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, 0xd8005da2, 0x17c07c1f, 152 0xd0004340, 0x17c07c1f, 0x1b80001f, 0x500f0000, 0xe8208000, 0x10006354, 153 0xfffe7b47, 0xc0c06940, 0x81401801, 0xd80048e5, 0x17c07c1f, 0x81f60407, 154 0x18c0001f, 0x10006200, 0xc0c05e60, 0x12807c1f, 0xe8208000, 0x1000625c, 155 0x00000001, 0x1b80001f, 0x20000080, 0xc0c05e60, 0x1280041f, 0x18c0001f, 156 0x10006204, 0xc0c06200, 0x1280041f, 0x18c0001f, 0x10006208, 0xc0c05e60, 157 0x12807c1f, 0xe8208000, 0x10006244, 0x00000001, 0x1b80001f, 0x20000080, 158 0xc0c05e60, 0x1280041f, 0x18d0001f, 0x10200200, 0x18c0001f, 0x10006290, 159 0xc0c05e60, 0x1280041f, 0xe8208000, 0x10006404, 0x00003101, 0xc2803780, 160 0x1292041f, 0x81469801, 0xd8204a45, 0x17c07c1f, 0x1b00001f, 0x2f7be75f, 161 0x1b80001f, 0x30000004, 0x8880000c, 0x2f7be75f, 0xd8005802, 0x17c07c1f, 162 0xc0c064c0, 0x17c07c1f, 0x18c0001f, 0x10006294, 0xe0f07fff, 0xe0e00fff, 163 0xe0e000ff, 0x81449801, 0xd8004c85, 0x17c07c1f, 0x1a00001f, 0x10006604, 164 0xe2200003, 0xc0c06580, 0x17c07c1f, 0xe2200005, 0xc0c06580, 0x17c07c1f, 165 0xa1d38407, 0xa1d98407, 0x1800001f, 0x00000012, 0x1800001f, 0x00000e12, 166 0x1800001f, 0x03800e12, 0x1800001f, 0x038e0e12, 0xe8208000, 0x10006310, 167 0x0b1600f8, 0x1b00001f, 0xbfffe7ff, 0x1b80001f, 0x90100000, 0x80c00400, 168 0xd8204fa3, 0xa1d58407, 0xa1dd8407, 0x1b00001f, 0x3fffefff, 0xd0004e60, 169 0x17c07c1f, 0x1890001f, 0x100063e8, 0x88c0000c, 0x2f7be75f, 0xd80051c3, 170 0x17c07c1f, 0x80c40001, 0xd8005143, 0x17c07c1f, 0x1b00001f, 0xbfffe7ff, 171 0xd0005180, 0x17c07c1f, 0x1b00001f, 0x7ffff7ff, 0xd0004e60, 0x17c07c1f, 172 0x80c40001, 0xd82052c3, 0x17c07c1f, 0xa1de0407, 0x1b00001f, 0x7fffe7ff, 173 0xd0004e60, 0x17c07c1f, 0x18c0001f, 0x10006294, 0xe0e001fe, 0xe0e003fc, 174 0xe0e007f8, 0xe0e00ff0, 0x1b80001f, 0x20000020, 0xe0f07ff0, 0xe0f07f00, 175 0x81449801, 0xd80055a5, 0x17c07c1f, 0x1a00001f, 0x10006604, 0xe2200002, 176 0xc0c06580, 0x17c07c1f, 0xe2200004, 0xc0c06580, 0x17c07c1f, 0x1b80001f, 177 0x200016a8, 0x1800001f, 0x03800e12, 0x1b80001f, 0x20000300, 0x1800001f, 178 0x00000e12, 0x1b80001f, 0x20000300, 0x1800001f, 0x00000012, 0x1b80001f, 179 0x20000104, 0x10007c1f, 0x81f38407, 0x81f98407, 0x81f90407, 0x81f40407, 180 0x1b80001f, 0x200016a8, 0x81401801, 0xd8005da5, 0x17c07c1f, 0xe8208000, 181 0x10006404, 0x00002101, 0x18c0001f, 0x10006290, 0x1212841f, 0xc0c05fe0, 182 0x12807c1f, 0xc0c05fe0, 0x1280041f, 0x18c0001f, 0x10006208, 0x1212841f, 183 0xc0c05fe0, 0x12807c1f, 0xe8208000, 0x10006244, 0x00000000, 0x1b80001f, 184 0x20000080, 0xc0c05fe0, 0x1280041f, 0xe8208000, 0x10200268, 0x000ffffe, 185 0x18c0001f, 0x10006204, 0x1212841f, 0xc0c06340, 0x1280041f, 0x18c0001f, 186 0x10006200, 0x1212841f, 0xc0c05fe0, 0x12807c1f, 0xe8208000, 0x1000625c, 187 0x00000000, 0x1b80001f, 0x20000080, 0xc0c05fe0, 0x1280041f, 0x19c0001f, 188 0x01411820, 0x1ac0001f, 0x55aa55aa, 0x10007c1f, 0xf0000000, 0xd8005f0a, 189 0x17c07c1f, 0xe2e0004f, 0xe2e0006f, 0xe2e0002f, 0xd8205faa, 0x17c07c1f, 190 0xe2e0002e, 0xe2e0003e, 0xe2e00032, 0xf0000000, 0x17c07c1f, 0xd80060aa, 191 0x17c07c1f, 0xe2e00036, 0xe2e0003e, 0x1380201f, 0xe2e0003c, 0xd82061ca, 192 0x17c07c1f, 0x1380201f, 0xe2e0007c, 0x1b80001f, 0x20000003, 0xe2e0005c, 193 0xe2e0004c, 0xe2e0004d, 0xf0000000, 0x17c07c1f, 0xd8206309, 0x17c07c1f, 194 0xe2e0000d, 0xe2e0000c, 0xe2e0001c, 0xe2e0001e, 