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Mon, 30 Mar 2026 18:22:28 -0700 (PDT) X-Received: by 2002:a17:902:d2cd:b0:2b2:4697:78f5 with SMTP id d9443c01a7336-2b246977e0cmr104087245ad.36.1774920148336; Mon, 30 Mar 2026 18:22:28 -0700 (PDT) MIME-Version: 1.0 References: <20260330-ws-lcd-v1-0-309834a435c0@oss.qualcomm.com> In-Reply-To: From: Dmitry Baryshkov Date: Tue, 31 Mar 2026 04:22:17 +0300 X-Gm-Features: AQROBzDUu0m0vxRdZiV311FDBz_K9vvLMLjO71ysaQC6-lK9obqGdVTMB9BbA5Y Message-ID: Subject: Re: [PATCH 0/4] drm/panel: simple: add Waveshare LCD panels To: Marek Vasut 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 , Joseph Guo , Marek Vasut , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" X-Proofpoint-GUID: LBjfHOCwXWtK_sYL25TDkvNb8sK227T5 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzMxMDAxMCBTYWx0ZWRfXzmElIU5Zuihi NlDhmY055m9mT9jQ5peeDOvjX/049PkOHkxMNExbs6v4s9Nz0VIu2AZDAcaXj7dK3QH8tnoGy6Q 8MHeEgo2pf4D7E2zAaK8+2smpUjJS/u38NZPMW5EOe5DD3/XlJqi4u9BO0obtqd7Wk3fl0taiCc 7t1iqrxYciqsBAdiUo/1J4+FUgcFLlabEvoRgoe8+IJqAQ1w7hDM34pC6LuSYE5k8KEE6RHksF/ ddTXXQKz0H5YXJ97JCP1HVK9kLK0EAmszK+2PJTaIWVsDUGdunyJJ3LPBBSJ/8wlc/sCXTjwicl vB2+oFIiWIy2shzuBivtaSjU9uy5S98mB6t0wccB3ZjOUOwfWQJntu0Gk7WVYy85vZdQZKy0kla y87ZbI+cz41h6UIToCtl1CdrpQfA9CNzbRV9weDd6n5HBY8QuW8ofKYFd2Qnt/QwIa7JQN4eL3k 2a1c3OGUdbAHfxN5p0Q== X-Proofpoint-ORIG-GUID: LBjfHOCwXWtK_sYL25TDkvNb8sK227T5 X-Authority-Analysis: v=2.4 cv=H8/WAuYi c=1 sm=1 tr=0 ts=69cb21d5 cx=c_pps a=IZJwPbhc+fLeJZngyXXI0A==:117 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=b3CbU_ItAAAA:8 a=fCAXtarhQ_C1yj2ChB8A:9 a=QEXdDO2ut3YA:10 a=uG9DUKGECoFWVXl0Dc02:22 a=Rv2g8BkzVjQTVhhssdqe:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-30_02,2026-03-28_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 priorityscore=1501 bulkscore=0 spamscore=0 lowpriorityscore=0 clxscore=1015 impostorscore=0 phishscore=0 suspectscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603310010 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 Tue, 31 Mar 2026 at 00:07, Marek Vasut wrote: > > On 3/30/26 3:25 PM, Dmitry Baryshkov wrote: > > Waveshare have a serie of DSI panel kits with the DPI or LVDS panel > > being attached to the DSI2DPI or DSI2LVDS bridge. Commit 80b0eb11f8e0 > > ("dt-bindings: display: panel: Add waveshare DPI panel support") > > described two of them in the bindings and commit 46be11b678e0 > > ("drm/panel: simple: Add Waveshare 13.3" panel support") added > > definitions for one of those panels. Add support for the rest of them. > Can we by any chance use the icn6211 driver in tree for this ? As far as I can see, no. Waveshare kits have an extra ASIC in front of ICN6211 / ICN6202, which completely hides all programming. So far the interface is really better expressed by the waveshare,dsi2dpi / dsi2lvds: this way, even if they decide to change the actual implementation (like they did for DPI -> LVDS), we won't have to worry about it for as long as their programming interface remains stable. -- With best wishes Dmitry