diff mbox series

[v4,77/80] drm/omap: dsi: split video mode enable/disable into separate func

Message ID 20201124124538.660710-78-tomi.valkeinen@ti.com (mailing list archive)
State New, archived
Headers show
Series Convert DSI code to use drm_mipi_dsi and drm_panel | expand

Commit Message

Tomi Valkeinen Nov. 24, 2020, 12:45 p.m. UTC 
Clean up the code by separating video-mode enable/disable code into
functions of their own.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/gpu/drm/omapdrm/dss/dsi.c | 101 +++++++++++++++++-------------
 1 file changed, 57 insertions(+), 44 deletions(-)

Comments

Laurent Pinchart Dec. 1, 2020, 12:37 a.m. UTC | #1 
Hi Tomi,

Thank you for the patch.

On Tue, Nov 24, 2020 at 02:45:35PM +0200, Tomi Valkeinen wrote:
> Clean up the code by separating video-mode enable/disable code into
> functions of their own.
> 
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
>  drivers/gpu/drm/omapdrm/dss/dsi.c | 101 +++++++++++++++++-------------
>  1 file changed, 57 insertions(+), 44 deletions(-)
> 
> diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
> index 27d0d119668b..6d20245495ac 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dsi.c
> +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
> @@ -3207,12 +3207,61 @@ static int dsi_configure_pins(struct dsi_data *dsi,
>  	return 0;
>  }
>  
> -static void dsi_enable_video_output(struct omap_dss_device *dssdev, int vc)
> +static int dsi_enable_video_mode(struct dsi_data *dsi, int vc)
>  {
> -	struct dsi_data *dsi = to_dsi_data(dssdev);
>  	int bpp = mipi_dsi_pixel_format_to_bpp(dsi->pix_fmt);
>  	u8 data_type;
>  	u16 word_count;
> +
> +	switch (dsi->pix_fmt) {
> +	case MIPI_DSI_FMT_RGB888:
> +		data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24;
> +		break;
> +	case MIPI_DSI_FMT_RGB666:
> +		data_type = MIPI_DSI_PIXEL_STREAM_3BYTE_18;
> +		break;
> +	case MIPI_DSI_FMT_RGB666_PACKED:
> +		data_type = MIPI_DSI_PACKED_PIXEL_STREAM_18;
> +		break;
> +	case MIPI_DSI_FMT_RGB565:
> +		data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16;
> +		break;
> +	default:
> +		return -EINVAL;
> +	}
> +
> +	dsi_if_enable(dsi, false);
> +	dsi_vc_enable(dsi, vc, false);
> +
> +	/* MODE, 1 = video mode */
> +	REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 1, 4, 4);
> +
> +	word_count = DIV_ROUND_UP(dsi->vm.hactive * bpp, 8);
> +
> +	dsi_vc_write_long_header(dsi, vc, dsi->dsidev->channel, data_type,
> +			word_count, 0);
> +
> +	dsi_vc_enable(dsi, vc, true);
> +	dsi_if_enable(dsi, true);
> +
> +	return 0;
> +}
> +
> +static void dsi_disable_video_mode(struct dsi_data *dsi, int vc)
> +{
> +	dsi_if_enable(dsi, false);
> +	dsi_vc_enable(dsi, vc, false);
> +
> +	/* MODE, 0 = command mode */
> +	REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 0, 4, 4);
> +
> +	dsi_vc_enable(dsi, vc, true);
> +	dsi_if_enable(dsi, true);
> +}
> +
> +static void dsi_enable_video_output(struct omap_dss_device *dssdev, int vc)
> +{
> +	struct dsi_data *dsi = to_dsi_data(dssdev);
>  	int r;
>  
>  	r = dsi_init_dispc(dsi);
> @@ -3222,37 +3271,9 @@ static void dsi_enable_video_output(struct omap_dss_device *dssdev, int vc)
>  	}
>  
>  	if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) {
> -		switch (dsi->pix_fmt) {
> -		case MIPI_DSI_FMT_RGB888:
> -			data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24;
> -			break;
> -		case MIPI_DSI_FMT_RGB666:
> -			data_type = MIPI_DSI_PIXEL_STREAM_3BYTE_18;
> -			break;
> -		case MIPI_DSI_FMT_RGB666_PACKED:
> -			data_type = MIPI_DSI_PACKED_PIXEL_STREAM_18;
> -			break;
> -		case MIPI_DSI_FMT_RGB565:
> -			data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16;
> -			break;
> -		default:
> -			r = -EINVAL;
> -			goto err_pix_fmt;
> -		}
> -
> -		dsi_if_enable(dsi, false);
> -		dsi_vc_enable(dsi, vc, false);
> -
> -		/* MODE, 1 = video mode */
> -		REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 1, 4, 4);
> -
> -		word_count = DIV_ROUND_UP(dsi->vm.hactive * bpp, 8);
> -
> -		dsi_vc_write_long_header(dsi, vc, dsi->dsidev->channel, data_type,
> -				word_count, 0);
> -
> -		dsi_vc_enable(dsi, vc, true);
> -		dsi_if_enable(dsi, true);
> +		r = dsi_enable_video_mode(dsi, vc);
> +		if (r)
> +			goto err_video_mode;
>  	}
>  
>  	r = dss_mgr_enable(&dsi->output);
> @@ -3266,7 +3287,7 @@ static void dsi_enable_video_output(struct omap_dss_device *dssdev, int vc)
>  		dsi_if_enable(dsi, false);
>  		dsi_vc_enable(dsi, vc, false);
>  	}
> -err_pix_fmt:
> +err_video_mode:
>  	dsi_uninit_dispc(dsi);
>  	dev_err(dsi->dev, "failed to enable DSI encoder!\n");
>  	return;
> @@ -3276,16 +3297,8 @@ static void dsi_disable_video_output(struct omap_dss_device *dssdev, int vc)
>  {
>  	struct dsi_data *dsi = to_dsi_data(dssdev);
>  
> -	if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) {
> -		dsi_if_enable(dsi, false);
> -		dsi_vc_enable(dsi, vc, false);
> -
> -		/* MODE, 0 = command mode */
> -		REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 0, 4, 4);
> -
> -		dsi_vc_enable(dsi, vc, true);
> -		dsi_if_enable(dsi, true);
> -	}
> +	if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE)
> +		dsi_disable_video_mode(dsi, vc);
>  
>  	dss_mgr_disable(&dsi->output);
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
index 27d0d119668b..6d20245495ac 100644
--- a/drivers/gpu/drm/omapdrm/dss/dsi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
@@ -3207,12 +3207,61 @@  static int dsi_configure_pins(struct dsi_data *dsi,
 	return 0;
 }
 
