1 /* 2 * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * Redistributions of source code must retain the above copyright notice, this 8 * list of conditions and the following disclaimer. 9 * 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * Neither the name of ARM nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 #include <bakery_lock.h> 31 #include <debug.h> 32 #include <spm.h> 33 #include <spm_suspend.h> 34 35 /* 36 * System Power Manager (SPM) is a hardware module, which controls cpu or 37 * system power for different power scenarios using different firmware. 38 * This driver controls the system power in system suspend flow. 39 */ 40 41 #define WAIT_UART_ACK_TIMES 80 /* 80 * 10us */ 42 43 #define WAKE_SRC_FOR_SUSPEND \ 44 (WAKE_SRC_KP | WAKE_SRC_EINT | WAKE_SRC_MD32 | \ 45 WAKE_SRC_USB_CD | WAKE_SRC_USB_PDN | WAKE_SRC_THERM | \ 46 WAKE_SRC_SYSPWREQ | WAKE_SRC_ALL_MD32) 47 48 #define WAKE_SRC_FOR_MD32 0 49 50 #define spm_is_wakesrc_invalid(wakesrc) \ 51 (!!((unsigned int)(wakesrc) & 0xc0003803)) 52 53 const unsigned int spm_flags = 54 SPM_DUALVCORE_PDN_DIS | SPM_PASR_DIS | SPM_DPD_DIS | 55 SPM_CPU_DVS_DIS | SPM_OPT | SPM_INFRA_PDN_DIS; 56 57 enum wake_reason_t spm_wake_reason = WR_NONE; 58 59 /********************************************************** 60 * PCM sequence for cpu suspend 61 **********************************************************/ 62 static const unsigned int suspend_binary_ca7[] = { 63 0x81f58407, 0x81f68407, 0x803a0400, 0x803a8400, 0x1b80001f, 0x20000000, 64 0x80300400, 0x80318400, 0x80328400, 0xa1d28407, 0x81f20407, 0x81409801, 65 0xd8000245, 0x17c07c1f, 0x18c0001f, 0x10006234, 0xc0c031a0, 0x1200041f, 66 0x80310400, 0x1b80001f, 0x2000000a, 0xa0110400, 0x18c0001f, 0x100062c8, 67 0xe0e00010, 0xe0e00030, 0xe0e00070, 0xe0e000f0, 0x1b80001f, 0x2000001a, 68 0xe0e00ff0, 0xe8208000, 0x10006354, 0xfffe7fff, 0xe8208000, 0x10006834, 69 0x00000010, 0x81f00407, 0xa1dd0407, 0x81fd0407, 0xc2803780, 0x1290041f, 70 0x8880000c, 0x2f7be75f, 0xd8200642, 0x17c07c1f, 0x1b00001f, 0x7fffe7ff, 71 0xd0000680, 0x17c07c1f, 0x1b00001f, 0x7ffff7ff, 0xf0000000, 0x17c07c1f, 72 0x80880001, 0xd8000762, 0x17c07c1f, 0xd00027a0, 0x1200041f, 0xe8208000, 73 0x10006834, 0x00000000, 0x1b00001f, 0x3fffe7ff, 0x1b80001f, 0x20000004, 74 0xd820092c, 0x17c07c1f, 0xe8208000, 0x10006834, 0x00000010, 0xd00011a0, 75 0x17c07c1f, 0x18c0001f, 0x10006608, 0x1910001f, 0x10006608, 0x813b0404, 76 0xe0c00004, 