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

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Date: Wed, 26 Jun 2024 14:37:22 +0800
From: Chen-Yu Tsai <wenst@...omium.org>
To: Thomas Zimmermann <tzimmermann@...e.de>
Cc: 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>, 
	dri-devel@...ts.freedesktop.org, linux-mediatek@...ts.infradead.org, 
	linux-kernel@...r.kernel.org, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Subject: Re: [PATCH] drm/mediatek: select DRM_GEM_DMA_HELPER if DRM_FBDEV_EMULATION=y

Hi Thomas,

On Thu, Jun 20, 2024 at 10:20 PM Chun-Kuang Hu <chunkuang.hu@...nel.org> wrote:
>
> Hi, Chen-Yu:
>
> Chen-Yu Tsai <wenst@...omium.org> 於 2024年6月20日 週四 下午1:47寫道：
> >
> > 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.
>
> Acked-by: Chun-Kuang Hu <chunkuang.hu@...iatek.com>

Could you help merge this?

Thanks
ChenYu

> >
> > 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
> >