0xe2e00016, 0xe2e00012, 195 0xf0000000, 0x17c07c1f, 0xd8206489, 0x17c07c1f, 0xe2e00016, 0x1380201f, 196 0xe2e0001e, 0x1380201f, 0xe2e0001c, 0x1380201f, 0xe2e0000c, 0xe2e0000d, 197 0xf0000000, 0x17c07c1f, 0xa1d40407, 0x1391841f, 0xa1d90407, 0x1393041f, 198 0xf0000000, 0x17c07c1f, 0x18d0001f, 0x10006604, 0x10cf8c1f, 0xd8206583, 199 0x17c07c1f, 0xf0000000, 0x17c07c1f, 0xe8208000, 0x11008014, 0x00000002, 200 0xe8208000, 0x11008020, 0x00000101, 0xe8208000, 0x11008004, 0x000000d0, 201 0x1a00001f, 0x11008000, 0xd800684a, 0xe220005d, 0xd820686a, 0xe2200000, 202 0xe2200001, 0xe8208000, 0x11008024, 0x00000001, 0x1b80001f, 0x20000424, 203 0xf0000000, 0x17c07c1f, 0xa1d10407, 0x1b80001f, 0x20000020, 0xf0000000, 204 0x17c07c1f 205 }; 206 207 /* 208 * PCM binary for suspend scenario 209 */ 210 static const struct pcm_desc suspend_pcm_ca7 = { 211 .version = "pcm_suspend_20150805_V1", 212 .base = suspend_binary_ca7, 213 .size = 847, 214 .sess = 2, 215 .replace = 0, 216 .vec0 = EVENT_VEC(11, 1, 0, 0), 217 .vec1 = EVENT_VEC(12, 1, 0, 54), 218 .vec2 = EVENT_VEC(30, 1, 0, 143), 219 .vec3 = EVENT_VEC(31, 1, 0, 277), 220 }; 221 222 /* 223 * SPM settings for suspend scenario 224 */ 225 static struct pwr_ctrl spm_ctrl = { 226 .wake_src = WAKE_SRC_FOR_SUSPEND, 227 .wake_src_md32 = WAKE_SRC_FOR_MD32, 228 .r0_ctrl_en = 1, 229 .r7_ctrl_en = 1, 230 .infra_dcm_lock = 1, 231 .wfi_op = WFI_OP_AND, 232 .pcm_apsrc_req = 0, 233 .ca7top_idle_mask = 0, 234 .ca15top_idle_mask = 0, 235 .mcusys_idle_mask = 0, 236 .disp_req_mask = 0, 237 .mfg_req_mask = 0, 238 .md32_req_mask = 1, 239 .srclkenai_mask = 1, 240 .ca7_wfi0_en = 1, 241 .ca7_wfi1_en = 1, 242 .ca7_wfi2_en = 1, 243 .ca7_wfi3_en = 1, 244 .ca15_wfi0_en = 1, 245 .ca15_wfi1_en = 1, 246 .ca15_wfi2_en = 1, 247 .ca15_wfi3_en = 1, 248 }; 249 250 /* 251 * go_to_sleep_before_wfi() - trigger SPM to enter suspend scenario 252 */ 253 static void go_to_sleep_before_wfi(const unsigned int spm_flags) 254 { 255 struct pwr_ctrl *pwrctrl; 256 257 pwrctrl = &spm_ctrl; 258 259 set_pwrctrl_pcm_flags(pwrctrl, spm_flags); 260 261 spm_set_sysclk_settle(); 262 263 INFO("sec = %u, wakesrc = 0x%x (%u)(%u)\n", 264 pwrctrl->timer_val, pwrctrl->wake_src, 265 is_cpu_pdn(pwrctrl->pcm_flags), 266 is_infra_pdn(pwrctrl->pcm_flags)); 267 268 spm_reset_and_init_pcm(); 269 spm_init_pcm_register(); 270 spm_set_power_control(pwrctrl); 271 spm_set_wakeup_event(pwrctrl); 272 spm_kick_pcm_to_run(pwrctrl); 273 spm_init_event_vector(&suspend_pcm_ca7); 274 spm_kick_im_to_fetch(&suspend_pcm_ca7); 275 } 276 277 /* 278 * go_to_sleep_after_wfi() - get wakeup reason after 279 * leaving suspend scenario and clean up SPM settings 280 */ 281 static enum wake_reason_t go_to_sleep_after_wfi(void) 282 { 283 struct wake_status wakesta; 284 static enum wake_reason_t last_wr = WR_NONE; 285 286 spm_get_wakeup_status(&wakesta); 287 spm_clean_after_wakeup(); 288 last_wr = spm_output_wake_reason(&wakesta); 289 290 return last_wr; 291 } 292 293 void spm_system_suspend(void) 294 { 295 spm_lock_get(); 296 go_to_sleep_before_wfi(spm_flags); 297 set_suspend_ready(); 298 spm_lock_release(); 299 } 300 301 void spm_system_suspend_finish(void) 302 { 303 spm_lock_get(); 304 spm_wake_reason = go_to_sleep_after_wfi(); 305 INFO("spm_wake_reason=%d\n", spm_wake_reason); 306 clear_all_ready(); 307 spm_lock_release(); 308 } 309