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| author | Dikshita Agarwal <quic_dikshita@quicinc.com> | 2025-02-07 10:54:48 +0300 |
|---|---|---|
| committer | Hans Verkuil <hverkuil@xs4all.nl> | 2025-02-07 13:51:18 +0300 |
| commit | bb8a95aa038e099f5ec82c466e996b006e05abd7 (patch) | |
| tree | d8808355ae7f8a6db92d81b9cf3a0e1a1dfe390d /drivers/media/platform/qcom/iris/iris_hfi_queue.c | |
| parent | fb583a214337a5600c121c9e1eecbb57fa9db688 (diff) | |
| download | linux-bb8a95aa038e099f5ec82c466e996b006e05abd7.tar.xz | |
media: iris: implement power management
Implement runtime power management for iris, including a platform
specific power on/off sequence.
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell XPS 13 9345)
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-HDK
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Diffstat (limited to 'drivers/media/platform/qcom/iris/iris_hfi_queue.c')
| -rw-r--r-- | drivers/media/platform/qcom/iris/iris_hfi_queue.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_queue.c b/drivers/media/platform/qcom/iris/iris_hfi_queue.c index ee245c540ce7..fac7df0c4d1a 100644 --- a/drivers/media/platform/qcom/iris/iris_hfi_queue.c +++ b/drivers/media/platform/qcom/iris/iris_hfi_queue.c @@ -3,6 +3,8 @@ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. */ +#include <linux/pm_runtime.h> + #include "iris_core.h" #include "iris_hfi_queue.h" #include "iris_vpu_common.h" @@ -128,10 +130,26 @@ int iris_hfi_queue_cmd_write(struct iris_core *core, void *pkt, u32 pkt_size) { int ret; + ret = pm_runtime_resume_and_get(core->dev); + if (ret < 0) + goto exit; + mutex_lock(&core->lock); ret = iris_hfi_queue_cmd_write_locked(core, pkt, pkt_size); + if (ret) { + mutex_unlock(&core->lock); + goto exit; + } mutex_unlock(&core->lock); + pm_runtime_mark_last_busy(core->dev); + pm_runtime_put_autosuspend(core->dev); + + return 0; + +exit: + pm_runtime_put_sync(core->dev); + return ret; } |