media: mtk-jpegdec: add jpegdec timeout func interface

Generalizes jpegdec timeout func interfaces to handle HW timeout.
Signed-off-by: Nkyrie wu <kyrie.wu@mediatek.com>
Signed-off-by: Nirui wang <irui.wang@mediatek.com>
Signed-off-by: NHans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h

@@ -165,6 +165,8 @@ struct mtk_jpegenc_comp_dev {
  * @master_dev:			mtk_jpeg_dev device
  * @jdec_clk:			mtk_jpegdec_clk
  * @jpegdec_irq:		jpeg decode irq num
+ * @job_timeout_work:		decode timeout workqueue
+ * @hw_param:			jpeg decode hw parameters
  */
 struct mtk_jpegdec_comp_dev {
 	struct device *dev;
@@ -173,6 +175,8 @@ struct mtk_jpegdec_comp_dev {
 	struct mtk_jpeg_dev *master_dev;
 	struct mtk_jpegdec_clk jdec_clk;
 	int jpegdec_irq;
+	struct delayed_work job_timeout_work;
+	struct mtk_jpeg_hw_param hw_param;
 };
 
 /**

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)
@@ -538,6 +559,9 @@ static int mtk_jpegdec_hw_probe(struct platform_device *pdev)
 			master_dev->dec_hw_dev[i] = NULL;
 	}
 
+	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,