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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-tegra@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