linux-kernel - [PATCH] vc4: fix build failure in vc4_dsi_dev

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Message-Id: <20230117165258.1979922-1-arnd@kernel.org>
Date:   Tue, 17 Jan 2023 17:52:51 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     Emma Anholt <emma@...olt.net>, Maxime Ripard <mripard@...nel.org>
Cc:     Arnd Bergmann <arnd@...db.de>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Maíra Canal <mcanal@...lia.com>,
        Javier Martinez Canillas <javierm@...hat.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] vc4: fix build failure in vc4_dsi_dev_probe()

From: Arnd Bergmann <arnd@...db.de>

The bridge->of_node field is defined inside of an #ifdef, which
results in a build failure when compile-testing the vc4_dsi driver
without CONFIG_OF:

drivers/gpu/drm/vc4/vc4_dsi.c: In function 'vc4_dsi_dev_probe':
drivers/gpu/drm/vc4/vc4_dsi.c:1822:20: error: 'struct drm_bridge' has no member named 'of_node'
 1822 |         dsi->bridge.of_node = dev->of_node;

Add another #ifdef in the place it is used in. Alternatively we
could consider dropping the #ifdef in the struct definition
and all other users.

Fixes: 78df640394cd ("drm/vc4: dsi: Convert to using a bridge instead of encoder")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/gpu/drm/vc4/vc4_dsi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_dsi.c b/drivers/gpu/drm/vc4/vc4_dsi.c
index 2a71321b9222..a5c075f802e4 100644
--- a/drivers/gpu/drm/vc4/vc4_dsi.c
+++ b/drivers/gpu/drm/vc4/vc4_dsi.c
@@ -1819,7 +1819,9 @@ static int vc4_dsi_dev_probe(struct platform_device *pdev)
 
 	dsi->pdev = pdev;
 	dsi->bridge.funcs = &vc4_dsi_bridge_funcs;
+#ifdef CONFIG_OF
 	dsi->bridge.of_node = dev->of_node;
+#endif
 	dsi->bridge.type = DRM_MODE_CONNECTOR_DSI;
 	dsi->dsi_host.ops = &vc4_dsi_host_ops;
 	dsi->dsi_host.dev = dev;
-- 
2.39.0