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([2a01:e0a:3d9:2080:ae8a:f349:da93:8d6e]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48066c40e04sm180119335e9.13.2026.01.29.00.35.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 29 Jan 2026 00:35:48 -0800 (PST) Message-ID: <9042eca8-8b44-4804-9013-c21f1fc0d2b7@linaro.org> Date: Thu, 29 Jan 2026 09:35:47 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Neil Armstrong Reply-To: Neil Armstrong Subject: Re: [PATCH v2 1/3] dt-bindings: display: lt9611: Support single Port B input To: Hongyang Zhao , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Vinod Koul , Bjorn Andersson , Konrad Dybcio Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Roger Shimizu References: <20260128-rubikpi-next-20260116-v2-0-ba51ce8d2bd2@thundersoft.com> <20260128-rubikpi-next-20260116-v2-1-ba51ce8d2bd2@thundersoft.com> Content-Language: en-US, fr Autocrypt: addr=neil.armstrong@linaro.org; keydata= xsBNBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAHNKk5laWwgQXJtc3Ryb25nIDxuZWlsLmFybXN0cm9uZ0BsaW5hcm8ub3JnPsLAkQQTAQoA OwIbIwULCQgHAwUVCgkICwUWAgMBAAIeAQIXgBYhBInsPQWERiF0UPIoSBaat7Gkz/iuBQJk Q5wSAhkBAAoJEBaat7Gkz/iuyhMIANiD94qDtUTJRfEW6GwXmtKWwl/mvqQtaTtZID2dos04 YqBbshiJbejgVJjy+HODcNUIKBB3PSLaln4ltdsV73SBcwUNdzebfKspAQunCM22Mn6FBIxQ GizsMLcP/0FX4en9NaKGfK6ZdKK6kN1GR9YffMJd2P08EO8mHowmSRe/ExAODhAs9W7XXExw UNCY4pVJyRPpEhv373vvff60bHxc1k/FF9WaPscMt7hlkbFLUs85kHtQAmr8pV5Hy9ezsSRa GzJmiVclkPc2BY592IGBXRDQ38urXeM4nfhhvqA50b/nAEXc6FzqgXqDkEIwR66/Gbp0t3+r yQzpKRyQif3OwE0ETVkGzwEIALyKDN/OGURaHBVzwjgYq+ZtifvekdrSNl8TIDH8g1xicBYp QTbPn6bbSZbdvfeQPNCcD4/EhXZuhQXMcoJsQQQnO4vwVULmPGgtGf8PVc7dxKOeta+qUh6+ SRh3vIcAUFHDT3f/Zdspz+e2E0hPV2hiSvICLk11qO6cyJE13zeNFoeY3ggrKY+IzbFomIZY 4yG6xI99NIPEVE9lNBXBKIlewIyVlkOaYvJWSV+p5gdJXOvScNN1epm5YHmf9aE2ZjnqZGoM Mtsyw18YoX9BqMFInxqYQQ3j/HpVgTSvmo5ea5qQDDUaCsaTf8UeDcwYOtgI8iL4oHcsGtUX oUk33HEAEQEAAcLAXwQYAQIACQUCTVkGzwIbDAAKCRAWmrexpM/4rrXiB/sGbkQ6itMrAIfn M7IbRuiSZS1unlySUVYu3SD6YBYnNi3G5EpbwfBNuT3H8//rVvtOFK4OD8cRYkxXRQmTvqa3 3eDIHu/zr1HMKErm+2SD6PO9umRef8V82o2oaCLvf4WeIssFjwB0b6a12opuRP7yo3E3gTCS KmbUuLv1CtxKQF+fUV1cVaTPMyT25Od+RC1K+iOR0F54oUJvJeq7fUzbn/KdlhA8XPGzwGRy 4zcsPWvwnXgfe5tk680fEKZVwOZKIEuJC3v+/yZpQzDvGYJvbyix0lHnrCzq43WefRHI5XTT QbM0WUIBIcGmq38+OgUsMYu4NzLu7uZFAcmp6h8g Organization: Linaro In-Reply-To: <20260128-rubikpi-next-20260116-v2-1-ba51ce8d2bd2@thundersoft.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 1/28/26 12:15, Hongyang Zhao wrote: > The LT9611 has two DSI input ports (Port A and Port B). Update the > binding to clearly document the port mapping and allow using Port B > alone when DSI is physically connected to Port B only. > > Changes: > - Clarify port@0 corresponds to DSI Port A input > - Clarify port@1 corresponds to DSI Port B input > - Change port requirement from mandatory port@0 to anyOf port@0/port@1, > allowing either port to be used independently > > Signed-off-by: Hongyang Zhao > Reviewed-by: Roger Shimizu > --- > .../bindings/display/bridge/lontium,lt9611.yaml | 15 +++++++++++---- > 1 file changed, 11 insertions(+), 4 deletions(-) > > diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml > index 655db8cfdc25..429a06057ae8 100644 > --- a/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml > +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml > @@ -44,21 +44,28 @@ properties: > port@0: > $ref: /schemas/graph.yaml#/properties/port > description: > - Primary MIPI port-1 for MIPI input > + DSI Port A input. directly drives the display, or works in > + combination with Port B for higher resolution displays. > > port@1: > $ref: /schemas/graph.yaml#/properties/port > description: > - Additional MIPI port-2 for MIPI input, used in combination > - with primary MIPI port-1 to drive higher resolution displays > + DSI Port B input. Can be used alone if DSI is physically > + connected to Port B, or in combination with Port A for higher > + resolution displays. > > port@2: > $ref: /schemas/graph.yaml#/properties/port > description: > HDMI port for HDMI output > > + anyOf: > + - required: > + - port@0 > + - required: > + - port@1 > + > required: > - - port@0 > - port@2 > > required: > Reviewed-by: Neil Armstrong Thanks, Neil