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drm/omap: Reverse direction of DSS device (dis)connect operations

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The omapdrm and omapdss drivers are architectured based on display
pipelines made of multiple components handled from sink (display) to
source (DSS output). This is incompatible with the DRM bridge and panel
APIs that handle components from source to sink.

To reconcile the omapdrm and omapdss drivers with the DRM bridge and
panel model, we need to reverse the direction of the DSS device
operations. Start with the connect and disconnect operations.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Laurent Pinchart
2018-03-04 23:42:36 +02:00
committed by Tomi Valkeinen
parent 2ee767922e
commit 511afb44d7
24 changed files with 239 additions and 432 deletions
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34
drivers/gpu/drm/omapdrm/displays/encoder-tfp410.c
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@@ -27,36 +27,16 @@ struct panel_drv_data {
#define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
static int tfp410_connect(struct omap_dss_device *dssdev,
struct omap_dss_device *dst)
static int tfp410_connect(struct omap_dss_device *src,
struct omap_dss_device *dst)
{
struct omap_dss_device *src;
int r;
src = omapdss_of_find_connected_device(dssdev->dev->of_node, 0);
if (IS_ERR(src)) {
dev_err(dssdev->dev, "failed to find video source\n");
return PTR_ERR(src);
}
r = omapdss_device_connect(dssdev->dss, src, dssdev);
if (r) {
omapdss_device_put(src);
return r;
}
return 0;
return omapdss_device_connect(dst->dss, dst, dst->next);
}
static void tfp410_disconnect(struct omap_dss_device *dssdev,
struct omap_dss_device *dst)
static void tfp410_disconnect(struct omap_dss_device *src,
struct omap_dss_device *dst)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *src = dssdev->src;
omapdss_device_disconnect(src, &ddata->dssdev);
omapdss_device_put(src);
omapdss_device_disconnect(dst, dst->next);
}
static int tfp410_enable(struct omap_dss_device *dssdev)
@@ -219,7 +199,7 @@ static int __exit tfp410_remove(struct platform_device *pdev)
WARN_ON(omapdss_device_is_connected(dssdev));
if (omapdss_device_is_connected(dssdev))
omapdss_device_disconnect(dssdev, dssdev->dst);
omapdss_device_disconnect(NULL, dssdev);
return 0;
}