Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* CLPS711X CPU idle driver
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*
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* Copyright (C) 2014 Alexander Shiyan <shc_work@mail.ru>
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*/
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#include <linux/cpuidle.h>
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#include <linux/err.h>
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#include <linux/io.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#define CLPS711X_CPUIDLE_NAME "clps711x-cpuidle"
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static void __iomem *clps711x_halt;
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static int clps711x_cpuidle_halt(struct cpuidle_device *dev,
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struct cpuidle_driver *drv, int index)
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{
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writel(0xaa, clps711x_halt);
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return index;
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}
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static struct cpuidle_driver clps711x_idle_driver = {
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.name = CLPS711X_CPUIDLE_NAME,
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.owner = THIS_MODULE,
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.states[0] = {
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.name = "HALT",
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.desc = "CLPS711X HALT",
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.enter = clps711x_cpuidle_halt,
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.exit_latency = 1,
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},
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.state_count = 1,
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};
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static int __init clps711x_cpuidle_probe(struct platform_device *pdev)
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{
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clps711x_halt = devm_platform_ioremap_resource(pdev, 0);
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if (IS_ERR(clps711x_halt))
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return PTR_ERR(clps711x_halt);
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return cpuidle_register(&clps711x_idle_driver, NULL);
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}
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static struct platform_driver clps711x_cpuidle_driver = {
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.driver = {
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.name = CLPS711X_CPUIDLE_NAME,
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},
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};
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builtin_platform_driver_probe(clps711x_cpuidle_driver, clps711x_cpuidle_probe);
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