linux-kernel - [PATCH 5.15 02/73] drm/bridge: Add stubs for devm_drm_of_get

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Date:   Fri,  2 Sep 2022 14:18:26 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Randy Dunlap <rdunlap@...radead.org>,
        Maxime Ripard <maxime@...no.tech>
Subject: [PATCH 5.15 02/73] drm/bridge: Add stubs for devm_drm_of_get_bridge when OF is disabled

From: Maxime Ripard <maxime@...no.tech>

commit 59050d783848d9b62e9d8fb6ce0cd00771c2bf87 upstream.

If CONFIG_OF is disabled, devm_drm_of_get_bridge won't be compiled in
and drivers using that function will fail to build.

Add an inline stub so that we can still build-test those cases.

Reported-by: Randy Dunlap <rdunlap@...radead.org>
Signed-off-by: Maxime Ripard <maxime@...no.tech>
Acked-by: Randy Dunlap <rdunlap@...radead.org> # build-tested
Link: https://patchwork.freedesktop.org/patch/msgid/20210928181333.1176840-1-maxime@cerno.tech
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 include/drm/drm_bridge.h |   13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -911,9 +911,20 @@ struct drm_bridge *devm_drm_panel_bridge
 struct drm_bridge *devm_drm_panel_bridge_add_typed(struct device *dev,
 						   struct drm_panel *panel,
 						   u32 connector_type);
+struct drm_connector *drm_panel_bridge_connector(struct drm_bridge *bridge);
+#endif
+
+#if defined(CONFIG_OF) && defined(CONFIG_DRM_PANEL_BRIDGE)
 struct drm_bridge *devm_drm_of_get_bridge(struct device *dev, struct device_node *node,
 					  u32 port, u32 endpoint);
-struct drm_connector *drm_panel_bridge_connector(struct drm_bridge *bridge);
+#else
+static inline struct drm_bridge *devm_drm_of_get_bridge(struct device *dev,
+							struct device_node *node,
+							u32 port,
+							u32 endpoint)
+{
+	return ERR_PTR(-ENODEV);
+}
 #endif
 
 #endif