diff mbox series

[v7,06/13] media: hantro: change hantro_codec_ops run prototype to return errors

Message ID 20210329065743.11961-7-benjamin.gaignard@collabora.com (mailing list archive)
State New
Headers show
Series Add HANTRO G2/HEVC decoder support for IMX8MQ | expand

Commit Message

Benjamin Gaignard March 29, 2021, 6:57 a.m. UTC
Change hantro_codec_ops run prototype from 'void' to 'int'.
This allow to cancel the job if an error occur while configuring
the hardware.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
version 5:
 - forward hantro_h264_dec_prepare_run() return value in case
   of error

 drivers/staging/media/hantro/hantro_drv.c     |  4 +++-
 .../staging/media/hantro/hantro_g1_h264_dec.c | 10 +++++++---
 .../media/hantro/hantro_g1_mpeg2_dec.c        |  4 +++-
 .../staging/media/hantro/hantro_g1_vp8_dec.c  |  6 ++++--
 .../staging/media/hantro/hantro_h1_jpeg_enc.c |  4 +++-
 drivers/staging/media/hantro/hantro_hw.h      | 19 ++++++++++---------
 .../media/hantro/rk3399_vpu_hw_jpeg_enc.c     |  4 +++-
 .../media/hantro/rk3399_vpu_hw_mpeg2_dec.c    |  4 +++-
 .../media/hantro/rk3399_vpu_hw_vp8_dec.c      |  6 ++++--
 9 files changed, 40 insertions(+), 21 deletions(-)

Comments

Ezequiel Garcia March 29, 2021, 7:27 p.m. UTC | #1
On Mon, 2021-03-29 at 08:57 +0200, Benjamin Gaignard wrote:
> Change hantro_codec_ops run prototype from 'void' to 'int'.
> This allow to cancel the job if an error occur while configuring
> the hardware.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>

Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>

> ---
> version 5:
>  - forward hantro_h264_dec_prepare_run() return value in case
>    of error
> 
>  drivers/staging/media/hantro/hantro_drv.c     |  4 +++-
>  .../staging/media/hantro/hantro_g1_h264_dec.c | 10 +++++++---
>  .../media/hantro/hantro_g1_mpeg2_dec.c        |  4 +++-
>  .../staging/media/hantro/hantro_g1_vp8_dec.c  |  6 ++++--
>  .../staging/media/hantro/hantro_h1_jpeg_enc.c |  4 +++-
>  drivers/staging/media/hantro/hantro_hw.h      | 19 ++++++++++---------
>  .../media/hantro/rk3399_vpu_hw_jpeg_enc.c     |  4 +++-
>  .../media/hantro/rk3399_vpu_hw_mpeg2_dec.c    |  4 +++-
>  .../media/hantro/rk3399_vpu_hw_vp8_dec.c      |  6 ++++--
>  9 files changed, 40 insertions(+), 21 deletions(-)
> 
> diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
> index 595e82a82728..02c5c2f1a88b 100644
> --- a/drivers/staging/media/hantro/hantro_drv.c
> +++ b/drivers/staging/media/hantro/hantro_drv.c
> @@ -161,7 +161,9 @@ static void device_run(void *priv)
>  
>         v4l2_m2m_buf_copy_metadata(src, dst, true);
>  
> -       ctx->codec_ops->run(ctx);
> +       if (ctx->codec_ops->run(ctx))
> +               goto err_cancel_job;
> +
>         return;
>  
>  err_cancel_job:
> diff --git a/drivers/staging/media/hantro/hantro_g1_h264_dec.c b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
> index 845bef73d218..5c792b7bcb79 100644
> --- a/drivers/staging/media/hantro/hantro_g1_h264_dec.c
> +++ b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
> @@ -273,13 +273,15 @@ static void set_buffers(struct hantro_ctx *ctx)
>         vdpu_write_relaxed(vpu, ctx->h264_dec.priv.dma, G1_REG_ADDR_QTABLE);
>  }
>  
> -void hantro_g1_h264_dec_run(struct hantro_ctx *ctx)
> +int hantro_g1_h264_dec_run(struct hantro_ctx *ctx)
>  {
>         struct hantro_dev *vpu = ctx->dev;
> +       int ret;
>  
>         /* Prepare the H264 decoder context. */
> -       if (hantro_h264_dec_prepare_run(ctx))
> -               return;
> +       ret = hantro_h264_dec_prepare_run(ctx);
> +       if (ret)
> +               return ret;
>  
>         /* Configure hardware registers. */
>         set_params(ctx);
> @@ -301,4 +303,6 @@ void hantro_g1_h264_dec_run(struct hantro_ctx *ctx)
>                            G1_REG_CONFIG_DEC_CLK_GATE_E,
>                            G1_REG_CONFIG);
>         vdpu_write(vpu, G1_REG_INTERRUPT_DEC_E, G1_REG_INTERRUPT);
> +
> +       return 0;
>  }
> diff --git a/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c b/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
> index 6386a3989bfe..5e8943d31dc5 100644
> --- a/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
> +++ b/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
> @@ -155,7 +155,7 @@ hantro_g1_mpeg2_dec_set_buffers(struct hantro_dev *vpu, struct hantro_ctx *ctx,
>         vdpu_write_relaxed(vpu, backward_addr, G1_REG_REFER3_BASE);
>  }
>  
> -void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
> +int hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
>  {
>         struct hantro_dev *vpu = ctx->dev;
>         struct vb2_v4l2_buffer *src_buf, *dst_buf;
> @@ -248,4 +248,6 @@ void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
>  
>         reg = G1_REG_DEC_E(1);
>         vdpu_write(vpu, reg, G1_SWREG(1));
> +
> +       return 0;
>  }
> diff --git a/drivers/staging/media/hantro/hantro_g1_vp8_dec.c b/drivers/staging/media/hantro/hantro_g1_vp8_dec.c
> index 57002ba70176..96622a7f8279 100644
> --- a/drivers/staging/media/hantro/hantro_g1_vp8_dec.c
> +++ b/drivers/staging/media/hantro/hantro_g1_vp8_dec.c
> @@ -425,7 +425,7 @@ static void cfg_buffers(struct hantro_ctx *ctx,
>         vdpu_write_relaxed(vpu, dst_dma, G1_REG_ADDR_DST);
>  }
>  
> -void hantro_g1_vp8_dec_run(struct hantro_ctx *ctx)
> +int hantro_g1_vp8_dec_run(struct hantro_ctx *ctx)
>  {
>         const struct v4l2_ctrl_vp8_frame *hdr;
>         struct hantro_dev *vpu = ctx->dev;
> @@ -438,7 +438,7 @@ void hantro_g1_vp8_dec_run(struct hantro_ctx *ctx)
>  
>         hdr = hantro_get_ctrl(ctx, V4L2_CID_STATELESS_VP8_FRAME);
>         if (WARN_ON(!hdr))
> -               return;
> +               return -EINVAL;
>  
>         /* Reset segment_map buffer in keyframe */
>         if (V4L2_VP8_FRAME_IS_KEY_FRAME(hdr) && ctx->vp8_dec.segment_map.cpu)
> @@ -498,4 +498,6 @@ void hantro_g1_vp8_dec_run(struct hantro_ctx *ctx)
>         hantro_end_prepare_run(ctx);
>  
>         vdpu_write(vpu, G1_REG_INTERRUPT_DEC_E, G1_REG_INTERRUPT);
> +
> +       return 0;
>  }
> diff --git a/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c b/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c
> index b88dc4ed06db..56cf261a8e95 100644
> --- a/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c
> +++ b/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c
> @@ -88,7 +88,7 @@ hantro_h1_jpeg_enc_set_qtable(struct hantro_dev *vpu,
>         }
>  }
>  
> -void hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx)
> +int hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx)
>  {
>         struct hantro_dev *vpu = ctx->dev;
>         struct vb2_v4l2_buffer *src_buf, *dst_buf;
> @@ -136,6 +136,8 @@ void hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx)
>         hantro_end_prepare_run(ctx);
>  
>         vepu_write(vpu, reg, H1_REG_ENC_CTRL);
> +
> +       return 0;
>  }
>  
>  void hantro_jpeg_enc_done(struct hantro_ctx *ctx)
> diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
> index 13a6e7113001..a76852966578 100644
> --- a/drivers/staging/media/hantro/hantro_hw.h
> +++ b/drivers/staging/media/hantro/hantro_hw.h
> @@ -126,14 +126,15 @@ struct hantro_postproc_ctx {
>   *             Optional and called from process context.
>   * @run:       Start single {en,de)coding job. Called from atomic context
