From patchwork Wed May 18 18:30:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 574001 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C7E14C433F5 for ; Wed, 18 May 2022 18:30:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241376AbiERSaP (ORCPT ); Wed, 18 May 2022 14:30:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48764 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241402AbiERSaO (ORCPT ); Wed, 18 May 2022 14:30:14 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C527D2268A2 for ; Wed, 18 May 2022 11:30:11 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id E0AA221BB6; Wed, 18 May 2022 18:30:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1652898609; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=LFhkKZCpJuuSRVngySn7Ria9bqnykwodBJ+TQBeWJWw=; b=ZlfIsU0teixeYsjuE71J9WhX7c+tZIinjK6xK27iqO3YsO9IuDVWLZH8mOVXo/yDWpjFZh H/7kHegqMjZyv75f2+HSO5QT8GMallPReoj98LESG/4G/yo8VLg5n0xJCAYbOHdSdi73zp 7fRnF4dEu1ZJY+nTAi/BH0CE6rBqrBA= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1652898609; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=LFhkKZCpJuuSRVngySn7Ria9bqnykwodBJ+TQBeWJWw=; b=Dlt6KKCtllACFZibNb6QiwXu2hr+rnAauJAKKmfx44rDm75gWp2baS4A1cROG/vhVd8luP /1iq4/j1/DTCfmDQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 959A013A6D; Wed, 18 May 2022 18:30:09 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 1oedIzE7hWLPGgAAMHmgww (envelope-from ); Wed, 18 May 2022 18:30:09 +0000 From: Thomas Zimmermann To: javierm@redhat.com, airlied@linux.ie, daniel@ffwll.ch, deller@gmx.de, maxime@cerno.tech, sam@ravnborg.org, msuchanek@suse.de, mpe@ellerman.id.au, benh@kernel.crashing.org, paulus@samba.org Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Thomas Zimmermann Subject: [PATCH 0/2] drm: Add driverof PowerPC OF displays Date: Wed, 18 May 2022 20:30:04 +0200 Message-Id: <20220518183006.14548-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.36.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org PowerPC's Open Firmware offers a simple display buffer for graphics output. Add ofdrm, a DRM driver for the device. As with the existing simpledrm driver, the graphics hardware is pre-initialized by the firmware. The driver only provides blitting, no actual DRM modesetting is possible. Thomas Zimmermann (2): MAINTAINERS: Broaden scope of simpledrm entry drm/tiny: Add ofdrm for Open Firmware framebuffers MAINTAINERS | 5 +- drivers/gpu/drm/tiny/Kconfig | 12 + drivers/gpu/drm/tiny/Makefile | 1 + drivers/gpu/drm/tiny/ofdrm.c | 748 ++++++++++++++++++++++++++++++++++ drivers/video/fbdev/Kconfig | 1 + 5 files changed, 766 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/tiny/ofdrm.c