0x1880001f, 0x10006320, 0xc0c03680, 0xe080000f, 0xd8200b23, 77 0x17c07c1f, 0x1b00001f, 0x7ffff7ff, 0xd00011a0, 0x17c07c1f, 0xe080001f, 78 0xe8208000, 0x10006354, 0xffffffff, 0x18c0001f, 0x100062c8, 0xe0e000f0, 79 0xe0e00030, 0xe0e00000, 0x81409801, 0xd8000fe5, 0x17c07c1f, 0x18c0001f, 80 0x10004094, 0x1910001f, 0x1020e374, 0xe0c00004, 0x18c0001f, 0x10004098, 81 0x1910001f, 0x1020e378, 0xe0c00004, 0x18c0001f, 0x10011094, 0x1910001f, 82 0x10213374, 0xe0c00004, 0x18c0001f, 0x10011098, 0x1910001f, 0x10213378, 83 0xe0c00004, 0x1910001f, 0x10213378, 0x18c0001f, 0x10006234, 0xc0c03360, 84 0x17c07c1f, 0xc2803780, 0x1290841f, 0xa1d20407, 0x81f28407, 0xa1d68407, 85 0xa0128400, 0xa0118400, 0xa0100400, 0xa01a8400, 0xa01a0400, 0x19c0001f, 86 0x001c239f, 0x1b00001f, 0x3fffefff, 0xf0000000, 0x17c07c1f, 0x808d8001, 87 0xd8201422, 0x17c07c1f, 0x803d8400, 0x1b80001f, 0x2000001a, 0x80340400, 88 0x17c07c1f, 0x17c07c1f, 0x80310400, 0x81fa0407, 0x81f18407, 0x81f08407, 89 0xa1dc0407, 0x1b80001f, 0x200000b6, 0xd00020e0, 0x17c07c1f, 0x1880001f, 90 0x20000208, 0x81411801, 0xd8001605, 0x17c07c1f, 0xe8208000, 0x1000f600, 91 0xd2000000, 0x1380081f, 0x18c0001f, 0x10006240, 0xe0e00016, 0xe0e0001e, 92 0xe0e0000e, 0xe0e0000f, 0x80368400, 0x1380081f, 0x80370400, 0x1380081f, 93 0x80360400, 0x803e0400, 0x1380081f, 0x80380400, 0x803b0400, 0xa01d8400, 94 0x1b80001f, 0x20000034, 0x803d8400, 0x1b80001f, 0x20000152, 0x803d0400, 95 0x1380081f, 0x18c0001f, 0x1000f5c8, 0x1910001f, 0x1000f5c8, 0xa1000404, 96 0xe0c00004, 0x18c0001f, 0x100125c8, 0x1910001f, 0x100125c8, 0xa1000404, 97 0xe0c00004, 0x1910001f, 0x100125c8, 0x80340400, 0x17c07c1f, 0x17c07c1f, 98 0x80310400, 0xe8208000, 0x10000044, 0x00000100, 0x1b80001f, 0x20000068, 99 0x1b80001f, 0x2000000a, 0x18c0001f, 0x10006240, 0xe0e0000d, 0xd8001e65, 100 0x17c07c1f, 0x18c0001f, 0x100040f4, 0x1910001f, 0x100040f4, 0xa11c8404, 101 0xe0c00004, 0x1b80001f, 0x2000000a, 0x813c8404, 0xe0c00004, 0x18c0001f, 102 0x100110f4, 0x1910001f, 0x100110f4, 0xa11c8404, 0xe0c00004, 0x1b80001f, 103 0x2000000a, 0x813c8404, 0xe0c00004, 0x1b80001f, 0x20000100, 0x81fa0407, 104 0x81f18407, 0x81f08407, 0xe8208000, 0x10006354, 0xfffe7b47, 0x18c0001f, 105 0x65930003, 0xc0c03080, 0x17c07c1f, 0xa1d80407, 0xa1dc0407, 0x18c0001f, 106 0x10006608, 0x1910001f, 0x10006608, 0xa11b0404, 0xe0c00004, 0xc2803780, 107 0x1291041f, 0x8880000c, 0x2f7be75f, 0xd8202222, 0x17c07c1f, 0x1b00001f, 108 0x3fffe7ff, 0xd0002260, 0x17c07c1f, 