xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/omap: dss: Acquire next dssdev at probe time

Browse Source 
Look up the next dssdev at probe time based on device tree links for all
DSS outputs and encoders. This will be used to reverse the order of the
dssdev connect and disconnect call chains.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Laurent Pinchart
2018-03-02 22:13:06 +02:00
committed by Tomi Valkeinen
parent c87193267d
commit 27d624527d
10 changed files with 120 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c
View File

@@ -301,6 +301,13 @@ static int tpd_probe(struct platform_device *pdev)
dssdev->owner = THIS_MODULE;
dssdev->of_ports = BIT(1) | BIT(0);
dssdev->next = omapdss_of_find_connected_device(pdev->dev.of_node, 1);
if (IS_ERR(dssdev->next)) {
if (PTR_ERR(dssdev->next) != -EPROBE_DEFER)
dev_err(&pdev->dev, "failed to find video sink\n");
return PTR_ERR(dssdev->next);
}
omapdss_device_register(dssdev);
return 0;
@@ -311,6 +318,8 @@ static int __exit tpd_remove(struct platform_device *pdev)
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
struct omap_dss_device *dssdev = &ddata->dssdev;
if (dssdev->next)
omapdss_device_put(dssdev->next);
omapdss_device_unregister(&ddata->dssdev);
WARN_ON(omapdss_device_is_enabled(dssdev));