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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-fbdev@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-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTIxMDE2NSBTYWx0ZWRfXyZfmAYL6SX76 Ex0Xd++FFS82yR5GVsrrs2a6qOW/bQ1a4rv/i9MIPTLdXRpVGITdPJrRXyM4idvtBH8KEgWh9eN VPizFXvmq2rNJHdOIb7U+tSjg16MWdRr5naC6GsBwk90z+VrXZ2cLU3nJaIoiy1ceGgGX3oTzDx WK+tSVqosiITP86rsxmhNN9dXK0hxy8UuXQcYYBA+/kd2XZ39yS4Q48/LyOLu18c7cxMHK4C2Di 798DTCFWX/WH02Ikxt6SE7ZtNNQgDCxtmRcHNuYOSK2lBHERe9TbsVNe3iu3zZXuwmSuPqO/QF6 5TWcqFauFg9+nugnwlLhKd224GpRYZkSOggiJZV/Ki3MrYGxwse3UpUiikg9NfAKGkGrc4sRYfj F6i7AotEFflG7cEfz4Skt1eXW5yl2OXVXbQ0EvvCBWkWE7/EKtdIl7BJSqh7FJ1pDWGmfw3lrOO IhWMI2D5+lrkPzAGbBQ== X-Proofpoint-ORIG-GUID: Q20CSPQBD-XdmIIodUqrhlXr9s7OxYH8 X-Proofpoint-GUID: Q20CSPQBD-XdmIIodUqrhlXr9s7OxYH8 X-Authority-Analysis: v=2.4 cv=dakVTnXe c=1 sm=1 tr=0 ts=6ab1147d cx=c_pps a=wEM5vcRIz55oU/E2lInRtA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=pGLkceISAAAA:8 a=1o3L4E6L0XnED3g1xlMA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=OIgjcC2v60KrkQgK7BGD:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTIxMDE2NSBTYWx0ZWRfXxVJFtz69r6KK SALQ9jzXYMKI1wivs2g2Iqo07hYSF7RIxbMwSCVF+h9ag5vHai8oYh0zP3OLYoD2X2fnY/QSDwR TNww/MZwXDh0gU8n8nUHkw11fNXMSlI= 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 clxscore=1015 lowpriorityscore=0 spamscore=0 adultscore=0 phishscore=0 bulkscore=0 priorityscore=1501 impostorscore=0 suspectscore=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