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[2620:137:e000::1:20]) by mx.google.com with ESMTP id 24-20020a17090a035800b002590f26818asi5997583pjf.0.2023.06.25.07.54.59; Sun, 25 Jun 2023 07:55:11 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@collabora.com header.s=mail header.b=bfXlEusY; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=collabora.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230079AbjFYORr (ORCPT <rfc822;duw91626@gmail.com> + 99 others); Sun, 25 Jun 2023 10:17:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49636 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229447AbjFYORo (ORCPT <rfc822;linux-kernel@vger.kernel.org>); Sun, 25 Jun 2023 10:17:44 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E766FE4C for <linux-kernel@vger.kernel.org>; Sun, 25 Jun 2023 07:17:43 -0700 (PDT) Received: from sobremesa.fritz.box (unknown [IPv6:2a02:8010:65b5:0:bbb0:f8ec:7bc9:dbe4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: alarumbe) by madras.collabora.co.uk (Postfix) with ESMTPSA id 66B026607117; Sun, 25 Jun 2023 15:17:41 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1687702661; bh=DxqtcNgHx6hoDKk2XdG/IolUBA1mvNJ/4G4qGWj7gtg=; h=From:To:Cc:Subject:Date:From; b=bfXlEusYSiypBVOTQo73/JrfKbD5abbFJeLoRPCtK0pol+LLvfQ3MEwmH93H5QY3v EXBnDEyxZtL8WRfWXXiF84jXhGM4rRxlntNAGYfC2Exdg1JESIsyw1Mv2vBdJoWum0 etn4CCy+ZPbs4uaJOoywFr7BCIuzp6iM2M5Jv0IFV2zopK972nG0cd+9WiNZDGzEEM /z/3dpzQYfRDpUkIJbNhd7gpF6QOadpHlv4nZxC+XXFRbHLyySNtnDlUYS7dJ1szNe DHuK2V9NzPpXAOTPAlssqofbbPpj9kTjlCpEcwarBKtM/I+MqY3M298tjIw2BmJ/MK JQkcSJm3gxxbA== From: =?utf-8?q?Adri=C3=A1n_Larumbe?= <adrian.larumbe@collabora.com> To: Andrzej Hajda <andrzej.hajda@intel.com>, Neil Armstrong <neil.armstrong@linaro.org>, Robert Foss <rfoss@kernel.org>, Laurent Pinchart <Laurent.pinchart@ideasonboard.com>, Jonas Karlman <jonas@kwiboo.se>, Jernej Skrabec <jernej.skrabec@gmail.com>, David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, Kevin Hilman <khilman@baylibre.com>, Jerome Brunet <jbrunet@baylibre.com>, Martin Blumenstingl <martin.blumenstingl@googlemail.com> Cc: =?utf-8?q?Adri=C3=A1n_Larumbe?= <adrian.larumbe@collabora.com>, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 0/3] Add additional YUV420 bus format check for dw-meson's bridge enable Date: Sun, 25 Jun 2023 15:17:14 +0100 Message-Id: <cover.1687702042.git.adrian.larumbe@collabora.com> X-Mailer: git-send-email 2.40.0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1769686865961806124?= X-GMAIL-MSGID: =?utf-8?q?1769686865961806124?= |
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Add additional YUV420 bus format check for dw-meson's bridge enable
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Message
Adrián Larumbe
June 25, 2023, 2:17 p.m. UTC
This is a belated follow-up on https://lore.kernel.org/dri-devel/20220515204412.2733803-1-adrian.larumbe@collabora.com Commit e67f6037ae1be34b2b68 ("drm/meson: split out encoder from meson_dw_hdmi") broke 4K display modes for me, and I discovered it was because the right pixel clock wasn't being chosen in dw_hdmi_phy_init. I misinterpreted the reason as a problem in figuring out whether we want to enforce YUV420 mode, but it turned out to be a mismatch between what dw-meson code is doing and the way the bus format is being picked by the dw-hdmi bus output format drm helper. I fixed it by bringing back dw-hdmi bus format check in dw-meson. The second patch makes sure YUV420 bus format is the only one being returned by dw-hdmi's output format bridge function when that's the only drm mode allowed. Changelog: v3: - Change commit message for all three commits to accurately reflect the modified files' subsystem. - Add v1's Acked-by tags from subsystem maintainer v2: - Add commit message to patch number 3 in the series Adrián Larumbe (3): drm/bridge: dw-hdmi: change YUV420 selection logic at clock setup drm/bridge: dw-hdmi: truly enforce 420-only formats when drm mode demands it drm/bridge: dw-hdmi: remove dead code and fix indentation drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 35 +++++++++-------------- drivers/gpu/drm/meson/meson_dw_hdmi.c | 4 +-- include/drm/bridge/dw_hdmi.h | 2 ++ 3 files changed, 18 insertions(+), 23 deletions(-)
Comments
Hi, On Sun, 25 Jun 2023 15:17:14 +0100, Adrián Larumbe wrote: > This is a belated follow-up on > https://lore.kernel.org/dri-devel/20220515204412.2733803-1-adrian.larumbe@collabora.com > > Commit e67f6037ae1be34b2b68 ("drm/meson: split out encoder from meson_dw_hdmi") > broke 4K display modes for me, and I discovered it was because the right > pixel clock wasn't being chosen in dw_hdmi_phy_init. I misinterpreted the > reason as a problem in figuring out whether we want to enforce YUV420 mode, > but it turned out to be a mismatch between what dw-meson code is doing and > the way the bus format is being picked by the dw-hdmi bus output format drm > helper. > > [...] Thanks, Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next) [1/3] drm/bridge: dw-hdmi: change YUV420 selection logic at clock setup https://cgit.freedesktop.org/drm/drm-misc/commit/?id=7ed40ff1d134bf3a4aef706eed478b926f35b404 [2/3] drm/bridge: dw-hdmi: truly enforce 420-only formats when drm mode demands it https://cgit.freedesktop.org/drm/drm-misc/commit/?id=f3710b424a96078f416e1be9cf52b87eadabae78 [3/3] drm/bridge: dw-hdmi: remove dead code and fix indentation https://cgit.freedesktop.org/drm/drm-misc/commit/?id=2299a8d12c1cbcdc7086027615d9936a970e7d68