| /* |
| * Copyright (c) 2022 Intel Corporation. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/kernel.h> |
| #include <zephyr/pm/device.h> |
| #include <zephyr/pm/device_runtime.h> |
| |
| #include <zephyr/logging/log.h> |
| LOG_MODULE_REGISTER(power_domain_intel_adsp, LOG_LEVEL_INF); |
| |
| struct pg_registers { |
| uint32_t SPA_bit; |
| uint32_t CPA_bit; |
| }; |
| |
| static int pd_intel_adsp_set_power_enable(struct pg_registers *reg, bool power_enable) |
| { |
| uint32_t SPA_bit_mask = BIT(reg->SPA_bit); |
| |
| if (power_enable) { |
| sys_write32(sys_read32(ACE_DfPMCCU->dfpwrctl) | SPA_bit_mask, |
| ACE_DfPMCCU->dfpwrctl); |
| } else { |
| sys_write32(sys_read32(ACE_DfPMCCU->dfpwrctl) & ~(SPA_bit_mask), |
| ACE_DfPMCCU->dfpwrctl); |
| } |
| |
| return 0; |
| } |
| |
| static int pd_intel_adsp_pm_action(const struct device *dev, enum pm_device_action action) |
| { |
| struct pg_registers *reg_data = (struct pg_registers *)dev->data; |
| |
| switch (action) { |
| case PM_DEVICE_ACTION_RESUME: |
| pm_device_children_action_run(dev, PM_DEVICE_ACTION_TURN_ON, NULL); |
| pd_intel_adsp_set_power_enable(reg_data, true); |
| break; |
| case PM_DEVICE_ACTION_SUSPEND: |
| pm_device_children_action_run(dev, PM_DEVICE_ACTION_TURN_OFF, NULL); |
| pd_intel_adsp_set_power_enable(reg_data, false); |
| break; |
| case PM_DEVICE_ACTION_TURN_ON: |
| break; |
| case PM_DEVICE_ACTION_TURN_OFF: |
| break; |
| default: |
| return -ENOTSUP; |
| } |
| |
| return 0; |
| } |
| static int pd_intel_adsp_init(const struct device *dev) |
| { |
| pm_device_init_suspended(dev); |
| pm_device_runtime_enable(dev); |
| return 0; |
| } |
| |
| #define DT_DRV_COMPAT intel_adsp_power_domain |
| |
| #define POWER_DOMAIN_DEVICE(id) \ |
| static struct pg_registers pd_pg_reg##id = { \ |
| .SPA_bit = DT_INST_PROP(id, bit_position), \ |
| .CPA_bit = DT_INST_PROP(id, bit_position), \ |
| }; \ |
| PM_DEVICE_DT_INST_DEFINE(id, pd_intel_adsp_pm_action); \ |
| DEVICE_DT_INST_DEFINE(id, pd_intel_adsp_init, PM_DEVICE_DT_INST_GET(id),\ |
| &pd_pg_reg##id, NULL, POST_KERNEL, 75, NULL); |
| |
| DT_INST_FOREACH_STATUS_OKAY(POWER_DOMAIN_DEVICE) |