On Tue, Feb 14, 2017 at 10:31:51PM +0100, Arnd Bergmann wrote:
> The newly added DP driver links against the extcon core, which fails when
> extcon is a module and this driver is not:
>
> drivers/gpu/drm/rockchip/cdn-dp-core.o: In function `cdn_dp_get_port_lanes':
> cdn-dp-core.c:(.text.cdn_dp_get_port_lanes+0x24): undefined reference to
> `extcon_get_state'
> cdn-dp-core.c:(.text.cdn_dp_get_port_lanes+0x44): undefined reference to
> `extcon_get_property'
>
> Let's make Kconfig enforce correct behavior with a dependency.
>
> Fixes: 1a0f7ed3abe2 ("drm/rockchip: cdn-dp: add cdn DP support for rk3399")
> Signed-off-by: Arnd Bergmann <a...@arndb.de>
Applied to drm-misc-next-fixes
Thanks,
Sean
> ---
> drivers/gpu/drm/rockchip/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/rockchip/Kconfig
> b/drivers/gpu/drm/rockchip/Kconfig
> index ad31b3eb408f..0e4eb845cbb0 100644
> --- a/drivers/gpu/drm/rockchip/Kconfig
> +++ b/drivers/gpu/drm/rockchip/Kconfig
> @@ -24,6 +24,7 @@ config ROCKCHIP_ANALOGIX_DP
> config ROCKCHIP_CDN_DP
> tristate "Rockchip cdn DP"
> depends on DRM_ROCKCHIP
> + depends on EXTCON
> select SND_SOC_HDMI_CODEC if SND_SOC
> help
> This selects support for Rockchip SoC specific extensions
> --
> 2.9.0
>
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--
Sean Paul, Software Engineer, Google / Chromium OS
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