>   *             to indicate that a pair of buffers is ready and the hardware
> - *             should be programmed and started.
> + *             should be programmed and started. Returns zero if OK, a
> + *             negative value in error cases.
>   * @done:      Read back processing results and additional data from hardware.
>   * @reset:     Reset the hardware in case of a timeout.
>   */
>  struct hantro_codec_ops {
>         int (*init)(struct hantro_ctx *ctx);
>         void (*exit)(struct hantro_ctx *ctx);
> -       void (*run)(struct hantro_ctx *ctx);
> +       int (*run)(struct hantro_ctx *ctx);
>         void (*done)(struct hantro_ctx *ctx);
>         void (*reset)(struct hantro_ctx *ctx);
>  };
> @@ -164,8 +165,8 @@ void hantro_irq_done(struct hantro_dev *vpu,
>  void hantro_start_prepare_run(struct hantro_ctx *ctx);
>  void hantro_end_prepare_run(struct hantro_ctx *ctx);
>  
> -void hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx);
> -void rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx);
> +int hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx);
> +int rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx);
>  int hantro_jpeg_enc_init(struct hantro_ctx *ctx);
>  void hantro_jpeg_enc_exit(struct hantro_ctx *ctx);
>  void hantro_jpeg_enc_done(struct hantro_ctx *ctx);
> @@ -173,7 +174,7 @@ void hantro_jpeg_enc_done(struct hantro_ctx *ctx);
>  dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
>                                    unsigned int dpb_idx);
>  int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx);
> -void hantro_g1_h264_dec_run(struct hantro_ctx *ctx);
> +int hantro_g1_h264_dec_run(struct hantro_ctx *ctx);
>  int hantro_h264_dec_init(struct hantro_ctx *ctx);
>  void hantro_h264_dec_exit(struct hantro_ctx *ctx);
>  
> @@ -204,15 +205,15 @@ hantro_h264_mv_size(unsigned int width, unsigned int height)
>         return 64 * MB_WIDTH(width) * MB_WIDTH(height) + 32;
>  }
>  
> -void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx);
> -void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx);
> +int hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx);
> +int rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx);
>  void hantro_mpeg2_dec_copy_qtable(u8 *qtable,
>         const struct v4l2_ctrl_mpeg2_quantization *ctrl);
>  int hantro_mpeg2_dec_init(struct hantro_ctx *ctx);
>  void hantro_mpeg2_dec_exit(struct hantro_ctx *ctx);
>  
> -void hantro_g1_vp8_dec_run(struct hantro_ctx *ctx);
> -void rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx);
> +int hantro_g1_vp8_dec_run(struct hantro_ctx *ctx);
> +int rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx);
>  int hantro_vp8_dec_init(struct hantro_ctx *ctx);
>  void hantro_vp8_dec_exit(struct hantro_ctx *ctx);
>  void hantro_vp8_prob_update(struct hantro_ctx *ctx,
> diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw_jpeg_enc.c b/drivers/staging/media/hantro/rk3399_vpu_hw_jpeg_enc.c
> index 3498e6124acd..3a27ebef4f38 100644
> --- a/drivers/staging/media/hantro/rk3399_vpu_hw_jpeg_enc.c
> +++ b/drivers/staging/media/hantro/rk3399_vpu_hw_jpeg_enc.c
> @@ -118,7 +118,7 @@ rk3399_vpu_jpeg_enc_set_qtable(struct hantro_dev *vpu,
>         }
>  }
>  
> -void rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx)
> +int rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx)
>  {
>         struct hantro_dev *vpu = ctx->dev;
>         struct vb2_v4l2_buffer *src_buf, *dst_buf;
> @@ -168,4 +168,6 @@ void rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx)
>         /* Kick the watchdog and start encoding */
>         hantro_end_prepare_run(ctx);
>         vepu_write(vpu, reg, VEPU_REG_ENCODE_START);
> +
> +       return 0;
>  }
> diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c b/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
> index f610fa5b4335..4bd3080abbc1 100644
> --- a/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
> +++ b/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
> @@ -157,7 +157,7 @@ rk3399_vpu_mpeg2_dec_set_buffers(struct hantro_dev *vpu,
>         vdpu_write_relaxed(vpu, backward_addr, VDPU_REG_REFER3_BASE);
>  }
>  
> -void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
> +int rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
>  {
>         struct hantro_dev *vpu = ctx->dev;
>         struct vb2_v4l2_buffer *src_buf, *dst_buf;
> @@ -254,4 +254,6 @@ void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
>  
>         reg = vdpu_read(vpu, VDPU_SWREG(57)) | VDPU_REG_DEC_E(1);
>         vdpu_write(vpu, reg, VDPU_SWREG(57));
> +
> +       return 0;
>  }
> diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c b/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c
> index 8661a3cc1e6b..e5d20fe5b007 100644
> --- a/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c
> +++ b/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c
> @@ -503,7 +503,7 @@ static void cfg_buffers(struct hantro_ctx *ctx,
>         vdpu_write_relaxed(vpu, dst_dma, VDPU_REG_ADDR_DST);
>  }
>  
> -void rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx)
> +int rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx)
>  {
>         const struct v4l2_ctrl_vp8_frame *hdr;
>         struct hantro_dev *vpu = ctx->dev;
> @@ -516,7 +516,7 @@ void rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx)
>  
>         hdr = hantro_get_ctrl(ctx, V4L2_CID_STATELESS_VP8_FRAME);
>         if (WARN_ON(!hdr))
> -               return;
> +               return -EINVAL;
>  
>         /* Reset segment_map buffer in keyframe */
>         if (V4L2_VP8_FRAME_IS_KEY_FRAME(hdr) && ctx->vp8_dec.segment_map.cpu)
> @@ -589,4 +589,6 @@ void rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx)
>         hantro_end_prepare_run(ctx);
>  
>         hantro_reg_write(vpu, &vp8_dec_start_dec, 1);
> +
> +       return 0;
>  }
diff mbox series

