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drm: xlnx: zynqmp_dpsub: Add connected live layer helper

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Add a helper function capturing the first connected live display layer
discovery logic.

Signed-off-by: Anatoliy Klymenko <anatoliy.klymenko@amd.com>
Reviewed-by: Tomi Valkeinen <tomi.valkainen@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240416-dp-live-fmt-v4-3-c7f379b7168e@amd.com
This commit is contained in:
Anatoliy Klymenko 2024-04-16 13:31:38 -07:00 committed by Tomi Valkeinen
parent 8628274101
commit 2e03666cbd
1 changed files with 23 additions and 14 deletions
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37
drivers/gpu/drm/xlnx/zynqmp_dp.c
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@ -1276,28 +1276,40 @@ static void zynqmp_dp_encoder_mode_set_stream(struct zynqmp_dp *dp,
* DISP Configuration
*/
/**
* zynqmp_dp_disp_connected_live_layer - Return the first connected live layer
* @dp: DisplayPort IP core structure
*
* Return: The first connected live display layer or NULL if none of the live
* layers are connected.
*/
static struct zynqmp_disp_layer *
zynqmp_dp_disp_connected_live_layer(struct zynqmp_dp *dp)
{
if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_VIDEO))
return dp->dpsub->layers[ZYNQMP_DPSUB_LAYER_VID];
else if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_GFX))
return dp->dpsub->layers[ZYNQMP_DPSUB_LAYER_GFX];
else
return NULL;
}
static void zynqmp_dp_disp_enable(struct zynqmp_dp *dp,
struct drm_bridge_state *old_bridge_state)
{
enum zynqmp_dpsub_layer_id layer_id;
struct zynqmp_disp_layer *layer;
const struct drm_format_info *info;
if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_VIDEO))
layer_id = ZYNQMP_DPSUB_LAYER_VID;
else if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_GFX))
layer_id = ZYNQMP_DPSUB_LAYER_GFX;
else
layer = zynqmp_dp_disp_connected_live_layer(dp);
if (!layer)
return;
layer = dp->dpsub->layers[layer_id];
/* TODO: Make the format configurable. */
info = drm_format_info(DRM_FORMAT_YUV422);
zynqmp_disp_layer_set_format(layer, info);
zynqmp_disp_layer_enable(layer);
if (layer_id == ZYNQMP_DPSUB_LAYER_GFX)
if (layer == dp->dpsub->layers[ZYNQMP_DPSUB_LAYER_GFX])
zynqmp_disp_blend_set_global_alpha(dp->dpsub->disp, true, 255);
else
zynqmp_disp_blend_set_global_alpha(dp->dpsub->disp, false, 0);
@ -1310,11 +1322,8 @@ static void zynqmp_dp_disp_disable(struct zynqmp_dp *dp,
{
struct zynqmp_disp_layer *layer;
if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_VIDEO))
layer = dp->dpsub->layers[ZYNQMP_DPSUB_LAYER_VID];
else if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_GFX))
layer = dp->dpsub->layers[ZYNQMP_DPSUB_LAYER_GFX];
else
layer = zynqmp_dp_disp_connected_live_layer(dp);
if (!layer)
return;
zynqmp_disp_disable(dp->dpsub->disp);