linux-kernel - [PATCH] drm/imx/dcss: fix compilation issue on 32bit

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Date:   Thu, 10 Sep 2020 12:52:50 +0300
From:   Laurentiu Palcu <laurentiu.palcu@....nxp.com>
To:     Lucas Stach <l.stach@...gutronix.de>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>
Cc:     laurentiu.palcu@....nxp.com, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/imx/dcss: fix compilation issue on 32bit

When compiling for 32bit platforms, the compilation fails with:

ERROR: modpost: "__aeabi_ldivmod"
[drivers/gpu/drm/imx/dcss/imx-dcss.ko] undefined!
ERROR: modpost: "__aeabi_uldivmod"
[drivers/gpu/drm/imx/dcss/imx-dcss.ko] undefined!

This patch adds a dependency on ARM64 since no 32bit SoCs have DCSS, so far.

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@....nxp.com>
Reported-by: Daniel Vetter <daniel@...ll.ch>
---
 drivers/gpu/drm/imx/dcss/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/imx/dcss/Kconfig b/drivers/gpu/drm/imx/dcss/Kconfig
index 69860de8861f..2b17a964ff05 100644
--- a/drivers/gpu/drm/imx/dcss/Kconfig
+++ b/drivers/gpu/drm/imx/dcss/Kconfig
@@ -3,7 +3,7 @@ config DRM_IMX_DCSS
 	select IMX_IRQSTEER
 	select DRM_KMS_CMA_HELPER
 	select VIDEOMODE_HELPERS
-	depends on DRM && ARCH_MXC
+	depends on DRM && ARCH_MXC && ARM64
 	help
 	  Choose this if you have a NXP i.MX8MQ based system and want to use the
 	  Display Controller Subsystem. This option enables DCSS support.
-- 
2.17.1