summaryrefslogtreecommitdiffstats
path: root/kernel/arch/mips/jz4740/clock.h
diff options
context:
space:
mode:
authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/mips/jz4740/clock.h
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/mips/jz4740/clock.h')
-rw-r--r--kernel/arch/mips/jz4740/clock.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/kernel/arch/mips/jz4740/clock.h b/kernel/arch/mips/jz4740/clock.h
new file mode 100644
index 000000000..5d07499d7
--- /dev/null
+++ b/kernel/arch/mips/jz4740/clock.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
+ * JZ4740 SoC clock support
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#ifndef __MIPS_JZ4740_CLOCK_H__
+#define __MIPS_JZ4740_CLOCK_H__
+
+#include <linux/list.h>
+
+struct jz4740_clock_board_data {
+ unsigned long ext_rate;
+ unsigned long rtc_rate;
+};
+
+extern struct jz4740_clock_board_data jz4740_clock_bdata;
+
+void jz4740_clock_suspend(void);
+void jz4740_clock_resume(void);
+
+struct clk;
+
+struct clk_ops {
+ unsigned long (*get_rate)(struct clk *clk);
+ unsigned long (*round_rate)(struct clk *clk, unsigned long rate);
+ int (*set_rate)(struct clk *clk, unsigned long rate);
+ int (*enable)(struct clk *clk);
+ int (*disable)(struct clk *clk);
+ int (*is_enabled)(struct clk *clk);
+
+ int (*set_parent)(struct clk *clk, struct clk *parent);
+
+};
+
+struct clk {
+ const char *name;
+ struct clk *parent;
+
+ uint32_t gate_bit;
+
+ const struct clk_ops *ops;
+
+ struct list_head list;
+
+#ifdef CONFIG_DEBUG_FS
+ struct dentry *debugfs_entry;
+ struct dentry *debugfs_parent_entry;
+#endif
+
+};
+
+#define JZ4740_CLK_NOT_GATED ((uint32_t)-1)
+
+int clk_is_enabled(struct clk *clk);
+
+#ifdef CONFIG_DEBUG_FS
+void jz4740_clock_debugfs_init(void);
+void jz4740_clock_debugfs_add_clk(struct clk *clk);
+void jz4740_clock_debugfs_update_parent(struct clk *clk);
+#else
+static inline void jz4740_clock_debugfs_init(void) {};
+static inline void jz4740_clock_debugfs_add_clk(struct clk *clk) {};
+static inline void jz4740_clock_debugfs_update_parent(struct clk *clk) {};
+#endif
+
+#endif