2eaa03b5be
Replace sysdev classes and struct sys_device objects used for "core" power management by the PXA platform code with struct syscore_ops objects that are simpler. This reduces the code size and the kernel memory footprint. It also is necessary for removing sysdevs entirely from the kernel in the future. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
54 lines
1 KiB
C
54 lines
1 KiB
C
/*
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* linux/arch/arm/mach-pxa/clock-pxa2xx.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/syscore_ops.h>
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#include <mach/pxa2xx-regs.h>
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#include "clock.h"
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void clk_pxa2xx_cken_enable(struct clk *clk)
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{
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CKEN |= 1 << clk->cken;
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}
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void clk_pxa2xx_cken_disable(struct clk *clk)
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{
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CKEN &= ~(1 << clk->cken);
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}
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const struct clkops clk_pxa2xx_cken_ops = {
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.enable = clk_pxa2xx_cken_enable,
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.disable = clk_pxa2xx_cken_disable,
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};
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#ifdef CONFIG_PM
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static uint32_t saved_cken;
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static int pxa2xx_clock_suspend(void)
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{
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saved_cken = CKEN;
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return 0;
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}
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static void pxa2xx_clock_resume(void)
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{
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CKEN = saved_cken;
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}
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#else
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#define pxa2xx_clock_suspend NULL
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#define pxa2xx_clock_resume NULL
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#endif
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struct syscore_ops pxa2xx_clock_syscore_ops = {
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.suspend = pxa2xx_clock_suspend,
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.resume = pxa2xx_clock_resume,
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};
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