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Migrating to clkdev has several advantages: * Less code in mach-msm/clock.c * A more robust clk_get() implementation * clk_add_alias() support * clk_get_sys() support In general, this will help board authors setup clock aliases and break the dependency on device pointers in the clock tables. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
/* arch/arm/mach-msm/clock.h
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*
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* Copyright (C) 2007 Google, Inc.
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* Copyright (c) 2007-2010, Code Aurora Forum. All rights reserved.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __ARCH_ARM_MACH_MSM_CLOCK_H
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#define __ARCH_ARM_MACH_MSM_CLOCK_H
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#include <linux/init.h>
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#include <linux/list.h>
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#include <mach/clk.h>
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#define CLKFLAG_INVERT 0x00000001
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#define CLKFLAG_NOINVERT 0x00000002
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#define CLKFLAG_NONEST 0x00000004
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#define CLKFLAG_NORESET 0x00000008
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#define CLK_FIRST_AVAILABLE_FLAG 0x00000100
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#define CLKFLAG_AUTO_OFF 0x00000200
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#define CLKFLAG_MIN 0x00000400
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#define CLKFLAG_MAX 0x00000800
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struct clk_ops {
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int (*enable)(unsigned id);
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void (*disable)(unsigned id);
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void (*auto_off)(unsigned id);
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int (*reset)(unsigned id, enum clk_reset_action action);
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int (*set_rate)(unsigned id, unsigned rate);
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int (*set_min_rate)(unsigned id, unsigned rate);
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int (*set_max_rate)(unsigned id, unsigned rate);
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int (*set_flags)(unsigned id, unsigned flags);
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unsigned (*get_rate)(unsigned id);
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unsigned (*is_enabled)(unsigned id);
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long (*round_rate)(unsigned id, unsigned rate);
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bool (*is_local)(unsigned id);
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};
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struct clk {
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uint32_t id;
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uint32_t remote_id;
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uint32_t count;
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uint32_t flags;
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struct clk_ops *ops;
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const char *dbg_name;
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struct list_head list;
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};
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#define OFF CLKFLAG_AUTO_OFF
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#define CLK_MIN CLKFLAG_MIN
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#define CLK_MAX CLKFLAG_MAX
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#define CLK_MINMAX (CLK_MIN | CLK_MAX)
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#ifdef CONFIG_DEBUG_FS
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int __init clock_debug_init(void);
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int __init clock_debug_add(struct clk *clock);
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#else
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static inline int __init clock_debug_init(void) { return 0; }
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static inline int __init clock_debug_add(struct clk *clock) { return 0; }
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#endif
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#endif
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