drm/bridge: dw-hdmi: convert to of_drm_find_and_get_bridge()

of_drm_find_bridge() is deprecated. Move to its replacement
of_drm_find_and_get_bridge() which gets a bridge reference, and ensure it
is put when done by using the drm_bridge::next_bridge pointer.

Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patch.msgid.link/20260109-drm-bridge-alloc-getput-drm_of_find_bridge-3-v2-1-8d7a3dbacdf4@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 3b77e73ac0eaab9a2649cd758b410bd42c22c5fb..ee88c0e793b0416d20105a43448cb4037402e64b 100644 (file)
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -132,7 +132,6 @@ struct dw_hdmi_phy_data {
 struct dw_hdmi {
        struct drm_connector connector;
        struct drm_bridge bridge;
-       struct drm_bridge *next_bridge;
 
        unsigned int version;
 
@@ -2912,7 +2911,7 @@ static int dw_hdmi_bridge_attach(struct drm_bridge *bridge,
        struct dw_hdmi *hdmi = bridge->driver_private;
 
        if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)
-               return drm_bridge_attach(encoder, hdmi->next_bridge,
+               return drm_bridge_attach(encoder, hdmi->bridge.next_bridge,
                                         bridge, flags);
 
        return dw_hdmi_connector_create(hdmi);
@@ -3318,9 +3317,9 @@ static int dw_hdmi_parse_dt(struct dw_hdmi *hdmi)
        if (!remote)
                return -ENODEV;
 
-       hdmi->next_bridge = of_drm_find_bridge(remote);
+       hdmi->bridge.next_bridge = of_drm_find_and_get_bridge(remote);
        of_node_put(remote);
-       if (!hdmi->next_bridge)
+       if (!hdmi->bridge.next_bridge)
                return -EPROBE_DEFER;
 
        return 0;