| Marshall Dawson | 5c5049e | 2020-04-23 06:43:44 -0600 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | |
| Marshall Dawson | 5c5049e | 2020-04-23 06:43:44 -0600 | [diff] [blame] | 3 | #include <console/console.h> |
| Felix Held | 60a4643 | 2020-11-12 00:14:16 +0100 | [diff] [blame] | 4 | #include <amdblocks/smu.h> |
| Marshall Dawson | 5c5049e | 2020-04-23 06:43:44 -0600 | [diff] [blame] | 5 | #include <soc/smu.h> |
| Marshall Dawson | 5c5049e | 2020-04-23 06:43:44 -0600 | [diff] [blame] | 6 | |
| 7 | /* |
| 8 | * Request the SMU to put system into S3, S4, or S5. On entry, SlpTyp determines S-State and |
| Felix Held | 60a4643 | 2020-11-12 00:14:16 +0100 | [diff] [blame] | 9 | * SlpTypeEn gets set by the SMU. Function does not return if successful. |
| Marshall Dawson | 5c5049e | 2020-04-23 06:43:44 -0600 | [diff] [blame] | 10 | */ |
| 11 | void smu_sx_entry(void) |
| 12 | { |
| 13 | struct smu_payload msg = { 0 }; /* Unused for SMC_MSG_S3ENTRY */ |
| 14 | |
| 15 | printk(BIOS_DEBUG, "SMU: Put system into S3/S4/S5\n"); |
| 16 | send_smu_message(SMC_MSG_S3ENTRY, &msg); |
| 17 | } |