diff options
Diffstat (limited to 'arch/arm/mach-mx5/pm-imx5.c')
| -rw-r--r-- | arch/arm/mach-mx5/pm-imx5.c | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/arch/arm/mach-mx5/pm-imx5.c b/arch/arm/mach-mx5/pm-imx5.c deleted file mode 100644 index 98052fc852c7..000000000000 --- a/arch/arm/mach-mx5/pm-imx5.c +++ /dev/null | |||
| @@ -1,83 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. | ||
| 3 | * | ||
| 4 | * The code contained herein is licensed under the GNU General Public | ||
| 5 | * License. You may obtain a copy of the GNU General Public License | ||
| 6 | * Version 2 or later at the following locations: | ||
| 7 | * | ||
| 8 | * http://www.opensource.org/licenses/gpl-license.html | ||
| 9 | * http://www.gnu.org/copyleft/gpl.html | ||
| 10 | */ | ||
| 11 | #include <linux/suspend.h> | ||
| 12 | #include <linux/clk.h> | ||
| 13 | #include <linux/io.h> | ||
| 14 | #include <linux/err.h> | ||
| 15 | #include <asm/cacheflush.h> | ||
| 16 | #include <asm/tlbflush.h> | ||
| 17 | #include <mach/common.h> | ||
| 18 | #include <mach/hardware.h> | ||
| 19 | #include "crm_regs.h" | ||
| 20 | |||
| 21 | static struct clk *gpc_dvfs_clk; | ||
| 22 | |||
| 23 | static int mx5_suspend_prepare(void) | ||
| 24 | { | ||
| 25 | return clk_enable(gpc_dvfs_clk); | ||
| 26 | } | ||
| 27 | |||
| 28 | static int mx5_suspend_enter(suspend_state_t state) | ||
| 29 | { | ||
| 30 | switch (state) { | ||
| 31 | case PM_SUSPEND_MEM: | ||
| 32 | mx5_cpu_lp_set(STOP_POWER_OFF); | ||
| 33 | break; | ||
| 34 | case PM_SUSPEND_STANDBY: | ||
| 35 | mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF); | ||
| 36 | break; | ||
| 37 | default: | ||
| 38 | return -EINVAL; | ||
| 39 | } | ||
| 40 | |||
| 41 | if (state == PM_SUSPEND_MEM) { | ||
| 42 | local_flush_tlb_all(); | ||
| 43 | flush_cache_all(); | ||
| 44 | |||
| 45 | /*clear the EMPGC0/1 bits */ | ||
| 46 | __raw_writel(0, MXC_SRPG_EMPGC0_SRPGCR); | ||
| 47 | __raw_writel(0, MXC_SRPG_EMPGC1_SRPGCR); | ||
| 48 | } | ||
| 49 | cpu_do_idle(); | ||
| 50 | return 0; | ||
| 51 | } | ||
| 52 | |||
| 53 | static void mx5_suspend_finish(void) | ||
| 54 | { | ||
| 55 | clk_disable(gpc_dvfs_clk); | ||
| 56 | } | ||
| 57 | |||
| 58 | static int mx5_pm_valid(suspend_state_t state) | ||
| 59 | { | ||
| 60 | return (state > PM_SUSPEND_ON && state <= PM_SUSPEND_MAX); | ||
| 61 | } | ||
| 62 | |||
| 63 | static const struct platform_suspend_ops mx5_suspend_ops = { | ||
| 64 | .valid = mx5_pm_valid, | ||
| 65 | .prepare = mx5_suspend_prepare, | ||
| 66 | .enter = mx5_suspend_enter, | ||
| 67 | .finish = mx5_suspend_finish, | ||
| 68 | }; | ||
| 69 | |||
| 70 | static int __init mx5_pm_init(void) | ||
| 71 | { | ||
| 72 | if (gpc_dvfs_clk == NULL) | ||
| 73 | gpc_dvfs_clk = clk_get(NULL, "gpc_dvfs"); | ||
| 74 | |||
| 75 | if (!IS_ERR(gpc_dvfs_clk)) { | ||
| 76 | if (cpu_is_mx51()) | ||
| 77 | suspend_set_ops(&mx5_suspend_ops); | ||
| 78 | } else | ||
| 79 | return -EPERM; | ||
| 80 | |||
| 81 | return 0; | ||
| 82 | } | ||
| 83 | device_initcall(mx5_pm_init); | ||
