook function for different Tegra SoCs to power gate the CPU rail. And these stuffs are initialized after common Tegra suspend init function. So we move the CPUidle init behind the suspend init function. And making the CPUidle driver more generic. Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-06-04 18:47:32 +08:00
#else
static inline void tegra_cpuidle_init(void) {}
ARM: tegra: cpuidle: Add missing cpuidle.h include Some of the functions implemented are flagged as not having a prototype defined when building with W=1. Include the header to avoid these build warnings and add a prototype as well as a dummy implementation for the tegra_cpuidle_pcie_irqs_in_use() function. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-28 20:52:45 +08:00
static inline void tegra_cpuidle_pcie_irqs_in_use(void) {}
ARM: tegra: cpuidle: move the init function behind the suspend init function One of the state of CPUidle on Tegra can power gate the CPU and the vdd_cpu rail. But it depends on some configurations from DT and a common hook function for different Tegra SoCs to power gate the CPU rail. And these stuffs are initialized after common Tegra suspend init function. So we move the CPUidle init behind the suspend init function. And making the CPUidle driver more generic. Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-06-04 18:47:32 +08:00
#endif
ARM: tegra: cpuidle: separate cpuidle driver for different chips The different Tegra chips may have different CPU idle states and data. Individual CPU idle driver make it more easy to maintain. Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-10-31 17:41:15 +08:00
#endif