linux-kernel - Re: [PATCH] drm/tiny: pixpaper: add explicit dependency on MMU

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Message-Id: <20251030024329.482105-1-lcwang@ieiworld.com>
Date: Thu, 30 Oct 2025 10:43:29 +0800
From: lcwang <zaq14760@...il.com>
To: tzimmermann@...e.de
Cc: maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	airlied@...il.com,
	simona@...ll.ch,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/tiny: pixpaper: add explicit dependency on MMU

Hi Thomas,

Thanks for the clarification.

Just to confirm my understanding — are you suggesting that this issue
should ideally be fixed in the RISC-V Kconfig (specifically the PORTABLE
logic that ensures MMU is selected), rather than adding a local
"depends on MMU" here in DRM_PIXPAPER?

If that’s the case and the root cause will be addressed in the RISC-V
side, I’m happy to drop this patch to avoid redundant dependencies.

Best regards,
LiangCheng