Patch

diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
index 595e82a82728..02c5c2f1a88b 100644
--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c
@@ -161,7 +161,9 @@  static void device_run(void *priv)
 
 	v4l2_m2m_buf_copy_metadata(src, dst, true);
 
-	ctx->codec_ops->run(ctx);
+	if (ctx->codec_ops->run(ctx))
+		goto err_cancel_job;
+
 	return;
 
 err_cancel_job:
diff --git a/drivers/staging/media/hantro/hantro_g1_h264_dec.c b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
index 845bef73d218..5c792b7bcb79 100644
--- a/drivers/staging/media/hantro/hantro_g1_h264_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
@@ -273,13 +273,15 @@  static void set_buffers(struct hantro_ctx *ctx)
 	vdpu_write_relaxed(vpu, ctx->h264_dec.priv.dma, G1_REG_ADDR_QTABLE);
 }
 
-void hantro_g1_h264_dec_run(struct hantro_ctx *ctx)
+int hantro_g1_h264_dec_run(struct hantro_ctx *ctx)
 {
 	struct hantro_dev *vpu = ctx->dev;
+	int ret;
 
 	/* Prepare the H264 decoder context. */
-	if (hantro_h264_dec_prepare_run(ctx))
-		return;
+	ret = hantro_h264_dec_prepare_run(ctx);
+	if (ret)
+		return ret;
 
 	/* Configure hardware registers. */
 	set_params(ctx);
@@ -301,4 +303,6 @@  void hantro_g1_h264_dec_run(struct hantro_ctx *ctx)
 			   G1_REG_CONFIG_DEC_CLK_GATE_E,
 			   G1_REG_CONFIG);
 	vdpu_write(vpu, G1_REG_INTERRUPT_DEC_E, G1_REG_INTERRUPT);
+
+	return 0;
 }
diff --git a/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c b/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
index 6386a3989bfe..5e8943d31dc5 100644
--- a/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
@@ -155,7 +155,7 @@  hantro_g1_mpeg2_dec_set_buffers(struct hantro_dev *vpu, struct hantro_ctx *ctx,
 	vdpu_write_relaxed(vpu, backward_addr, G1_REG_REFER3_BASE);
 }
 