-static void dsi_enable_video_output(struct omap_dss_device *dssdev, int vc)
+static int dsi_enable_video_mode(struct dsi_data *dsi, int vc)
 {
-	struct dsi_data *dsi = to_dsi_data(dssdev);
 	int bpp = mipi_dsi_pixel_format_to_bpp(dsi->pix_fmt);
 	u8 data_type;
 	u16 word_count;
+
+	switch (dsi->pix_fmt) {
+	case MIPI_DSI_FMT_RGB888:
+		data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24;
+		break;
+	case MIPI_DSI_FMT_RGB666:
+		data_type = MIPI_DSI_PIXEL_STREAM_3BYTE_18;
+		break;
+	case MIPI_DSI_FMT_RGB666_PACKED:
+		data_type = MIPI_DSI_PACKED_PIXEL_STREAM_18;
+		break;
+	case MIPI_DSI_FMT_RGB565:
+		data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	dsi_if_enable(dsi, false);
+	dsi_vc_enable(dsi, vc, false);
+
+	/* MODE, 1 = video mode */
+	REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 1, 4, 4);
+
+	word_count = DIV_ROUND_UP(dsi->vm.hactive * bpp, 8);
+
+	dsi_vc_write_long_header(dsi, vc, dsi->dsidev->channel, data_type,
+			word_count, 0);
+
+	dsi_vc_enable(dsi, vc, true);
+	dsi_if_enable(dsi, true);
+
+	return 0;
+}
+
+static void dsi_disable_video_mode(struct dsi_data *dsi, int vc)
+{
+	dsi_if_enable(dsi, false);
+	dsi_vc_enable(dsi, vc, false);
+
+	/* MODE, 0 = command mode */
+	REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 0, 4, 4);
+
+	dsi_vc_enable(dsi, vc, true);
+	dsi_if_enable(dsi, true);
+}
+
+static void dsi_enable_video_output(struct omap_dss_device *dssdev, int vc)
+{
+	struct dsi_data *dsi = to_dsi_data(dssdev);
 	int r;
 
 	r = dsi_init_dispc(dsi);
@@ -3222,37 +3271,9 @@  static void dsi_enable_video_output(struct omap_dss_device *dssdev, int vc)
 	}
 
 	if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) {
-		switch (dsi->pix_fmt) {
-		case MIPI_DSI_FMT_RGB888:
-			data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24;
-			break;
-		case MIPI_DSI_FMT_RGB666:
-			data_type = MIPI_DSI_PIXEL_STREAM_3BYTE_18;
-			break;
-		case MIPI_DSI_FMT_RGB666_PACKED:
-			data_type = MIPI_DSI_PACKED_PIXEL_STREAM_18;
-			break;
-		case MIPI_DSI_FMT_RGB565:
-			data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16;
-			break;
-		default:
-			r = -EINVAL;
-			goto err_pix_fmt;
-		}
-
-		dsi_if_enable(dsi, false);
-		dsi_vc_enable(dsi, vc, false);
-
-		/* MODE, 1 = video mode */
-		REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 1, 4, 4);
-
-		word_count = DIV_ROUND_UP(dsi->vm.hactive * bpp, 8);
-
-		dsi_vc_write_long_header(dsi, vc, dsi->dsidev->channel, data_type,
-				word_count, 0);
-
-		dsi_vc_enable(dsi, vc, true);
-		dsi_if_enable(dsi, true);
+		r = dsi_enable_video_mode(dsi, vc);
+		if (r)
+			goto err_video_mode;
 	}
 
 	r = dss_mgr_enable(&dsi->output);
@@ -3266,7 +3287,7 @@  static void dsi_enable_video_output(struct omap_dss_device *dssdev, int vc)
 		dsi_if_enable(dsi, false);
 		dsi_vc_enable(dsi, vc, false);
 	}
-err_pix_fmt:
+err_video_mode:
 	dsi_uninit_dispc(dsi);
 	dev_err(dsi->dev, "failed to enable DSI encoder!\n");
 	return;
@@ -3276,16 +3297,8 @@  static void dsi_disable_video_output(struct omap_dss_device *dssdev, int vc)
 {
 	struct dsi_data *dsi = to_dsi_data(dssdev);
 
-	if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) {
-		dsi_if_enable(dsi, false);
-		dsi_vc_enable(dsi, vc, false);
-
-		/* MODE, 0 = command mode */
-		REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 0, 4, 4);
-
-		dsi_vc_enable(dsi, vc, true);
-		dsi_if_enable(dsi, true);
-	}
+	if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE)
+		dsi_disable_video_mode(dsi, vc);
 
 	dss_mgr_disable(&dsi->output);