0x1b00001f, 0xbfffe7ff, 0xf0000000, 109 0x17c07c1f, 0x1890001f, 0x10006608, 0x808b0801, 0xd8202502, 0x17c07c1f, 110 0x1880001f, 0x10006320, 0xc0c03400, 0xe080000f, 0xd8002663, 0x17c07c1f, 111 0xe080001f, 0xa1da0407, 0x81fc0407, 0xa0110400, 0xa0140400, 0xa01d8400, 112 0xd0002fc0, 0x17c07c1f, 0x1b80001f, 0x20000fdf, 0x1890001f, 0x10006608, 113 0x80c98801, 0x810a8801, 0x10918c1f, 0xa0939002, 0x8080080d, 0xd82027a2, 114 0x12007c1f, 0x1b00001f, 0x3fffe7ff, 0x1b80001f, 0x20000004, 0xd800304c, 115 0x17c07c1f, 0x1b00001f, 0xbfffe7ff, 0xd0003040, 0x17c07c1f, 0x81f80407, 116 0x81fc0407, 0x18c0001f, 0x65930006, 0xc0c03080, 0x17c07c1f, 0x18c0001f, 117 0x65930007, 0xc0c03080, 0x17c07c1f, 0x1880001f, 0x10006320, 0xc0c03400, 118 0xe080000f, 0xd8002663, 0x17c07c1f, 0xe080001f, 0x18c0001f, 0x65930005, 119 0xc0c03080, 0x17c07c1f, 0xa1da0407, 0xe8208000, 0x10000048, 0x00000100, 120 0x1b80001f, 0x20000068, 0xa0110400, 0xa0140400, 0x18c0001f, 0x1000f5c8, 121 0x1910001f, 0x1000f5c8, 0x81200404, 0xe0c00004, 0x18c0001f, 0x100125c8, 122 0x1910001f, 0x100125c8, 0x81200404, 0xe0c00004, 0x1910001f, 0x100125c8, 123 0xa01d0400, 0xa01b0400, 0xa0180400, 0x803d8400, 0xa01e0400, 0xa0160400, 124 0xa0170400, 0xa0168400, 0x1b80001f, 0x20000104, 0x81411801, 0xd8002f85, 125 0x17c07c1f, 0x18c0001f, 0x10006240, 0xc0c03360, 0x17c07c1f, 0xe8208000, 126 0x1000f600, 0xd2000001, 0xd8000768, 0x17c07c1f, 0xc2803780, 0x1291841f, 127 0x1b00001f, 0x7ffff7ff, 0xf0000000, 0x17c07c1f, 0x1900001f, 0x10006830, 128 0xe1000003, 0x18c0001f, 0x10006834, 0xe0e00000, 0xe0e00001, 0xf0000000, 129 0x17c07c1f, 0xe0f07f16, 0x1380201f, 0xe0f07f1e, 0x1380201f, 0xe0f07f0e, 130 0x1b80001f, 0x20000104, 0xe0f07f0c, 0xe0f07f0d, 0xe0f07e0d, 0xe0f07c0d, 131 0xe0f0780d, 0xf0000000, 0xe0f0700d, 0xe0f07f0d, 0xe0f07f0f, 0xe0f07f1e, 132 0xf0000000, 0xe0f07f12, 0x11407c1f, 0x81f08407, 0x81f18407, 0x1b80001f, 133 0x20000001, 0xa1d08407, 0xa1d18407, 0x1392841f, 0x812ab401, 0x80ebb401, 134 0xa0c00c04, 0xd8203603, 0x17c07c1f, 0x80c01403, 0xd8203423, 0x01400405, 135 0x1900001f, 0x10006814, 0xf0000000, 0xe1000003, 0xa1d00407, 0x1b80001f, 136 0x20000208, 0x80ea3401, 0x1a00001f, 0x10006814, 0xf0000000, 0xe2000003, 137 0x18c0001f, 0x10006b6c, 0x1910001f, 0x10006b6c, 0xa1002804, 0xf0000000, 138 0xe0c00004, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 139 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 140 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 