linux-kernel - [PATCH AUTOSEL 4.19 11/32] drm/bridge: lvds-encoder: Fix build error while CONFIG_DRM_KMS

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Message-Id: <20190806213522.19859-11-sashal@kernel.org>
Date:   Tue,  6 Aug 2019 17:34:59 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     YueHaibing <yuehaibing@...wei.com>, Hulk Robot <hulkci@...wei.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Sasha Levin <sashal@...nel.org>,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 4.19 11/32] drm/bridge: lvds-encoder: Fix build error while CONFIG_DRM_KMS_HELPER=m

From: YueHaibing <yuehaibing@...wei.com>

[ Upstream commit f4cc743a98136df3c3763050a0e8223b52d9a960 ]

If DRM_LVDS_ENCODER=y but CONFIG_DRM_KMS_HELPER=m,
build fails:

drivers/gpu/drm/bridge/lvds-encoder.o: In function `lvds_encoder_probe':
lvds-encoder.c:(.text+0x155): undefined reference to `devm_drm_panel_bridge_add'

Reported-by: Hulk Robot <hulkci@...wei.com>
Fixes: dbb58bfd9ae6 ("drm/bridge: Fix lvds-encoder since the panel_bridge rework.")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
Reviewed-by: Neil Armstrong <narmstrong@...libre.com>
Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190729071216.27488-1-yuehaibing@huawei.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/bridge/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
index bf6cad6c9178b..7a3e5a8f6439b 100644
--- a/drivers/gpu/drm/bridge/Kconfig
+++ b/drivers/gpu/drm/bridge/Kconfig
@@ -46,6 +46,7 @@ config DRM_DUMB_VGA_DAC
 config DRM_LVDS_ENCODER
 	tristate "Transparent parallel to LVDS encoder support"
 	depends on OF
+	select DRM_KMS_HELPER
 	select DRM_PANEL_BRIDGE
 	help
 	  Support for transparent parallel to LVDS encoders that don't require
-- 
2.20.1