linux-kernel - [PATCH -next] drm/vc4: Add explicit declaration of 'drmm_of_get

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Date:   Sat, 16 Jul 2022 10:07:41 +0800
From:   Wang Jingjin <wangjingjin1@...wei.com>
To:     <maarten.lankhorst@...ux.intel.com>, <mripard@...nel.org>,
        <tzimmermann@...e.de>, <airlied@...ux.ie>, <daniel@...ll.ch>,
        <dave.stevenson@...pberrypi.com>
CC:     <maxime@...no.tech>, <dri-devel@...ts.freedesktop.org>,
        <linux-kernel@...r.kernel.org>, <zhengbin13@...wei.com>,
        Wang Jingjin <wangjingjin1@...wei.com>
Subject: [PATCH -next] drm/vc4: Add explicit declaration of 'drmm_of_get_bridge'

Fix the error of implicit declaration of function 'drmm_of_get_bridge':

drivers/gpu/drm/vc4/vc4_dpi.c:278:11: error: implicit declaration of function ‘drmm_of_get_bridge’; did you mean ‘devm_drm_of_get_bridge’? [-Werror=implicit-function-declaration]
  bridge = drmm_of_get_bridge(drm, dev->of_node, 0, 0);

Fixes: 055af0235aef ("drm/vc4: dpi: Switch to drmm_of_get_bridge")
Signed-off-by: Wang Jingjin <wangjingjin1@...wei.com>
---
 include/drm/drm_bridge.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index dba5d81e3b4a..6b65b0dfb4fb 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -959,6 +959,14 @@ static inline struct drm_bridge *devm_drm_of_get_bridge(struct device *dev,
 {
 	return ERR_PTR(-ENODEV);
 }
+
+static inline struct drm_bridge *drmm_of_get_bridge(struct drm_device *drm,
+						     struct device_node *node,
+						     u32 port,
+						     u32 endpoint)
+{
+	return ERR_PTR(-ENODEV);
+}
 #endif

 #endif
--
2.25.1