141 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 142 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 143 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 144 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 145 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 146 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 147 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 148 0x17c07c1f, 0x17c07c1f, 0x1840001f, 0x00000001, 0xa1d48407, 0x1990001f, 149 0x10006b08, 0x1a50001f, 0x10006610, 0x8246a401, 0xe8208000, 0x10006b6c, 150 0x00000000, 0x1b00001f, 0x2f7be75f, 0x81469801, 0xd8004305, 0x17c07c1f, 151 0x1b80001f, 0xd00f0000, 0x8880000c, 0x2f7be75f, 0xd8005d62, 0x17c07c1f, 152 0xd0004340, 0x17c07c1f, 0x1b80001f, 0x500f0000, 0xe8208000, 0x10006354, 153 0xfffe7b47, 0xc0c06900, 0x81401801, 0xd80048a5, 0x17c07c1f, 0x81f60407, 154 0x18c0001f, 0x10006200, 0xc0c05e20, 0x12807c1f, 0xe8208000, 0x1000625c, 155 0x00000001, 0x1b80001f, 0x20000080, 0xc0c05e20, 0x1280041f, 0x18c0001f, 156 0x10006204, 0xc0c061c0, 0x1280041f, 0x18c0001f, 0x10006208, 0xc0c05e20, 157 0x12807c1f, 0xe8208000, 0x10006244, 0x00000001, 0x1b80001f, 0x20000080, 158 0xc0c05e20, 0x1280041f, 0x18c0001f, 0x10006290, 0xc0c05e20, 0x1280041f, 159 0xe8208000, 0x10006404, 0x00003101, 0xc2803780, 0x1292041f, 0x81469801, 160 0xd8204a05, 0x17c07c1f, 0x1b00001f, 0x2f7be75f, 0x1b80001f, 0x30000004, 161 0x8880000c, 0x2f7be75f, 0xd80057c2, 0x17c07c1f, 0xc0c06480, 0x17c07c1f, 162 0x18c0001f, 0x10006294, 0xe0f07fff, 0xe0e00fff, 0xe0e000ff, 0x81449801, 163 0xd8004c45, 0x17c07c1f, 0x1a00001f, 0x10006604, 0xe2200003, 0xc0c06540, 164 0x17c07c1f, 0xe2200005, 0xc0c06540, 0x17c07c1f, 0xa1d38407, 0xa1d98407, 165 0x1800001f, 0x00000012, 0x1800001f, 0x00000e12, 0x1800001f, 0x03800e12, 166 0x1800001f, 0x038e0e12, 0xe8208000, 0x10006310, 0x0b1600f8, 0x1b00001f, 167 0xbfffe7ff, 0x1b80001f, 0x90100000, 0x80c00400, 0xd8204f63, 0xa1d58407, 168 0xa1dd8407, 0x1b00001f, 0x3fffefff, 0xd0004e20, 0x17c07c1f, 0x1890001f, 169 0x100063e8, 0x88c0000c, 0x2f7be75f, 0xd8005183, 0x17c07c1f, 0x80c40001, 170 0xd8005103, 0x17c07c1f, 0x1b00001f, 0xbfffe7ff, 0xd0005140, 0x17c07c1f, 171 0x1b00001f, 0x7ffff7ff, 0xd0004e20, 0x17c07c1f, 0x80c40001, 0xd8205283, 172 0x17c07c1f, 0xa1de0407, 0x1b00001f, 0x7fffe7ff, 0xd0004e20, 0x17c07c1f, 173 0x18c0001f, 0x10006294, 0xe0e001fe, 0xe0e003fc, 0xe0e007f8, 0xe0e00ff0, 174 0x1b80001f, 0x20000020, 0xe0f07ff0, 