diff mbox series

[v4,80/80] drm/omap: dsi: fix DCS_CMD_ENABLE

Message ID 20201124124538.660710-81-tomi.valkeinen@ti.com (mailing list archive)
State New
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
We only need to set VC_CTRL:DCS_CMD_ENABLE for command mode panels when
the HW has DSI_QUIRK_DCS_CMD_CONFIG_VC quirk. The old code did this
right by accident, but now we set DCS_CMD_ENABLE for video mode panels
too.

Fix this by skipping the set for video mode.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/gpu/drm/omapdrm/dss/dsi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Laurent Pinchart Dec. 1, 2020, 12:40 a.m. UTC | #1
Hi Tomi,

Thank you for the patch.

On Tue, Nov 24, 2020 at 02:45:38PM +0200, Tomi Valkeinen wrote:
> We only need to set VC_CTRL:DCS_CMD_ENABLE for command mode panels when
> the HW has DSI_QUIRK_DCS_CMD_CONFIG_VC quirk. The old code did this
> right by accident, but now we set DCS_CMD_ENABLE for video mode panels
> too.
> 
> Fix this by skipping the set for video mode.
> 
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

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

> ---
>  drivers/gpu/drm/omapdrm/dss/dsi.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
> index ffecacd7350a..d52bef0c7aa2 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dsi.c
> +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
> @@ -3401,7 +3401,8 @@ static void dsi_setup_dsi_vcs(struct dsi_data *dsi)
>  	REG_FLD_MOD(dsi, DSI_VC_CTRL(VC_VIDEO), 1, 1, 1); /* SOURCE_VP */
>  	dsi->vc[VC_VIDEO].source = DSI_VC_SOURCE_VP;
>  
> -	if (dsi->data->quirks & DSI_QUIRK_DCS_CMD_CONFIG_VC)
> +	if ((dsi->data->quirks & DSI_QUIRK_DCS_CMD_CONFIG_VC) &&
> +	    !(dsi->dsidev->mode_flags & MIPI_DSI_MODE_VIDEO))
>  		REG_FLD_MOD(dsi, DSI_VC_CTRL(VC_VIDEO), 1, 30, 30); /* DCS_CMD_ENABLE */
>  
>  	dsi_vc_enable(dsi, VC_CMD, 1);
diff mbox series

Patch

diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
index ffecacd7350a..d52bef0c7aa2 100644
--- a/drivers/gpu/drm/omapdrm/dss/dsi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
@@ -3401,7 +3401,8 @@  static void dsi_setup_dsi_vcs(struct dsi_data *dsi)
 	REG_FLD_MOD(dsi, DSI_VC_CTRL(VC_VIDEO), 1, 1, 1); /* SOURCE_VP */
 	dsi->vc[VC_VIDEO].source = DSI_VC_SOURCE_VP;
 
-	if (dsi->data->quirks & DSI_QUIRK_DCS_CMD_CONFIG_VC)
+	if ((dsi->data->quirks & DSI_QUIRK_DCS_CMD_CONFIG_VC) &&
+	    !(dsi->dsidev->mode_flags & MIPI_DSI_MODE_VIDEO))
 		REG_FLD_MOD(dsi, DSI_VC_CTRL(VC_VIDEO), 1, 30, 30); /* DCS_CMD_ENABLE */
 
 	dsi_vc_enable(dsi, VC_CMD, 1);