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From: Arnd Bergmann <arnd@kernel.org>
To: Thierry Reding <thierry.reding@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>, Sam Ravnborg <sam@ravnborg.org>,
	David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
	Linus Walleij <linus.walleij@linaro.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	Javier Martinez Canillas <javierm@redhat.com>,
	Ondrej Jirman <megi@xff.cz>,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH] drm: panel: visionox: add backlight dependency
Date: Tue, 17 Jan 2023 17:54:50 +0100	[thread overview]
Message-ID: <20230117165522.2104380-1-arnd@kernel.org> (raw)

From: Arnd Bergmann <arnd@arndb.de>

The newly added driver uses the backlight subsystem but is missing the
corresponding Kconfig dependency:

arm-linux-gnueabi-ld: drivers/gpu/drm/panel/panel-visionox-vtdr6130.o: in function `visionox_vtdr6130_probe':
panel-visionox-vtdr6130.c:(.text+0xdee): undefined reference to `devm_backlight_device_register'

Fixes: 65dc9360f741 ("drm: panel: Add Himax HX8394 panel controller driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/gpu/drm/panel/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index dd79928f5482..8f2046caaa6b 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -742,6 +742,7 @@ config DRM_PANEL_VISIONOX_VTDR6130
 	tristate "Visionox VTDR6130"
 	depends on OF
 	depends on DRM_MIPI_DSI
+	depends on BACKLIGHT_CLASS_DEVICE
 	help
 	  Say Y here if you want to enable support for Visionox
 	  VTDR6130 1080x2400 AMOLED DSI panel.
-- 
2.39.0


             reply	other threads:[~2023-01-17 16:55 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-17 16:54 Arnd Bergmann [this message]
2023-01-17 18:22 ` Linus Walleij
2023-01-17 20:04   ` Javier Martinez Canillas

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