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[88.112.131.206]) by smtp.gmail.com with ESMTPSA id i10-20020a056512340a00b00513409c4472sm153119lfr.31.2024.03.02.15.32.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 02 Mar 2024 15:32:33 -0800 (PST) Message-ID: <2aa5d81b-c7fe-14e0-40b8-80ef5ba364cb@linaro.org> Date: Sun, 3 Mar 2024 01:32:32 +0200 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.0.2 From: Vladimir Zapolskiy Subject: Re: [PATCH 3/3] arch: arm64: dts: sm8650-hdk: add support for the Display Card overlay To: Neil Armstrong , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20240223-topic-sm8650-upstream-hdk-v1-0-ccca645cd901@linaro.org> <20240223-topic-sm8650-upstream-hdk-v1-3-ccca645cd901@linaro.org> Content-Language: en-US In-Reply-To: <20240223-topic-sm8650-upstream-hdk-v1-3-ccca645cd901@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Neil, On 2/23/24 10:52, Neil Armstrong wrote: > With the SM8650-HDK, a Display Card kit can be connected to provide > a VTDR6130 display with Goodix Berlin Touch controller. > > In order to route the DSI lanes to the connector for the Display > Card kit, a switch must be changed on the board. > > The HDMI nodes are disabled since the DSI lanes are shared with > the DSI to HDMI transceiver. > > Add support for this card as an overlay and apply it it at > build-time to the sm8650-hdk dtb. > > Signed-off-by: Neil Armstrong > --- > + mdp_vsync_active: mdp-vsync-active-state { > + pins = "gpio86"; > + function = "mdp_vsync"; > + drive-strength = <2>; > + bias-pull-down; > + }; > + > + mdp_vsync_suspend: mdp-vsync-suspend-state { > + pins = "gpio86"; > + function = "mdp_vsync"; > + drive-strength = <2>; > + bias-pull-down; > + }; If you have a single pin configuration for active and suspend states, then likely you may have only one device tree node here. Reviewed-by: Vladimir Zapolskiy I don't add my Tested-by tag, since I don't get a panel working on 6.8.0-rc6, while in runtime MSM and DSI are enabled, the panel driver is not initialized: panel-visionox-vtdr6130 ae94000.dsi.0: Failed to initialize panel: -22 -- Best wishes, Vladimir