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[2001:14ba:a073:af00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-396abd6cbe6sm31092601fa.0.2026.06.06.05.16.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 06 Jun 2026 05:16:06 -0700 (PDT) Date: Sat, 6 Jun 2026 15:16:04 +0300 From: Dmitry Baryshkov To: Arpit Saini Cc: Neil Armstrong , Jessica Zhang , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Ayushi Makhija , quic_rajeevny@quicinc.com, quic_vproddut@quicinc.com Subject: Re: [PATCH 1/2] dt-bindings: display: panel: add Ilitek ILI7807S panel controller Message-ID: References: <20260518-ili7807s-panel-v1-0-d7b048163b1c@oss.qualcomm.com> <20260518-ili7807s-panel-v1-1-d7b048163b1c@oss.qualcomm.com> <1ebc7c8a-b0de-4f25-b4dd-571909f9c67b@oss.qualcomm.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1ebc7c8a-b0de-4f25-b4dd-571909f9c67b@oss.qualcomm.com> X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjA2MDEyMiBTYWx0ZWRfX4j+KeEbBLWob GffkK1t15bAaKXhDUw0oshkvPPLm/wfJfo0ZQqxq1l+JHHXA8x4/KbtSSbIXfHeSyAsEiL0mDr4 J6yIPAkD8V7eDFl6Z+bMCT3pePKaYG6qSYt///oQlFwuqat7biqEf2hr2aeGqAn4hLT5NJ3DisX sKtk4tB5UnNCFcXTXXYvsvxDRTSYNQ/EKscNukAJb0th+oBNjxSoVcldNAHGm0ECmam8KmoyI3k Ys82EHWBW3nfipr1lWcG9orOddLpd5cpFj/MJK98KlT2Who8iN9qxwibDlBDgLnMMgIsRSPpdk8 cIbZJUhfBx0uvGDeqwYk54ytbapogbZ2yDIaQwWeqNNy/2LAT7CKTz1TUewVtJNZtWNuPQVN5sX m1ALOS7j9ldyqsYsmvmXclDRDOdbetuahEXCdwlWfmkNnRaHqyhawsfVeeqU5RCECL5mBuDaLzz r39/E4damqvHj75UeCg== X-Authority-Analysis: v=2.4 cv=CeY4Irrl c=1 sm=1 tr=0 ts=6a240f8a cx=c_pps a=N1BjEkVkxJi3uNfLdpvX3g==:117 a=xqWC_Br6kY4A:10 a=kj9zAlcOel0A:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=gEfo2CItAAAA:8 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=tJgGB5yCzY2aFmRDZG0A:9 a=CjuIK1q_8ugA:10 a=crWF4MFLhNY0qMRaF8an:22 a=sptkURWiP4Gy88Gu7hUp:22 X-Proofpoint-ORIG-GUID: XSoa8gWEHfWySpreBJIO3GBqsr-l0L3S X-Proofpoint-GUID: XSoa8gWEHfWySpreBJIO3GBqsr-l0L3S X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-06_03,2026-06-05_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 impostorscore=0 suspectscore=0 adultscore=0 priorityscore=1501 spamscore=0 malwarescore=0 phishscore=0 clxscore=1015 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606060122 On Wed, May 20, 2026 at 06:24:20PM +0530, Arpit Saini wrote: > Hi Dmitry, > > On 5/18/2026 9:53 PM, Dmitry Baryshkov wrote: > > On Mon, May 18, 2026 at 04:34:12PM +0530, Arpit Saini wrote: > > > ILI7807S is a DSI display controller used to drive MIPI-DSI panels. > > > The DLC DLC0697 1080x1920 LCD panel is based on this controller. > > > > > > The panel requires a reset GPIO, backlight enable GPIO, I/O voltage > > > supply (vddi), positive LCD bias supply (avdd) and negative LCD bias > > > supply (avee). The panel operates in video burst mode with four data > > > lanes using RGB888 pixel format. > > > > > > Signed-off-by: Arpit Saini > > > --- > > > .../bindings/display/panel/ilitek,ili7807s.yaml | 80 ++++++++++++++++++++++ > > > MAINTAINERS | 7 ++ > > > 2 files changed, 87 insertions(+) > > > > > > diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,ili7807s.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,ili7807s.yaml > > > new file mode 100644 > > > index 000000000000..93c511d03c00 > > > --- /dev/null > > > +++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili7807s.yaml > > > @@ -0,0 +1,80 @@ > > > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > > > +%YAML 1.2 > > > +--- > > > +$id: http://devicetree.org/schemas/display/panel/ilitek,ili7807s.yaml# > > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > > + > > > +title: Ilitek ILI7807S-based DSI panels > > > + > > > +maintainers: > > > + - Arpit Saini > > > + > > > +allOf: > > > + - $ref: panel-common.yaml# > > > + > > > +properties: > > > + compatible: > > > + items: > > > + - enum: > > > + - dlc,dlc0697 > > > + - const: ilitek,ili7807s > > > + > > > + reg: > > > + maxItems: 1 > > > + description: DSI virtual channel > > > + > > > + reset-gpios: true > > > + > > > + backlight-en-gpios: > > > + description: Backlight enable GPIO (active high) > > > > Is this actual GPIO or the GPIO-controlled supply? > > > Addressed here https://lore.kernel.org/all/dd065ccd-d7cb-45b5-8733-64b4f6571b3d@oss.qualcomm.com/ It's not. Or, from your description, I can assume that it is a PWM controller external to the panel. Please model it accordingly. I assume there is no 'backlight-en' pin on the panel connector. -- With best wishes Dmitry