-void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
+int hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
 {
 	struct hantro_dev *vpu = ctx->dev;
 	struct vb2_v4l2_buffer *src_buf, *dst_buf;
@@ -248,4 +248,6 @@  void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
 
 	reg = G1_REG_DEC_E(1);
 	vdpu_write(vpu, reg, G1_SWREG(1));
+
+	return 0;
 }
diff --git a/drivers/staging/media/hantro/hantro_g1_vp8_dec.c b/drivers/staging/media/hantro/hantro_g1_vp8_dec.c
index 57002ba70176..96622a7f8279 100644
--- a/drivers/staging/media/hantro/hantro_g1_vp8_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_vp8_dec.c
@@ -425,7 +425,7 @@  static void cfg_buffers(struct hantro_ctx *ctx,
 	vdpu_write_relaxed(vpu, dst_dma, G1_REG_ADDR_DST);
 }
 
-void hantro_g1_vp8_dec_run(struct hantro_ctx *ctx)
+int hantro_g1_vp8_dec_run(struct hantro_ctx *ctx)
 {
 	const struct v4l2_ctrl_vp8_frame *hdr;
 	struct hantro_dev *vpu = ctx->dev;
@@ -438,7 +438,7 @@  void hantro_g1_vp8_dec_run(struct hantro_ctx *ctx)
 
 	hdr = hantro_get_ctrl(ctx, V4L2_CID_STATELESS_VP8_FRAME);
 	if (WARN_ON(!hdr))
-		return;
+		return -EINVAL;
 
 	/* Reset segment_map buffer in keyframe */
 	if (V4L2_VP8_FRAME_IS_KEY_FRAME(hdr) && ctx->vp8_dec.segment_map.cpu)
@@ -498,4 +498,6 @@  void hantro_g1_vp8_dec_run(struct hantro_ctx *ctx)
 	hantro_end_prepare_run(ctx);
 
 	vdpu_write(vpu, G1_REG_INTERRUPT_DEC_E, G1_REG_INTERRUPT);
+
+	return 0;
 }
diff --git a/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c b/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c
index b88dc4ed06db..56cf261a8e95 100644
--- a/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c
+++ b/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c
@@ -88,7 +88,7 @@  hantro_h1_jpeg_enc_set_qtable(struct hantro_dev *vpu,
 	}
 }
 
-void hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx)
+int hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx)
 {
 	struct hantro_dev *vpu = ctx->dev;
 	struct vb2_v4l2_buffer *src_buf, *dst_buf;
@@ -136,6 +136,8 @@  void hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx)
 	hantro_end_prepare_run(ctx);
 
 	vepu_write(vpu, reg, H1_REG_ENC_CTRL);
+
+	return 0;
 }
 
 void hantro_jpeg_enc_done(struct hantro_ctx *ctx)
diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
index 13a6e7113001..a76852966578 100644
--- a/drivers/staging/media/hantro/hantro_hw.h
+++ b/drivers/staging/media/hantro/hantro_hw.h
@@ -126,14 +126,15 @@  struct hantro_postproc_ctx {
  *		Optional and called from process context.
  * @run:	Start single {en,de)coding job. Called from atomic context
  *		to indicate that a pair of buffers is ready and the hardware
- *		should be programmed and started.
+ *		should be programmed and started. Returns zero if OK, a
+ *		negative value in error cases.
  * @done:	Read back processing results and additional data from hardware.
  * @reset:	Reset the hardware in case of a timeout.
  */
 struct hantro_codec_ops {
 	int (*init)(struct hantro_ctx *ctx);
 	void (*exit)(struct hantro_ctx *ctx);
-	void (*run)(struct hantro_ctx *ctx);
+	int (*run)(struct hantro_ctx *ctx);
 	void (*done)(struct hantro_ctx *ctx);
 	void (*reset)(struct hantro_ctx *ctx);
 };
@@ -164,8 +165,8 @@  void hantro_irq_done(struct hantro_dev *vpu,
 void hantro_start_prepare_run(struct hantro_ctx *ctx);
 void hantro_end_prepare_run(struct hantro_ctx *ctx);
 
-void hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx);
-void rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx);
+int hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx);
+int rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx);
 int hantro_jpeg_enc_init(struct hantro_ctx *ctx);
 void hantro_jpeg_enc_exit(struct hantro_ctx *ctx);
 void hantro_jpeg_enc_done(struct hantro_ctx *ctx);
@@ -173,7 +174,7 @@  void hantro_jpeg_enc_done(struct hantro_ctx *ctx);
 dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
 				   unsigned int dpb_idx);
 int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx);
-void hantro_g1_h264_dec_run(struct hantro_ctx *ctx);
+int hantro_g1_h264_dec_run(struct hantro_ctx *ctx);
 int hantro_h264_dec_init(struct hantro_ctx *ctx);
 void hantro_h264_dec_exit(struct hantro_ctx *ctx);
 
