disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/arch/arm/mach-imx/cpuidle-imx6q.c
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@@ -1,9 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (C) 2012 Freescale Semiconductor, Inc.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  */
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 #include <linux/cpuidle.h>
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@@ -17,22 +14,24 @@
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 #include "hardware.h"
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 static int num_idle_cpus = 0;
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-static DEFINE_SPINLOCK(cpuidle_lock);
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+static DEFINE_RAW_SPINLOCK(cpuidle_lock);
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 static int imx6q_enter_wait(struct cpuidle_device *dev,
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 			    struct cpuidle_driver *drv, int index)
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 {
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-	spin_lock(&cpuidle_lock);
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+	raw_spin_lock(&cpuidle_lock);
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 	if (++num_idle_cpus == num_online_cpus())
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 		imx6_set_lpm(WAIT_UNCLOCKED);
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-	spin_unlock(&cpuidle_lock);
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+	raw_spin_unlock(&cpuidle_lock);
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+	rcu_idle_enter();
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 	cpu_do_idle();
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+	rcu_idle_exit();
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-	spin_lock(&cpuidle_lock);
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+	raw_spin_lock(&cpuidle_lock);
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 	if (num_idle_cpus-- == num_online_cpus())
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 		imx6_set_lpm(WAIT_CLOCKED);
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-	spin_unlock(&cpuidle_lock);
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+	raw_spin_unlock(&cpuidle_lock);
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 	return index;
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 }
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@@ -47,7 +46,7 @@
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 		{
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 			.exit_latency = 50,
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 			.target_residency = 75,
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-			.flags = CPUIDLE_FLAG_TIMER_STOP,
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+			.flags = CPUIDLE_FLAG_TIMER_STOP | CPUIDLE_FLAG_RCU_IDLE,
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 			.enter = imx6q_enter_wait,
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 			.name = "WAIT",
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 			.desc = "Clock off",
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@@ -65,13 +64,13 @@
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  */
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 void imx6q_cpuidle_fec_irqs_used(void)
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 {
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-	imx6q_cpuidle_driver.states[1].disabled = true;
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+	cpuidle_driver_state_disabled(&imx6q_cpuidle_driver, 1, true);
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 }
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 EXPORT_SYMBOL_GPL(imx6q_cpuidle_fec_irqs_used);
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 void imx6q_cpuidle_fec_irqs_unused(void)
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 {
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-	imx6q_cpuidle_driver.states[1].disabled = false;
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+	cpuidle_driver_state_disabled(&imx6q_cpuidle_driver, 1, false);
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 }
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 EXPORT_SYMBOL_GPL(imx6q_cpuidle_fec_irqs_unused);
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