From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
To: Chun-Kuang Hu <chunkuang.hu@kernel.org>,
YueHaibing <yuehaibing@huawei.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
David Airlie <airlied@linux.ie>,
Matthias Brugger <matthias.bgg@gmail.com>,
CK Hu <ck.hu@mediatek.com>,
Enric Balletbo i Serra <enric.balletbo@collabora.com>,
DRI Development <dri-devel@lists.freedesktop.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
"moderated list:ARM/Mediatek SoC support"
<linux-mediatek@lists.infradead.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [PATCH -next] drm/mediatek: Fix Kconfig warning
Date: Wed, 29 Apr 2020 00:05:34 +0800 [thread overview]
Message-ID: <CAAOTY_-tNGOaKT9tqT7YSf1hWjShCSMaDxmU2vAqNAGMqPTPBQ@mail.gmail.com> (raw)
In-Reply-To: <20200428145507.GQ3456981@phenom.ffwll.local>
Daniel Vetter <daniel@ffwll.ch> 於 2020年4月28日 週二 下午10:55寫道：
>
> On Sun, Apr 26, 2020 at 04:20:39PM +0800, Chun-Kuang Hu wrote:
> > Hi, YueHaibing:
> >
> > YueHaibing <yuehaibing@huawei.com> 於 2020年4月20日 週一 下午10:04寫道：
> > >
> > > WARNING: unmet direct dependencies detected for MTK_MMSYS
> > > Depends on [n]: (ARCH_MEDIATEK [=y] || COMPILE_TEST [=n]) && COMMON_CLK_MT8173_MMSYS [=n]
> > > Selected by [y]:
> > > - DRM_MEDIATEK [=y] && HAS_IOMEM [=y] && DRM [=y] && (ARCH_MEDIATEK [=y] || ARM && COMPILE_TEST [=n]) && COMMON_CLK [=y] && HAVE_ARM_SMCCC [=y] && OF [=y]
> > >
> > > Add missing dependcy COMMON_CLK_MT8173_MMSYS to fix this.
> >
> > From the code relationship, mediatek drm has relation with mediatek
> > mmsys, and mediatek mmsys has relation with medaitek clock.
> > So I think it's better that CONFIG_MTK_MMSYS select
> > CONFIG_COMMON_CLK_MT8173_MMSYS.
>
> select is very strongly discouraged and should only be used for Kconfig
> symbols not visible to users.
Okay, maybe the better solution is that DRM_MEDIATEK depend on MTK_MMSYS.
Regards,
Chun-Kuang.
> -Daniel
>
> >
> > Regards,
> > Chun-Kuang.
> >
> > >
> > > Fixes: 2c758e301ed9 ("soc / drm: mediatek: Move routing control to mmsys device")
> > > Signed-off-by: YueHaibing <yuehaibing@huawei.com>
> > > ---
> > > 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 c420f5a3d33b..4d9b5540de68 100644
> > > --- a/drivers/gpu/drm/mediatek/Kconfig
> > > +++ b/drivers/gpu/drm/mediatek/Kconfig
> > > @@ -6,6 +6,7 @@ config DRM_MEDIATEK
> > > depends on COMMON_CLK
> > > depends on HAVE_ARM_SMCCC
> > > depends on OF
> > > + depends on COMMON_CLK_MT8173_MMSYS
> > > select DRM_GEM_CMA_HELPER
> > > select DRM_KMS_HELPER
> > > select DRM_MIPI_DSI
> > > --
> > > 2.17.1
> > >
> > >
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
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next prev parent reply other threads:[~2020-04-28 16:05 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-20 13:50 [PATCH -next] drm/mediatek: Fix Kconfig warning YueHaibing
2020-04-26 8:20 ` Chun-Kuang Hu
2020-04-28 3:17 ` [PATCH v2 -next] soc: mediatek: " YueHaibing
2020-04-28 14:55 ` [PATCH -next] drm/mediatek: " Daniel Vetter
2020-04-28 16:05 ` Chun-Kuang Hu [this message]
2020-04-29 7:13 ` [PATCH v3 " YueHaibing
2020-04-29 14:02 ` Enric Balletbo i Serra
2020-04-29 14:15 ` Chun-Kuang Hu
2020-05-06 0:28 ` Chun-Kuang Hu
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