修改内核路径

hc

2024-05-14 bedbef8ad3e75a304af6361af235302bcc61d06b

 kernel/drivers/clocksource/arm_global_timer.c
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@@ -1,13 +1,10 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * drivers/clocksource/arm_global_timer.c
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  *
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  * Copyright (C) 2013 STMicroelectronics (R&D) Limited.
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  * Author: Stuart Menefy <stuart.menefy@st.com>
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  * Author: Srinivas Kandagatla <srinivas.kandagatla@st.com>
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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/init.h>
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@@ -49,7 +46,6 @@
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  * the units for all operations.
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  */
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 static void __iomem *gt_base;
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-static struct clk *gt_clk;
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 static unsigned long gt_clk_rate;
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 static int gt_ppi;
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 static struct clock_event_device __percpu *gt_evt;
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@@ -137,97 +133,6 @@
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 	gt_compare_set(evt, 0);
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 	return 0;
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 }
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-
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-#ifdef CONFIG_COMMON_CLK
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-
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-/*
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- * Updates clockevent frequency when the cpu frequency changes.
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- * Called on the cpu that is changing frequency with interrupts disabled.
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- */
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-static void gt_update_frequency(void *new_rate)
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-{
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-	gt_clk_rate = *((unsigned long *) new_rate);
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-
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-	clockevents_update_freq(raw_cpu_ptr(gt_evt), gt_clk_rate);
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-}
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-
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-static int gt_rate_change(struct notifier_block *nb,
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-	unsigned long flags, void *data)
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-{
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-	struct clk_notifier_data *cnd = data;
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-
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-	/*
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-	 * The gt clock events must be reprogrammed to account for the new
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-	 * frequency.  The timer is local to a cpu, so cross-call to the
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-	 * changing cpu.
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-	 */
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-	if (flags == POST_RATE_CHANGE)
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-		on_each_cpu(gt_update_frequency,
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-				  (void *)&cnd->new_rate, 1);
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-
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-	return NOTIFY_OK;
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-}
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-
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-static struct notifier_block gt_clk_nb = {
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-	.notifier_call = gt_rate_change,
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-};
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-
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-static int gt_clk_init(void)
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-{
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-	if (gt_evt && raw_cpu_ptr(gt_evt) && !IS_ERR(gt_clk))
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-		return clk_notifier_register(gt_clk, &gt_clk_nb);
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-
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-	return 0;
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-}
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-core_initcall(gt_clk_init);
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-
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-#elif defined (CONFIG_CPU_FREQ)
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-
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-#include <linux/cpufreq.h>
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-
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-/*
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- * Updates clockevent frequency when the cpu frequency changes.
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- * Called on the cpu that is changing frequency with interrupts disabled.
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- */
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-static void gt_update_frequency(void *data)
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-{
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-	gt_clk_rate = clk_get_rate(gt_clk);
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-
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-	clockevents_update_freq(raw_cpu_ptr(gt_evt), gt_clk_rate);
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-}
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-
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-static int gt_cpufreq_transition(struct notifier_block *nb,
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-	unsigned long state, void *data)
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-{
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-	struct cpufreq_freqs *freqs = data;
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-
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-	/*
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-	 * The gt clock events must be reprogrammed to account for the new
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-	 * frequency.  The timer is local to a cpu, so cross-call to the
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-	 * changing cpu.
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-	 */
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-	if (state == CPUFREQ_POSTCHANGE)
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-		smp_call_function_single(freqs->cpu, gt_update_frequency,
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-			NULL, 1);
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-
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-	return NOTIFY_OK;
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-}
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-
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-static struct notifier_block gt_cpufreq_nb = {
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-	.notifier_call = gt_cpufreq_transition,
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-};
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-
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-static int gt_cpufreq_init(void)
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-{
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-	if (gt_evt && raw_cpu_ptr(gt_evt) && !IS_ERR(gt_clk))
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-		return cpufreq_register_notifier(&gt_cpufreq_nb,
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-			CPUFREQ_TRANSITION_NOTIFIER);
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-
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-	return 0;
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-}
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-core_initcall(gt_cpufreq_init);
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-
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-#endif
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 static irqreturn_t gt_clockevent_interrupt(int irq, void *dev_id)
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 {
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@@ -349,6 +254,7 @@
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 static int __init global_timer_of_register(struct device_node *np)
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 {
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+	struct clk *gt_clk;
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 	int err = 0;
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 	/*