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([144.202.86.13]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3087dee325bsm1774222a91.9.2025.04.18.11.34.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Apr 2025 11:34:41 -0700 (PDT) From: Pengyu Luo To: jun.nie@linaro.org Cc: airlied@gmail.com, dmitry.baryshkov@linaro.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, marijn.suijten@somainline.org, quic_abhinavk@quicinc.com, quic_jesszhan@quicinc.com, robdclark@gmail.com, sean@poorly.run, simona@ffwll.ch Subject: Re: [PATCH v8 00/15] drm/msm/dpu: Support quad pipe with dual-DSI Date: Sat, 19 Apr 2025 02:32:36 +0800 Message-ID: <20250418183236.209236-1-mitltlatltl@gmail.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250303-sm8650-v6-14-hmd-deckard-mdss-quad-upstream-oldbootwrapper-36-prep-v8-0-eb5df105c807@linaro.org> References: <20250303-sm8650-v6-14-hmd-deckard-mdss-quad-upstream-oldbootwrapper-36-prep-v8-0-eb5df105c807@linaro.org> 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" On Mon, 03 Mar 2025 23:14:29 +0800 Jun Nie wrote: > 2 or more SSPPs and dual-DSI interface are need for super wide panel. > And 4 DSC are preferred for power optimal in this case due to width > limitation of SSPP and MDP clock rate constrain. This patch set > extends number of pipes to 4 and revise related mixer blending logic > to support quad pipe. All these changes depends on the virtual plane > feature to split a super wide drm plane horizontally into 2 or more sub > clip. Thus DMA of multiple SSPPs can share the effort of fetching the > whole drm plane. > > The first pipe pair co-work with the first mixer pair to cover the left > half of screen and 2nd pair of pipes and mixers are for the right half > of screen. If a plane is only for the right half of screen, only one > or two of pipes in the 2nd pipe pair are valid, and no SSPP or mixer is > assinged for invalid pipe. > > For those panel that does not require quad-pipe, only 1 or 2 pipes in > the 1st pipe pair will be used. There is no concept of right half of > screen. > > For legacy non virtual plane mode, the first 1 or 2 pipes are used for > the single SSPP and its multi-rect mode. > > To test bonded DSI on SM8650, the 5 patches for active-CTL improvement > are needed: > https://gitlab.freedesktop.org/lumag/msm/-/commits/dpu-4k?ref_type=heads > [...] > base-commit: b44251a8c179381b9f3ed3aa49be04fe1d516903 Hi, Jun. The display of my sm8650 device requires 4:4:2(lm, dsc, intf) topology, I want to test this series, these patches can't be applied to the latest linux-next tree, and I can't find the commit id in linux-next or msm-next. Where can I fetch the tree? Best wishes, Pengyu