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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/sh/kernel/cpu/clock.c
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/sh/kernel/cpu/clock.c')
-rw-r--r--arch/sh/kernel/cpu/clock.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c
new file mode 100644
index 000000000..fca9b1e78
--- /dev/null
+++ b/arch/sh/kernel/cpu/clock.c
@@ -0,0 +1,55 @@
+/*
+ * arch/sh/kernel/cpu/clock.c - SuperH clock framework
+ *
+ * Copyright (C) 2005 - 2009 Paul Mundt
+ *
+ * This clock framework is derived from the OMAP version by:
+ *
+ * Copyright (C) 2004 - 2008 Nokia Corporation
+ * Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
+ *
+ * Modified for omap shared clock framework by Tony Lindgren <tony@atomide.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <asm/clock.h>
+#include <asm/machvec.h>
+
+int __init clk_init(void)
+{
+ int ret;
+
+#ifndef CONFIG_COMMON_CLK
+ ret = arch_clk_init();
+ if (unlikely(ret)) {
+ pr_err("%s: CPU clock registration failed.\n", __func__);
+ return ret;
+ }
+#endif
+
+ if (sh_mv.mv_clk_init) {
+ ret = sh_mv.mv_clk_init();
+ if (unlikely(ret)) {
+ pr_err("%s: machvec clock initialization failed.\n",
+ __func__);
+ return ret;
+ }
+ }
+
+#ifndef CONFIG_COMMON_CLK
+ /* Kick the child clocks.. */
+ recalculate_root_clocks();
+
+ /* Enable the necessary init clocks */
+ clk_enable_init_clocks();
+#endif
+
+ return ret;
+}
+
+