diff options
| author | Neil Armstrong <narmstrong@baylibre.com> | 2021-10-20 14:39:43 +0200 |
|---|---|---|
| committer | Neil Armstrong <narmstrong@baylibre.com> | 2021-11-12 10:07:12 +0100 |
| commit | d235a7c426b1a4867d2db8f640b46843251edd26 (patch) | |
| tree | e32b7ccb4032dc67be64c44d5e0665c7a759b3b3 /drivers/gpu/drm/meson | |
| parent | drm/bridge: display-connector: implement bus fmts callbacks (diff) | |
| download | linux-d235a7c426b1a4867d2db8f640b46843251edd26.tar.xz linux-d235a7c426b1a4867d2db8f640b46843251edd26.zip | |
drm/meson: remove useless recursive components matching
The initial design was recursive to cover all port/endpoints, but only the first layer
of endpoints should be covered by the components list.
This also breaks the MIPI-DSI init/bridge attach sequence, thus only parse the
first endpoints instead of recursing.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211020123947.2585572-3-narmstrong@baylibre.com
Diffstat (limited to 'drivers/gpu/drm/meson')
| -rw-r--r-- | drivers/gpu/drm/meson/meson_drv.c | 62 |
1 files changed, 21 insertions, 41 deletions
diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c index 7f41a33592c8..97ebc07357bb 100644 --- a/drivers/gpu/drm/meson/meson_drv.c +++ b/drivers/gpu/drm/meson/meson_drv.c @@ -426,46 +426,6 @@ static int compare_of(struct device *dev, void *data) return dev->of_node == data; } -/* Possible connectors nodes to ignore */ -static const struct of_device_id connectors_match[] = { - { .compatible = "composite-video-connector" }, - { .compatible = "svideo-connector" }, - { .compatible = "hdmi-connector" }, - { .compatible = "dvi-connector" }, - {} -}; - -static int meson_probe_remote(struct platform_device *pdev, - struct component_match **match, - struct device_node *parent, - struct device_node *remote) -{ - struct device_node *ep, *remote_node; - int count = 1; - - /* If node is a connector, return and do not add to match table */ - if (of_match_node(connectors_match, remote)) - return 1; - - component_match_add(&pdev->dev, match, compare_of, remote); - - for_each_endpoint_of_node(remote, ep) { - remote_node = of_graph_get_remote_port_parent(ep); - if (!remote_node || - remote_node == parent || /* Ignore parent endpoint */ - !of_device_is_available(remote_node)) { - of_node_put(remote_node); - continue; - } - - count += meson_probe_remote(pdev, match, remote, remote_node); - - of_node_put(remote_node); - } - - return count; -} - static void meson_drv_shutdown(struct platform_device *pdev) { struct meson_drm *priv = dev_get_drvdata(&pdev->dev); @@ -477,6 +437,13 @@ static void meson_drv_shutdown(struct platform_device *pdev) drm_atomic_helper_shutdown(priv->drm); } +/* Possible connectors nodes to ignore */ +static const struct of_device_id connectors_match[] = { + { .compatible = "composite-video-connector" }, + { .compatible = "svideo-connector" }, + {} +}; + static int meson_drv_probe(struct platform_device *pdev) { struct component_match *match = NULL; @@ -491,8 +458,21 @@ static int meson_drv_probe(struct platform_device *pdev) continue; } - count += meson_probe_remote(pdev, &match, np, remote); + /* If an analog connector is detected, count it as an output */ + if (of_match_node(connectors_match, remote)) { + ++count; + of_node_put(remote); + continue; + } + + dev_dbg(&pdev->dev, "parent %pOF remote match add %pOF parent %s\n", + np, remote, dev_name(&pdev->dev)); + + component_match_add(&pdev->dev, &match, compare_of, remote); + of_node_put(remote); + + ++count; } if (count && !match) |