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drm/bridge: lt9611uxc: properly attach to a next bridge

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If there is a next bridge in the OF graph don't let it be ignored.
Attach the next bridge to the chain.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240701-lt9611uxc-next-bridge-v1-1-665bce5fdaaa@linaro.org
This commit is contained in:
Dmitry Baryshkov 2024-07-01 21:19:52 +03:00 committed by Robert Foss
parent a99aff2608
commit 7c5537cee9
No known key found for this signature in database
GPG Key ID: 3EFD900F76D1D784
1 changed files with 8 additions and 1 deletions
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9
drivers/gpu/drm/bridge/lontium-lt9611uxc.c
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@ -23,6 +23,7 @@
#include <drm/drm_bridge.h>
#include <drm/drm_edid.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_of.h>
#include <drm/drm_print.h>
#include <drm/drm_probe_helper.h>
@ -34,6 +35,7 @@
struct lt9611uxc {
struct device *dev;
struct drm_bridge bridge;
struct drm_bridge *next_bridge;
struct drm_connector connector;
struct regmap *regmap;
@ -358,6 +360,11 @@ static int lt9611uxc_bridge_attach(struct drm_bridge *bridge,
struct lt9611uxc *lt9611uxc = bridge_to_lt9611uxc(bridge);
int ret;
ret = drm_bridge_attach(bridge->encoder, lt9611uxc->next_bridge,
bridge, flags | DRM_BRIDGE_ATTACH_NO_CONNECTOR);
if (ret)
return ret;
if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) {
ret = lt9611uxc_connector_init(bridge, lt9611uxc);
if (ret < 0)
@ -525,7 +532,7 @@ static int lt9611uxc_parse_dt(struct device *dev,
lt9611uxc->dsi1_node = of_graph_get_remote_node(dev->of_node, 1, -1);
return 0;
return drm_of_find_panel_or_bridge(dev->of_node, 2, -1, NULL, &lt9611uxc->next_bridge);
}
static int lt9611uxc_gpio_init(struct lt9611uxc *lt9611uxc)