[PATCH] drm/bridge: tc358764: Fix build error

[YueHaibing]

If CONFIG_DRM_TOSHIBA_TC358764=y but CONFIG_DRM_KMS_HELPER=m,
building fails:

drivers/gpu/drm/bridge/tc358764.o:(.rodata+0x228): undefined reference to `drm_atomic_helper_connector_reset'
drivers/gpu/drm/bridge/tc358764.o:(.rodata+0x240): undefined reference to `drm_helper_probe_single_connector_modes'
drivers/gpu/drm/bridge/tc358764.o:(.rodata+0x268): undefined reference to `drm_atomic_helper_connector_duplicate_state'
drivers/gpu/drm/bridge/tc358764.o:(.rodata+0x270): undefined reference to `drm_atomic_helper_connector_destroy_state'

Like TC358767, select DRM_KMS_HELPER to fix this, and
change to select DRM_PANEL to avoid recursive dependency.

Reported-by: Hulk Robot <hulkci at huawei.com>
Fixes: f38b7cca6d0e ("drm/bridge: tc358764: Add DSI to LVDS bridge driver")
Signed-off-by: YueHaibing <yuehaibing at huawei.com>
---
 drivers/gpu/drm/bridge/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
index a6eec90..323f72d 100644
--- a/drivers/gpu/drm/bridge/Kconfig
+++ b/drivers/gpu/drm/bridge/Kconfig
@@ -116,9 +116,10 @@ config DRM_THINE_THC63LVD1024
 
 config DRM_TOSHIBA_TC358764
 	tristate "TC358764 DSI/LVDS bridge"
-	depends on DRM && DRM_PANEL
 	depends on OF
 	select DRM_MIPI_DSI
+	select DRM_KMS_HELPER
+	select DRM_PANEL
 	help
 	  Toshiba TC358764 DSI/LVDS bridge driver.
 
-- 
2.7.4