@@ -204,15 +205,15 @@  hantro_h264_mv_size(unsigned int width, unsigned int height)
 	return 64 * MB_WIDTH(width) * MB_WIDTH(height) + 32;
 }
 
-void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx);
-void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx);
+int hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx);
+int rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx);
 void hantro_mpeg2_dec_copy_qtable(u8 *qtable,
 	const struct v4l2_ctrl_mpeg2_quantization *ctrl);
 int hantro_mpeg2_dec_init(struct hantro_ctx *ctx);
 void hantro_mpeg2_dec_exit(struct hantro_ctx *ctx);
 
-void hantro_g1_vp8_dec_run(struct hantro_ctx *ctx);
-void rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx);
+int hantro_g1_vp8_dec_run(struct hantro_ctx *ctx);
+int rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx);
 int hantro_vp8_dec_init(struct hantro_ctx *ctx);
 void hantro_vp8_dec_exit(struct hantro_ctx *ctx);
 void hantro_vp8_prob_update(struct hantro_ctx *ctx,
diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw_jpeg_enc.c b/drivers/staging/media/hantro/rk3399_vpu_hw_jpeg_enc.c
index 3498e6124acd..3a27ebef4f38 100644
--- a/drivers/staging/media/hantro/rk3399_vpu_hw_jpeg_enc.c
+++ b/drivers/staging/media/hantro/rk3399_vpu_hw_jpeg_enc.c
@@ -118,7 +118,7 @@  rk3399_vpu_jpeg_enc_set_qtable(struct hantro_dev *vpu,
 	}
 }
 
-void rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx)
+int rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx)
 {
 	struct hantro_dev *vpu = ctx->dev;
 	struct vb2_v4l2_buffer *src_buf, *dst_buf;
@@ -168,4 +168,6 @@  void rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx)
 	/* Kick the watchdog and start encoding */
 	hantro_end_prepare_run(ctx);
 	vepu_write(vpu, reg, VEPU_REG_ENCODE_START);
+
+	return 0;
 }
diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c b/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
index f610fa5b4335..4bd3080abbc1 100644
--- a/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
+++ b/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
@@ -157,7 +157,7 @@  rk3399_vpu_mpeg2_dec_set_buffers(struct hantro_dev *vpu,
 	vdpu_write_relaxed(vpu, backward_addr, VDPU_REG_REFER3_BASE);
 }
 
-void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
+int rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
 {
 	struct hantro_dev *vpu = ctx->dev;
 	struct vb2_v4l2_buffer *src_buf, *dst_buf;
@@ -254,4 +254,6 @@  void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
 
 	reg = vdpu_read(vpu, VDPU_SWREG(57)) | VDPU_REG_DEC_E(1);
 	vdpu_write(vpu, reg, VDPU_SWREG(57));
+
+	return 0;
 }
diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c b/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c
index 8661a3cc1e6b..e5d20fe5b007 100644
--- a/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c
+++ b/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c
@@ -503,7 +503,7 @@  static void cfg_buffers(struct hantro_ctx *ctx,
 	vdpu_write_relaxed(vpu, dst_dma, VDPU_REG_ADDR_DST);
 }
 
-void rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx)
+int rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx)
 {
 	const struct v4l2_ctrl_vp8_frame *hdr;
 	struct hantro_dev *vpu = ctx->dev;
@@ -516,7 +516,7 @@  void rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx)
 
 	hdr = hantro_get_ctrl(ctx, V4L2_CID_STATELESS_VP8_FRAME);
 	if (WARN_ON(!hdr))
-		return;
+		return -EINVAL;
 
 	/* Reset segment_map buffer in keyframe */
 	if (V4L2_VP8_FRAME_IS_KEY_FRAME(hdr) && ctx->vp8_dec.segment_map.cpu)
@@ -589,4 +589,6 @@  void rk3399_vpu_vp8_dec_run(struct hantro_ctx *ctx)
 	hantro_end_prepare_run(ctx);
 
 	hantro_reg_write(vpu, &vp8_dec_start_dec, 1);
+
+	return 0;
 }