[V4,4/8] media: mtk-jpegdec: add jpegdec timeout func interface

From: Irui Wang
Date: Sun Jun 26 2022 - 22:56:08 EST


From: kyrie wu <kyrie.wu@xxxxxxxxxxxx>

Generalizes jpegdec timeout func interfaces to handle HW timeout.

Signed-off-by: kyrie wu <kyrie.wu@xxxxxxxxxxxx>
---
.../platform/mediatek/jpeg/mtk_jpeg_core.h | 2 ++
.../platform/mediatek/jpeg/mtk_jpeg_dec_hw.c | 25 +++++++++++++++++++
2 files changed, 27 insertions(+)

diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
index 29cd71fd713e..353ce40f6ca2 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
@@ -171,6 +171,8 @@ struct mtk_jpegdec_comp_dev {
struct mtk_jpegdec_clk jdec_clk;
int jpegdec_irq;
int hw_id;
+ struct delayed_work job_timeout_work;
+ struct mtk_jpeg_hw_param hw_param;
};

/**
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
index fc98fe122874..e9e99fea656e 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
@@ -440,6 +440,25 @@ void mtk_jpeg_dec_set_config(void __iomem *base,
}
EXPORT_SYMBOL_GPL(mtk_jpeg_dec_set_config);

+static void mtk_jpegdec_timeout_work(struct work_struct *work)
+{
+ enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
+ struct mtk_jpegdec_comp_dev *cjpeg =
+ container_of(work, struct mtk_jpegdec_comp_dev,
+ job_timeout_work.work);
+ struct vb2_v4l2_buffer *src_buf, *dst_buf;
+
+ src_buf = cjpeg->hw_param.src_buffer;
+ dst_buf = cjpeg->hw_param.dst_buffer;
+ v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, true);
+
+ mtk_jpeg_dec_reset(cjpeg->reg_base);
+ clk_disable_unprepare(cjpeg->jdec_clk.clks->clk);
+ pm_runtime_put(cjpeg->dev);
+ v4l2_m2m_buf_done(src_buf, buf_state);
+ v4l2_m2m_buf_done(dst_buf, buf_state);
+}
+
static irqreturn_t mtk_jpegdec_hw_irq_handler(int irq, void *priv)
{
struct vb2_v4l2_buffer *src_buf, *dst_buf;
@@ -453,6 +472,8 @@ static irqreturn_t mtk_jpegdec_hw_irq_handler(int irq, void *priv)
struct mtk_jpegdec_comp_dev *jpeg = priv;
struct mtk_jpeg_dev *master_jpeg = jpeg->master_dev;

+ cancel_delayed_work(&jpeg->job_timeout_work);
+
irq_status = mtk_jpeg_dec_get_int_status(jpeg->reg_base);
dec_irq_ret = mtk_jpeg_dec_enum_result(irq_status);
if (dec_irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW)
@@ -533,6 +554,10 @@ static int mtk_jpegdec_hw_probe(struct platform_device *pdev)

dev->plat_dev = pdev;
dev->dev = &pdev->dev;
+
+ INIT_DELAYED_WORK(&dev->job_timeout_work,
+ mtk_jpegdec_timeout_work);
+
jpegdec_clk = &dev->jdec_clk;

jpegdec_clk->clk_num = devm_clk_bulk_get_all(&pdev->dev,
--
2.18.0