5b41147cea
The sh7372 cpuidle code uses the same artificially designed routine shmobile_cpuidle_enter() as the .enter() callback for all of its cpuidle states. However, shmobile_cpuidle_enter() calls a different "enter" function for each state using an array of function pointers populated by the sh7372 PM initialization code. Moreover, the states[] array of the shmobile cpuidle driver is populated by that code as well, although in principle it just might have been filled with static data. All of that complexity goes away if the sh7372 cpuidle code is allowed to define its own cpuidle driver structure that can be passed for registration to the common shmobile cpuidle initialization routine, so modify the code accordingly. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Magnus Damm <damm@opensource.se>
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/*
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* CPUIdle support code for SH-Mobile ARM
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*
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* Copyright (C) 2011 Magnus Damm
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/pm.h>
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#include <linux/cpuidle.h>
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#include <linux/suspend.h>
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#include <linux/module.h>
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#include <linux/err.h>
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#include <asm/cpuidle.h>
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#include <asm/io.h>
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int shmobile_enter_wfi(struct cpuidle_device *dev, struct cpuidle_driver *drv,
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int index)
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{
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cpu_do_idle();
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return 0;
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}
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static struct cpuidle_device shmobile_cpuidle_dev;
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static struct cpuidle_driver shmobile_cpuidle_default_driver = {
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.name = "shmobile_cpuidle",
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.owner = THIS_MODULE,
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.en_core_tk_irqen = 1,
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.states[0] = ARM_CPUIDLE_WFI_STATE,
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.states[0].enter = shmobile_enter_wfi,
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.safe_state_index = 0, /* C1 */
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.state_count = 1,
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};
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static struct cpuidle_driver *cpuidle_drv = &shmobile_cpuidle_default_driver;
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void shmobile_cpuidle_set_driver(struct cpuidle_driver *drv)
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{
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cpuidle_drv = drv;
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}
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int shmobile_cpuidle_init(void)
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{
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struct cpuidle_device *dev = &shmobile_cpuidle_dev;
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cpuidle_register_driver(cpuidle_drv);
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dev->state_count = cpuidle_drv->state_count;
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cpuidle_register_device(dev);
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return 0;
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}
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