From mboxrd@z Thu Jan 1 00:00:00 1970 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 496DCEF36FC for ; Mon, 9 Mar 2026 07:53:17 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6610A10E4A3; Mon, 9 Mar 2026 07:53:14 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="RBLrANPe"; dkim-atps=neutral Received: from mail-wm1-f45.google.com (mail-wm1-f45.google.com [209.85.128.45]) by gabe.freedesktop.org (Postfix) with ESMTPS id 99B8B10E49B for ; Mon, 9 Mar 2026 07:53:12 +0000 (UTC) Received: by mail-wm1-f45.google.com with SMTP id 5b1f17b1804b1-48370174e18so69089105e9.2 for ; Mon, 09 Mar 2026 00:53:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1773042791; x=1773647591; darn=lists.freedesktop.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=hQSj4yb9M7hPwSpBxDj8hHK3jRimcbsKCK5DUSyRAe0=; b=RBLrANPeBKnq42jDELckzffFkS8I2JB7SZyE1QrP1Bpec4uqNAOS/GeQL2r794cpYn GhfxkEiABCFba58HlYhaS41z4SoFcODH39qx8bL8jVEKDFaGjicCwx67CyLClr8cMddp Th6MUljxG6DJerZBXJn+pDUjeT7msxNzLtjMHjNwWzBNfz3dIUdc1WAVg5PDwP+Xk73R lCANo0j5SIG/BhfAVicUaqvRxRgM4zVGqc00BYC3yu44JnxNyFVv+wmPmtKLhTciCZ0V aFIPGomqrp3yyfhJB9Ed5JRNkGX0an49w7FBtTrCXC+MT1uAeIjYu5vyg3Bb6jkQukJX y7sg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1773042791; x=1773647591; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=hQSj4yb9M7hPwSpBxDj8hHK3jRimcbsKCK5DUSyRAe0=; b=cS5+08D6uogX16UN3gYSFPs4XIJ57caCBUHl1RvlRMbN0KYEKlhEc6naP0GVcb1MIL B48O8XshSMIrgizIjDYTO+cVGdM/c1J2ExquOSItGhuqN9QmoDCuA+XDmWkrX4bi7J2Z McXLZ1v8JrFEWQIFMvUpw00EGDnAqgi5TqlmqUuH7UViP7p2gOL+njxoLqxmOKCIQxic FjtFqeW9uqOc+uSGfF6eErGexnFwQo9qwJgI66tP84kw5O38NPHQK3ic4BOrB+lNwNQD 5CWBR+tuLJXhMOtOjTkM15x74Iof/wkXnE5r1OK+APmpfwRQni6wS3Xw68v5/6JrUmpm udYQ== X-Gm-Message-State: AOJu0Yxt3X6BvH8dE/3Lyvh6KsVh7+1foLYLoMa7dMm2YH8xDQy4l5C9 XQhfrtRd6greOI9ZGLd4tAUGPNFAfRO7UrouEyJGueOmvbDrVSgw3bzW X-Gm-Gg: ATEYQzznUU6ibNFWlpU0Nacnhu1NhluHY07vljdMwccolxJiKumwxAs61uQTp4v2/B5 7CERgsjFUexqSg7u2QL0PGrwiLonMzkOz+XDyXNBvFzu1RVJ7Uq9WI3EASI8HI/weYLbQMKR619 v9d5JTnAGcKfA9joLKoRXPVvwrjbmY25FPT7ynErjdOcH2smHP3s/U8+ZvGHVp73yYlUMqYKKy9 CVv9FnyjuJeVOeygII3uAGi98LDryhh5rDq5myqnI7rIG48MzR4iHmp5DC9RNofpZpYzMeiCas/ 1C/883LQ7ApCKc5/aEackmQJEYUFF+sdqdileBJMhkOvlBKcRHPHU/gIIx338ZCd2r0EafZIxm7 fk9k1LrU49Wj8haUTMIF8NlVG5XNHKCe31ylTBydcWRRBZC4pimg6tlaB3stWGajLOs5XJ/QZJ5 Tydz7v2ZtzNZUF X-Received: by 2002:a05:600c:a403:b0:485:2969:cd9f with SMTP id 5b1f17b1804b1-4852969d02emr123760865e9.12.1773042790689; Mon, 09 Mar 2026 00:53:10 -0700 (PDT) Received: from xeon ([188.163.112.72]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-485245dbd87sm97799975e9.16.2026.03.09.00.53.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Mar 2026 00:53:10 -0700 (PDT) From: Svyatoslav Ryhel To: Thierry Reding , Mikko Perttunen , David Airlie , Simona Vetter , Jonathan Hunter , Diogo Ivo , Svyatoslav Ryhel Cc: dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 0/2] gpu/drm: tegra: add DSI support for Tegra20/Tegra30 Date: Mon, 9 Mar 2026 09:52:46 +0200 Message-ID: <20260309075248.47730-1-clamor95@gmail.com> X-Mailer: git-send-email 2.51.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Tegra20/Tegra30 DSI is quite similar to Tegra114+ apart MIPI calibration logic and clocks. With a few minor tweaks, existing tegra DSI driver should work on Tegra20/Tegra30 devices just fine. Tested on Motorola Atrix 4G (T20) and ASUS VivoTab RT TF600T (T30). This patchset depends on Tegra20/Tegra30 CSI bringup since both share MIPI calibration logic. Ideally these patches should be picked after CSI bringup but they will not break anything even if picked before CSI patches. --- Changes in v2: - removed all MIPI calibration, it is handled within CSI bringup - added per-soc structures into of_match - added fix for hang caused by register access with uninited hw Changes in v3: - switched from version DSI to boolean flags - added comment regarding Tegra30 clock configuration - commits were picked: "clk: tegra20: reparent dsi clock to pll_d_out0" "ARM: tegra: adjust DSI nodes for Tegra20/Tegra30" - commit adapted to recent DSI changes: "gpu/drm: tegra: dsi: move prepare function at the top of encoder enable" > "gpu/drm: tegra: dsi: re-add clear enable register if DSI was powered by bootloader" Changes in v4: - switched to device_get_match_data and added check - added comment regarding Tegra124+ quirk - adjusted commit titles and message formatting --- Svyatoslav Ryhel (2): drm/tegra: dsi: add support for Tegra20/Tegra30 drm/tegra: dsi: re-add clear enable register if DSI was powered by bootloader drivers/gpu/drm/tegra/drm.c | 2 + drivers/gpu/drm/tegra/dsi.c | 126 +++++++++++++++++++++++++++--------- drivers/gpu/drm/tegra/dsi.h | 10 +++ 3 files changed, 107 insertions(+), 31 deletions(-) -- 2.51.0