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authorDmitry Torokhov <[email protected]>2020-01-10 14:56:04 -0800
committerDmitry Torokhov <[email protected]>2020-01-10 14:56:04 -0800
commit1bdd3e05a0a3b4a97ea88bc46fef8fb265c8b94c (patch)
tree2244894a9ea0c941a8f32e5f3d196b4ea0eae24b /arch/mips/loongson2ef/common/platform.c
parent643dd7416649bea2e8c61d8fdeeefb409a0ca5eb (diff)
parentc79f46a282390e0f5b306007bf7b11a46d529538 (diff)
Merge tag 'v5.5-rc5' into next
Sync up with mainline to get SPI "delay" API changes.
Diffstat (limited to 'arch/mips/loongson2ef/common/platform.c')
-rw-r--r--arch/mips/loongson2ef/common/platform.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/mips/loongson2ef/common/platform.c b/arch/mips/loongson2ef/common/platform.c
new file mode 100644
index 000000000000..0084820cffaa
--- /dev/null
+++ b/arch/mips/loongson2ef/common/platform.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2009 Lemote Inc.
+ * Author: Wu Zhangjin, [email protected]
+ */
+
+#include <linux/err.h>
+#include <linux/smp.h>
+#include <linux/platform_device.h>
+
+static struct platform_device loongson2_cpufreq_device = {
+ .name = "loongson2_cpufreq",
+ .id = -1,
+};
+
+static int __init loongson2_cpufreq_init(void)
+{
+ struct cpuinfo_mips *c = &current_cpu_data;
+
+ /* Only 2F revision and it's successors support CPUFreq */
+ if ((c->processor_id & PRID_REV_MASK) >= PRID_REV_LOONGSON2F)
+ return platform_device_register(&loongson2_cpufreq_device);
+
+ return -ENODEV;
+}
+
+arch_initcall(loongson2_cpufreq_init);