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Wed, 5 Feb 2025 20:11:28 +0000 (UTC) Received: from asrivats-na.rmtustx.csb (unknown [10.2.17.21]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 760DD19560AB; Wed, 5 Feb 2025 20:11:18 +0000 (UTC) From: Anusha Srivatsa Date: Wed, 05 Feb 2025 15:08:08 -0500 Subject: [PATCH 12/12] Documentation: Update the todo Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250205-mem-cocci-newapi-v1-12-aebf2b0e2300@redhat.com> References: <20250205-mem-cocci-newapi-v1-0-aebf2b0e2300@redhat.com> In-Reply-To: <20250205-mem-cocci-newapi-v1-0-aebf2b0e2300@redhat.com> To: Joel Stanley , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Andrew Jeffery , Stefan Agner , Alison Wang , Xinliang Liu , Tian Tao , Xinwei Kong , Sumit Semwal , Yongqin Liu , John Stultz , Chun-Kuang Hu , Philipp Zabel , Matthias Brugger , AngeloGioacchino Del Regno , Marek Vasut , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Andy Yan , Orson Zhai , Baolin Wang , Chunyan Zhang , Alain Volmat , Raphael Gallais-Pou , Yannick Fertre , Raphael Gallais-Pou , Philippe Cornu , Maxime Coquelin , Alexandre Torgue , Thierry Reding , Mikko Perttunen , Jonathan Hunter , Alexey Brodkin , Dave Stevenson , =?utf-8?q?Ma=C3=ADra_Cana?= =?utf-8?q?l?= , Raspberry Pi Kernel Maintenance , Jonathan Corbet Cc: linux-aspeed@lists.ozlabs.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, imx@lists.linux.dev, linux-rockchip@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, linux-tegra@vger.kernel.org, linux-doc@vger.kernel.org, Anusha Srivatsa X-Developer-Signature: v=1; a=ed25519-sha256; t=1738786137; l=1470; i=asrivats@redhat.com; s=20250122; h=from:subject:message-id; bh=8E/zDOS2y2jXYtpxt4v/XPpri1L2d3Hp1icGGz6XyLc=; b=kvdtINpTCFoOpfqXf/fVrI+PlDBH109lqvGOt8aqdxgPNRLHbndphfZbHS68h26FBvlE/Lev1 rwTEVkvxYkZBkVPbSaO6vTBgPPPOtlnOVyP8CR4ue3yQ+gZM3xTUog2 X-Developer-Key: i=asrivats@redhat.com; a=ed25519; pk=brnIHkBsUZEhyW6Zyn0U92AeIZ1psws/q8VFbIkf1AU= X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: 5lRKV-U8kBFqvswHfA1R5h-OzKDlK3oe1xJ1rBR8EV4_1738786288 X-Mimecast-Originator: redhat.com Update the Documentation to be more precise. v2: Update for clarity Cc: Thomas Zimmermann Signed-off-by: Anusha Srivatsa --- Documentation/gpu/todo.rst | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index 256d0d1cb2164bd94f9b610a751b907834d96a21..03fcd086889acbd1294669b260292ffc79e97e2f 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -441,13 +441,13 @@ Contact: Thomas Zimmermann Level: Intermediate -Request memory regions in all drivers -------------------------------------- +Request memory regions in all fbdev drivers +-------------------------------------------- -Go through all drivers and add code to request the memory regions that the -driver uses. This requires adding calls to request_mem_region(), -pci_request_region() or similar functions. Use helpers for managed cleanup -where possible. +Old/ancient fbdev drivers do not request their memory properly. +Go through these drivers and add code to request the memory regions that the +driver uses. Problematic areas include hardware that has exclusive ranges like +VGA. VGA16fb does not request the range as it is expected. Drivers are pretty bad at doing this and there used to be conflicts among DRM and fbdev drivers. Still, it's the correct thing to do.