threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
/* linux/arch/arm/mach-s3c64xx/cpuidle.c
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*
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* Copyright (c) 2011 Wolfson Microelectronics, plc
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* Copyright (c) 2011 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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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/kernel.h>
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#include <linux/init.h>
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#include <linux/cpuidle.h>
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#include <linux/io.h>
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#include <linux/export.h>
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#include <linux/time.h>
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#include <asm/cpuidle.h>
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#include <plat/cpu.h>
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#include <mach/map.h>
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#include "regs-sys.h"
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#include "regs-syscon-power.h"
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static int s3c64xx_enter_idle(struct cpuidle_device *dev,
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struct cpuidle_driver *drv,
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int index)
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{
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unsigned long tmp;
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/* Setup PWRCFG to enter idle mode */
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tmp = __raw_readl(S3C64XX_PWR_CFG);
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tmp &= ~S3C64XX_PWRCFG_CFG_WFI_MASK;
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tmp |= S3C64XX_PWRCFG_CFG_WFI_IDLE;
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__raw_writel(tmp, S3C64XX_PWR_CFG);
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cpu_do_idle();
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return index;
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}
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static struct cpuidle_driver s3c64xx_cpuidle_driver = {
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.name = "s3c64xx_cpuidle",
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.owner = THIS_MODULE,
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.states = {
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{
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.enter = s3c64xx_enter_idle,
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.exit_latency = 1,
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.target_residency = 1,
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.name = "IDLE",
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.desc = "System active, ARM gated",
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},
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},
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.state_count = 1,
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};
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static int __init s3c64xx_init_cpuidle(void)
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{
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if (soc_is_s3c64xx())
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return cpuidle_register(&s3c64xx_cpuidle_driver, NULL);
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return 0;
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}
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device_initcall(s3c64xx_init_cpuidle);
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