From patchwork Thu Feb 24 15:27:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Noralf_Tr=C3=B8nnes?= X-Patchwork-Id: 12758754 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 60E6EC433FE for ; Thu, 24 Feb 2022 15:27:46 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DF03610EADF; Thu, 24 Feb 2022 15:27:38 +0000 (UTC) Received: from asav22.altibox.net (asav22.altibox.net [109.247.116.9]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9C92610EAD1 for ; Thu, 24 Feb 2022 15:27:37 +0000 (UTC) Received: from localhost.localdomain (211.81-166-168.customer.lyse.net [81.166.168.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: noralf.tronnes@ebnett.no) by asav22.altibox.net (Postfix) with ESMTPSA id B715123B78; Thu, 24 Feb 2022 16:27:35 +0100 (CET) From: =?utf-8?q?Noralf_Tr=C3=B8nnes?= To: robh+dt@kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH v5 4/5] drm/mipi-dbi: Add driver_private member to struct mipi_dbi_dev Date: Thu, 24 Feb 2022 16:27:07 +0100 Message-Id: <20220224152708.14459-5-noralf@tronnes.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20220224152708.14459-1-noralf@tronnes.org> References: <20220224152708.14459-1-noralf@tronnes.org> MIME-Version: 1.0 X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=KbX8TzQD c=1 sm=1 tr=0 a=OYZzhG0JTxDrWp/F2OJbnw==:117 a=OYZzhG0JTxDrWp/F2OJbnw==:17 a=IkcTkHD0fZMA:10 a=M51BFTxLslgA:10 a=7gkXJVJtAAAA:8 a=SJz97ENfAAAA:8 a=y_86xVX8oVuJ6HyYcK4A:9 a=QEXdDO2ut3YA:10 a=E9Po1WZjFZOl8hwRPBS3:22 a=vFet0B0WnEQeilDPIY6i:22 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, =?utf-8?q?Noralf_Tr=C3=B8nnes?= , david@lechnology.com, dave.stevenson@raspberrypi.com, thierry.reding@gmail.com, maxime@cerno.tech, sam@ravnborg.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" devm_drm_dev_alloc() can't allocate structures that embed a structure which then again embeds drm_device. Workaround this by adding a driver_private pointer to struct mipi_dbi_dev which the driver can use for its additional state. v3: - Add documentation Acked-by: Maxime Ripard Acked-by: Sam Ravnborg Signed-off-by: Noralf Trønnes --- include/drm/drm_mipi_dbi.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/drm/drm_mipi_dbi.h b/include/drm/drm_mipi_dbi.h index 6fe13cce2670..dad2f187b64b 100644 --- a/include/drm/drm_mipi_dbi.h +++ b/include/drm/drm_mipi_dbi.h @@ -130,6 +130,14 @@ struct mipi_dbi_dev { * @dbi: MIPI DBI interface */ struct mipi_dbi dbi; + + /** + * @driver_private: Driver private data. + * Necessary for drivers with private data since devm_drm_dev_alloc() + * can't allocate structures that embed a structure which then again + * embeds drm_device. + */ + void *driver_private; }; static inline struct mipi_dbi_dev *drm_to_mipi_dbi_dev(struct drm_device *drm)