06e32c91db
I add a new file(cpufreq.c) for the following reasons. - Registration of platform_device must be unified in SH-Mobile. - We can't create a node of cpufreq drivers into device tree. (Because cpufreq driver is virtual device.) Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
32 lines
674 B
C
32 lines
674 B
C
/*
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* CPUFreq support code for SH-Mobile ARM
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*
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* Copyright (C) 2014 Gaku Inami
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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int __init shmobile_cpufreq_init(void)
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{
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struct device_node *np;
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np = of_cpu_device_node_get(0);
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if (np == NULL) {
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pr_err("failed to find cpu0 node\n");
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return 0;
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}
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if (of_get_property(np, "operating-points", NULL))
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platform_device_register_simple("cpufreq-cpu0", -1, NULL, 0);
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of_node_put(np);
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return 0;
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}
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