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Mon, 21 Sep 2026 04:26:52 -0700 (PDT) X-Received: by 2002:a05:6214:4b0d:b0:90e:969d:6ea1 with SMTP id 6a1803df08f44-913fc8a2523mr1003796d6.1.1789990012168; Mon, 21 Sep 2026 04:26:52 -0700 (PDT) Received: from [192.168.202.12] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c2a3523a063sm282442566b.8.2026.09.21.04.26.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 21 Sep 2026 04:26:51 -0700 (PDT) Message-ID: Date: Mon, 21 Sep 2026 13:26:46 +0200 Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RFC 10/10] arm64: dts: qcom: sm6125-xiaomi-ginkgo: enable display, backlight and touchscreen To: kavakliyigitcan@gmail.com, Lee Jones , Daniel Thompson , Jingoo Han , Pavel Machek , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Helge Deller , Liam Girdwood , Mark Brown , Sumit Semwal , Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Dmitry Torokhov , Henrik Rydberg , Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Sean Paul , Marijn Suijten , Bjorn Andersson , Konrad Dybcio Cc: dri-devel@lists.freedesktop.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org, linux-input@vger.kernel.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org References: <20260911-ginkgo-submission-final-v1-0-0e68e63a18d4@gmail.com> <20260911-ginkgo-submission-final-v1-10-0e68e63a18d4@gmail.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260911-ginkgo-submission-final-v1-10-0e68e63a18d4@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=aJ9lOr9m c=1 sm=1 tr=0 ts=6ab1147d cx=c_pps a=UgVkIMxJMSkC9lv97toC5g==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=pGLkceISAAAA:8 a=1o3L4E6L0XnED3g1xlMA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=1HOtulTD9v-eNWfpl4qZ:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTIxMDE2NSBTYWx0ZWRfX+AFSxufhtf3q UedI9V3jAMQuZOBsrO9ivDczxCAn3nMqEcGaNwtp9DR+ioSbE2qaDrppBsfwv4+P6AXXmwFQuYj gliWo4gCWzrhR19nF9+kJmIixaxGRUY= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTIxMDE2NSBTYWx0ZWRfX9d0Cn5vYIxoN Em0EMGfGK/8p384yhDMcfy2eyOfHNsX+kdtgK9kgcvUZ24/ZVd5X7RUwAU2K1zJbuHiTj6V7fY1 cylK12+lmNSOclvGpaxj1fr/99D9xfTv+o0RzL7gsZuQOfGMr3xo9tMSO7sijERE/N3GRyDCroc lLVYDmCYAl9p9CWs5ufRdz1aR373o1JAMJgUk0cddN2HcV2RsiHW0/kbdE6Uc3ojCSU34xbkbEy waWCy6pYdvFSSPI1Let++VkNzmy60q9/dPsEf6o21P1kq78OLnE1GxGezpVFd3RH0WrY64s0QO3 NYcU0TNjZeGWyGg1UByl+Fy9iVAv8H02IxjkKUiwAK0JxFhP1sZlv7DSgud7WDDhaVrqdtzYT1Q z/yHNL4sjgZPKaPuJfu1DnJrbqjlAR8NWZ+NRvZJKTEanN+D2E4Fh92to4CugmjAqckWo8XyamZ DvHNsi4dmZqdwzY2bVQ== X-Proofpoint-ORIG-GUID: OkllBAp7pwuZazkLCZ5yOoOZ9FztnUv0 X-Proofpoint-GUID: OkllBAp7pwuZazkLCZ5yOoOZ9FztnUv0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-21_04,2026-09-16_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 lowpriorityscore=0 phishscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 suspectscore=0 adultscore=0 impostorscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609210165 On 9/11/26 10:51 AM, YİĞİTCAN KAVAKLI via B4 Relay wrote: > From: YİĞİTCAN KAVAKLI > > Enable the display subsystem (MDSS/MDP/DSI0), Kinetic KTD3136 backlight, > and Novatek NT36672A SPI touchscreen on the Xiaomi Redmi Note 8 (ginkgo). > > Hardware nodes added: > - Fixed LCDB regulators (lcdb_lab and lcdb_ibb at +/- 5.5V) > - MDSS and DSI0 with Tianma 1080x2340 FHD+ video panel > - I2C1 backlight node at 0x36 with PMI632 GPIO 6 hardware enable > - SPI2 touchscreen node at CS0 with GPIO 88 interrupt and panel follower > reference > - Touchscreen active pinctrl definition on GPIO 88 > > Signed-off-by: YİĞİTCAN KAVAKLI > --- > .../boot/dts/qcom/sm6125-xiaomi-ginkgo-common.dtsi | 100 +++++++++++++++++++++ > 1 file changed, 100 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/sm6125-xiaomi-ginkgo-common.dtsi b/arch/arm64/boot/dts/qcom/sm6125-xiaomi-ginkgo-common.dtsi > index 59042a5937535c4acda064fa0f865f4f5a52d01b..f4b9e2092a814e56cdc23218025cb4166dec110a 100644 > --- a/arch/arm64/boot/dts/qcom/sm6125-xiaomi-ginkgo-common.dtsi > +++ b/arch/arm64/boot/dts/qcom/sm6125-xiaomi-ginkgo-common.dtsi > @@ -26,11 +26,30 @@ / { > chassis-type = "handset"; > > qcom,msm-id = ; > + qcom,board-id = <34 0>, <34 1>, <34 2>, <34 3>, <34 4>, <0 0>; This should be a separate patch with the reasoning for the change > > aliases { > serial0 = &uart4; > }; > > + lcdb_lab: regulator-lcdb-lab { > + compatible = "regulator-fixed"; > + regulator-name = "lcdb_lab"; > + regulator-min-microvolt = <5500000>; > + regulator-max-microvolt = <5500000>; > + regulator-boot-on; > + regulator-always-on; > + }; > + > + lcdb_ibb: regulator-lcdb-ibb { > + compatible = "regulator-fixed"; > + regulator-name = "lcdb_ibb"; > + regulator-min-microvolt = <5500000>; > + regulator-max-microvolt = <5500000>; > + regulator-boot-on; > + regulator-always-on; > + }; LAB/IBB and LCDB are separate hardware blocks, only LCDB is present on PMI632. It provides a pair of pos/neg bias voltages. Looks like downstream has a driver for controlling this block. Konrad