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[82.131.98.15]) by smtp.gmail.com with ESMTPSA id t19-20020a195f13000000b004896ed8dce3sm325213lfb.2.2022.08.24.23.11.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 24 Aug 2022 23:11:34 -0700 (PDT) Message-ID: <3ff08ae9-a4b6-2b74-23cb-69ea1d7e1033@linaro.org> Date: Thu, 25 Aug 2022 09:11:33 +0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.12.0 Subject: Re: [PATCH] dt-bindings: arm: mediatek: mmsys: change compatible for MT8195 Content-Language: en-US To: Bo-Chen Chen , robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com Cc: jason-jh.lin@mediatek.com, nancy.lin@mediatek.com, ck.hu@mediatek.com, chunkuang.hu@kernel.org, angelogioacchino.delregno@collabora.com, hsinyi@google.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Project_Global_Chrome_Upstream_Group@mediatek.com References: <20220825055658.12429-1-rex-bc.chen@mediatek.com> From: Krzysztof Kozlowski In-Reply-To: <20220825055658.12429-1-rex-bc.chen@mediatek.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220824_231139_093748_3CD392C6 X-CRM114-Status: GOOD ( 10.26 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On 25/08/2022 08:56, Bo-Chen Chen wrote: > From: "Jason-JH.Lin" > > For previous MediaTek SoCs, such as MT8173, there are 2 display HW > pipelines binding to 1 mmsys with the same power domain, the same > clock driver and the same mediatek-drm driver. > > For MT8195, VDOSYS0 and VDOSYS1 are 2 display HW pipelines binding to > 2 different power domains, different clock drivers and different > mediatek-drm drivers. I don't see binding to different clock drivers and anyway that's not really an argument here. Please focus in description on hardware properties, IOW, are devices compatible or different. What is the incompatible difference between VDOSYS0 and 1? Best regards, Krzysztof