linux-kernel - [PATCH] gpu: ipu-v3: add DRM dependency

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Message-Id: <20170321143112.3348699-1-arnd@arndb.de>
Date:   Tue, 21 Mar 2017 15:31:04 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Philipp Zabel <p.zabel@...gutronix.de>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Stephen Boyd <stephen.boyd@...aro.org>, robdclark@...il.com,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] gpu: ipu-v3: add DRM dependency

The new PRE/PRG driver code causes a link failure when DRM is disabled:

drivers/gpu/ipu-v3/ipu-pre.o: In function `ipu_pre_configure':
ipu-pre.c:(.text.ipu_pre_configure+0x18): undefined reference to `drm_format_info'
drivers/gpu/ipu-v3/ipu-prg.o: In function `ipu_prg_format_supported':
ipu-prg.c:(.text.ipu_prg_format_supported+0x8): undefined reference to `drm_format_info'

Adding a Kconfig dependency on DRM means we don't run into this problem
any more. This might not be the best solution though, as the ipu seems
to have been intentionally kept separate from DRM in the past.

Fixes: ea9c260514c1 ("gpu: ipu-v3: add driver for Prefetch Resolve Gasket")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/gpu/ipu-v3/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/ipu-v3/Kconfig b/drivers/gpu/ipu-v3/Kconfig
index 08766c6e7856..f8b200801408 100644
--- a/drivers/gpu/ipu-v3/Kconfig
+++ b/drivers/gpu/ipu-v3/Kconfig
@@ -1,6 +1,7 @@
 config IMX_IPUV3_CORE
 	tristate "IPUv3 core support"
 	depends on SOC_IMX5 || SOC_IMX6Q || ARCH_MULTIPLATFORM
+	depends on DRM
 	select GENERIC_IRQ_CHIP
 	help
 	  Choose this if you have a i.MX5/6 system and want to use the Image
-- 
2.9.0