[V2,4/7] media: mtk-jpegdec: add jpegdec timeout func interface

[kyrie.wu]

From: kyrie wu <kyrie.wu at mediatek.com>

Generalizes jpegdec timeout func interfaces to handle HW timeout.

Signed-off-by: kyrie wu <kyrie.wu at mediatek.com>
---
 .../media/platform/mtk-jpeg/mtk_jpeg_core.h   |  2 ++
 .../media/platform/mtk-jpeg/mtk_jpeg_dec_hw.c | 25 ++++++++++++++++++-
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
index de8dd51dfb94..1c75ce45f89a 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
@@ -173,6 +173,8 @@ 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/mtk-jpeg/mtk_jpeg_dec_hw.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_dec_hw.c
index e89ca51555ab..170018e26d49 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_dec_hw.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_dec_hw.c
@@ -440,6 +440,24 @@ 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;
+
+	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 +471,8 @@ 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)
@@ -531,8 +551,11 @@ static int mtk_jpegdec_hw_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	dev->plat_dev = pdev;
-	jpegdec_clk = &dev->jdec_clk;
 
+	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,
 						     &jpegdec_clk->clks);
 	if (jpegdec_clk->clk_num < 0)
-- 
2.18.0