projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 3aa770e7 AS |
1 | /* |
| 2 | * hp6x0 Power Management Routines | |
| 3 | * | |
| 4 | * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU General Public License. | |
| 8 | */ | |
| 3aa770e7 AS |
9 | #include <linux/init.h> |
| 10 | #include <linux/suspend.h> | |
| 11 | #include <linux/errno.h> | |
| 12 | #include <linux/time.h> | |
| 13 | #include <asm/io.h> | |
| 14 | #include <asm/hd64461.h> | |
| 15 | #include <asm/hp6xx/hp6xx.h> | |
| 16 | #include <asm/cpu/dac.h> | |
| 17 | #include <asm/pm.h> | |
| 18 | ||
| 19 | #define STBCR 0xffffff82 | |
| 20 | #define STBCR2 0xffffff88 | |
| 21 | ||
| 22 | static int hp6x0_pm_enter(suspend_state_t state) | |
| 23 | { | |
| 24 | u8 stbcr, stbcr2; | |
| 25 | #ifdef CONFIG_HD64461_ENABLER | |
| 26 | u8 scr; | |
| 27 | u16 hd64461_stbcr; | |
| 28 | #endif | |
| 29 | ||
| 30 | if (state != PM_SUSPEND_MEM) | |
| 31 | return -EINVAL; | |
| 32 | ||
| 33 | #ifdef CONFIG_HD64461_ENABLER | |
| 34 | outb(0, HD64461_PCC1CSCIER); | |
| 35 | ||
| 36 | scr = inb(HD64461_PCC1SCR); | |
| 37 | scr |= HD64461_PCCSCR_VCC1; | |
| 38 | outb(scr, HD64461_PCC1SCR); | |
| 39 | ||
| 40 | hd64461_stbcr = inw(HD64461_STBCR); | |
| 41 | hd64461_stbcr |= HD64461_STBCR_SPC1ST; | |
| 42 | outw(hd64461_stbcr, HD64461_STBCR); | |
| 43 | #endif | |
| 44 | ||
| 45 | ctrl_outb(0x1f, DACR); | |
| 46 | ||
| 47 | stbcr = ctrl_inb(STBCR); | |
| 48 | ctrl_outb(0x01, STBCR); | |
| 49 | ||
| 50 | stbcr2 = ctrl_inb(STBCR2); | |
| 51 | ctrl_outb(0x7f , STBCR2); | |
| 52 | ||
| 53 | outw(0xf07f, HD64461_SCPUCR); | |
| 54 | ||
| 55 | pm_enter(); | |
| 56 | ||
| 57 | outw(0, HD64461_SCPUCR); | |
| 58 | ctrl_outb(stbcr, STBCR); | |
| 59 | ctrl_outb(stbcr2, STBCR2); | |
| 60 | ||
| 61 | #ifdef CONFIG_HD64461_ENABLER | |
| 62 | hd64461_stbcr = inw(HD64461_STBCR); | |
| 63 | hd64461_stbcr &= ~HD64461_STBCR_SPC1ST; | |
| 64 | outw(hd64461_stbcr, HD64461_STBCR); | |
| 65 | ||
| 66 | outb(0x4c, HD64461_PCC1CSCIER); | |
| 67 | outb(0x00, HD64461_PCC1CSCR); | |
| 68 | #endif | |
| 69 | ||
| 70 | return 0; | |
| 71 | } | |
| 72 | ||
| 73 | /* | |
| 74 | * Set to PM_DISK_FIRMWARE so we can quickly veto suspend-to-disk. | |
| 75 | */ | |
| 76 | static struct pm_ops hp6x0_pm_ops = { | |
| 77 | .pm_disk_mode = PM_DISK_FIRMWARE, | |
| 78 | .enter = hp6x0_pm_enter, | |
| 79 | }; | |
| 80 | ||
| 81 | static int __init hp6x0_pm_init(void) | |
| 82 | { | |
| 83 | pm_set_ops(&hp6x0_pm_ops); | |
| 84 | return 0; | |
| 85 | } | |
| 86 | ||
| 87 | late_initcall(hp6x0_pm_init); |