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 04D13CD37AC for ; Mon, 11 May 2026 07:46:00 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 59FB310E439; Mon, 11 May 2026 07:45:59 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="WvpmMK3P"; dkim-atps=neutral Received: from mail-lf1-f54.google.com (mail-lf1-f54.google.com [209.85.167.54]) by gabe.freedesktop.org (Postfix) with ESMTPS id 54A3C10E13F for ; Mon, 11 May 2026 07:45:58 +0000 (UTC) Received: by mail-lf1-f54.google.com with SMTP id 2adb3069b0e04-5a8d1f43432so652197e87.3 for ; Mon, 11 May 2026 00:45:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1778485556; x=1779090356; 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=WvpmMK3PiVK+YQl2pRugEDHOLvafHKy5osQKUa5oCiFAFmcuAXqrJsUHCZixEua8Qy H9iscJjMdmkqDkXdw/8CltJMpeWXH8UZYBpjAfyXgLNhH2Bw2B1l4s2KRJF6ldayYhEA XxDR3M22DZaxhWysKsnOxmnDQClIDpmZ09qkLGnBftI0NBW7DOBx64wnuRHKP1y/sfst EZykW7kBxCRLkGxiUfR88A0y4Hkx1qvbQdX+QdaV42sWFLo9mfPBDcOeR3pfONbqagy9 yP6rnUzzsQB/O1+GAX8rdHbd0yyr8xUY7RFpw2GPl9HYUvO/YEv/QcD4kPlHbvWIHwOI sa7Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778485556; x=1779090356; 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=ErZVmcTqi83NxHHSb8r/ZgqIDOHE2xdoG7i8FtC9aLn/BzeEyd/culmijo4xBCdiuf kEgZ7ZgBW27CqYF9vbfFuWyZvxxIPa4fc5GSipo077jXonu/R0UE8UL8ySdtwTpVsmQS EklMOENFDQIKdHoo3YOwONEblyscjeSr1vanqfykhxOlXin6wf7+HbD6wGAgKf+8HI88 Aq/UMPaC2F6okyKRkIcWUO5ON/kOyczfOXYZT1WPiUyvLLnzbPUNqdq8PDzw+0WEnGgg bQzaGkCS85VoJa1qX4ZFtbRj0OEBtyYN3FlHEBUuTaK0O5QmTBzBuAKmvW+tP3Nzaml2 uGjQ== X-Gm-Message-State: AOJu0YxY1Dymc1QIriyrcEwHyIcWVgDHSwtB0CY3lAuF/uLwOr61lYBb 3hZTl6+Z6CTLTBsXcYqJRKbf5CSuR7qDBApqwADUGHgsfkJ6dcY6t295 X-Gm-Gg: Acq92OHkcstROhnkIed7P3StYvSf94OO8tXAgBFW4ZKVu5B1Giwy9ZVYhFJPL/etl/Q If4kRoB0fZzut3IDOFNrUBhPvNNsIe4wCP5VN1rzFMydozDkxZ489dstplt9/0F/dqy8WtDjcH3 2+jaEaOt5ry7JVxXH8FLozo92ThNXrBMu/tTpkfmkVtT18q+sEcFS7DYCopImBiAae8nM1sptLS 5mFHd28PuAo7JyoOTRLz0yK4Scxg3EN0ZMFSsZPBkBrNkgyd+imFq5cz5CN1g17Nx/rktSNvI/z sSuTqoabxF4sYQZn4LnkU6loaiZ/BxUuYWl5LBrMZ794T2ogNAPga15QaquSC/EttCR2EEAWER/ 60lvci9qcMlOXiNN9pKwG7NxqgFfgdCsFcZ8QGd7I3bZ8OGDeAIhMErDJxa1L1Unl39Vpy3g8WE rD8XUpjHvvqVGy X-Received: by 2002:a05:6512:308b:b0:5a8:89c5:2bee with SMTP id 2adb3069b0e04-5a889c52ce3mr9201102e87.39.1778485556237; Mon, 11 May 2026 00:45:56 -0700 (PDT) Received: from xeon ([188.163.112.56]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5a8a952705asm2404394e87.32.2026.05.11.00.45.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 May 2026 00:45:55 -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 RESEND] gpu/drm: tegra: add DSI support for Tegra20/Tegra30 Date: Mon, 11 May 2026 10:45:35 +0300 Message-ID: <20260511074538.24563-1-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