From patchwork Tue Sep 10 10:51:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13798332 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 DF7AAEB64DE for ; Tue, 10 Sep 2024 10:52:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=QVKA9A/ldfUf3FZ6RtIFTY6nDd7A+SmZdvufHp5pUDM=; b=R9Gy0611yiBiMk4Xd3K4xHlzXm VYW3f0ovw0fo7/Zu8xtDsWEbAnWznuLZYYsQ0dGLifwNq7iLIBZ1j7DfV6O+uImLxVTOW+ude2Cg1 Zu+t8HjucWfAwAOnJh2e5emGAcZbEEteQkWOIRY1w2nemt/KHEs17/UxKJjAF4HehqfddEY4RqxdV JB5ZwrE9LgAqa0vGUNyhYyldvvB3QXQSn8KAdSjkYCKTwp9CM9hJazhqfsl/38Y4PfXIoBmYPkhwq iwKuM0dpoEWE3Hbvipb9kejYn2iVcAhN+W0MrlSAqJv4ts4QyxiZUX2Bb4YPutSB40nLFhd08ZH6D egZXPmLg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1snyTv-00000005IyC-0H58; Tue, 10 Sep 2024 10:52:23 +0000 Received: from a7-33.smtp-out.eu-west-1.amazonses.com ([54.240.7.33]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1snySq-00000005Ih5-1BFk; Tue, 10 Sep 2024 10:51:17 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=4232tfv5ebdrjdwkr5zzm7kytdkokgug; d=collabora.com; t=1725965471; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Transfer-Encoding; bh=W1RD6ZLtwjUpl7BZiSTOXdvCCFBmyzBB/xrjT+EHRy0=; b=dEi1MC6VI7idl3wBXJe9St+zHTHKtAbF0KbKCYWZLhIvxC7WlQdL0rCs4qkKX5nS WJoBmMDpWsGnDDkujajj4qpIyFAl4MBeLQ76+P7a3Sju27BrTc3XtjDjb2PjwZHe362 HrmC+bE+G9sE6DdkS+awN1muphbrgZd9f2F7Yi3cJZtlgO2M+mcMaOQSIdnMlrHiL7S zeXYli7aU2osU1R148P5GWM88JBUsJvc35gzdUfqvHy2AEcl9rpLSCeHL+vflUIXpaa 1NgKDNuTYePyEREEN3IMrdx93MbaIQX6z7FWwIQRIQiqTdeWgsLtOjxQy9zHYksVKA8 nu22FOw4/g== DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=uku4taia5b5tsbglxyj6zym32efj7xqv; d=amazonses.com; t=1725965471; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Transfer-Encoding:Feedback-ID; bh=W1RD6ZLtwjUpl7BZiSTOXdvCCFBmyzBB/xrjT+EHRy0=; b=NNiMHoRIJxffH5Kbdl2+xL5MLtYZVlJmUgee3+pR8VXszBTvQo4BDNNiLDkWRSih vbMOunhHfhE3Z42xhAB1gknR/ChGKTyLnupEmsTPfCfpPxWTUdWtPIJJyrny0Ssd6LS o2KcRbxpbDDiR0ABWEpQ5rKwC35CRVpoPajwSYec= From: AngeloGioacchino Del Regno To: chunkuang.hu@kernel.org Cc: robh@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, p.zabel@pengutronix.de, airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, shawn.sung@mediatek.com, yu-chang.lee@mediatek.com, ck.hu@mediatek.com, jitao.shi@mediatek.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, wenst@chromium.org, kernel@collabora.com, sui.jingfeng@linux.dev, michael@walle.cc, sjoerd@collabora.com Subject: [PATCH v10 0/3] drm/mediatek: Add support for OF graphs Date: Tue, 10 Sep 2024 10:51:11 +0000 Message-ID: <01020191db8f0f22-7d4eed45-6265-420c-8dfa-d7c0f6637f9e-000000@eu-west-1.amazonses.com> X-Mailer: git-send-email 2.46.0 MIME-Version: 1.0 Feedback-ID: ::1.eu-west-1.YpP9ZbxnARFfy3Cb5pfsLd/pdsXBCNK0KEM7HforL4k=:AmazonSES X-SES-Outgoing: 2024.09.10-54.240.7.33 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240910_035116_527721_0AE1CF5D X-CRM114-Status: GOOD ( 19.23 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Changes in v10: - Removed erroneously added *.orig/*.rej files Changes in v9: - Rebased on next-20240910 - Removed redundant assignment and changed a print to dev_err() - Dropped if branch to switch conversion as requested; this will be sent as a separate commit out of this series. Changes in v8: - Rebased on next-20240617 - Changed to allow probing a VDO with no available display outputs Changes in v7: - Fix typo in patch 3/3 Changes in v6: - Added EPROBE_DEFER check to fix dsi/dpi false positive DT fallback case - Dropped refcount of ep_out in mtk_drm_of_get_ddp_ep_cid() - Fixed double refcount drop during path building - Removed failure upon finding a DT-disabled path as requested - Tested again on MT8195, MT8395 boards Changes in v5: - Fixed commit [2/3], changed