From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f46.google.com (mail-ed1-f46.google.com [209.85.208.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 117AB1DED42 for ; Thu, 4 Dec 2025 06:17:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.46 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764829034; cv=none; b=jukoEKooE/PSCoPxQk0w7HLJYhS+PF1R3FNw/vOZHS6VHXqO5VpWVSQ3ghECXLJW1Fntc7Ac4M3asvBEDkmw9PiR68xj4P9AL23eRyFPt8KYpjkVLOnUUqMkF1qIrYt+MsC7bfExeujmwOXIvmZ3uvgSb/isLWYPay0ZWDbYKwA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764829034; c=relaxed/simple; bh=o9IcrFnimv7ibOLrNRYV7WuA4rm8uS1dfW5VR+qdcDs=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=SXHABeCruBMvLqS0bYl16PGky/D5ENzwo90A0HqSud00+/lEiBnrULLtZXkxzkxk+YD5gLktxNeL4osYz6F4/JQLl8dIHLblPi7T1SyzzvvIVNIR+VoeqrkW561sxkRuGL7GeOJss8oO3Om/UiQZ+/J1qzaJ93BWKm2sj3+3ZxI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=kgxBRsKM; arc=none smtp.client-ip=209.85.208.46 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="kgxBRsKM" Received: by mail-ed1-f46.google.com with SMTP id 4fb4d7f45d1cf-640c1fda178so903850a12.1 for ; Wed, 03 Dec 2025 22:17:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1764829031; x=1765433831; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=o5cPONIgu6mzYa/WMF+RelFJ2K/lRyJPaqEbFSvDOqU=; b=kgxBRsKMI227Ed/vvX/GnIK/qV3+r1/uu0E/k3N83xM0cicTTRcq0QQEMs2S3TKmgv xVWBLKj+KSvKbgXqr7lwO7KsA7cLIPv48ieCTvq0V2oiGuXVR3VEVqU6FI+uxpsQlHqT X8Gi3kGecz0+SHX1PkzVuT/ZCpkN5Z72g6LqvMq4MHdmQVnXWNox3AFyEPRogmL3W8Lx v1Vjwov4tl7KdhNpJ/YdTFftvMn+lNN+YOiGLJ3nAaWr93CNGHHHGuxKsCzcotDzeo36 qPsDoLoFWfeQuReSS0HOg73+/umFn2VDRzo4zKQy2HIb3JCAsAG0X3Zd9vouqriF3y6+ d/6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764829031; x=1765433831; 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=o5cPONIgu6mzYa/WMF+RelFJ2K/lRyJPaqEbFSvDOqU=; b=cO0MDJJRQ/p3GruEw5o7nOGvK1VvlHrY2XlA/E6gf0cJr53dODF56rk/P313YKn5La 7WVdHWORBG2Z7lWzcY3QdQiG0Uz8Rg+cuYA4n8v5Fqb6U1eTGP1iBu1hNiCu/W6Qt/cu HhrAAK4lH9ufmbDOW23u+ZG/v7E2hDotNfjVeU04lmmmIl/A8jG2SpJKQrT1Fck4oRSK MqTTjr9AE3Qdlpja1aTfIbaj2WD5A2XXBsnA81WYLlfdSJ48kJY0Vwk7RvtyCjpJ1K7V +2lemu+uZkb1T6DSd3vGSuQL2nAP8vIPUOVoq43XKxyT7s/8W0kboxGgPGr/Ej4vwt/J CpgA== X-Forwarded-Encrypted: i=1; AJvYcCWAE9AA4Fk4bsMTxSR/KQqhbpCcsVMPDMv7Z6omO1wIdxycxbLhq/fHIS60N7h28IAprJ75YYS/jRErdTY=@vger.kernel.org X-Gm-Message-State: AOJu0Yx6D4pxiFnx5EMIy0eHqxfPWeGQIZIgze/2t/0ahDIvuy4AHcW/ xhW6g/zoXi+XOF40HjeL1hKvLvEHa6UE31RcBlufUXMePBSDrSkWWlF8 X-Gm-Gg: ASbGnctcBOI9nDChF461FLXBhyWkcvKzWpUIwXZQ6njzxMw0CGMBAgd4242irhQW7yD o+y5uS/RJnMyzA9nExzLsHCZIVTMjaCPVCjnXS5dutVE+kXj1GFUlGiKoQSNf1lAHLi5Xml1ayV 9ZNXDcNSrBk+edxeXB4BH1ITeGsKraixiLIHE+2a85jBBhBoA3o47kNOUTwsLokNrChhlnsnZ1G f3SqHp2N6bbRJ2no/0Gkq9te0AA2zyfb+0Fy5/k2mlQI9J5qiFEh9Wv9awTGhMI+gtv9/ksjPRc e3xCUUVuKCnDP5OHkPedZrEJZAEgS5Sj7mYrf14+BRIgumS2t+vmTjpKKS6qS94Fd/aiZzowr2I 3gMPFdvR/AQiIi3cAPSRtshFEuA2K1o2x2GOu8Sk11iiW1fLYF5x2ntw3O7IuwxmT///6M3ojJT U= X-Google-Smtp-Source: AGHT+IE96b/uxsEEqrl87S6Pg6TRMB1JugG4AhVEQkgPU/uciaxk7pEZZBKrlSNBh92a+3pEa9CVUQ== X-Received: by 2002:a05:6402:1ecd:b0:647:57db:c997 with SMTP id 4fb4d7f45d1cf-6479c4f6d31mr4107684a12.21.1764829031175; Wed, 03 Dec 2025 22:17:11 -0800 (PST) Received: from xeon ([188.163.112.74]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-647b2ec2d8csm490159a12.5.2025.12.03.22.17.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Dec 2025 22:17:10 -0800 (PST) From: Svyatoslav Ryhel To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thierry Reding , Thierry Reding , Jonathan Hunter , Prashant Gaikwad , Michael Turquette , Stephen Boyd , Mikko Perttunen , David Airlie , Simona Vetter , Svyatoslav Ryhel , Dmitry Osipenko , Charan Pedumuru Cc: devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH v2 0/4 RESEND] gpu/drm: tegra: add DSI support for Tegra20/Tegra30 Date: Thu, 4 Dec 2025 08:16:59 +0200 Message-ID: <20251204061703.5579-1-clamor95@gmail.com> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 --- Svyatoslav Ryhel (4): clk: tegra20: reparent dsi clock to pll_d_out0 gpu/drm: tegra: dsi: move prepare function at the top of encoder enable gpu/drm: tegra: dsi: add support for Tegra20/Tegra30 ARM: tegra: adjust DSI nodes for Tegra20/Tegra30 arch/arm/boot/dts/nvidia/tegra20.dtsi | 4 ++ arch/arm/boot/dts/nvidia/tegra30.dtsi | 8 +++ drivers/clk/tegra/clk-tegra20.c | 6 +- drivers/gpu/drm/tegra/drm.c | 2 + drivers/gpu/drm/tegra/dsi.c | 100 ++++++++++++++++---------- drivers/gpu/drm/tegra/dsi.h | 15 ++++ 6 files changed, 95 insertions(+), 40 deletions(-) -- 2.48.1