linux-kernel - [PATCH] drm/mediatek: select DRM_GEM_DMA_HELPER if DRM_FBDEV

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Date: Thu, 20 Jun 2024 13:47:07 +0800
From: Chen-Yu Tsai <wenst@...omium.org>
To: Chun-Kuang Hu <chunkuang.hu@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>
Cc: Chen-Yu Tsai <wenst@...omium.org>,
	dri-devel@...ts.freedesktop.org,
	linux-mediatek@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Subject: [PATCH] drm/mediatek: select DRM_GEM_DMA_HELPER if DRM_FBDEV_EMULATION=y

With the recent switch from fbdev-generic to fbdev-dma, the driver now
requires the DRM GEM DMA helpers. This dependency is missing, and will
cause a link failure if fbdev emulation is enabled.

Add the missing dependency.

Fixes: 0992284b4fe4 ("drm/mediatek: Use fbdev-dma")
Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>
---
The commit this patch fixes is in drm-misc-next. Ideally this patch
should be applied on top of it directly.

CK, could you give your ack for it?

 drivers/gpu/drm/mediatek/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/mediatek/Kconfig b/drivers/gpu/drm/mediatek/Kconfig
index 96cbe020f493..d6449ebae838 100644
--- a/drivers/gpu/drm/mediatek/Kconfig
+++ b/drivers/gpu/drm/mediatek/Kconfig
@@ -7,6 +7,7 @@ config DRM_MEDIATEK
 	depends on HAVE_ARM_SMCCC
 	depends on OF
 	depends on MTK_MMSYS
+	select DRM_GEM_DMA_HELPER if DRM_FBDEV_EMULATION
 	select DRM_KMS_HELPER
 	select DRM_MIPI_DSI
 	select DRM_PANEL
-- 
2.45.2.741.gdbec12cfda-goog