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media: rockchip: cif: fix pm runtime error

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at a high frame rate (120fps), the fast switch test has a higher probability of the following errors:
Failed to get runtime pm, -22

Signed-off-by: Yiqing Zeng <zack.zeng@rock-chips.com>
Change-Id: I6d9fdd86cc69368ba340ab7e43d2b6030a72ce8c
This commit is contained in:
Yiqing Zeng
2021-09-29 16:13:28 +08:00
committed by Zefa Chen
parent 816f07cba2
commit 8164b072b3
4 changed files with 16 additions and 5 deletions
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4
drivers/media/platform/rockchip/cif/capture.c
View File

@@ -2491,7 +2491,7 @@ static void rkcif_stop_streaming(struct vb2_queue *queue)
dev->can_be_reset = false;
dev->reset_work_cancel = true;
}
pm_runtime_put(dev->dev);
pm_runtime_put_sync(dev->dev);
if (!atomic_read(&dev->pipe.stream_cnt) && dev->dummy_buf.vaddr)
rkcif_destroy_dummy_buf(stream);
@@ -3189,7 +3189,7 @@ stop_stream:
pipe_stream_off:
dev->pipe.set_stream(&dev->pipe, false);
runtime_put:
pm_runtime_put(dev->dev);
pm_runtime_put_sync(dev->dev);
destroy_buf:
if (stream->next_buf)
vb2_buffer_done(&stream->next_buf->vb.vb2_buf,

13
drivers/media/platform/rockchip/cif/dev.c
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@@ -1306,21 +1306,28 @@ static int rkcif_plat_remove(struct platform_device *pdev)
static int __maybe_unused rkcif_runtime_suspend(struct device *dev)
{
struct rkcif_device *cif_dev = dev_get_drvdata(dev);
int ret = 0;
if (atomic_dec_return(&cif_dev->hw_dev->power_cnt))
return 0;
return pm_runtime_put(cif_dev->hw_dev->dev);
mutex_lock(&cif_dev->hw_dev->dev_lock);
ret = pm_runtime_put_sync(cif_dev->hw_dev->dev);
mutex_unlock(&cif_dev->hw_dev->dev_lock);
return (ret > 0) ? 0 : ret;
}
static int __maybe_unused rkcif_runtime_resume(struct device *dev)
{
struct rkcif_device *cif_dev = dev_get_drvdata(dev);
int ret = 0;
if (atomic_inc_return(&cif_dev->hw_dev->power_cnt) > 1)
return 0;
return pm_runtime_get_sync(cif_dev->hw_dev->dev);
mutex_lock(&cif_dev->hw_dev->dev_lock);
ret = pm_runtime_get_sync(cif_dev->hw_dev->dev);
mutex_unlock(&cif_dev->hw_dev->dev_lock);
return (ret > 0) ? 0 : ret;
}
static int __maybe_unused __rkcif_clr_unready_dev(void)

3
drivers/media/platform/rockchip/cif/hw.c
View File

@@ -942,6 +942,8 @@ static int rkcif_plat_hw_probe(struct platform_device *pdev)
rkcif_hw_soft_reset(cif_hw, true);
mutex_init(&cif_hw->dev_lock);
pm_runtime_enable(&pdev->dev);
if (data->chip_id == CHIP_RK1808_CIF ||
@@ -962,6 +964,7 @@ static int rkcif_plat_remove(struct platform_device *pdev)
if (cif_hw->iommu_en)
rkcif_iommu_cleanup(cif_hw);
mutex_destroy(&cif_hw->dev_lock);
if (cif_hw->chip_id != CHIP_RK1808_CIF &&
cif_hw->chip_id != CHIP_RV1126_CIF &&
cif_hw->chip_id != CHIP_RV1126_CIF_LITE &&

1
drivers/media/platform/rockchip/cif/hw.h
View File

@@ -84,6 +84,7 @@ struct rkcif_hw {
atomic_t power_cnt;
const struct rkcif_hw_match_data *match_data;
struct mutex dev_lock;
};
void rkcif_hw_soft_reset(struct rkcif_hw *cif_hw, bool is_rst_iommu);