0xe0f07f00, 0x81449801, 0xd8005565, 175 0x17c07c1f, 0x1a00001f, 0x10006604, 0xe2200002, 0xc0c06540, 0x17c07c1f, 176 0xe2200004, 0xc0c06540, 0x17c07c1f, 0x1b80001f, 0x200016a8, 0x1800001f, 177 0x03800e12, 0x1b80001f, 0x20000300, 0x1800001f, 0x00000e12, 0x1b80001f, 178 0x20000300, 0x1800001f, 0x00000012, 0x1b80001f, 0x20000104, 0x10007c1f, 179 0x81f38407, 0x81f98407, 0x81f90407, 0x81f40407, 0x1b80001f, 0x200016a8, 180 0x81401801, 0xd8005d65, 0x17c07c1f, 0xe8208000, 0x10006404, 0x00002101, 181 0x18c0001f, 0x10006290, 0x1212841f, 0xc0c05fa0, 0x12807c1f, 0xc0c05fa0, 182 0x1280041f, 0x18c0001f, 0x10006208, 0x1212841f, 0xc0c05fa0, 0x12807c1f, 183 0xe8208000, 0x10006244, 0x00000000, 0x1b80001f, 0x20000080, 0xc0c05fa0, 184 0x1280041f, 0xe8208000, 0x10200268, 0x000ffffe, 0x18c0001f, 0x10006204, 185 0x1212841f, 0xc0c06300, 0x1280041f, 0x18c0001f, 0x10006200, 0x1212841f, 186 0xc0c05fa0, 0x12807c1f, 0xe8208000, 0x1000625c, 0x00000000, 0x1b80001f, 187 0x20000080, 0xc0c05fa0, 0x1280041f, 0x19c0001f, 0x01411820, 0x1ac0001f, 188 0x55aa55aa, 0x10007c1f, 0xf0000000, 0xd8005eca, 0x17c07c1f, 0xe2e0004f, 189 0xe2e0006f, 0xe2e0002f, 0xd8205f6a, 0x17c07c1f, 0xe2e0002e, 0xe2e0003e, 190 0xe2e00032, 0xf0000000, 0x17c07c1f, 0xd800606a, 0x17c07c1f, 0xe2e00036, 191 0xe2e0003e, 0x1380201f, 0xe2e0003c, 0xd820618a, 0x17c07c1f, 0x1380201f, 192 0xe2e0007c, 0x1b80001f, 0x20000003, 0xe2e0005c, 0xe2e0004c, 0xe2e0004d, 193 0xf0000000, 0x17c07c1f, 0xd82062c9, 0x17c07c1f, 0xe2e0000d, 0xe2e0000c, 194 0xe2e0001c, 0xe2e0001e, 0xe2e00016, 0xe2e00012, 0xf0000000, 0x17c07c1f, 195 0xd8206449, 0x17c07c1f, 0xe2e00016, 0x1380201f, 0xe2e0001e, 0x1380201f, 196 0xe2e0001c, 0x1380201f, 0xe2e0000c, 0xe2e0000d, 0xf0000000, 0x17c07c1f, 197 0xa1d40407, 0x1391841f, 0xa1d90407, 0x1393041f, 0xf0000000, 0x17c07c1f, 198 0x18d0001f, 0x10006604, 0x10cf8c1f, 0xd8206543, 0x17c07c1f, 0xf0000000, 199 0x17c07c1f, 0xe8208000, 0x11008014, 0x00000002, 0xe8208000, 0x11008020, 200 0x00000101, 0xe8208000, 0x11008004, 0x000000d0, 0x1a00001f, 0x11008000, 201 0xd800680a, 0xe220005d, 0xd820682a, 0xe2200000, 0xe2200001, 0xe8208000, 202 0x11008024, 0x00000001, 0x1b80001f, 0x20000424, 0xf0000000, 0x17c07c1f, 203 0xa1d10407, 0x1b80001f, 0x20000020, 0xf0000000, 0x17c07c1f 204 }; 205 206 /* 207 * PCM binary for suspend scenario 208 */ 209 static const struct pcm_desc suspend_pcm_ca7 = { 210 .version = "pcm_suspend_v32.18_20140721_mt8173_v00.03_MD32_EMPTY_CA7", 211 .base = suspend_binary_ca7, 212 .size = 845, 213 .sess = 2, 214 .replace = 0, 215 .vec0 = EVENT_VEC(11, 1, 0, 0), 216 .vec1 = EVENT_VEC(12, 1, 0, 54), 217 .vec2 = EVENT_VEC(30, 1, 0, 143), 218 .vec3 = EVENT_VEC(31, 1, 0, 277), 219 }; 220 221 /* 222 * SPM settings for suspend scenario 223 */ 224 static struct pwr_ctrl spm_ctrl = { 225 .wake_src = WAKE_SRC_FOR_SUSPEND, 226 .wake_src_md32 = WAKE_SRC_FOR_MD32, 227 .r0_ctrl_en = 1, 228 .r7_ctrl_en = 1, 229 .infra_dcm_lock = 1, 230 .wfi_op = WFI_OP_AND, 231 .pcm_apsrc_req = 0, 232 .ca7top_idle_mask = 0, 233 .ca15top_idle_mask = 0, 234 .mcusys_idle_mask = 0, 235 .disp_req_mask = 0, 236 .mfg_req_mask = 0, 237 .md32_req_mask = 1, 238 .srclkenai_mask = 1, 239 .ca7_wfi0_en = 1, 240 .ca7_wfi1_en = 1, 241 .ca7_wfi2_en = 1, 242 .ca7_wfi3_en = 1, 243 .ca15_wfi0_en = 1, 244 .ca15_wfi1_en = 1, 245 .ca15_wfi2_en = 1, 246 .ca15_wfi3_en = 1, 247 }; 248 249 /* 250 * go_to_sleep_before_wfi() - trigger SPM to enter suspend scenario 251 */ 252 static void go_to_sleep_before_wfi(const unsigned int spm_flags) 253 { 254 struct pwr_ctrl *pwrctrl; 255 256 pwrctrl = &spm_ctrl; 257 258 set_pwrctrl_pcm_flags(pwrctrl, spm_flags); 259 260 spm_set_sysclk_settle(); 261 262 INFO("sec = %u, wakesrc = 0x%x (%u)(%u)\n", 263 pwrctrl->timer_val, pwrctrl->wake_src, 264 is_cpu_pdn(pwrctrl->pcm_flags), 265 is_infra_pdn(pwrctrl->pcm_flags)); 266 267 spm_reset_and_init_pcm(); 268 spm_init_pcm_register(); 269 spm_set_power_control(pwrctrl); 270 spm_set_wakeup_event(pwrctrl); 271 spm_kick_pcm_to_run(pwrctrl); 272 spm_init_event_vector(&suspend_pcm_ca7); 273 spm_kick_im_to_fetch(&suspend_pcm_ca7); 274 } 275 276 /* 277 * go_to_sleep_after_wfi() - get wakeup reason after 278 * leaving suspend scenario and clean up SPM settings 279 */ 280 static enum wake_reason_t go_to_sleep_after_wfi(void) 281 { 282 struct wake_status wakesta; 283 static enum wake_reason_t last_wr = WR_NONE; 284 285 spm_get_wakeup_status(&wakesta); 286 spm_clean_after_wakeup(); 287 last_wr = spm_output_wake_reason(&wakesta); 288 289 return last_wr; 290 } 291 292 void spm_system_suspend(void) 293 { 294 spm_lock_get(); 295 go_to_sleep_before_wfi(spm_flags); 296 set_suspend_ready(); 297 spm_lock_release(); 298 } 299 300 void spm_system_suspend_finish(void) 301 { 302 spm_lock_get(); 303 spm_wake_reason = go_to_sleep_after_wfi(); 304 INFO("spm_wake_reason=%d\n", spm_wake_reason); 305 clear_all_ready(); 306 spm_lock_release(); 307 } 308