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9c0ebcf78f
Currently, the prototype of cpufreq_drivers target routines is: int target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation); And most of the drivers call cpufreq_frequency_table_target() to get a valid index of their frequency table which is closest to the target_freq. And they don't use target_freq and relation after that. So, it makes sense to just do this work in cpufreq core before calling cpufreq_frequency_table_target() and simply pass index instead. But this can be done only with drivers which expose their frequency table with cpufreq core. For others we need to stick with the old prototype of target() until those drivers are converted to expose frequency tables. This patch implements the new light weight prototype for target_index() routine. It looks like this: int target_index(struct cpufreq_policy *policy, unsigned int index); CPUFreq core will call cpufreq_frequency_table_target() before calling this routine and pass index to it. Because CPUFreq core now requires to call routines present in freq_table.c CONFIG_CPU_FREQ_TABLE must be enabled all the time. This also marks target() interface as deprecated. So, that new drivers avoid using it. And Documentation is updated accordingly. It also converts existing .target() to newly defined light weight .target_index() routine for many driver. Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Russell King <linux@arm.linux.org.uk> Acked-by: David S. Miller <davem@davemloft.net> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rjw@rjwysocki.net>
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/*
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* linux/arch/arm/mach-sa1100/generic.h
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*
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* Author: Nicolas Pitre
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*/
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#include <linux/cpufreq.h>
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#include <linux/reboot.h>
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extern void sa1100_timer_init(void);
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extern void __init sa1100_map_io(void);
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extern void __init sa1100_init_irq(void);
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extern void __init sa1100_init_gpio(void);
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extern void sa11x0_restart(enum reboot_mode, const char *);
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extern void sa11x0_init_late(void);
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#define SET_BANK(__nr,__start,__size) \
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mi->bank[__nr].start = (__start), \
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mi->bank[__nr].size = (__size)
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extern void sa1110_mb_enable(void);
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extern void sa1110_mb_disable(void);
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extern struct cpufreq_frequency_table sa11x0_freq_table[];
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extern unsigned int sa11x0_getspeed(unsigned int cpu);
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struct flash_platform_data;
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struct resource;
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void sa11x0_register_mtd(struct flash_platform_data *flash,
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struct resource *res, int nr);
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struct irda_platform_data;
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void sa11x0_register_irda(struct irda_platform_data *irda);
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struct mcp_plat_data;
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void sa11x0_ppc_configure_mcp(void);
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void sa11x0_register_mcp(struct mcp_plat_data *data);
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struct sa1100fb_mach_info;
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void sa11x0_register_lcd(struct sa1100fb_mach_info *inf);
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#ifdef CONFIG_PM
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int sa11x0_pm_init(void);
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#else
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static inline int sa11x0_pm_init(void) { return 0; }
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#endif
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