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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-639f40f23f2sm1850757a12.38.2025.10.09.01.51.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 09 Oct 2025 01:51:33 -0700 (PDT) Message-ID: <74893f76-1b7d-4cfb-ba7a-9fd64427762b@oss.qualcomm.com> Date: Thu, 9 Oct 2025 10:51:31 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/7] dt-bindings: panel: Add Samsung S6E3FC2X01 DDIC with panel To: Dmitry Baryshkov , david@ixit.cz Cc: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thierry Reding , Sam Ravnborg , Bjorn Andersson , Konrad Dybcio , Casey Connolly , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, phone-devel@vger.kernel.org References: <20251008-s6e3fc2x01-v2-0-21eca1d5c289@ixit.cz> <20251008-s6e3fc2x01-v2-1-21eca1d5c289@ixit.cz> <7askbazrkbny5jlw6cpxcpjyw5nyiozmksoyj5b5momcc7w5hn@r3x6kddatf3u> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <7askbazrkbny5jlw6cpxcpjyw5nyiozmksoyj5b5momcc7w5hn@r3x6kddatf3u> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMDA4MDEyMSBTYWx0ZWRfXxHh6mz0BMGhL etgmM7UX9Si/L3cFmT8s8kgYb4c7GAQMM/2PIVQSjrQ5lESeB74sI1qzYvQP9vAJ/LwHf/27LAh blH8bJFpzyf9D1k00KmnZ+S5n5Dc1o/niWiNdzQ7rVO1tgtQoFprlZp633EA3fFwcMvm18yqn/e OPkibQOC+5H4SdpHJlikDncvxiGF4f1yxGTevfJ7sLnIYGLaiZ6agAEotbWTe3altAK85lLup6/ QWyRlaAr5oTLY2dqHmzrf1XDyjktcv+BoYJbpICPgXPR1/LmPf3IMx+D41sZjylti5gIUWd88P5 MORFRugD+Ak0zr49MBVQGaXdDUOqd28wlDJmgVAjJpOPJJniCrk7F0qC8TYOAM/kHGI1sDSKS3C Xe5jJYXs9wbqLX16A4oeaKB7NstvzA== X-Proofpoint-ORIG-GUID: OwIGxEwuWxKBYC-M4cRQyEH1HjvTmQKz X-Proofpoint-GUID: OwIGxEwuWxKBYC-M4cRQyEH1HjvTmQKz X-Authority-Analysis: v=2.4 cv=VK3QXtPX c=1 sm=1 tr=0 ts=68e77797 cx=c_pps a=wEM5vcRIz55oU/E2lInRtA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=x6icFKpwvdMA:10 a=LME89Ewccn7mWiF1t2gA:9 a=QEXdDO2ut3YA:10 a=OIgjcC2v60KrkQgK7BGD:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-10-09_02,2025-10-06_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 priorityscore=1501 phishscore=0 clxscore=1015 impostorscore=0 bulkscore=0 spamscore=0 malwarescore=0 suspectscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2510020000 definitions=main-2510080121 On 10/8/25 8:57 PM, Dmitry Baryshkov wrote: > On Wed, Oct 08, 2025 at 04:05:28PM +0200, David Heidelberg via B4 Relay wrote: >> From: David Heidelberg >> >> Basic description for S6E3FC2X01 DDIC with attached panel AMS641RW. >> >> Samsung AMS641RW is 6.41 inch, 1080x2340 pixels, 19.5:9 ratio panel >> >> Signed-off-by: David Heidelberg >> --- >> .../bindings/display/panel/samsung,s6e3fc2x01.yaml | 78 ++++++++++++++++++++++ >> MAINTAINERS | 5 ++ >> 2 files changed, 83 insertions(+) >> > > Please also describe, why it's not enough to use defined compatible, > samsung,s6e3fc2x01. Why do we need a separate schema and can't use the > panel-simple-dsi.yaml panel-simple works for 'dumb' (perhaps a harsh word for 'made with just the in-spec DCS commands in mind') panels, but Samsungs are widely known to require a ton of vendor magic Perhaps the original change was made with an "oh it just works surely there's no drawbacks possible" attitude, as the panel was left initialized by the bootloader Konrad