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Date: Tue, 14 Feb 2017 22:31:51 +0100 From: Arnd Bergmann <arnd@...db.de> To: Mark Yao <mark.yao@...k-chips.com>, David Airlie <airlied@...ux.ie> Cc: Sean Paul <seanpaul@...omium.org>, Guenter Roeck <groeck@...omium.org>, Arnd Bergmann <arnd@...db.de>, Heiko Stuebner <heiko@...ech.de>, Daniel Vetter <daniel.vetter@...ll.ch>, Yakir Yang <ykk@...k-chips.com>, Philipp Zabel <p.zabel@...gutronix.de>, Chris Zhong <zyw@...k-chips.com>, Tobias Jakobi <tjakobi@...h.uni-bielefeld.de>, dri-devel@...ts.freedesktop.org, linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: [PATCH] drm/rockchip: add extcon dependency for DP 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 <arnd@...db.de> --- 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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