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bh=rYVPFVXtXxwvNRbtCD49/nQPeoSTTbcvrlAIBfpayjY=; b=re3lIPiJmflvRUjTcAlVu9fzT4kOVWxa2BrBGs1irB50ORgBUTxU+6Y8P7/dcbUV6K VmE2LfL7d67RDyRoF72+TGXrDnxuMlG7Ze7NkRV42jAf+glkugbpRIx7FVV5zo103nvB H0aD4an8dM2Nb0bLbRYs0wz1/XaodCfjq+j+j/VU2VsqDE7xn1u2VliD9BHv1nbbb4K/ nrUi2sZP4wFy2qN5f1uqbMs8GHUcK+lM4VX5VflKdFtPiyw+qUnOcnI3R43Md75X+7fd aBrFSWjJXgEvdnSsk7WNgoX4kMiUiOtzVkBAamPsdxYF9dEZR3bdAN0DAXqfsecfRz3s f9oQ== X-Gm-Message-State: AOAM530C9Aff+5QB2ABhvNZcykFdnAsm4RvSU7lawk8K7nkalla4F01s PhNt//uP3cEjBSa/920Cr3JRbg== X-Google-Smtp-Source: ABdhPJywkmrUoz1GUuww7nlVAg7zrHLNiwitqiedS0hUNTEgnRVlRbzJl1+nrX5fUAnpxtQ9hvkRyA== X-Received: by 2002:a17:90b:691:: with SMTP id m17mr1139326pjz.73.1610068217903; Thu, 07 Jan 2021 17:10:17 -0800 (PST) Received: from drinkcat2.tpe.corp.google.com ([2401:fa00:1:b:7220:84ff:fe09:41dc]) by smtp.gmail.com with ESMTPSA id s1sm6400083pfb.103.2021.01.07.17.10.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Jan 2021 17:10:17 -0800 (PST) From: Nicolas Boichat To: Rob Herring , Steven Price , Alyssa Rosenzweig Subject: [PATCH v9 0/4] drm/panfrost: Add support for mt8183 GPU Date: Fri, 8 Jan 2021 09:10:07 +0800 Message-Id: <20210108011011.4061575-1-drinkcat@chromium.org> X-Mailer: git-send-email 2.29.2.729.g45daf8777d-goog MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210107_201020_182256_CEB5CB26 X-CRM114-Status: GOOD ( 14.61 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Nicolas Boichat , Tomeu Vizoso , fshao@chromium.org, David Airlie , linux-kernel@vger.kernel.org, Rob Herring , boris.brezillon@collabora.com, linux-mediatek@lists.infradead.org, dri-devel@lists.freedesktop.org, Daniel Vetter , hsinyi@chromium.org, Matthias Brugger , hoegsberg@chromium.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi! Follow-up on the v5 [1], things have gotten significantly better in the last 9 months, thanks to the efforts on Bifrost support by the Collabora team (and probably others I'm not aware of). I've been testing this series on a MT8183/kukui device, with a chromeos-5.10 kernel [2], and got basic Chromium OS UI up with mesa 20.3.2 (lots of artifacts though). devfreq is currently not supported, as we'll need: - Clock core support for switching the GPU core clock (see 2/4). - Platform-specific handling of the 2-regulator (see 3/4). Since the latter is easy to detect, patch 3/4 just disables devfreq if the more than one regulator is specified in the compatible matching table. [1] https://patchwork.kernel.org/project/linux-mediatek/cover/20200306041345.259332-1-drinkcat@chromium.org/ [2] https://crrev.com/c/2608070 Changes in v9: - Explain why devfreq needs to be disabled for GPUs with >1 regulators. Changes in v8: - Use DRM_DEV_INFO instead of ERROR Changes in v7: - Fix GPU ID in commit message - Fix GPU ID in commit message Changes in v6: - Rebased, actually tested with recent mesa driver. Nicolas Boichat (4): dt-bindings: gpu: mali-bifrost: Add Mediatek MT8183 arm64: dts: mt8183: Add node for the Mali GPU drm/panfrost: devfreq: Disable devfreq when num_supplies > 1 drm/panfrost: Add mt8183-mali compatible string .../bindings/gpu/arm,mali-bifrost.yaml | 25 +++++ arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 6 + .../arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 6 + arch/arm64/boot/dts/mediatek/mt8183.dtsi | 105 ++++++++++++++++++ drivers/gpu/drm/panfrost/panfrost_devfreq.c | 9 ++ drivers/gpu/drm/panfrost/panfrost_drv.c | 10 ++ 6 files changed, 161 insertions(+)