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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzE2MDE4MiBTYWx0ZWRfXzsv/s6FIwNVm fUFV2J34L/NqXrWXbhr15tTr64M6WzQ8KMGzDV3sLRcDArIs2MXFG2jaGC2PT490AlAsm0zd2pz jZM5iyidBNCHxQ/WpfUHDjrtfJwD0bHYZ6c4Xqk0E1JBb4k48B7aVPQ5MZLkxPl5Zyd05ElLB6S ZEt4DWOWYGEuYzmFctv4rQ9wEUtDOLx5xhm7nns2ALTkdVA3JSAfA/Bh4QxuBNlDhkys+1ZdIrZ 1TNaP278gm5KcZmVvf6SO7yhYY/LSoHJ+9j7+VQKsVvoxRVDUmhYvBOHO/fTJ4IjVPulTfrZygY SGG/yUoqvzun8lRhXvBHku/hHVbPoCQbXAe0odfnXwR0nFIYaM61C4g1c2OkAtwG0pbxZalf648 P8VZEzcEZmRDNoNp2xBcfGuJJRyVTN8R9B4OLyAEuOiLAnoy+DnPtaEOQqMg71vdzVYnMz1B1oK V3JP0IVzl0bdVRYxJOA== X-Authority-Analysis: v=2.4 cv=WrEb99fv c=1 sm=1 tr=0 ts=6a591a2c cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=UaOxsxZaHnh8_INfHm8A:9 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 X-Proofpoint-GUID: VILoVHBH-Grj6xdYP9q03BRFzGhICPEg X-Proofpoint-Spam-Info: AW1haW4tMjYwNzE2MDE4MiBTYWx0ZWRfX6L1ZjHIjeGn/ MtEyRwoaX0YhKxp13Tqsp4JWNjPiHue7hEAt0NzNVGt8lc0BZ9T1sg36uCqDGzGzRcEbCe5EKFw E/ueRs3GPFudPV3JhPnPoEE7qCdfYfA= X-Proofpoint-ORIG-GUID: VILoVHBH-Grj6xdYP9q03BRFzGhICPEg X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-16_06,2026-07-15_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 phishscore=0 clxscore=1015 spamscore=0 priorityscore=1501 adultscore=0 malwarescore=0 bulkscore=0 lowpriorityscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607160182 On 7/14/26 9:21 AM, Arpit Saini wrote: > Hi Dmitry,Konrad > > On 7/10/2026 6:09 PM, Dmitry Baryshkov wrote: >> On Fri, Jul 10, 2026 at 05:28:04PM +0530, Arpit Saini wrote: >>> Hi Konrad, >>> >>> On 7/10/2026 2:31 PM, Arpit Saini wrote: [...] >>> Normally the backlight EN pin is controlled by a backlight driver. >>> >>> However, this panel uses MIPI DCS based backlight control with no >>> >>> separate backlight driver. Since there is no driver to assert gpio91, >>> >>> we control it via the panel's pinctrl default state.. >>> >>> So this is platform specific pin , we need this to enable/disable >>> >>> the backlight. >> >> Handle it from the panel driver. Also please fix your editor to prevent >> it from inserting extra empty lines. >> > > Earlier I handled it through panel driver, but this GPIO is specific to our > Qualcomm Daughter Card, it is not going to the panel connector. So is it an enable pin of a voltage regulator maybe? I'm having trouble understanding how this is all tied together, given the panel driver uses DCS commands to control the backlight status Konrad