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Message-Id: <20230719130940.659837-1-arnd@kernel.org>
Date:   Wed, 19 Jul 2023 15:09:21 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Neil Armstrong <neil.armstrong@...aro.org>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Jessica Zhang <quic_jesszhan@...cinc.com>
Cc:     Arnd Bergmann <arnd@...db.de>, Sam Ravnborg <sam@...nborg.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/panel: r66451: select CONFIG_DRM_DISPLAY_DP_HELPER

From: Arnd Bergmann <arnd@...db.de>

The newly added driver only builds when DRM_DISPLAY_DP_HELPER is enabled:

x86_64-linux-ld: drivers/gpu/drm/panel/panel-visionox-r66451.o: in function `visionox_r66451_enable':
panel-visionox-r66451.c:(.text+0x105): undefined reference to `drm_dsc_pps_payload_pack'

Select both CONFIG_DRM_DISPLAY_DP_HELPER and CONFIG_DRM_DISPLAY_HELPER to
ensure the helper function is always available.

Fixes: a6dfab2738fc2 ("drm/panel: Add driver for Visionox r66451 panel")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/gpu/drm/panel/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 1a0fd0754692e..e8c9f4613a4b4 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -798,6 +798,8 @@ config DRM_PANEL_VISIONOX_R66451
 	depends on OF
 	depends on DRM_MIPI_DSI
 	depends on BACKLIGHT_CLASS_DEVICE
+	select DRM_DISPLAY_DP_HELPER
+	select DRM_DISPLAY_HELPER
 	help
 	  Say Y here if you want to enable support for Visionox
 	  R66451 1080x2340 AMOLED DSI panel.
-- 
2.39.2

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