add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/cpufreq/pmac32-cpufreq.c
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@@ -1,16 +1,12 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  *  Copyright (C) 2002 - 2005 Benjamin Herrenschmidt <benh@kernel.crashing.org>
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  *  Copyright (C) 2004        John Steele Scott <toojays@toojays.net>
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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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  * TODO: Need a big cleanup here. Basically, we need to have different
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  * cpufreq_driver structures for the different type of HW instead of the
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  * current mess. We also need to better deal with the detection of the
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  * type of machine.
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- *
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  */
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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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@@ -128,7 +124,7 @@
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 			mtspr(SPRN_HID2, hid2);
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 		}
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 	}
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-#ifdef CONFIG_6xx
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+#ifdef CONFIG_PPC_BOOK3S_32
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 	low_choose_750fx_pll(low_speed);
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 #endif
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 	if (low_speed == 1) {
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@@ -166,7 +162,7 @@
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 	}
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 	/* set frequency */
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-#ifdef CONFIG_6xx
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+#ifdef CONFIG_PPC_BOOK3S_32
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 	low_choose_7447a_dfs(low_speed);
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 #endif
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 	udelay(100);
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@@ -376,7 +372,8 @@
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 static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy)
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 {
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-	return cpufreq_generic_init(policy, pmac_cpu_freqs, transition_latency);
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+	cpufreq_generic_init(policy, pmac_cpu_freqs, transition_latency);
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+	return 0;
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 }
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 static u32 read_gpio(struct device_node *np)
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@@ -474,6 +471,10 @@
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 	if (slew_done_gpio_np)
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 		slew_done_gpio = read_gpio(slew_done_gpio_np);
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+	of_node_put(volt_gpio_np);
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+	of_node_put(freq_gpio_np);
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+	of_node_put(slew_done_gpio_np);
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+
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 	/* If we use the frequency GPIOs, calculate the min/max speeds based
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 	 * on the bus frequencies
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 	 */