allOf -> anyOf to get the intended allowance in the binding Changes in v4: - Fixed a typo that caused pure OF graphs pipelines multiple concurrent outputs to not get correctly parsed (port->id); - Added OVL_ADAPTOR support for OF graph specified pipelines; - Now tested with fully OF Graph specified pipelines on MT8195 Chromebooks and MT8395 boards; - Rebased on next-20240516 Changes in v3: - Rebased on next-20240502 because of renames in mediatek-drm Changes in v2: - Fixed wrong `required` block indentation in commit [2/3] The display IPs in MediaTek SoCs are *VERY* flexible and those support being interconnected with different instances of DDP IPs (for example, merge0 or merge1) and/or with different DDP IPs (for example, rdma can be connected with either color, dpi, dsi, merge, etc), forming a full Display Data Path that ends with an actual display. This series was born because of an issue that I've found while enabling support for MT8195/MT8395 boards with DSI output as main display: the current mtk_drm_route variations would not work as currently, the driver hardcodes a display path for Chromebooks, which have a DisplayPort panel with DSC support, instead of a DSI panel without DSC support. There are other reasons for which I wrote this series, and I find that hardcoding those paths - when a HW path is clearly board-specific - is highly suboptimal. Also, let's not forget about keeping this driver from becoming a huge list of paths for each combination of SoC->board->disp and... this and that. For more information, please look at the commit description for each of the commits included in this series. This series is essential to enable support for the MT8195/MT8395 EVK, Kontron i1200, Radxa NIO-12L and, mainly, for non-Chromebook boards and Chromebooks to co-exist without conflicts. Besides, this is also a valid option for MT8188 Chromebooks which might have different DSI-or-eDP displays depending on the model (as far as I can see from the mtk_drm_route attempt for this SoC that is already present in this driver). This series was tested on MT8195 Cherry Tomato and on MT8395 Radxa NIO-12L with both hardcoded paths, OF graph support and partially hardcoded paths, and pure OF graph support including pipelines that require OVL_ADAPTOR support. AngeloGioacchino Del Regno (3): dt-bindings: display: mediatek: Add OF graph support for board path dt-bindings: arm: mediatek: mmsys: Add OF graph support for board path drm/mediatek: Implement OF graphs support for display paths .../bindings/arm/mediatek/mediatek,mmsys.yaml | 28 ++ .../display/mediatek/mediatek,aal.yaml | 40 +++ .../display/mediatek/mediatek,ccorr.yaml | 21 ++ .../display/mediatek/mediatek,color.yaml | 22 ++ .../display/mediatek/mediatek,dither.yaml | 22 ++ .../display/mediatek/mediatek,dpi.yaml | 25 +- .../display/mediatek/mediatek,dsc.yaml | 24 ++ .../display/mediatek/mediatek,dsi.yaml | 27 +- .../display/mediatek/mediatek,ethdr.yaml | 22 ++ .../display/mediatek/mediatek,gamma.yaml | 19 ++ .../display/mediatek/mediatek,merge.yaml | 23 ++ .../display/mediatek/mediatek,od.yaml | 22 ++ .../display/mediatek/mediatek,ovl-2l.yaml | 22 ++ .../display/mediatek/mediatek,ovl.yaml | 22 ++ .../display/mediatek/mediatek,postmask.yaml | 21 ++ .../display/mediatek/mediatek,rdma.yaml | 22 ++ .../display/mediatek/mediatek,ufoe.yaml | 21 ++ drivers/gpu/drm/mediatek/mtk_disp_drv.h | 1 + .../gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 40 ++- drivers/gpu/drm/mediatek/mtk_dpi.c | 21 +- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 253 +++++++++++++++++- drivers/gpu/drm/mediatek/mtk_drm_drv.h | 2 +- drivers/gpu/drm/mediatek/mtk_dsi.c | 14 +- 23 files changed, 709 insertions(+), 25 deletions(-)