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| author | Arnd Bergmann <arnd@arndb.de> | 2018-07-11 17:43:10 +0300 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@bootlin.com> | 2018-07-12 10:35:19 +0300 |
| commit | 58d4d29823d9a6c4593c48a1a24e6a9dcec8e3ff (patch) | |
| tree | 7090803321ef866a49d52acc62600c575036721d /drivers/gpu/drm/sun4i/sun4i_drv.c | |
| parent | 7da9b2e47fefb419a21e1c4c5a0682846b41b4a0 (diff) | |
| download | linux-58d4d29823d9a6c4593c48a1a24e6a9dcec8e3ff.tar.xz | |
drm/sun4i: fix build failure with CONFIG_DRM_SUN8I_MIXER=m
Having DRM_SUN4I built-in but DRM_SUN8I_MIXER as a loadable module results in
a link error, as we try to access a symbol from the sun8i_tcon_top.ko module:
ERROR: "sun8i_tcon_top_of_table" [drivers/gpu/drm/sun4i/sun8i-drm-hdmi.ko] undefined!
ERROR: "sun8i_tcon_top_of_table" [drivers/gpu/drm/sun4i/sun4i-drm.ko] undefined!
This solves the problem by adding a silent symbol for the tcon_top module,
building it as a separate module in exactly the cases that we need it,
but in a way that it is reachable by the other modules.
Fixes: 57e23de02f48 ("drm/sun4i: DW HDMI: Expand algorithm for possible crtcs")
Fixes: ef0cf6441fbb ("drm/sun4i: Add support for traversing graph with TCON TOP")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180711144403.1022829-1-arnd@arndb.de
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun4i_drv.c')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun4i_drv.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c index a15feb807393..03ffbcc98dd0 100644 --- a/drivers/gpu/drm/sun4i/sun4i_drv.c +++ b/drivers/gpu/drm/sun4i/sun4i_drv.c @@ -216,7 +216,8 @@ static bool sun4i_drv_node_is_tcon_with_ch0(struct device_node *node) static bool sun4i_drv_node_is_tcon_top(struct device_node *node) { - return !!of_match_node(sun8i_tcon_top_of_table, node); + return IS_ENABLED(CONFIG_DRM_SUN8I_TCON_TOP) && + !!of_match_node(sun8i_tcon_top_of_table, node); } static int compare_of(struct device *dev, void *data) |