diff options
Diffstat (limited to 'drivers/media/platform/qcom/iris/iris_hfi_common.c')
| -rw-r--r-- | drivers/media/platform/qcom/iris/iris_hfi_common.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_common.c b/drivers/media/platform/qcom/iris/iris_hfi_common.c index a19b988c9a88..29f56c2bf74c 100644 --- a/drivers/media/platform/qcom/iris/iris_hfi_common.c +++ b/drivers/media/platform/qcom/iris/iris_hfi_common.c @@ -3,6 +3,9 @@ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. */ +#include <linux/pm_runtime.h> + +#include "iris_firmware.h" #include "iris_core.h" #include "iris_hfi_common.h" #include "iris_vpu_common.h" @@ -38,6 +41,7 @@ irqreturn_t iris_hfi_isr_handler(int irq, void *data) return IRQ_NONE; mutex_lock(&core->lock); + pm_runtime_mark_last_busy(core->dev); iris_vpu_clear_interrupt(core); mutex_unlock(&core->lock); @@ -48,3 +52,61 @@ irqreturn_t iris_hfi_isr_handler(int irq, void *data) return IRQ_HANDLED; } + +int iris_hfi_pm_suspend(struct iris_core *core) +{ + int ret; + + ret = iris_vpu_prepare_pc(core); + if (ret) { + pm_runtime_mark_last_busy(core->dev); + ret = -EAGAIN; + goto error; + } + + ret = iris_set_hw_state(core, false); + if (ret) + goto error; + + iris_vpu_power_off(core); + + return 0; + +error: + dev_err(core->dev, "failed to suspend\n"); + + return ret; +} + +int iris_hfi_pm_resume(struct iris_core *core) +{ + const struct iris_hfi_command_ops *ops = core->hfi_ops; + int ret; + + ret = iris_vpu_power_on(core); + if (ret) + goto error; + + ret = iris_set_hw_state(core, true); + if (ret) + goto err_power_off; + + ret = iris_vpu_boot_firmware(core); + if (ret) + goto err_suspend_hw; + + ret = ops->sys_interframe_powercollapse(core); + if (ret) + goto err_suspend_hw; + + return 0; + +err_suspend_hw: + iris_set_hw_state(core, false); +err_power_off: + iris_vpu_power_off(core); +error: + dev_err(core->dev, "failed to resume\n"); + + return -EBUSY; +} |