From: Neil Armstrong <narmstrong@baylibre.com>
To: daniel@ffwll.ch, Laurent.pinchart@ideasonboard.com, sam@ravnborg.org
Cc: martin.blumenstingl@googlemail.com,
dri-devel@lists.freedesktop.org,
linux-amlogic@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Neil Armstrong <narmstrong@baylibre.com>
Subject: [PATCH v3 2/6] drm/meson: remove useless recursive components matching
Date: Wed, 20 Oct 2021 14:39:43 +0200 [thread overview]
Message-ID: <20211020123947.2585572-3-narmstrong@baylibre.com> (raw)
In-Reply-To: <20211020123947.2585572-1-narmstrong@baylibre.com>
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>
---
drivers/gpu/drm/meson/meson_drv.c | 62 +++++++++++--------------------
1 file 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)
--
2.25.1
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next prev parent reply other threads:[~2021-10-20 12:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-20 12:39 [PATCH v3 0/6] drm/meson: rework encoders to pass ATTACH_NO_CONNECTOR Neil Armstrong
2021-10-20 12:39 ` [PATCH v3 1/6] drm/bridge: display-connector: implement bus fmts callbacks Neil Armstrong
2021-10-20 12:39 ` Neil Armstrong [this message]
2021-10-20 12:39 ` [PATCH v3 3/6] drm/meson: split out encoder from meson_dw_hdmi Neil Armstrong
2021-10-20 12:39 ` [PATCH v3 4/6] drm/meson: encoder_hdmi: switch to bridge DRM_BRIDGE_ATTACH_NO_CONNECTOR Neil Armstrong
2021-10-20 12:39 ` [PATCH v3 5/6] drm/meson: rename venc_cvbs to encoder_cvbs Neil Armstrong
2021-10-20 12:39 ` [PATCH v3 6/6] drm/meson: encoder_cvbs: switch to bridge with ATTACH_NO_CONNECTOR Neil Armstrong
2021-11-12 13:24 ` [PATCH v3 0/6] drm/meson: rework encoders to pass ATTACH_NO_CONNECTOR Neil Armstrong
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